Pro_built7

iTrader: (9)

hey guys, I'm having an issue with my m6 lt1. whenever im under full power and shift into 4th gear my car hits the rev limiter, I think it might be the clutch slipping, but why wouldn't it happen in 1st 2nd and 3rd ?, its almost as if im missing a gear but im not, b/c this has happened at least 5 times, every time in 4th gear.... i really dont want to keep hitting the rev limiter.

ArrestMeRedZ

iTrader: (2)

I'd bet clutch. If it's starting to slip, you'll notice it more in higher gears.

bricez28

yea go out and really get on it 1-3. itll slip. then its only a matter of time. 6th should slip too

Pro_built7

iTrader: (9)

but its weird, its not like a slipping its almost as if in 4th gear the clutch is non existent like missing a gear, i can get on it as hard as possible in 1-3 and it won't do it.. im pretty lost here.

Smokeshow_2006

iTrader: (3)

have you had the speed limiter tuned out?

Pro_built7

iTrader: (9)

Yes, the speed limiter is tuned out. I dont see how that would affect this though?

Purple95Z28

iTrader: (6)

Once it comes off the rev limiter does it THUD and slam you back into your seat suddenly, or does it kind of smoothly go back down in revs and start pulling again?

Pro_built7

iTrader: (9)

madZ set my rev limiter at 6500, it doesn't thud or go smoothly back down, its just like if you missed a gear and hit the rev limiter... its strange, could it be the trans ?

Smokeshow_2006

iTrader: (3)

I was just curious if you would confuse the speed limiter with the rev limiter. before mine was tuned out, it would always hit at the top of 3rd, Botton of 4th.
Perhaps you now have a bent shift fork, and In fact, are missing 4th?

Pro_built7

iTrader: (9)

but it does shift fine into 4th every other time, unless its under full load, and then it only happens sometimes.. ughh

Prototype007

iTrader: (2)

Sounds like some slippage

k0261886

iTrader: (5)

get into 6 gear out on the highway and floor it. If your clutch is slipping, it will slip there. Or maybe it is heating up on the 1-2 shift and 2-3 shift, so by the time you get to the 3-4, it's too hot to hold?