Joined: 16 Nov 2007
|Posted: Tue Nov 20, 2007 11:11 am Post subject: CT9A 2003 Evolution VIII
|Evolution VIII, takes a further step up the evolutionary ladder with the introduction of Super AYC, a 6-speed close ratio manual transmission and other cutting-edge automobile technology.
Evolution VIII’s more aggressive and hi-quality exterior incorporates the defining elements of the new MMC design identity. It also features significant advances in aerodynamic and cooling performance reaped from extensive testing during development on the Nürburgring in Germany and in MMC’s own advanced wind tunnel facility. Reducing drag and lift, Evolution VIII’s exterior lines give it better high-speed straight line stability and handling through corners than its predecessor. The design also achieves the increased cooling performance necessary to extract the full potential of the new model’s uprated power plant and drivetrain. The hot air extraction vents in the engine hood, meanwhile, are 60% larger than on Evolution VII and with an improved heat protector design double the effective area. The rear spoiler uses carbon fiber-reinforced plastic for both horizontal and vertical components – a world-first on a 4-door production sedan.
The powerplant now generates class-topping torque of 290lbs/ft at 3500rpm, the result of optimizing the turbocharging characteristics of the twin-scroll turbocharger to increase boost pressure to 40mm Hg around peak torque. Engine durability and reliability have also been improved by uprating the aluminum pistons and forged steel con rods. With a number of other ranges the engine is now 2.5kg lighter.
Standard on the GSR, Evolution VIII uses a 6-speed close ratio gearbox to maximally utilize the extra torque generated by the uprated engine.
AYC has come under criticism in some quarters for not transferring enough torque to match the increased power outputs of the latest Evolution models when shod with high-grip tires and driven on race circuit or other high-friction surfaces. Responding to this, MMC developed and now introduces Super AYC after carefully calculating torque transfer requirements under simulated race conditions. Switching from the use of a bevel gear to a planetary gear differential, the new unit is able to transfer twice the torque of the current AYC.
Start of Production: Jan 2003
Number Produced: 5000
Length [mm]: 4455
Height [mm]: 1450
Width [mm]: 1770
GSR Weight [kg]: 1380
RS Weight [kg]: 1300
Chassis Code: CT9A
Engine Size: 1998.6
Bore and stroke: 85.0 x 88.0
Compression Ratio: 8.8:1
Power [bhp]: 276, 300, 330
Torque [lb/ft]: 289, 300, 305
Injector Size [cc]: 560
0-60mph: 4.5 secs
0-100mph: 12.5 secs
Top Speed [mph]: 160
Fuel Consumption: 24
Fuel Tank capacity [GSR/RS]: 55/50 Litres
Transmission: 5 or 6 Speed manual
Active Yaw Control [AYC]: Yes
Active Center Dif [ACD]: Yes
Gear Ratio 1st [GSR/RS]: 2.909/2.785
Gear Ratio 2nd [GSR/RS]: 1.944/1.950
Gear Ratio 3rd [GSR/RS]: 1.434/1.444
Gear Ratio 4th [GSR/RS]: 1.100/1.096
Gear Ratio 5th [GSR/RS]: 0.868/0.825
Gear Ratio 6th [GSR/RS]: 0.693/NA
Gear Ratio Rev [GSR/RS]: 3.416/3.416
Gear Ratio Final [GSR/RS]: 4.583/4.583