MODIFICATION

MUFFLER AND AIR FILTER

Sports Muffler and Filter Consists of a genuine sports-type air filter and sports muffler. This pair works well with turbo engines. Ifs great for beginners new to turbo tuning. In normally aspirated engines, torque at low RPM may become a bit weak, but torque output will be improved at high RPM. Semi-Racing Muffler and flir Filter Combination of a competition air cleaner with polyurethane sponge filter and high performance muffler with low friction exhaust that works most efficiently at high RPM. This is best suited for high-output turbo engines- For use in normally aspirat- ed engines, the engine will require appro- priate tuning to accommodate this muffler and air filter combination. Racing Muffler and flir Filter This air filter is designed specifically for racing with an air runnel featuring a higher intake efficiency than the semi-racing air filter. The straight muffler is designed for race cars running at high RPM. This is best suited for engines tuned for peak perfor- mance. Torque will drop off considerably at low RPM, so this set must be used with the engine specifications and gear ratio carefully considered. BRAKE

Sports Brake Pad Carbon metallic brake pads provide stable stopping power even during extended racing. Initial stopping power and non- fade characteristics are much better than those of normal brake pads. These brake pads can be used for endurance racing. Brake Balance Controller This special part controls the anti-lock braking system, and can be used to adjust the balance of the braking power distrib- uted between the front and rear brakes. By strengthening the front brakes. This part gives the car a tendency to under- steer. By strengthening the rear brakes. this part results in a tendency to oversteer. If the rear brakes are strengthened too much. the car will tend to spin out easily. COMPUTER ROM Tuning By providing elementary tuning, ROM tuning allows you to revise the program of the engine management system, adjusting such components as the engine ignition timing and Air-co-fuel mixture ratio to achieve greater power. After replacement of the air filter and muffler. this computer can help beginners com- plete a basic tuning of turbo-engine cars. (y- -U-

 TUNING NORMALLY fiSPIRfiTED ENGINES (Nfi TUNING)

Normally flspirated Engine Tuning I Adjustment of the ignition timing and valve timing, and increase of the compres- sion ratio by thinning of the gaskets results in increased power for normally aspirated engines. The exhaust manifold muse be replaced to accommodate these adjust- ments. This will increase high-end power while maintaining low-end torque. Normally flspirated Engine Tuning II Higher compression ratios are obtained with high compression pistons and reformed head surfaces. Other changes include a new camshaft and strengthened valve springs, resulting in even higher output than in stage I tuning. Although tow-end torque will decrease a bit, the increase in high-end power will be signifi-  cant. The engine management computer must be reset to accommodate these new specifications. Normally Aspirated Engine Tuning III In addition to the adjustments of stage II tuning, the weight of the valve system is reduced significantly- The pistons, cam. valves, connection rod, and springs are replaced with higher quality material designed for high RPM. The cam is designed specifically for racing with high lift and valve overlap characteristics. The compression ratio is increased to its absolute limit- Because this tuning is geared for maximum power, the character- istics of the power band are optimized only for mid to high RPM. Port Polishing The inner surface of the intake port is finely ground down to reduce air flow resistance and increase engine response. Although the power increase will be relatively small, this is considered a necessary adjustment for a normally aspirated engine. Increasing Displacement The cylinder bore diameter is widened and the crankshaft and connecting rod are adjusted to increase the stroke displace- ment, resulting in increased exhaust volume. This will lead to greater torque at all RPMs.  Engine Balancing Engine  friction is reduced by balancing the pistons and connecting rod and using a high- recision, fully-balanced crankshaft, resulting in higher revving and increased power. The RPM limiter is reset. GEAR BOX Close Ratio Transmission The gear ratios from 1st gear to 5th gear are very close together. This replaces a normal transmission and its assembly. Rounding various types of corners while still maintaining a broad power band becomes possible with this transmission. It is particularly recommended for normally aspirated engines. (y- -4S- Super Close Ratio Transmission The gear ratios here are even closer than in the close ratio transmission. This modifi- cation is best suited for cars customized with a very narrow power band. Be aware that this transmission wiil demand con- stant shirting up and down. For engines with powerful torque characteristics, this type of transmission may not be ideal when considering the power loss that occurs when shirting up. Racing Support This service replaces all of the current gears with racing-designed gears, includ- ing the final gear. Gear ratios can be adjusted precisely for specific cars and race courses. CLOTCH High-Capacity Single- late Clutch With this clutch, shifting gears will feel different than with a normal clutch, When shifting up, there will be a much more direct feel to the gear change. Twin-Plate Clutch Featuring twin plates, this dutch kit is designed for high-torque high-power cars built for racing. Slippage during up shifting is reduced, resulting in better acceleration. Triple-Plate Clutch With three clutch plates, this clutch kit features better torque transmission and an even more direct feel during gear changes. It is best suited for the highest- performance engines. FLYWHEEL Sports-Type Lightweight Flywheel This flywheel is constructed from chrome molybdenum for light weight. As a result, the engine will run easier and acceleration will also improve slightly. Beware that engines with weak torque characteristics may stall going up inclines. Semi-Racing Flywheel This flywheel is even lighter than the sport-type flywheel. The engine will run even easier, and acceleration will improve slightly. Beware that engines with weak torque characteristics may stall going up inclines. Racing Flywheel This is an ultra- ightweight flywheel designed specifically for racing. Engine response and RPM falloff both become very pronounced. Beware that engines with weak torque characteristics may stall going up inclines. DRIVE SMflFT Carbon Drive Shaft This is a lightweight drive shaft made from carbon composite materials. Because the drive shaft is situated between the differ- ential gears and engine, it has about as much influence on car acceleration as the flywheel. This carbon drive shaft will improve acceleration characteristics. ^y 4i- INTERCOOLER Sports Intel-cooler This air-cooled intercooler reduces the temperature or intake air compressed by the turbo charger- Even with the same turbo booster pressure, by reducing the intake air temperature, the power output will increase proportionally with the reduction in volume or the cooled air. This is a required modification for turbo engines. Racing High-Capacity Intercoohrr This part lowers the temperature of the intake air in the turbo booster, thus increasing power. As the capacity of the intercooler increases, the ability to reduce the intake air temperature also increases. but in turn the engine response time becomes slower. This high- apacity racing intercooler is best suited for engines with high maximum booster pressure. TURBO KIT Turbine Kit I This turbine kit uses a high-flow compact turbine that will increase high-end power without sacrificing torque at iow to mid RPM. Turbo lag is minimal, making this a well-balanced modification suitable for all race courses. This kit includes metal gaskets, oil cooler, heavy duty oil pump, and other high-endurance parts. Turbine Kit II This turbine kit combines peak power at high RPM while delivering balanced per- formance at tow to mid RPM- Compared to turbine kit I, low-end torque will be a bit weaker, but from mid to high RPM the power output will be substantial. In addi- tion to high- ndurance parts such as metal gaskets, oil cooler, and heavy duty oil pump. this kit includes a fuel pump, injector, and computer. Turbine Kit III This turbine kit focuses on peak power delivery for 0 to 400 meter acceleration. Compared to turbine kit II, the power band shirts up toward high RPM. This turbine kit is best paired with a close ratio transmission. To get the most out of this turbine, the camshaft is also replaced. In addition to high-endurance parts such as metal gaskets, oil cooler, and heavy duty oil pump, this kit also includes a fuel pump, injector, and computer. Turbine Kit IV This is a large-size turbine kit designed specifically for maximum horsepower out- put at high RPM, It is particularly suited for races tike the Maximum Speed Challenge. To get the most out of this turbine, the camshaft is also replaced. In addition to high-endurance parts such as metal gas- kets, oil cooler, and heavy duty oil pump, this kit also includes a fuel pump. injector, and computer. (st 47- SUSPENSION Sports Suspension Kit Easy to handle even for beginners, this suspension kit can be used anywhere from the street to the race circuit. The front and rear shock absorbers can be adjusted to three different settings. The camber angle can also be adjusted. This kit features multi-chamber low-pressure gas shock absorbers, with three adjustable settings. Semi-Racing Suspension Kit This highly adjustable suspension kit is recommended for intermediate drivers. Compared to the normal setting on the sports suspension, this kit features much harder settings for the spring rate and shock damping. Car height in both front and rear can be adjusted to millimeter units. The damping adjustment has five settings. The camber angle is also adjustable. This kit uses a single-chamber high-pressure gas shock absorber.

Racing Support Not only can the car height and damping setting be adjusted, but the spring rate can also be adjusted to any desired speci- fication, making this service strictly suited for racing. All aspects of the suspension can be adjusted. STABILIZERS StreeHJse heavy-Duty Stabilizers (Sort) This stabilizer is designed to reduce roll (lateral shaking) of the car. Roll can be controlled independent of the car's pitch- ing characteristics. Used effectively, this stabilizer can reduce lateral weight transfer without reducing weight transfer in the straight- ine direction. Stabilizer bars are available separately for front and rear. Racing Stabtlizers (Medium) This stabilizer is comprised of a torsion bar spring to reduce car roll. Normally as the spring rate is increased to harden the suspension, not only will the lateral roll decrease but so will the straight-line pitch characteristics, making weight transfer difficult during braking. This stabilizer will reduce only the lateral roll. The setting here is harder than the soft stabilizer described above. Racing Stabilizers (Hard) This is the stiffest stabilizer bar of the bunch. However, increasing the stiffness of the suspension does not necessarily equate to faster driving. Pick something that feels right to match your style of driving. <y 41- TIRES This four-tire set consists of high traction, soft rubber compound tires for both front and rear. The soft rubber compound pro- vides good grip, but wears easily. This is best suited for sprint races. Hard/Hard This four-tire set consists of hard rubber compound tires for both front and rear. The traction here is not as good as soft rubber compound, but the tires are more durable, making them suitable for endurance racing. Hard/Son This set consists of hard rubber compound tires in the front and soft in the rear. Because traction is better in the rear, the car will naturally have a greater tendency to understeer. This is a good choice for high-power rear-wheel drive cars that have a tendency to oversteer. Soft/Hard This set consists of soft rubber compound tires in the front and hard in the rear. Because the traction is better in the front, the car will naturally have a greater tendency to oversteer. This is a good choice for front-wheel drive cars that have a natural tendency to understeer. RfCIMG MODIFICATIONS Weight Reduction Reduce the weight of your car by remov- ing unnecessary parts and substituting parts made of lighter materials. Reducing car weight has many advantages such as improving acceleration, cornering ability, and brake performance, as well as increasing tire life. Racing Modification You can completely modify your car to racing specifications by customizing the car shape and using different part materials- This includes modifications impossible to achieve with ordinary modifications, including large weight reduction, change in tread depth, and fender modification to accommodate large-diameter tires. This does not include any modifications to the car engine.