Piston: Used the forged material from high specification
Connecting Rod: Used the forged material from high specification with H beam design for maximum strength and durability. WPC shot peening also contributes to strength as well as preventing metal fatigue.
* Stock rods can also be used
Crankshaft: Forged form high specification material and fully counterweighted for maximum balance at high rpm.
Best used with GTIII-RS (Target rpm is 8500rpm).
 
"STEP ZERO" is recommended for stock or GTIII-SS turbine as more power cannot be output at more than 8,000rpm, and STEP ZERO has the best response.
Since the power output range of GTIII-RS is shifted to higher rpm than GTIII-SS, in order to have wider power output range, "STEP1" that has maximum rpm of 8500rpm is recommended. If budget allows, "STEP2" is recommended for better response.
For a turbine which power band shifts to a high speed range like GTIII-4R, to secure a wide power band range, "STEP2" is recommended since the engine can run up to 9000rpm with STEP 2.
 
 
Target RPM
Target Turbine
STEP ZERO
8000rpm
Stcok/GTIII-SS
STEP1
8500rpm
GTIII-RS
STEP2
9000rpm
GTIII-RS/GTIII-4R