Slipping Clutch? Or Wheelspin?

[Rolls]

Is a clutch most likely to slip at peak torque in lower gears list 1st and 2nd? Or in higher gears like 3rd and 4th? I always would have said the higher gears as there is far greater load, however my car feels VERY much like the clutch is slipping in 1st and 2nd, car takes off but it feels too smooth, as if the acceleration is trailing the revs. There is no smoke, tyre noise or black marks I can see but the tyres are fairly worn and don't always make noise.

It won't do it in 3rd and it will still slide 2nd very easily and make lots of noise then, the diff is starting to open up a lot so would you guys say this is more likely just a combination of single pegging wheelspin or a slipping clutch?

[eightsixboy]

Best way to check ur clutch is to drive up a hill at around 60 in 4th or 5th and plant your foot, or take of from a stand still in 3rd or 4th with a little clutch dump, sounds a little harsh but it works, dont dump it at like 7k just at around 3k, you'll no straight away if your clutch is rooted.

It could be singling, my hr31 did that, when planting it in second i could single in a straight line with little smoke.

[Rolls]

It only seems to be on peak torque, when reving to redline it doesn't do it. Might try dropping it in 3rd at 40 to get it on boost and see what happens.

I'm starting to think it is the diff opening up really badly as when it does start to kick it always kicks left now. Oh well was due for a replacement 1.5 way, the stocker sucks compared to what I've had in the past.

[GTSBoy]

Definitely go with the idea of the VLSD getting more shit. Mine is the same.

[R31 POWER]

I just went through all this thinking the same. Mine open wheels some time as well. It was the clutch after all, and after the exedy button put in it's fine. The old clutch had meat still on the pucks but couldn't hold the power.

[Rolls]

Dropped 3rd at 4k doing like 30-40kph for fun, lots of tyre noise and it went sideways, gonna say it is the tyres/diff.

[R31 POWER]

Sometimes i could drop 1st and 2nd, sometimes not. Id give it a week to sort it self and it would be ok for a few days. If i beat up on it to long it would slip. It went like this for 3 months

[Rolls]

I'll take it up the freeway sometime soon and flatten 5th at 2k all the way until past peak torque, if it doesn't slip then I know it is not clutch.

[Beer Baron]

yeah clutch will always slip in higher gears under high load first. so as you said load it up from low rpm in 4th/5th and you'll quickly find out. even better if you can do it up an incline...

[Rolls]

dunno what happened but today the tyres are noisy as f**k now, definitely wheelspin, must have looked like a dickhead driving to work Lol

wooooo new tyres o clock, still got 60% tread and are federal 595SS evos so not exactly bad tyres either, were great when new, oh well.

Edited August 26, 2011 by Rolls

[R33 Eddy]

dunno what happened but today the tyres are noisy as f**k now, definitely wheelspin, must have looked like a dickhead driving to work Lol

wooooo new tyres o clock, still got 60% tread and are federal 595SS evos so not exactly bad tyres either, were great when new, oh well.

I glad i found this been thinking my clutch is f*ked or diff is f*ked as something feels like its slipping but get no smoke.. i also have the same tyres with maybe 80% tread...

dropping 2nd grabs and it will also compression lock both wheels so i was a little confused that it could be the clutch..

might try shimming the dift first before changing tyres.

[ARTZ]

Is a clutch most likely to slip at peak torque in lower gears list 1st and 2nd? Or in higher gears like 3rd and 4th? I always would have said the higher gears as there is far greater load, however my car feels VERY much like the clutch is slipping in 1st and 2nd, car takes off but it feels too smooth, as if the acceleration is trailing the revs. There is no smoke, tyre noise or black marks I can see but the tyres are fairly worn and don't always make noise.

It won't do it in 3rd and it will still slide 2nd very easily and make lots of noise then, the diff is starting to open up a lot so would you guys say this is more likely just a combination of single pegging wheelspin or a slipping clutch?

yeah mine does same Rolls and i know its not clutch cause clutch isnt too old..

I know exactly what you mean too cause with a lot of older cars you can feel it when they break traction, but the skyline just sort of seamlessly goes from grip to slip to grip, its quite impressive actually..

[AngryRB]

hey what tyres you going to upgrade to.. i know theres alot of threads on it, just wondering what you think is best value/grip..

[GTSBoy]

I'm convinced KU36are the best value/grip. But they seldom last more than 5000km on my car.

[boiracer]

how old are your 595's?? ive noticed on other peoples cars that they do stop gripping as well with time. regardless of how much tread is on them, they just seem to break down eventually. its the silica in them I've been told

mine are only as few months old. and very good atm but i drive my car every day, my tires never get a change to get old and slippery.

[Rolls]

hey what tyres you going to upgrade to.. i know theres alot of threads on it, just wondering what you think is best value/grip..

The same ones, federals win hands down for value, kumho ku36s would be the next Id go to but they are a bit more pricey.

Running federal rsrs on the front which are incredible, when new the 595 evos were fantastic as well but they are about 12 months old and have taking a lot of abuse. Is also a daily car but it was off the road for about 5 months recently, probably the main issue.

Edited August 29, 2011 by Rolls

[R33 Eddy]

I glad i found this been thinking my clutch is f*ked or diff is f*ked as something feels like its slipping but get no smoke.. i also have the same tyres with maybe 80% tread...

dropping 2nd grabs and it will also compression lock both wheels so i was a little confused that it could be the clutch..

might try shimming the dift first before changing tyres.

it was my clutch slipping

[Rolls]

Damn.

My tyres seem to have fixed them selves, make lots of noise and hookup better now. Strange.