Ok so i did a search to see what i can find out. Found a couple things however not everything. So ill give u the story. I have a SS/SC. Recently got 2.8/60lb and tune done...however with the extra power i noticed that my 1st gear is messed up. I'm not a mechanic and i can only do basic stuff on my car so i dont know what is what. So anyways when i take off in 1st gear it accels ok...could be faster but then at approx 3750rpm it shoots right up...rpm's just fly right up....kinda seems like it has a turbo and it just lagged. Which is f*cked up cuz its a SC. So i told my mechanic about it and he said possibly the clutch is slipping and you might need a new one. Do you guys agree with that? And if so what clutch do you recommend. Mods are in my sig and the only thing left to do for power is Header/DP and Exhaust. So what clutch would be good for my power level? I keep hearing bad things about the Spec clutchs so thats why im writing this. Thanks for the input

 

exedy hypersingle. but make sure its your clutch before getting one. for some reason i have a feeling thats not the problem

 

Are you spinning tires or clutch?

 

lol...since im driving with winters in -20*C weather my tires spin through 1st and 2nd. But the tires spin when my rpm's go up but its not what is causing it to do that tho. the power shoots up and causes the tires to spin, not the other way around. At first i thought it had something to do with the supercharger because it didnt seem like there was much boost (despite what the gauge says) from 1000-3750rpm and then 3750 - whenever i shift its alot of power. But i talked to my mechanic and he told me it might be the clutch. I have a annual inspection at the dealership tomorrow so ill find out if i need a new clutch

 

cruise in 2nd around 2800 rpm and then throw it into 5th if its smooth its your clutch slipping if it starts to jerk then your good to go

 

Do 30 mph and put it in 5th. Floor it. You'll know if it starts to slip.

 

Its your clutch, it cant hold the extra power. Mine used to roast the tires before the clutch, but now that i have new tires, my stock clutch will give out exactly how yours does while WOT in first.

 

mine is terrible too

 

so if it is the clutch, which aftermarket clutch should i buy?

 

exedy or spec stage II expensive but worth it, check out the clutch slipage sticky under the drive train section may help you out

 

thanks...ill check and see what i can find. Was reading threats about the Spec and heard alot of people having issues with it and decided to go back to stock

 

yea exedy sounds the best to me personally and thmotorsports is selling a "exedy oem replacment kit" for $313 free shipping, i'd try the 3k theory first though

 

ill give it a try later tonight

 

lol im in the same boat so i'll be doing it too

 

to you guys that have a "slipping clutch" while going wot in first, are you SURE it's the clutch? because i can tell you that any ss/sc i've ever driven if you go wot in first you're just spinning like a ****.

 

Yea i did it twice...it went smooth, so im guessing thats bad? Thought i was going to stall going from 2nd to 5th...lol. And just to respond to D4u2s0t, its the clutch or possibly something else. Even when i dont go WOT...just 50%...it gets to 3750rpm and shoots right up and then the tires spin. It almost feels like turbo lag...you start off and then after so many rpm's the boost kicks in. I thought it might have been the supercharger ******* around but people are saying its the clutch. I'll find out 100% tomorrow tho.

 

If it comes down to you buying a clutch buy an exedy hypersingle.

 

50% can spin the wheels too. what youre explaining sounds like the car is hitting it's torque peak. which would explain the extra power, the spinning wheels, and make it seem like it's the clutch. if it was the clutch, it woudl do it in other gears too, not just first. and that's what makes me think it's probably the tires spinning.

 

i base it off 4th and 5th not 1st or 2nd, in higher gears sometimes it'll let go with even the slightest touch of the throttle

 

well then that's a different story.

in the cobalt, you have to make absolute sure that you're not hitting the gas till the clutch is engaged. in the 2.0's the clutch engages VERY high, maybe an inch-3 inches pushed down. i've seen many, many people push the clutch all the way down (which is not necesarily bad) and then start hitting the gas while the clutch is on the way up. this will glaze the clutch and over time cause it to start slipping badly, to the point of having to be replaced. also, if you're not, make sure you're properly rev-matching your downshifts. that's also a big culprit, people not rev matching properly, or not even rev matching period.

 

yea like i'll be going up a hill and try to speed up a little and it just lets go. i think my problem was shifting early and slipping it after gas went up i started shiftin before 3k and thats when it begain to slip

 

shifting low isn't the problem, the problem is like i said giving it gas before the clutch is engaged.

these clutches take some getting used to. I stopped giving advice because majority of people don't want to hear that they are not shifting properly, and just resort to name calling. but good god do I cringe when i watch people's driving videos

then, try and offer sincere advice and the response is usually something like "i know how to drive, i've been driving manual for xxxx years". this clutch sucks yo.

i've had people call me a ricer for blipping the throttle on downshifts. that was the end of that. if people really want advice i'll give as detailed explanations as necesary. not claiming i'm a driving expert, or that I drive perfectly, but when I make a mistake I know what I did wrong.

 

tires dont start spinning till a second or two after the rpm jump

 

are you fully off the clutch before you're on the throttle? just seems odd that it only does it in first. a clutch doesn't slip based on the gear you're in. it either slips, or doesn't. granted it may not slip at 30 mph in 4th gear because the torque isn't there. but if it's slipping it will slip anywhere in the power band, regardless of gear.

when driving normally, it's a good practice to be 100% off the clutch by 1,000 rpms.

 

A clutch is more likely to slip when you floor it in 5th gear then it is to slip in 1st gear acceleration. I bet you're breaking tires loose.