Hello,

i am rebuilding my engine right now (1993 RZ), and wonder what max. RPM the stock stationary gears are capable of.
The stock 13bt (for example S5) shouldn't be pushed over 8000rpm.. on fd3s.net i have read an article that the 13b-REW stationarys are factory hardened and also have a 3-window bearing with a deeper oil-groove for lubricating the ecc.shaft.

The price difference between 13b-rew and 13bt stationarys is phenomenal
(13bt around 140$, 13b-rew over 350$).

Can anybody tell me how much torque and max. RPM the REW-stationarys can hold?
I am not after 1/4mile races, the engine should withstand a bunch of laps at the nurburgring, so it will be stressed often for 1 or 2 hours at max. output

here some facts:
13psi of boost on twins (seq.)
wild streetport
apexi power fc (programmed for over 8000rpm for track-use).

well.. just tell me what you know.