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T5 gearbox for circuit laps?


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Does anyone know of an adapter available for this conversion?

 

A six speed like the heavy TR6060 is not required, what would be ideal is a five speed with say a .85 fifth gear. Keeping the $ in mind, a T5 derivative or even a Z32 five speed should suit but how to fit and have the right clutch etc is the problem.

 

EDIT; the local advice is that a T5 won't handle say 400whp and that a TKO600 would be a better more durable choice.

Edited by 260DET
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There are two companies in the US that make upgrade kits for the T5.  The two companies (Astro Performance and G-Force) advertise 500+ hp capability for their products.  I know of several people running the G-Force in the American Iron racing series with success. 

 

I personally have an upgraded T5 from G-Force, but I only use my car for autocross.  I am making 400hp/ 400 ft-lbs of torque at the wheels.  Additionally, G-Force has a variety of gear choices and the choice of dog-ring or synchomesh.

Edited by 74_5.0L_Z
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