The clutch is not the answer.

What you should ask yourself is how you plan to launch and treat the tranny. For example any type of drag racing or heavy clutch and rev work would need more serious attention to details.

From what i've read here the main problem with the wrx tranny is the case flex. I had it explained to me the flex in the case tends to actually strip and shatter the gears on the pressure exerted.

If you want you can sorta help the flex by getting tougher gears which will survive the abuse longer but not forever and by no means on a very powerfull engine. It seems people start having real big issues at the 300hp mark with breaking gears.

The overall best solution is to get a sti 6mt tranny which is by far a better transmission. With your car being a wrx i'm also told you need a different rear differetial ratio.

Hope that was helpfull

 

But that is granny driving. If you want to have a good run 1/4 mile times, you need to bang the gears. If you feather it out, then you lose a lot of time. There is basically two options. 1) Buy the 6mt from the STI, but that will run you around $6000. 2) To buy RA gears. Its really up to you. If you drive it hard sometimes in a straight line and bang the gears sometimes, it shouldn't be problem. But if you decide to drag it all the time, you will probably have problems. Anyways, good luck and I hope this helps!

 

Yeah it's true that he didn't mention anything about racing. But if hes asking about how he can make the tranny stronger, then I would have to assume hes wanting to race it or at least driving it hard.

 

No problem. If you have the money, go with the STI tranny.

 

i may be an odd story but i beat the HELL out of my tranny (fast shifts, launch hard ALL the time, ect) and i have been doing it for 80k miles and the tranny has surpassed my expectations. just as long as you dont DUMP the clutch (slipping it propperly is almost as fast anyway) you tranny will last and you can drive pretty damn hard. hard enough, dare i say, to beat a manual Mustang GT all day long. i say get used to slipping the clutch from aroung 4500 to 5000 rpms and ruin the clutch you have in it THEN buy a stock or slightly upgraded replacement and be done with it. if you are REALLY nervous you could look into the STi RA gearsets, there a cheap alternative to the weak gear problem and will help you 1/4 mi times because the gears are a little closer. people may not agree with me but its my 2 cents and ill spend it anyway i want to

 

^^^^

How much is the STi RA gearset with installation and everything?

 

i guess it depends. the gear set is like 1300ish from Gruppe-s and you need syncros to go with that so you talking like 1500 parts ans probobly 500 labor unless you know someone. dont quote me on that though.