Rotary Car Club - View Single Post - Accepted power/torque limit for S5 TII-tranny?

RICE RACING · 03-12-2012, 11:32 PM

My current demo car RICESP uses a stock port motor for much much more mid range power (read torque for homo's) and it runs 35psi boost! on a bigger turbo than I ran in the FB! The power is around 650bhp or more! and the tq is over 65kg/m My clutch is rated to 67kg/m lol and sometimes it will slip if not warmed up correctly.

So it takes and has been taking about 650Nm through the box and I do hundreds! of 90-140kmh tests!!!! I mean hundreds!!!! with full traction, car will do this in near 2 seconds flat with a vehicle weight of 1320kg as tested on sticky GG rated Toyo R888's of 275 width

These boxes can take allot. So in third with a street ported motor, higher tq at higher rpm you could easily see 700bhp in 3rd gear without breaking the tranny, then in 4th gear you can wind the boost to as much as you like as its direct drive + the fact the shaft is turning faster so it can take even more power!!!

In 4th gear you could easily feed 1000+bhp into the gearbox and not break it, and this has been done many times on dyno cars btw

03-12-2012, 11:32 PM	#4
RICE RACING Don Mega Join Date: Dec 2008 Location: Utopia Posts: 1,688 Rep Power: 18	My current demo car RICESP uses a stock port motor for much much more mid range power (read torque for homo's) and it runs 35psi boost! on a bigger turbo than I ran in the FB! The power is around 650bhp or more! and the tq is over 65kg/m My clutch is rated to 67kg/m lol and sometimes it will slip if not warmed up correctly. So it takes and has been taking about 650Nm through the box and I do hundreds! of 90-140kmh tests!!!! I mean hundreds!!!! with full traction, car will do this in near 2 seconds flat with a vehicle weight of 1320kg as tested on sticky GG rated Toyo R888's of 275 width These boxes can take allot. So in third with a street ported motor, higher tq at higher rpm you could easily see 700bhp in 3rd gear without breaking the tranny, then in 4th gear you can wind the boost to as much as you like as its direct drive + the fact the shaft is turning faster so it can take even more power!!! In 4th gear you could easily feed 1000+bhp into the gearbox and not break it, and this has been done many times on dyno cars btw __________________ www.riceracing.com.au Worlds best Apex Seals Coil on Plug Water Injection ECU Calibration Last edited by RICE RACING; 03-13-2012 at 12:05 AM.