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Price: $439.99
Isuzuperformance Racing Team PolyurethaneEngine MountBushing Set.
THIS SET IS SOFTER 65 DUROMETER FOR LESS VIBRATION AND STREET USE.
Designed specifically for the following vehicles:
- Isuzu I-Mark RS 1.6 liter DOHC
- Isuzu I-Mark 1.5 liter Turbo
- Isuzu I-Mark 1.5 liter Non-turbo
- Chevrolet Spectrum 1.5 liter Turbo
- Chevrolet Spectrum 1.5 liter Non-turbo
- Asuna Sunburst 1.5 liter Turbo
- Asuna Sunburst 1.5 liter Non-turbo
- Isuzu Gemini JT190 1.6 liter DOHC
- Isuzu Gemini JT150 Turbo
- Isuzu Gemini JT150 Non-turbo
This item fits vehicles with Manual AND Automatic Transmissions.
Can also be used with the 4XF1 1.8 Liter DOHC Engine fitted to the above vehicles using the 1.6 liter I-Mark RS or Gemini JT190 engine mount bushing brackets.
65 Durometer Street Bushings
Several of our drivers requested a softer engine mount bushing for use on their street driven vehicles. These bushings are 65 Durometer, instead of the 85 Durometer bushings we use on our race vehicles. The 65 Durometer material is a specially formulated resin that absorbs more vibration while still resisting the twisting movement of the engine. This provides for a greater reduction of engine vibration in the body of the vehicle, while still reducing the fore-aft movement of the engine and transmission assembly.
When pressing against the side of the 65 Durometer bushing with the thumb, it feels like it is offering the same resistance as the 85 Durometer bushing. But turnthe thumb and press against the 65 Durometer bushing withthe thumb nail, and the difference becomes much more apparent.
Description
Set of5 polyurethane bushings with stainless steel center sleeves. Replaces all5engine and transmission mountbushings of the vehicle. This set includes all engine mount bushings required for one vehicle.
Polyurethaneengine mountbushings drastically reduce the movement of the engine and transmission drivetrain assembly for better traction, putting more power to the ground, and better control of the vehicle. Polyurethane is stronger and more durable than the original rubber. Polyurethane is more resistant to oil, chemical, and heat than the original rubber.
Eliminates engine and transmission movement,wheel hop, and part throttle bucking, while putting more power to the ground.
This is the softer version of theengine mountbushing set used on the Isuzuperformance Racing Team cars in SCCA Club RacingSuper Touring UClass, all Redline Time Attack classes, SCCA Solo 2 Street Touring, Street Prepared, and Preparedclasses, KRS Battle Royal, and JAF Gymkhana Class C racing.
Made specifically to comply with SCCA Solo II Street Touring and Street Prepared class rules.
The less severe vibration characteristics of the 65 Durometer Polyurethane make this an excellent choice for dual use street drivenvehicles that are common to Street Prepared and Street Touring Class autocross.
This is arare and highly sought after item. New and never used.
AboutThis Product- Designed and made by Isuzuperformance in St. Louis, Missouri, USA.
- 65 durometer polyurethane cast to .001 inch tolerances.
- Stainless steel center sleeves turned to .001 inch tolerances.
- Includes5 bushings. Thesepieces individually are:
- One bushing and stainless steel center sleeve forRight Side Engine Mount orTimingBelt Side of Engine.
- One bushing and stainless steel center sleeve for Front LowerEngine Mount.
- One bushing and stainless steel center sleeve forRear UpperSmall End of Torque Rod.
- One bushing and stainless steel center sleeve forRear UpperLarge End of Torque Rod.
- One bushing and stainless steel center sleeve forRear Lower Engine Mount.
- These are not inserts. These are complete bushings with stainless steel center sleeves.
Product Benefits
- Eliminates movement of the engine and transmission drivetrain assembly.
- Transfers more power to the ground for improved performance, better acceleration, and more precise control of the vehicle.
- Eliminateswheel hop due to movement of the engine and transmission drivetrain assembly.
- Improves throttle response.
- Reduces throttle bucking caused by movement of the engine and transmission drivetrain assembly.
- Provides a significant improvement in clutch pedal control for smoother launch and better control of clutch engagement and feathering.
- 32.5% stiffer than the OEM bushings. 31% stiffer than the OEM bushings filled with urethane or silicone caulk.
- These are solid polyurethane bushings without the air spaces like the OEM rubber bushings.
- These bushings have been made with shoulders which fit tightly against the mounting bracket tabs attached to the car and lower cross member which further eliminates unwanted movement of the engine and transmission drivetrain assembly.The built in shoulders of these rigid polyurethane bushings are thicker, fit tighter, provide superior dampening of the rotational movement of the engine, and are many times more durable than the soft rubber OEM side pads.
Cautions Before Bidding
- This item was designed for use on racing vehicles on a race track. Increasedengine vibration is significant. Even with a stock enginewith a performance exhaust, the increase in engine vibration is significant.
- Every single loose item, component, body panel, etc., will immediately become obvious and annoying to anyone expecting silent andvibration freevehicle operation and ride.
- The steering wheel will shake 1/8 inch vertically when the car is sitting still and the engine is at idle speed.
- The ceiling mounted rear view mirror will become almost completely worthless for viewing out the back of the car.
- The roof panel and sunroof will rattle.
- The trunk lidor rear hatch will rattle and/or squeak.
- We use these bushings on our own street drivenvehicles and accept the increased vibration as a small cost for the performance improvement gained.
- Requires the use of OEMEngine Mount Brackets, this set includes bushings and center sleeves only. Does not include brackets. Donorengine mount bracketsmust be in good condition. It is highly recommended that the original bushings be removed by the use of a hydraulic press, as this method does the least damage to the brackets. Care must be taken not to damage, gouge, cut, or otherwise scar the inside surfaces of thebrackets that the bushings fit into, as any imperfection will cause damage to the polyurethane bushing.
- Be aware that new engine mounts are no longer available from Isuzu. If you have a set of OEM engine mounts in usable condition and ever desire to return the vehicle to quiet, sedate, non-vibrating use with the soft engine mounts, it is recommended that you obtain a spare set of engine mount brackets from a salvage yard and keep your good OEM brackets for future use.
- The Front Lower and Rear Lowerengine mount brackets are NOT ROUND. They were made from rolled sheet metal strips that have been bent into a cylindrical shape and welded together. These polyurethane bushings have been made slightly oversized and the brackets must be carefully measured and corrected to round by use of a sanding drum on an electric drill or die grinder. Careful and frequent measuring and test fitting must be done to perform this task correctly. The bushing by itself should be a snug fit without the center sleeve, and when the center sleeve is pressed in, it should go in smoothly and be a very tight fit.
- The OEMRear UpperTorque Rod is made from machined tubing and will not need to be trued with a sanding drum. These bushings are a direct press fit by hand (with the center sleeve again going in smoothly with a very tight fit).
- Grit blasting. priming,and painting of the brackets is recommended prior to reinstallation, but, if the bushings are tightly matched to the brackets, only a thin coat of paint should be applied to the inner surfaces of the bracket where the bushing fits. Make sure any paint is cured before installation.
- Bushings must be lubed before installation. Bushing lube is not included. We recommend Energy Suspension Formula 5 PN 911104 which can be ordered from most chain auto parts stores as well as Summit or Jegs.
- Superior and flawless performance.
- Durability approaching indestructibility.
- Compliance with the governing racing rules.
THIS ITEM IS NOT RETURNABLE.
IF YOU BUY THIS ITEM PLANNING TO INSTALL IT ONA LOTUS ELAN M100,WE SUGGEST THAT YOU GO OUT AND BUY A GEO SPECTRUM, ISUZU I-MARK, OR ISUZU GEMINI CAR TO INSTALL THESE ON, BECAUSE WE WILL NOT ACCEPT ANY RETURNS.
What Is Isuzuperformance?Isuzuperformance is thelargest company in North America designing, manufacturing, and offering performance parts, and the only company in North America offering racing parts,for Isuzu Impulse, Stylus, I-Mark, Gemini, Piazza, Geo Storm, Spectrum, Asuna Sunfire, and Lotus Elan. Isuzuperformance parts are the most sought after for these vehicles among enthusiasts and racers in the United States, Canada, Brazil, South Africa, Australia, England, Germany, and Japan, with a reputation for superior quality, fit and finish that is better than original equipment, and performance that is unparalleled.
What is the Isuzuperformance Racing Team?The Isuzuperformance Racing Team is a hand picked group of professional and semi-professional drivers in Japan and the United States, who compete in Isuzu made cars in road racing, gymkhana, autocross, rally, and drag racing. Members have distinguished themselves as top tier drivers in sanctioned competition under the Japanese Auto Federation, Sport Car Club of America, Japanese Classic Car Association, and National Auto Sport Association, as well as participation in the events of otherorganizations such as Redline Time Attack andKatoka Racing Service Battle Royal.
In exchange for review and feedback, Isuzuperformance provides services of design, engineering, and manufacturing of professional racing parts to Team members. These parts are designed without concern for cost, instead concentrating on three things:
These parts are not normally available to the public and are far beyond the budget of the casual car enthusiast or amateur racer. However, every once in a while, we have extras, and offer those at auction.
Sales Tax:Missouri buyers pay sales tax on the item cost. Please see Ebay format for current Missouri sales tax rate. There is no sales tax on any item delivered outside the state of Missouri.
Shipping CostsPolyurethane bushingsets are shipped by USPS Priority. Please refer to the eBay shipping cost calculator.
Ebay has removed the 0ptional insurance choice for buyers and placed the onus of delivery upon the seller. In order to comply with Ebay’s policy, we must insure every single package and add the cost of shipping insurance to the shipping and handling fee. This also limits the choices of shipping options to those which are insurable.
Polyurethane bushing sets are packaged in a USPS Flat Rate Box
Payment InformationPaypal only, immediate payment required.
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