Isuzuperformance Catalog For Isuzu Cars

Isuzuperformance Logo. Isuzu Impulse, Isuzu Stylus, Isuzu I-Mark, Geo Storm, Geo Spectrum,
Asuna Sunfire, Asuna Sunburst, Isuzu Gemini, Isuzu Piazza, Lotus Elan

Isuzuperformance Product Collage

Celebrating 25 years of building the fastest Isuzus in North America

“Something that is apparent to me is the very high quality of Bill's (Isuzuperformance) parts. Hell of a job Bill.“
Steve Lockett, AKA RacerStev

Take a Spin with the Isuzuperformance Racing Team

EFFECTIVE JUNE 17, 2002, WE HAVE DISCONTINUED A NUMBER OF HIGH END/LOW VOLUME PRODUCTS AND ALSO PRODUCTS WHICH WE HAD PREVIOUSLY SOLD AT A LOSS. IN ADDITION, WE WILL NO LONGER BE DEVELOPING NEW PARTS FOR ISUZU, GEO STORM, OR LOTUS VEHICLES SPECIFICALLY TO SELL TO THE PUBLIC, AND WE ARE DISCONTINUING PRODUCTION OF MANY OF OUR OWN ORIGINAL PARTS FOR THESE SAME VEHICLES, IN ORDER TO DEVOTE MORE PRODUCTION CAPACITY TO OUR RACING PROGRAM AND OTHER PROJECTS.
OUR OWN ORIGINAL ISUZU, GEO STORM, OR LOTUS PARTS CAN NOW BE CONSIDERED LIMITED EDITION OR LIMITED PRODUTION. IF YOU SEE SOMETHING YOU DESIRE TO PURCHASE, WE SUGGEST YOU ORDER IT IMMEDIATELY BEFORE IT IS GONE. ONCE IT IS GONE, IT WILL BE GONE FOREVER.

WE CONTINUE TO OFFER PRODUCTS FOR THESE VEHCILES WHICH ARE MANUFACTURED FOR US BY OTHER COMPANIES.
PRODUCTS WHICH REMAIN AVAILABLE ARE DENOTED IN THE CATALOG WITH A PRICE NEXT TO THE PRODUCT DESCRIPTION. PRODUCTS WHICH ARE NO LONGER AVAILABLE ARE NOTED AS SUCH INSTEAD OF LISTING A PRICE.

Welcome to the catalog website of Isuzuperformance. Isuzuperformance is the only performance parts distributor in North America that is totally dedicated to supplying you with performance parts for your Isuzu, Geo Storm, Asuna Sunfire, and Lotus Elan M100 car.
We specialize in Isuzu Impulse/Piazza/Sunfire, Stylus/I-Mark/Gemini, Geo Storm and Lotus Elan M100.
We are specialists in Isuzu cars, but we do not offer anything for trucks, suvs, or commercial vehicles, and can not offer any assistance with those vehicles.

Isuzuperformance does not offer new OEM parts, because they would be cheaper through the dealership, and Isuzuperformance does not offer used parts beyond those we just happen to have.
The following companies will NOT be carried by Isuzuperformance, due to their fraudulent business practices, and their past attempts to defraud Isuzuperformance or it's employees: Erebuni Aerobutique, Jacobs Electronics, Superchips USA. (This is somewhat less of an issue currently, because all three of these companies have closed their doors).
Due to Hotshot Systems inability to deliver orders within a two month time span, we will no longer be carrying Hotshot Systems products. (This company is also no longer in business).
Due to excessive complaints reporting poor quality and poor fit, Pacesetter products will no longer be carried by Isuzuperformance. (This company last introduced a new product in 2007, and is probably also on their way out).

News

Mid Season 2014; Cold Weather Snap Oversteer Diagnosed

The 2014 season began with big changes to the rear spring rates of the IPRT I-Mark RS, to dial in more understeer and resolve the cold weather oversteer problem. As the limit of the car has been pushed farther and farther, in temperatures below 90 degrees, the tail of the car had been coming around mid-turn. As luck would have it, the car would receive valuable diagnostic input from Event 1 co-driver, Mike Marshall, who stated that the car had a nice predictable understeer and the tail would come around only when the brake pedal is touched while cornering, and then it would spin. Anyone fully committed to a left-foot-braking driving style, such as vehicle owner Bill Luton, would not have been able to diagnose that the issue was a brake bias problem, and not a suspension problem. Attention immediately focused on the brakes, and some math revealed that the I-Mark is different enough from the 90-93 Impulse/Stylus/Storm, that it needs a unique brake system itself. Weight distribution starts out more nose heavy at 65/35, and removing the interior reduces the light tail further to about 70/30. The smallest four piston calipers available on the rear are 60+% stronger than the 90-93 Impulse/Stylus rear calipers, and the largest four piston front caliper on the 90-93 Impulse/Stylus front caliper is only 30% stronger than the stock caliper. Conclusion: Too much rear brake.
So it is time to say goodbye to the faithful little blue heat tinted 9.7 inch front rotors, and take the rotating mass hit for the larger 11 inch diameter big brake rotors.
The rear suspension has been changed back, handling returned closer to neutral, and expectation is for a large improvement on hot and cold pavement.

Factory Five Daytona Owner Drives IPRT I-Mark RS, Beats Owner, Proclaims the car is "easy to drive fast"!

Mike Marshall's Factory Five Daytona Coupe was not ready for the Event 1 of the 2014 St. Louis SCCA Solo2 racing season, and he asked to co-drive the Isuzuperformance 1989 Isuzu I-Mark RS. Like the previous co-driver, Mike had never raced FWD before. He adapted very quickly, charging the course hard with a right-foot-braking driving style, but running a little wider than needed on the cones.
Vehicle owner Bill Luton less assertive with the accelerator pedal, chased Mike's times by a little over a second, ran a tighter line (catching several cones in the process), and struggled with persistent oversteer issues, related to his developing left-foot-braking driving style.
Mike eventually took the victory by 1.9 seconds.
Mike would later compliment the suspension setup by saying:
And:
Mike's comments would help diagnose a brake biasing problem and motivate changes to the brake system of the IPRT I-Mark.
- Bill's fastest run.

Front Row Kaihou Covers Bill Luton

Our friends at the Front Row Gemini Owners Club have published a five page article titled “America’s Isuzu Car Club; Bill Luton”, in the October 2013 issue of the Front Row Kaihou. This article is a biography of Mr. Luton, chronicling his work with Isuzu cars, involvement in the birth of the North American Isuzu car enthusiast community, the rise of the IsuzuWeb car club, the establishment of Isuzuperformance and single handed creation of the performance parts industry for Isuzu cars in North America, the fallout of the great club schism, and Mr. Luton’s continued involvement in motorsports.
We would like to thank the Front Row Gemini Owners Club for extending this honor to Mr. Luton, the IsuzuWeb, and Isuzuperformance.

2013; Year Of Cold Pavement

The Winter of 2013 in Missouri was 20 degrees below average, and foreshadowed a very chilly year. The first three events of the season were parka weather, and highly unfriendly to R-compound race tires. A violent snap-oversteer tendency reared its head, making the Isuzuperformance Racing Team I-Mark RS impossible to turn at speed. An incorrect rear tire pressure setting was blamed, mildly warmer temps arrived for mid season, and everything seemed resolved. The weather did not deliver the normal 90+ degree temperatures until a short hot spell in late Summer, for Event 8. The IPRT I-Mark RS stuck to the ground like super glue. Driving was just a question of holding the gas pedal to the floorboard, stabbing the brake to kick the tail sideways to turn, and steer the car through the 15 foot wide course, with the engine at WOT. No more worries about the JDM CRX SiR and Integra Type R, which could not keep up.
Fellow racers commented: "The handling is perfect, now it just needs 300 HP." The little car, with 130 HP stock spec engine, was arguably the best handling Isuzu on the continent, over 3-7 seconds faster than any Isuzu made or Isuzu powered car currently competing in autocross, namely Impulse RS AWD Turbos and Elan Turbos in Detroit Region (Michigan), Saginaw Valley Region (Michigan), Snake River Valley Region (Idaho), and Ohio Valley Region (Ohio), competing in XP, SM, SSP, and IMS classes.
Then chilly weather returned in the Fall, and brought with it that snap-oversteer. Frantic changes to tire pressure, damper settings, toe, and sway bars were all in vain. The competition's Factory Five Daytona Coupe made another strong charge to the points championship in the second half of the season. The IPRT I-Mark RS maintained the lead going into the final event, but could not put in an on-power run without spinning. So 2013 earns another second place for the IPRT I-Mark RS, behind the Daytona Coupe.
The off season will involve serious scrutiny of the rear alignment settings and rear suspension spring rate, as well as the possibility of preparing a second car specifically for cold and cool weather competition.

For Want Of A Nail, A Battle Was Lost

The age old poem explains that for the loss of a nail, a horsehshoe, a horse, a rider, a message, and a battle was lost, showing how the little details influence the overall results. And the racing axiom says “To finish first, first you must finish”. For want of a functioning ignition system, Event 7 was lost. On its sixth and final run, the Isuzuperformance Racing Team I-Mark RS was solidly on course for a personal record time, and take the victory away from the Factory Five Daytona Coupe. Then, 700 feet short of the finish, a newly rebuilt distributor melted, the engine stopped, and the car coasted across the finish line.
In a stock vehicle, the distributor regularly experiences 200°F, the same temperature as the valve cover. The electronics are rated to 230°F. The IPRT I-Mark, tuned a wee bit past stock and running a very hot spark, is seeing 250+°F.
We’ve adapted a technique from the Chevy muscle car and Fiero communities, by making a heat sink to pull heat away from the distributor. The new distributor goes into Event 8 untested, victory will mean success.

IPRT I-Mark Leading In Class Points At 2013 Mid Season

This year, the little Isuzuperformance Racing Team I-Mark RS may be confused by its XP Class competition, about just exactly which racing series it is competing in. The long term rival Factory Five Daytona Coupe returns, maybe this is 1960’s LeMans WSC GT. The 2011 STLSCCA #12 index driver (in a field of 324) has acquired a small fleet of JDM gray market cars, competing in a 1990 Honda CR-X SiR and a 1999 Honda Integra Type R, so maybe this is 1990’s N1 or Japan Touring Car. A visit from the neighboring region Factory Five GTM, perhaps modern FIA GT1/GT3. And the local Cobra club members have started competing en-mass, making XP look more like 1960’s FIA GT or USRRC.
After sorting through some early season rear grip issues with tire pressures and the new Kumho tires, the IPRT I-Mark RS has returned top two finishes in the last four races, and leads the series points at mid season. As has been proven again and again over the past 15 years, successfully campaigning an Isuzu in motorsports competition starts with turning the automotive food chain upside down.

2012; Lessons Learned The Hard Way

The Isuzuperformance Racing Team I-Mark started the racing season like a rocket, building a seemingly insurmountable lead by mid season. Only to see the car run successively slower at each event of the second half of the season.
Equipment improvements during the season included:
- Adjustable tension rods to improve cornering.
- Parallel brake proportioning valves to adjust brake bias.
- A taller front air dam to improve front end grip.
- Adjustments to the position of the seat, steering wheel, stick shift, and pedals to improve vehicle control.
By June, the car was running so fast that stress cracks started showing up around the doors and rear hatch. It seemed the car was driving out from under its body panels.
July and August were Left-Foot-Brake emersion, followed by September’s lesson in brake cooling and rotor glazing.
October brought a fuel pump failure, which turned into another lesson. The original fuel pump had been running out of pressure at high RPM for years, with the engine providing its full capacity of low end grunt, but seemingly running out of steam at upper RPM in the taller gears. With a new fuel pump, the car picked up a healthy 20 MPH in top speed.
Despite all this, finish times kept increasing instead of decreasing, as if the velocity of the car was overpowering the grip of the tires.
Going into the last event of the season, a double-points event, the lead was sufficient that there was no mathematical way the IPRT I-Mark could loose, even if the car did not attend that final event. Until the region officials changed the points formula for the final event. And on a 40 degree Fahrenheit weekend, a Daytona Coupe with throttle issues eked out a fraction-of-a-second victory over the IPRT I-Mark which spent most of the afternoon sliding sideways as if on ice skates. And the season points, which should have been a narrow victory for the I-Mark, turned into a narrow loss.
The final lesson learned the hard way: “Hoosier tires are good for 60 runs, not 120 runs”. The compound in the tires was past its life in July, and just got harder and lost more and more grip as the season drew to an end. Looking at the data, it’s clear that the 205 tread width tire is too large for a ~140 HP, 1967 lb. car, because the tire temperature never got above 135 degrees (140-160 degree operating range), and the tires are designed to wear through to the cords at the same time the compound reaches the end of its life. So the car needs a narrower tire and/or a softer compound tire, which Hoosier does not offer. 2013 will see a change to Hankook tires, maybe not as much grip, but perhaps a longer life compound.

Eliminating Caster And Camber Fluctuation

Adjustable Tension Rods for 1985-89 Isuzu I-Mark, Gemini, Chevrolet Geo Spectrum and Asuna Sunburst.
The first little tuning trick up the Isuzuperformance Racing Team's sleeve. Tension Rod in JDM jargon, Strut Rod in Muscle Car jargon, or Caster Rod in Australian car jargon. The stock rubber bushings flex and compress under acceleration, braking, and cornering, enough to make significant changes to the caster and camber. The spherical rod end completely eliminates the flex and the alignment changes and improving handling.

Starting With A Small Lead; Mid Season 2012

The Isuzuperformance Racing Team hit thr ground running in the Spring of 2012, starting the season with a fully sorted suspension and no changes from the Fall of 2011. By the Event 3, driver Bill Luton was setting personal records on the Index, pushing the car, and himself. faster than either had ever gone before, and the I-Mark started lifting the inside front tire again on corner exit. Never one to leave well enough alone, it was back to tuning springs and sway bars. Event 4 was a disappointment, a very slow time, only ten percent faster than 2011! A bit more shuffling of springs and sway bars, and the car is balanced and is not lifting that inside front tire off the ground.
Entering July, the IPRT I-Mark has faced a V8 Mustang, V8 converted RX-7, and a 2002 Pontiac Trans Am, and leads the points race with three first place victories.
Mike promises to be back with the Factory Five Daytona Coupe, with new suspension, brakes, and fuel injected Chevy V8 engine. But there are some tricky little tuning pieces for the I-Mark in the pipeline that will be going onto the car soon, to pick the pace up even more.
And while June's Evo School netted only a .8 second improvement (on a 33 second course), Jinx Jordan's comment: "This is a FAST car, for a car like this, Left-Foot-Braking is a must.", has been heeded. Anyone who might come across a little red car, flying through corners, with the engine singing loudly, and the brake lights lit up like a Christmas tree, then LFB school is in session.

Isuzuperformance Racing Team Lotus Elan M100 Polyurethane Engine Mount Bushings

Available for both Non-SIR / Non-Airbag and SIR / Airbag Equipped Elan M100.
Limited Production / Limited Availability.
Available for purchase for a limited time in our Ebay store at: http://stores.ebay.com/o-kushon.

Isuzuperformance Racing Team Driver, Bill Luton, Takes Second Place In St. Louis Region SCCA 2011 X Prepared Class Points Series

The Isuzuperformance Racing Team I-Mark takes a solid second place finish in the X Prepared class points series in the St. Louis Region SCCA, between the Mike Marshall, the owner of the above pictured Factory Five Daytona Coupe, and Gary Fogleman, the co-driver of the same Factory Five Daytona Coupe. The picture illustrates the level of competition that the IPRT I-Mark is up against. This vehicle is a replica of a Shelby Cobra Hard Top. Make no mistake, Mike has built the car specifically for autocross, with technical assistance from both Factory Five Racing Inc. and the international owners club.
The IPRT I-Mark started 2011 with a new rear suspension design. For the first four events, the car would not take a corner above 45 MPH without spinning. The Daytona Coupe was not running at 100% at the beginning of the year either, but had fewer issues and both driver and co-driver quickly built a lead in the points series. Co-driver Gary schooled everyone in the class at the fourth event with a shockingly fast time. In the second half of the season, the IPRT I-Mark was back into the victories and by the nineth and tenth events it was outhandling the Lotus Exiges. Counting the victories, Mike in the Daytona Coupe finished above Bill in the I-Mark five times, and the Bill in the I-Mark finished above Mike in the Daytona Coupe five times. But the points are given by the magnitude of victory, and Mikes early season wins over the sub-45 MPH I-Mark were large enough that it would have taken an additional two races in the season for Bill to claw back to first place.
But who complains when they are the 130 HP, four cylinder, FWD car, finishing between two drivers of a Cobra Hard Top?
2012 will see the IPRT I-Mark starting with a fully sorted suspension.

Lotus Elise Owner Drives IPRT I-Mark RS, Beats Owner, Proclaims "It Handles Better Than The Lotus!", Beats Three Lotus Exige S Drivers

The engine of Joe Floretta's 2005 Lotus Elise was running rough prior to the final St. Louis SCCA Solo2 event of 2011 (Event #9), and he asked to co-drive the Isuzuperformance 1989 Isuzu I-Mark RS. Joe had never driven FWD before, and had never driven the IPRT I-Mark before. But he got into the car and put down a scorching 44 second time on his first run. Before his second run, he proclaimed that the I-Mark handed better than his Lotus Elise (0:37). He beat the best time of the vehicle owner by .633 seconds. But both he and the vehicle owner bested the times of three different drivers sharing a Lotus Exige S Cup Car (supercharged, 240 HP, AP brake package).
Vehicle owner Bill Luton raised his own times to a personal record on the index for both the season and lifetime, and stated that it is clear that the car is no longer holding back his driving, but his driving is holding back the car. Six plus years of tuning have paid off, and the handling is right. "Hello, Evo School, when is your next available class opening?".
- Joe Run 1 - 44.816 seconds.
- Bill Run 1 - 45.587 seconds.
- Joe Run 2 - 43.729 + 1 Cone.
- Joe Run 2 (Outside Car) - 43.729 + 1 Cone.
- Bill Run 2 - 45.681 seconds.
- Bill Run 2 (Outside Car) - 45.681 seconds.
- Joe Run 3 - 43.622 seconds.
- Bill Run 3 - 44.255 seconds.
- Joe Run 4 - 44.037 seconds.
- Bill Run 4 - 44.587 seconds.
- Final Results, #9 - St. Louis Region SCCA Solo Event #9 - Sun 10-09-2011

Exhale, Powerfully

It's hard to beleive that the Isuzuperformance Racing Team I-Mark RS has been doing battle with Lotus Sevens, Lotus Elises, Evos, STis, and Daytona Coupes, on a basically stock, transplanted, 90-91 1.6 liter DOHC engine. Power adders had been confined to some aluminum pieces, and a cat back exhaust, with full concentration going to the suspension. The guiding tenet being "Don't waste time increasing the power of an autocross car until the suspension is fully sorted so the car can actually do something with the additional power".
At Event 8, a Super Stock class Elise owning passenger commented:
If an Elise owner says that a 130 HP, FWD, rear beam axle nightmare corners better than his own car built by the boys in Hethel, then the suspension is sorted, and it's time to start building some horsepower.
Out comes an Isuzuperformance header, with a full battery of reinforcement welding, side straps and gussets, engine block bracket, and big muscle car three bolt collector.

Low Calorie Pulleys

Step two of the 2011 XP Class Points War. Previously set aside for a rainy day, the aluminum underdrive pulleys go into use. With power steering delete, for the manual steering I-Mark RS, the two pulley set nets a 7.34 pound drop in rotating mass.

Isuzuperformance Heavy Duty 4XE1 Connecting Rod Bolts

For 1990-93 Isuzu Impulse, Stylus, Gemini, Geo Storm and Lotus Elan with 4XE1 engines, and 1985-89 Isuzu I-Mark, Gemini, and Chevrolet/Geo Spectrum with 4XC1 engines.
Heavy duty bolts heat treated to 230,000 PSI tensile strength are many times stronger than the OEM bolts, and stronger than ARP bolts (4.5% stronger than bolts rated at 220,000 PSI and 15% stronger than bolts rated at 200,000 PSI). Prevents throwing of rods through the front of the block and spun rod bearings caused by failure of the weak OEM bolts.

The Big H On The Big V

Undoubtedly this combination violates numerous laws of the universe. Even the suggestion should cause a hole to open up and swallow the combination. This is one of a set of Hoosier A6 tires mounted on Volk TE37 wheels. That is the best autocross racing tire of North America paired with the best light weight racing wheel of Japan. Anything that good has to be illegal, immoral, and fattening.
The Kumho Victoracers provided many years of racing and very long tread life (300+ runs on a tire!). But at this time, there seems a distribution or delivery problem with tires from Korea. The US Isuzuperformance Racing Team members have been forced to switch tire brands and suppliers, to the Big H and Hoosier Tire Midwest.
Initial results are promising, with a victory over the Daytona Coupe on the first outing with the new tires. Once the tire pressure settings are sorted, we should see a giant leap forward.

Mid Season 2011; The Uphill Battle Begins

Winter 2010 was marked by the discovery that the custom made rear springs of the Isuzuperformance Racing Team 1989 I-Mark RS, were in fact 1/3 the spring rate that was ordered from a Kansas manufacturer. This prompted yet another radical redesign of the rear axle to accept coilover springs. What had been a quest to find the biggest rear sway bar built by man, became a quest for ever smaller sway bars as tuning commenced with the 2011 season. Spending five races to sort the suspension on a car that oversteers at each successive press against the limit, is not the way to build a comfortable lead in a racing series.
Meanwhile, the competition in the Daytona Coupe have upped the ante, Rebuilding the suspension specifically for autocrossing, taking the extreme step of corner weighting to optimize the handling, and sparing no expense turning the endurance road racing replica into a cone carving monster. This is accompanied by an astonishing driving skill development, raising the team from the 78th percentile to the 93rd percentile in finishing position in a matter of ten weeks.
2011 will be decided in the second half of the season, as the tuning, driving, and spending reach a frenzied pace.

Type C Engine

The Type Competition was a special edition Gemini built to commemorate Isuzu's Factory Racing Team victories as All Japan Rally Class B Driver Champion for 1990, 1991, and 1992, and N1 Taikyu Endurance Series Class 2 Champion in 1991.
These limited production vehicles were special edition models equipped with many of the same racing components of the rally and circuit machines they pay tribute to. Engines were specially assembled with internals carefully matched for weight and clearances, resulting in factory "balanced and blueprinted" engines, with power output significantly above the 180 PS (178 HP) of the standard Gemini engine. Visibly, the Type C engine is set apart from the standard with a blue upper intake manifold and blue valve cover.
This engine is from the Isuzuperformance Racing Team Gemini, removed for inspection, and found to be in almost new condition. The original connecting rod bolts were replaced with IPRT units, and a fresh set of OEM piston rings installed, and the engine is back powering the IPRT Gemini.

Isuzuperformance Racing Team JT1s Front Lower Control Arms

For 1990-93 Isuzu Impulse, Piazza, Stylus, Gemini, Geo Storm, and Asuna Sunfire. Front Wheel Drive and All Wheel Drive.
Lotus/Irmscher style bolt on or ball joint sway bar end link mounts. Threaded, bolt on aft bushing for use with the Isuzuperformance Racing Team Polyurethane Suspension Bushing Sets.
Not for sale to the public.

Isuzuperformance Racing Team JT0s Front Control Arms

For 1985-89 Isuzu I-Mark, Chevrolet/Geo Spectrum, Asuna Sunburst, Isuzu Gemini JT150 and JT190.
Original front control arms are held together by eight spot welds. Reinforced with continuous seam welds, strength and stiffness is more than doubled over the originals.
Not for sale to the public.

Isuzuperformance Racing Team Driver, Bill Luton, Wins St. Louis Region SCCA 2010 X Prepared Class Championship

2010 was a particularly competitive year for the X Prepared class, with the addition of several new contenders as well as equipment and driver training for returning competitors.
The 2007 Factory Five Daytona Coupe driver/owner and co-driver had attended numerous driving schools as well as changing final drive ratios to maximize acceleration. The Lotus Elise Supercharged driver returned with another year of experience under his belt. In addition to these, new competitors included the 2007-2009 STL Region Third Place Overall Index Points winner and owner of a 2005 Subaru Impreza STi, and his co-driver the 2007-2009 STL Region Top Ten Overall Index Points winner, a Lotus Exige, a co-driver for the Lotus Elise Supercharged, a 2008 Mitsubishi Lancer Evo, and a road race prepped 1994 Ford Taurus SHO whose driver and co-driver have been active racers in the region for many years.
The Isuzuperformance Racing Team I-Mark competed with no significant equipment changes, and depended solely on a diet of thorough and drastic alignment adjustments to maximize the affects of the previous years suspension upgrades, feather like chassis weight, and 130 HP 90-91 stock spec engine, to edge out the competition in vehicles valued at many times more than the little I-Mark, and all of whom make double or more the horsepower of the little I-Mark.
The driver was quoted as saying "Once we modified the non-adjustable rear axle to allow for toe and camber adjustment, the car really came to life. Then we took the front alignment settings to the extreme, and our indexed times dropped noticeably."
Second place was the 2007 Factory Five Daytona Coupe driven by the car owner, third place was the same 2007 Factory Five Daytona Coupe driven by the co-driver, fourth place was the 2005 Lotus Elise SC (supercharged), fifth place was a tie between the 2005 Subaru Impreza STi driven by the 2007-2009 third place overall index points winner and the Lotus Exige, seventh place was the 2005 Lotus Elise Supercharged diven by the co-driver, eighth place was the 2008 Mitsubishi Lancer Evo, ninth place was the 2005 Subaru Impreza STi driven by the 2007-2009 top ten overall index points winner, tenth and eleventh places were the road race prepared 1994 Ford Taurus SHO driven by the owner and co-driver in that order.
First place victories include:
- First Place; X Prepared Class; STL Region SCCA 2008 Takata / Solo Performance Specialties Series Autocross Event #4, May 9, 2010, St. Louis, Missouri, USA.
- First Place; X Prepared Class; STL Region SCCA 2008 Takata / Solo Performance Specialties Series Autocross Event #5, May 23, 2010, St. Louis, Missouri, USA.
- First Place; X Prepared Class; STL Region SCCA 2008 Takata / Solo Performance Specialties Series Autocross Event #8, July 11, 2010, St. Louis, Missouri, USA.
The team even took the car out for a Gymkhana event at Gateway Raceway on May 8, 2010, as a good opportunity for a practice session. Bad news for the field of turbocharged Sylvias at the event, who could not match the little I-Mark's time, even thought the I-Mark has no emergency brake to induce a drift. All in good fun, and the drifters found a new respect for a well tuned FWD chassis that can actually inertia drift at speeds as low as 35 MPH.

Isuzuperformance Racing Team Sugiyama Shims

For 1990-93 Isuzu Gemini, Stylus, Piazza, Impulse, Geo Storm, and Asuna Sunfire.
For fine tuning the Nishiboric four wheel steering oversteer and understeer characteristics. Provides for tuning specific to vehicle use, from straight line stability for drag racing to high rear slip angle for drifting.
Not for sale to the public.

Isuzuperformance Racing Team 4XE1 and 4XF1 Aluminum Crank Sprockets

For 1990-93 Isuzu Impulse, Stylus, and Geo Storm, and 1990-93 Isuzu Gemini and Piazza, with 1.6 Liter DOHC (left) and 1.8 liter DOHC Engines (right).
A direct replacement for the long discontinued and brittle cast steel OEM crank sprockets, these aluminum crank sprockets weigh less than half as much as the originals. The weight savings may not seem significant, but when combined with the Isuzuperformance Racing Team aluminum flywheel, clutch pressure plate assembly, crank pulley, power steering pump pulley, alternator pulley, and cam sprockets, this accounts for a reduction of over 14 pounds 12 oz (14.75 lb) in the rotating mass of the engine, and a power gain of 25+ HP before even touching the pistons, cams, intake, exhaust, or computer.
Not for sale to the public.

Isuzuperformance Racing Team Driver, Bill Luton, Wins St. Louis Region SCCA 2009 X Prepared Class Championship

Another successful year for the St. Louis branch of the Isuzuperformance Racing Team.
Second place was won by a Lotus Elise SC (supercharged), Third and Fourth places were won by a 2007 Factory Five Daytona Coupe.
Victories include:
- First Place; X Prepared Class; STL Region SCCA 2008 Solo Performance Specialties Series Autocross Event #1, March 29, 2009, St. Louis, Missouri, USA.
- First Place; X Prepared Class; STL Region SCCA 2008 Solo Performance Specialties Series Autocross Event #2, May 10, 2009, St. Louis, Missouri, USA.
- First Place; X Prepared Class; STL Region SCCA 2008 Solo Performance Specialties Series Autocross Event #3, May 25, 2009, St. Louis, Missouri, USA.
- First Place; X Prepared Class; STL Region SCCA 2008 Solo Performance Specialties Series Autocross Event #6, August 16, 2009, St. Louis, Missouri, USA.
- First Place; X Prepared Class; STL Region SCCA 2008 Solo Performance Specialties Series Autocross Event #7, August 30, 2009, St. Louis, Missouri, USA.
- First Place; X Prepared Class; STL Region SCCA 2008 Solo Performance Specialties Series Autocross Event #8, October 18, 2009, St. Louis, Missouri, USA.

Isuzuperformance Racing Team 4XE1 Windage Tray

For 1990-91 Isuzu Impulse, Stylus, and Geo Storm, and 1990-93 Isuzu Gemini, with 1.6 Liter DOHC Engine.
Reduces oil splashing and keeps the oil in the pan, allowing additional power that would normally be lost without the use of a windage tray.
Not for sale to the public.

Isuzuperformance Racing Team JT1s Rear Lower Control Arms and Trailing Arms

For 1990-93 Isuzu Impulse, Piazza, Stylus, Gemini, Geo Storm, and Asuna Sunfire. Front Wheel Drive and All Wheel Drive.
Finding a lack of unbent used control arms and trailing arms for use with the Isuzuperformance Racing Team Polyurethane Suspension Bushing Sets, Isuzuperformance manufactured new reproductions of the originals.
Not for sale to the public.

Isuzuperformance Racing Team Four Wheel Endurance Racing Brake Kit

It started as a challenge, to fit the largest body four piston caliper available onto the stock 90-93 front rotor, then match a four piston caliper for the rear, all retaining the same fluid capacity as provided by the original master cylinder.
The result was the basis for a completely new modular brake system. This allows for the use of vented front disks ranging in thicknesses from .81 to 1.0 inches and diameters from 9.7 to 13 inches, and rear brakes from .29 solid to .86 vented and diameters from 10.1 to 13 inches. Brake pads are 20-40% larger than original, sweep a wider area on the rotor, and there are a myriad of different compounds available.
Configured on the OEM brake disks, this system provides about four times the braking force of the original 90-93 brake calipers, while eliminating brake drag caused by floating calipers.
Designed for track use on racing vehicles. Designed for endurance racing, 12-24 hour events, when configured with 1 inch thick vented front rotor and .86 inch thick vented rear rotor.
Not for sale to the public.

Isuzuperformance Racing Team Clutch Lever

Reduces the pedal 45 pound pedal effort of the Isuzuperformance Racing Team clutches back to a more managable 35 pounds, the same pedal effort of other manufacturer's racing clutches. Reduces driver strain and fatigue, reduces stress on the vehicle fire wall, allows for more precise clutch control and feathering for more consistent launches. Reinforced and heavy duty construction.
Not for sale to the public.

Isuzuperformance All Wheel Drive Rear Wheel Bearing / Rear Hub Assembly
For Isuzu Impulse RS AWD Turbo, Isuzu Gemini JT191S AWD Sedan and Coupe, and Isuzu Piazza JT221 with ABS.
Rear bearing and hub assembly for all wheel drive models featuring replaceable sealed tapered roller bearing with tempered and heat treated bearing races last more than four times longer than the long discontinued OEM hub units.
Not for sale to the public.

Isuzuperformance Racing Team Driver, Bill Luton, Wins St. Louis Region SCCA 2008 X Prepared Class Championship

In a season long battle against a Lotus Elise SC (supercharged), the Isuzuperformance 1989 I-Mark RS proved victorious. Impressive enough considering the I-Mark has been running a 1991 stock trim built engine, meaning the Elise SC has almost double the horsepower. But even more so because the I-Mark starting the season on a compeletely new coilover suspension, which was not properly dialed-in until after the last points event of the season.
Victories include:
- First Place; X Prepared Class; STL Region SCCA 2008 Solo Performance Specialties Series Autocross Event #2, April 13, 2008, St. Louis, Missouri, USA.
- First Place; X Prepared Class; STL Region SCCA 2008 Solo Performance Specialties Series Autocross Event #3, August 17, 2008 (Postponed due to high winds), St. Louis, Missouri, USA.
- First Place; X Prepared Class; STL Region SCCA 2008 R & S Racing, Solo Performance Specialties Series Gateway National Autocross and Event #4 (Combined Double Points Event), May 25-26, 2008, St. Louis, Missouri, USA.
- First Place; X Prepared Class; STL Region SCCA 2008 Solo Performance Specialties Series Autocross Event #5, July 13, 2008, St. Louis, Missouri, USA.
- First Place; X Prepared Class; STL Region SCCA 2008 Solo Performance Specialties Series Autocross Event #6, July 27, 2008, St. Louis, Missouri, USA.

Isuzuperformance Racing Team Nascar Style I-Mark Rear Sway Bar

For 1985-89 Isuzu I-Mark JT, Gemini JT150 and JT190.
Modular style rear sway bar adapts Nascar technology to import cars. Can be configured for various rates between 9.8 lb/in to 384 lb/in in 25 even steps. The bar pictured is 12.4% stiffer than the largest OEM bar available.
Not for sale to the public.

Isuzuperformance Racing Team Bellett Brake Disks, Pads, and Shoes

For 1964-73 Isuzu Bellett GT and GT-R.
OEM reproduction disks turned from 80-55-06 Ductile Iron billet provide better wear and friction properties than original cast rotors. Performance pads feature modern ceramic carbon compound for excellent initial bite while minimizing rotor wear, for hot street and autocross use. OEM reproduction rear brake shoes feature modern organic metallic compound with high friction coefficient.
Not for sale to the public.

Isuzuperformance Racing Team AL Series Coilovers

For 1990-93 Isuzu Impulse, Stylus, Gemini, Piazza, Geo Storm, Asuna Sunfire, and 1985-89 Isuzu I-Mark and Gemini.
32 position compression and 32 position rebound adjustment. Ultra light all aluminum body with anodized finish. Threaded lower bracket.
Not for sale to the public.

Isuzuperformance Racing Team Front Camber Plate

For 1990-93 Isuzu Impulse, Stylus, Gemini, Piazza, Geo Storm, Asuna Sunfire
All aluminum construction. Unique design allows the spring to support the weight of the vehicle, not the damper piston.
Provides 4 1/2 degrees of camber adjustment.
Not for sale to the public.

Isuzuperformance Racing Team Front Camber Plate

For 1985-89 Isuzu I-Mark and Gemini.
All aluminum construction. Unique design allows the spring to support the weight of the vehicle, not the damper piston.
Provides 4 1/2 degrees of camber adjustment.
Not for sale to the public.

Isuzuperformance Racing Team Ferro-Carbon Clutch Disk

For 1990-93 Isuzu Impulse, Stylus, Gemini, Piazza, Geo Storm, Asuna Sunfire, and 1985-89 Isuzu I-Mark and Gemini.
Ferro-Carbon composite friction material has the grip of ceramic, the wear characteristic of organic.
Not for sale to the public.

Isuzuperformance Racing Team Mentioned On CBSSports.Com
CBS Sports Writer credits the Isuzuperformance Racing Team for representing the Isuzu marque in racing on his blog on the CBS Sports website.
Thank you Mr. Kay.

Isuzuperformance Racing Team Polyurethane Suspension Bushing Sets

For 1990-93 Isuzu Impulse, Piazza, Stylus, Gemini, Geo Storm, and Asuna Sunfire. Front Wheel Drive and All Wheel Drive.
Set of 18 polyurethane bushings with stainless steel center sleeves, and steel front lower control arm bracket. Replaces all 16 suspension bushings of the vehicle, and includes alternate two rear spindle lower bushings for AWD cars.
Not for sale to the public.

Isuzuperformance Racing Team Front Lower Control Arm Bushings

Left: OEM. Right: Isuzuperformance Racing Team.
For 1990-93 Isuzu Impulse, Piazza, Stylus, Gemini, Geo Storm, and Asuna Sunfire.
Steel bushing bracket with polyurethane bushing and stainless steel center sleeve. Just one of the eighteen bushings that make up the Isuzuperformance Racing Team Polyurethane Suspension Bushing Set.
Not for sale to the public.

Isuzuperformance Racing Team Polyurethane Differential Carrier Bushings

For Isuzu Impulse RS AWD Turbo and Isuzu Gemini JT191S Sedan and Coupe. True, solid polyurethane differential carrier bushings with stainless steel center sleeves. 65% stiffer than OEM. Eliminates movement of the differential assembly and rear drivetrain sending more power to the ground.
Not for sale to the public.

Introducing the Isuzuperformance Racing Team Isuzu Gemini Irmscher-R JT191S AWD Turbo Sedan

Look for this vehicle at Redline Time Attack events in the eastern half of the US.

Isuzuperformance Returned to Japan for the 2007 Isuzu Owners Meeting

Isuzuperformance returned to Japan on May 31, 2007 through June 15, 2007, to attend the 2007 Isuzu Owners Meeting / All Japan Isuzu Meeting. While in Japan, Isuzuperformance attended Round 2 of the Japanese LeMans Series at Fuji Speedway, toured Aquarius Motorsports outside Kyoto, toured the Toyota Headquarters, Museum, and Assembly Plant, visited Isuzu owners in Hokkaido and aquired a 1991 Isuzu Gemini JT191S Sedan, attended the Isuzu car show in Kuragari, visited Isuzu owners in Yokohama, and toured the Open Road shop outside Yokohama.

Isuzuperformance Racing Team JT0s Polyurethane Engine Mount Bushings

For 1.5 liter Non-turbo, 1.5 liter Turbo, and 1.6 liter DOHC Isuzu I-Mark, Chevrolet Spectrum, Asuna Sunburst, Isuzu Gemini JT150 and JT190. Shown in 1.6 liter DOHC brackets. True, solid polyurethane engine and transmission mount bushings with stainless steel center sleeves. 65% stiffer than OEM, 62% stiffer than OEM filled with silicone/urethane caulk. Eliminates engine and transmission movement, wheel hop, and part throttle bucking, while putting more power to the ground.
Not for sale to the public.

Isuzuperformance Racing Team JT1s FF/FWD Polyurethane Engine Mount Bushings

For all 1.6 liter Isuzu Impulse, Isuzu Stylus, Geo Storm, and Isuzu Gemini JT191, with Manual Transmission. FWD. True, solid polyurethane engine and transmission mount bushings with stainless steel center sleeves. 65% stiffer than OEM, 62% stiffer than OEM filled with silicone/urethane caulk. Eliminates engine and transmission movement, wheel hop, and part throttle bucking, while putting more power to the ground.
Not for sale to the public.

Isuzuperformance Racing Team JT1s AWD Polyurethane Engine Mount Bushings

For all 1.6 liter Isuzu Impulse RS and Isuzu Gemini JT191S, with Manual Transmission. AWD. True, solid polyurethane engine and transmission mount bushings with stainless steel center sleeves. 65% stiffer than OEM, 62% stiffer than OEM filled with silicone/urethane caulk. Eliminates engine and transmission movement, wheel hop, and part throttle bucking, while putting more power to the ground.
Not for sale to the public.

Isuzuperformance Racing Team JT1s Polyurethane Transfer Case Bushing and Bracket

For all 1.6 liter Isuzu Impulse RS and Isuzu Gemini JT191S, with Manual Transmission. AWD. Solid polyurethane transfer case bushing shown with Isuzuperformance Racing Team bushing bracket. This bracket is 20% stronger than the OEM bracket.
Not for sale to the public.

Isuzuperformance Racing Team Four Wheel Big Brake Kit

The brake setup that the AWD Impulse RS and Gemini Irmscher-R should have come with.
11 inch front slotted vented composite rotor, 10.75 inch rear slotted solid composite rotor. Wilwood Dynalite Forged 4 Piston Billet Aluminum Front Calipers. Specifically designed to handle track use on 450+ HP vehicles weighing 2,700 pounds. Requires 15 inch or larger wheels.
Not for sale to the public.

Isuzuperformance Racing Team Adjustable Cam Sprockets

For 1989-93 Isuzu Impulse, Stylus, Gemini, I-Mark RS, Geo Storm and Lotus Elan with 1.6 liter DOHC engines, turbo and non-turbo.
Left, 1.6 liter Non-turbo. Right, 1.6 liter Turbo.
All 6061 T6 aluminum, 18% lighter than stock. CNC machined to more exacting tolerances than even original gears. The outside ring is coal blasted before being hard anodized. The coal blasting gives the gear a textured surface for the belt to hold on to. The hard anodizing makes the outer ring incredibly durable. Inner ring polished to a mirror finish and clear anodized. 24 degrees of adjustment. Four stainless steel studs are used to lock the gear in place to prevent any slippage. Lineup "peg" holes provided for ease of belt installation.
Not for sale to the public.

Isuzuperformance Racing Team Underdrive Pulley Sets

For 1989-93 Isuzu Impulse, Stylus, Gemini, I-Mark RS, Geo Storm and Lotus Elan with 1.6 liter SOHC and DOHC engines, turbo and non-turbo.
Left, set of three for vehicles with power steering. Right, set of two for vehicles with manual steering.
6061 T6 aluminum, polished to a mirror finish for beauty and anodized for durability. Reduces rotating mass by 5.825 pounds. Accessory belts are underdriven for further power gain. Crank pulley, power steering pulley, and alternator pulley.
Not for sale to the public.

Isuzuperformance Racing Team Rear Lower Tie Brace

Rear.
304 Stainless Steel. Completely eliminates flex in the rear suspension cross member.
Not for sale to the public.

Isuzuperformance at 2006 All Japan Isuzu Meeting / 2006 Isuzu Owners Meeting

Isuzuperformance attended the 2006 Isuzu Owners Meeting on June 11, 2006. Highlights of the trip included a visit to the Shrine at Ise, Suzuka Circuit, Mazda Museum and Assembly Plant in Hiroshima, Miyajima, the Gerald Shop in Nagoya, Niimi Nankichi Memorial Museum, Handa City Library and Museum, Shiho Doll Museum, Nissan Yokohama Engine Plant and Museum, Odaiba and Toyota Megaweb, Miraikan Museum, and the Meiji Shrine.

Group Photo
Front Row Members Group Photo

Isuzuperformance at Suzuka Circuit

Isuzuperformance on track at Suzuka Circuit. Lap time: 3:32.

High Altitude Testing

May, 2004, the Isuzuperformance Racing Team conducts chassis and engine tuning tests in a newly prepared 1991 Isuzu Stylus XS at Pike's Peak, Colorado, the site of the "Race to the Clouds" Pike's Peak International Hill Climb, held annually in June.

Isuzuperformance Autocross Victories

Isuzuperformance has been campaigning a 1991 Isuzu Stylus XS driven by Bill Luton in the D Street Prepared Class of the St. Louis Region of the Sports Car Club of America. This car has been built for autocross competition using only Isuzuperformance parts. The 2002 season has been particularly fruitful for the team, as they have taken first place finishes in eight of the eleven races they have competed in this year. Victories include:
- First Place; D Street Prepared Class; STL Region SCCA 2002 Extreme Exhaust Champoinship Series Autocross Event #3, April 7, 2002, St. Louis, Missouri, USA.
- First Place; D Street Prepared Class; STL Region SCCA 2002 Extreme Exhaust Champoinship Series Autocross Event #4, April 21, 2002, St. Louis, Missouri, USA.
- First Place; D Street Prepared Class; STL Region SCCA 2002 Extreme Exhaust Champoinship Series Autocross Event #6, May 12, 2002, St. Louis, Missouri, USA.
- First Place; D Street Prepared Class; STL Region SCCA Gateway To Nationals Divisional Autocross Event, May 26-27, 2002, St. Louis, Missouri, USA.
- First Place; D Street Prepared Class; STL Region SCCA 2002 Extreme Exhaust Champoinship Series Autocross Event #7, June 9, 2002, St. Louis, Missouri, USA.
- First Place; D Street Prepared Class; STL Region SCCA 2002 Extreme Exhaust Champoinship Series Autocross Event #9, August 11, 2002, St. Louis, Missouri, USA.
- First Place; D Street Prepared Class; STL Region SCCA 2002 Extreme Exhaust Champoinship Series Autocross Event #10, September 1, 2002, St. Louis, Missouri, USA.
- First Place; D Street Prepared Class; STL Region SCCA 2002 Extreme Exhaust Champoinship Series Autocross Event #11, October 6, 2002, St. Louis, Missouri, USA.
At the St. Louis Region SCCA 2002 Year End Banquet, Bill Luton will be awarded the trophy for D Street Prepared Points Champion for the St. Louis Region, having taken double the points of any other driver in that class and finishing ninth out of 350+ drivers in the region for most points earned.

Isuzuperformance returns from Japan
Isuzuperformance attended the 2002 Gemini Owners Meeting in Okazaki Japan on June 2, 2002, toured the Isuzu factory at Fujisawa as well as the Eagle Sayama and Gerald performance shops in Japan. We have returned, and will be putting an account of the trip and the show on the Isupage and the IsuzuWeb websites.

Congratulations to IsuzuWeb Members for Carlisle 2002.
Congratulations to the members of the IsuzuWeb for their participation in the 2002 Carlisle Custom Compact Power Jam/Custom Compact Nationals Show. For the second year in a row, the IsuzuWeb was the only Isuzu car club attending the show and again took more than its fair share of awards at the Custom Compact Power Jam.
Member Eric Filion was awarded first place in the Asian Isuzu Storm/Impulse/Asuna Mild class for his 1993 Asuna Sunfire.
Member Scott Aguilar was awarded second place in the European 2 Dr Sport class for his 1991 Lotus Elan M100 SE.
IsuzuWeb members Dave Sammynaiken, Keith Zimmerman, Scott Aguilar, and Bill Luton also competed in the NASA time trial/autocross racing event in their Isuzu cars, the only Isuzu cars raced at the event that weekend.
For in-depth coverage of the event, check for a forthcoming writeup on the Isupage.
IsuzuWeb Lobbies for Model Isuzu Cars
Modifiers Performance Systems, made by the company that manufactures the Tech Deck collectable skate board models, has announced that they are developping a line of modifiable model cars. They have asked the public to suggest which makes and models of automobiles they should make, and post opinions and suggestions on their message board. The IsuzuWeb has been actively lobbying Modifiers to make models of Isuzu cars, especially 83-89 Impulse, 85-89 I-Mark, and 90-93 Impulse, Stylus, and Storm. We ask all Isuzu enthusiasts to help by lending their voice to back our suggestions on the Isuzu car suggestion thread.

DYNO TESTED, DYNO PROVEN: Stan's Headers Brand Headers and Exhaust Systems Outperform Any Other Header Or Exhaust System For Isuzu And Storm Cars!
Click here to read and see the dyno test comparisons and see how Stan's Headers brand headers produce 6.5 more peak horsepower than Pacesetter and Stan's Headers brand exhaust systems produce over two times the peak horsepower gain of Pacesetter.
There is no comparison, and now, with dyno testing as proof, there is no question. Stan's Headers are the highest quality and most powerful headers and exhaust systems for Isuzu and Storm cars.
Congratulations to IsuzuWeb Members for Carlisle 2001.
Congratulations to the members of the IsuzuWeb for their participation in the 2001 Carlisle Custom Compact Power Jam. The IsuzuWeb was the only Isuzu car club attending the show and again took more than its fair share of awards at the Custom Compact Power Jam.
Member Eric Filion was awarded third place in the Asian Isuzu Storm/Impulse/Asuna Mild class for his 1993 Asuna Sunfire.
Member Michael Gainey was awarded first place in the Asian Isuzu Stylus/I-Mark Semi Wild class for his 1989 Isuzu I-Mark RS.
Member Bill Luton was awarded second place in the Asian Isuzu Stylus/I-Mark Semi Wild class for his 1991 Isuzu Stylus XS.
For in-depth coverage of the event, check The IsuzuWeb at Carlisle, 2001.
Congratulations to IsuzuWeb Members for Carlisle 2000.
Congratulations to the members of the IsuzuWeb for their participation in the 2000 Carlisle Custom Compact Power Jam. The IsuzuWeb took more awards than any other Isuzu enthusiast club at the Custom Compact Power Jam, and impressive six of twelve possible awards.
Members Ron and Linda Annas were awarded second place in the Asian Stock All Years class for their son's 1989 Isuzu Impulse Turbo.
Member John E. Addison was awarded third place in the Asian Stock All Years class for his 1987 Isuzu Impulse RS.
Member Darren Ristich was awarded third place in the Asian Isuzu Impulse Storm Mild class for his 1992 Geo Storm.
Member Bill Luton was awarded first place in the Asian Isuzu Stylus/I-Mark class for his 1991 Isuzu Stylus XS.
Member Anthony Washington was awarded second place in the Asian Isuzu Stylus/I-Mark class for his Isuzu I-Mark.
Member Scott Aguilar was awarded first place in the Other Exotic All class for his 1991 Lotus Elan M100 SE.
For in-depth coverage of the event, check The IsuzuWeb at Carlisle, 2000.
Congratulations to IsuzuWeb Members for NOPI 1999.
Congratulations to the members of the IsuzuWeb for their participation in the 1999 NOPI MOtorsports Supershow.
Member Harold Walker was awarded third place for the Isuzu/Geo Conservative class and member Bill Luton was awarded third place in the Isuzu/Geo Mild Impulse/Storm class.
IsuzuWeb member Wendel Person was awarded second place for the Isuzu/Geo Mild class.
Well done.
For in-depth coverage of the event, check The IsuzuWeb at NOPI, 1999.
Congratulations to IsuzuWeb Members for Carlisle 1999.
Congratulations to the members of the IsuzuWeb for their participation in the 1999 Carlisle Custom Compact Power Jam.
Member Roby Kuniyoshi was awarded third place in the Isuzu/Geo Mild Non-Impulse/Storm class and member Bill Luton was awarded third place in the Isuzu/Geo Mild Impulse/Storm class.
In addition, the IsuzuWeb was awarded third place for club participation.
Well done.
For in-depth coverage of the event, check The IsuzuWeb at Carlisle, 1999.

Isuzuperformance Frequently Asked Questions.
We have compiled some of the most common questions we answer into a frequently asked questions page in order to provide more information to our customers.

Isuzuperformance Sponsorship Program.
We have established a sponsorship program to support our customers in their racing and show efforts.

Isuzuperformance Dyno Testing.
In our ongoing effort to bring you the best performing products, we are conducting DynoJet Dynamometer testing of many of our products and allowing their performance to speak for itself.

New Products

Isuzuperformance Heavy Duty 4XE1 Connecting Rod Bolts.
Isuzuperformance Stainless Steel Brake Line Sets and OEM Reproduction Brake Hose Sets.
Standardized Wiseco Racing Pistons.
Pauter Machine Connecting Rods.
Isuzuperformance Polished Stainless Steel Intake and Exhaust Valves
Isuzuperformance Upgrade Intercoolers.
Isuzuperformance Logo Floor Mats.
Isuzuperformance Lower Intercooler Pipe for Lotus Elan.
Stan's Headers brand Turbo Down Pipes for 1987-89 Isuzu I-Mark Turbo and Chevrolet/Geo Spectrum Turbo.
Isuzuperformance Aluminum Ignition Wire Covers and Oil Fill Caps.
Ross Racing Pistons for 1989-91 1.6 liter DOHC engines.
Wiseco Pistons for 1989-91 1.6 liter DOHC engines.
Kryptonite Crankshafts for 1989-93 1.6 and 1.8 liter engines.
Isuzuperformance coilovers for 1990-93 cars.
Isuzuperformance aluminum oil fill caps.
Isuzuperformance seat belt pads.
Cryocon cryogenic brake rotor treatment for brake disks.
Fidanza Flywheels for all Isuzu cars.
R&D brand Heavy Duty Valve Springs for High Lift Cams and High Boost Turbos.
R&D brand Stainless Steel Valves and Titanium Bucket Lifters.
Isuzuperformance Sponsorship Program.