View Full Version : transmission question

06-07-2010, 12:56 PM
I have a 07 wrx. im just wondering how much hp will the stock 5 speed hold until i need to do a 6 speed swap..i was told if i start hitting around 350 its goin to start having issues. is this correct?

06-07-2010, 01:27 PM
At 350 you may start having clutch slip, but the gears should be OK IMHO.

06-07-2010, 01:38 PM
A big factor in the longevity of the tranny is your driving style/ talent. If you are easy on your tranny and know how to use a manual gearbox properly your tranny will last a long time even at 350+ hp level.

06-07-2010, 02:26 PM
ok thanks...would it be recommended to put a beefer clutch in to prevent clutch slip?

06-07-2010, 11:00 PM
couldnt hurt

06-12-2010, 02:30 PM
I have a Exedy stage 1 organic disc clutch and it holds my 274hp and 313tq at the wheels fine.

06-13-2010, 09:44 PM
i have the same type of exedy clutch...mine slips from time to time, especially when i launch hard

06-14-2010, 07:47 AM
Torque and driving habits kill transmissions. If you are worried about grenading your transmission, upgrading your clutch is not a good idea. When that thing grabs where do you think all the driveline shock goes?

A little slip is better than busted gears, IMO.