GURU Racing has produced a 4140 Chrome Moly lightweight flywheel to suit 5.5" clutch assemblies,

Lightweight flywheels increase throttle response and aide in overall vehicle performance.

Weight:

Standard (Turbo II) Guru 4140 Flywheel
Clutch Assembly & Complete flywheel 44 lbs 16 lbs
Flywheel 27 lbs 10.1 lbs

So not only providing a performance improvement product but adding a substantial safety factor with approximately 25% less inertia than a 7.25" clutch for improved acceleration.

Applications based on generation 2 & 3 (Series I-VI) turbo RX7's and are a direct bolt in without modification. The kit comes with thrust bearing and housing as well as gearbox thrust bearing support.

Technical Specifications:

Flywheel:

Flywheel currently delivered for the RX7 Turbo case transmissions
RX7 Generation 1-3 (Series I-VI)
Direct fitment within bell-housing with no modifications necessary
No ring gear as teeth directly cut onto flywheel
Flywheel heat treated and black oxidised
Clutch:

Suit AP, Tilton and Quarter Master (QM) 5.5" clutch assemblies
Delivered with custom thrust bearings & mount as well as gearbox thrust bearing slider nose
Material:

All component are precision manufactured
4140 Chrome Moly
Heat treated and black oxidised

CLUTCH NOT INCLUDED