Hey, i'm just wondering about the shattered gear boxes due to constant abuse on the 2002 wrx. Can anybody give me a detailed explanation on how it happens, i'm running stage 2 right at 17 pounds of boost. will that effect it? also, would a high performance clutch have anything to do with shattered gear boxes?
It all matters on how you drive. You can kill a gear box with a stock motor. The problem is in the gear set. If you launch hard at 4K rpms I would not put allot of faith into your transmission. Or if you power shift. Abuse kills them more then power IMO.
i'm a subie newbie, how do you power shift again?? is it something like brake boosting?? would brake boosting be considered as abuse to the gearbox?
wtf man drive ur car, becareful with it and learn to post one thread only http://www.mnsubaru.com/forums/showthread.php?t=25665 close one btw, if you're scare of busting it, dont drive it
"High Performance Clutch" can destroy a stock tranny if you launch hard. Just like a regular clutch, but more efficiently.
power shifting? Na, not a good idea, especially for a newb. not saying you're a newb, just newbs in general. power shifting- (done when accelerating) keeping on the throttle as you shift. Most people let up on the gas as they shift gears. In power shifting you will continue to apply the throttle so when you have pushed it into the next gear and let the clutch out your car will load the transmission and you should still be in your power band. result- more power immediately when you landed in the next gear. they key is to apply enough gas to keep the RPMs high, but not hitting redline...and shift quickly hope i explained that correctly
I would be careful!! 02 trannys are weak, for sure.. I went Andrewtech. Replacing a stock tranny $3,500, going Built with Andrewtech about $4,600. thought about that for oohh, 1 sec..:roll:
Post transfer--- From Taras i had an yearly 02 with stage 2 and the engine and tranny where perfect on it. The 02-03 gears are not as strong as 04-05. However if you dont abuse( drop the clutch at 5k and power shift) you will be fine for a long time. cant say for the turbo, but if the turbo blows up you will be able to tell. Just my .02 It's not related to just the 02's. It's pretty simple. Abuse the transmission, you run a higher risk of failure. Run higher power levels and abuse the transmission, you run a higher risk of failure. It's just like anything else mechanical. Turbo replacement isn't anything that any of us can predict. My Stage 2 car had around 115-120k on the stock turbo (app 20-30k at Stage 2) when the turbo went. Some last longer, some don't last that long. From Brian Shorten A quick search on Nasioc will get you a lot of stories, most of which start with "I was just driving my grandmother to the store when the transmission suddenly exploded" and usually end up with the truth coming out shortly afterwards.
I think I'm losing sight of your real question. Let me say it again. 2002 stage 2 wrx transmissions have bene proven to hold 17+psi for thousands of miles by thousands of owners across the world. How YOU care for the transmission will directly effect how long that thing lasts. focus on smooth shifts, make sure your clutch is in order, and frequently check/change your fluids. then you should be just fine
Some have busted the tranny on the stock tune, bad driving Some have their tranny running good with a different tune, higher hp/tq, better/good driving.
Ive got an 03, 18g turbo. Exedy hyper single stage 3 clutch. and my tranny is as good as it was since day 1 from what I can tell. No excessive wear. It also helps if you change your tranny fluid at closer intervals if you are running the car hard. Its not a honda so dont drop the clutch like in a honda. Hondas have no torque, therefore their trannys hold up.
thanks everyone, i'll be more careful with drop clutching and launching at 4000 rpms, my newbie mistake, i think i smoked the clutch 4 times now, rev it up at first gear, i mess up the launch, like i didn't clutch in properly, you get the funny metal smell or like something is burningl. any info on that? when I drive normally and casually, i clutch in and release the gas paddle and wait for the rpms to drop all the way down then shift up the gears, then lightly clutch out. I seriously have to admit, that power shifting sounds very tempting to try out. I might try it out after sticking in some uncle scottys tranny mixture.
I'll put it real simple for you. Uncle Scottys Mixture is not going to strengthen your transmission. At all.
Might as well just start saving for a new tranny now. Turbo XS was up to about 475whp when they blew up 4th gear on the dyno, and this was on a stock 5 speed box (back before the US had the STI), so it can be done. I have tuned stage 2 cars that have ripped the trannys out of them 2 weeks after the tune, and I have tuned a car with a dogbox that blew up about a month after the tune. The dog box was HARD launches and 4 wheel smoke shows, but even a dogbox can only take that kind of abuse so long before destroying itself. Russ
