I have about 3k miles if that on my ACT clutch (typical street setup). Yes the thing grabs like a monkeys fist if im shifting hard, but 90% of the time I'm doing normal street and highway driving. I haven't used it for autocross and don't street race at all anymore. The instances that I am experiencing are shifts into third-fourth-and espcially 5th gear at low rpms that seems to shudder at the moment of engagement resulting in a split second of hesitation. The rpm's don't rilly jump to insinuate actually slippage, but its sort of like a haulting on the acceleration right when the clutch engages. and its only at low rpms. The main question is does anyone else have this problem, and are there any other malfunctions that can sort of seem like clutch slipping but are engine/tranny related? I also have noticed a little bit of low end torque loss and don't know if that is related. I have hybrid intake, y pipe, 2.5" catback exhaust. Thanks

 

my car hesitates at 2000 - 3000 rpms.. or there about.. i never really thought it woudl be the clutch.. because if i gun it from 2000 aleady in gear.. it does it too.. so i dunno..

 

thats exactly what i'm talking about. It will also do this when its already engaged and I'm accelerating from a low gear. 1st and 2nd rise above the 2-3k rpm mark to quickly to notice hesitation, but it is there with third gear and above. At least you have the same symptoms. Anybody know? By the way sprint, do you also have the ACT street setup?

 

yes he does use the ACT street clutch and i too am planning on buying it soon. I don't really understand what you are trying to describe though? it worries me... I thought the act clutch was the best choice.

 

Hmm, I have the ACT and I don't have that problem... one thing I can think of, maybe because the ACT grabs so much better, you are noticing it more, rather than the slipping of the stock clutch?

 

yeah i got an ACT clutch.. it wasn't really affecting anything so i just ingore it.. i never thought clutch though..

 

if not the clutch is there anything else you think it could be? I would like to hope it's not the clutch because I do like it very much, but this only started happening recently.

 

mine does the same thing.


Trevor

 

ok just bought mine... haven't installed it yet... did everyone do this themselves or did professionals do it for ya?

kinda curious why it does this too...

mike

 

It sounds to me like the clutch jsut grabs really hard at initial engagement and gives a slight deceleration feeling. The stock clutch is a lot softer and the deceleration isn't as noticeable because it doesn't hit as hard.


My Max does this too and I don't have an ACT clutch. I think this is the downside of running an aftermarket intake with no resonators. The initial intake charge is a bit turbulent and probably gives the MAF a "fit" for a split second. It's not as dramatic in 1st and usually 2nd because the gears wind up pretty quickly.



Dave

 

Interesting point, makes a lot of sense. Are you a mechanical engineer by any chance dave? Now that I'm in school for Mechanical Engineering and am interning at one of GM's performance companies, you seem to present knowledge like the engineers here. Just wondering.

Anyone else have suggestions?