boostedsubbygt Posted January 9, 2008 Share Posted January 9, 2008 whats the maximum whp/trq the stock tranny/axles can handle for daily driving? thanks Link to comment Share on other sites More sharing options...
AKLGT Posted January 9, 2008 Share Posted January 9, 2008 every car is different and also depends on AT/MT. Wiggle wiggle wiggle wiggle wiggle yeah!!! Link to comment Share on other sites More sharing options...
Boostjunkie Posted January 9, 2008 Share Posted January 9, 2008 As AKLGT mentioned, is the car a 5MT or a 5EAT? Whether the tranny lasts depends ALOT on how you drive it. If you want to rev it redline and sidestep the clutch or brake torque an automatic at ever stoplight neither tranny will last even with stock power. Sensibly driven, IMHO the 5MT is capable of holding up to about 400wtq, maybe a bit more. The 5EAT is good for up to 400wtq at the most if the valve body is upgraded, a tranny cooler is added and good fluid is used. Both are be run with more power without instantly imploding, but don't expect it to last forever. As for the clutch on the 5MT that is very open to debate. My clutch had over 50% life left at 36K miles, with the vast majority of those miles modded at Stage 2 and about 5K miles with around 400wtq. My flywheel and pressure plate looked perfect. I replaced the clutch in SnoDork's car when it had over 70K miles on it and it too looked great. I've also changed clutches in other LGT's with 20K miles that were beat up. Moral of the story, it's all in the driver. Slip the clutch excessively or generally drive like an idiot and it won't last. Drive well and the stock clutch will hold quite a bit of power and last as well. Link to comment Share on other sites More sharing options...
boostedsubbygt Posted January 9, 2008 Author Share Posted January 9, 2008 this is on a manual 5 speed. i had wondered how much so i can tune safely without going overboard with power Link to comment Share on other sites More sharing options...
j255c Posted January 9, 2008 Share Posted January 9, 2008 I would say the transmission can hold as much as the engine can hold with stock internals. Which is debatable, but around 380wtq/whp+ is when the engine is very borderline and you have to monitor things closesly. If you're planning on putting out that much power be prepared to pay for both the block and the trans. 06 TB EVO IX SE stock turbo monster subaru hater Link to comment Share on other sites More sharing options...
Boostjunkie Posted January 9, 2008 Share Posted January 9, 2008 I would say the transmission can hold as much as the engine can hold with stock internals. Which is debatable, but around 380wtq/whp+ is when the engine is very borderline and you have to monitor things closesly. If you're planning on putting out that much power be prepared to pay for both the block and the trans. That is pretty much on point. For both the 5MT and the stock block, if you keep it around 375whp/375wtq you'll have most of the OEM longevity IF well tuned AND sensibly driven. Link to comment Share on other sites More sharing options...
JoeFromPA Posted January 10, 2008 Share Posted January 10, 2008 I love threads like this for people like me, who would be extremely happy with around 250 whp/tq. Really shows that this is a great car to do some simple modifications on (AP and exhaust for power) and have a fairly worry free life. Joe Link to comment Share on other sites More sharing options...
Beanboy Posted January 10, 2008 Share Posted January 10, 2008 Some transmission issues here and there on the board, nothnig consistent. I've read enough issues about our dual mass flywheel doing bad bad things over 300WHP that I'm going with a clutch kit, but that's more safe than sorry and not a given, ans boostjunkie mentioned above. -B http://www.standardshift.com Link to comment Share on other sites More sharing options...
CapeStylz Posted January 14, 2008 Share Posted January 14, 2008 That is pretty much on point. For both the 5MT and the stock block, if you keep it around 375whp/375wtq you'll have most of the OEM longevity IF well tuned AND sensibly driven. so whats the right upgrade combo for tranny with 400+? i know they make shift kits but how do you actually build up a tranny without replaceing it ?? sry if thats side tracking... Link to comment Share on other sites More sharing options...
what Posted January 16, 2008 Share Posted January 16, 2008 drive like an idiot and it won't last If you drive it like you stole it, it will break. Link to comment Share on other sites More sharing options...
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