Can't do wheelspin on 170bhp RWD on dry. Why?
Can't do wheelspin on 170bhp RWD on dry. Why?
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Discussion

naked snake

Original Poster:

35 posts

155 months

Saturday 16th November 2013
quotequote all
Hello,

I have some issues with spinning rear wheels on dry tarmac. The thing is - I have E36 323i (I6, 170 bhp, 245nm/4000rpm).

What's my problem - I've tried to do some quick starts, just to see what that car can do. I've put it in the 1st gear, rev the engine to 4,5k rpm and quickly released the clutch and gave it full throttle. What happened was that the car didn't spin wheels at all, instead it started to accelerate, but rather slowly, the revs first went up to 5k and then slowly began to fall as the car was accelerating until the clutch finally engaged. In other words, it felt like I was slowly releasing the clutch and holding it partially engaged during acceleration. It didn't engange all of sudden.

So the engine is roaring, but accelerates unwillingly, like if I had some automatic transmission. I guess the clutch is slipping. However, the clutch slips ONLY when I want to do rapid start, i.e. rev the engine and release clutch. When the clutch is already engaged, it won't slip at all. I have 205/55/16 winter tyres, it was dry.

I mean - I've managed to do wheelspin with an old golf III with shabby 55kW much more easily than with 170 bhp rwd car. Please, don't think I want to destroy my car, I just wanted to try this. It is my precious smile

So my question is - can the clutch be slipping only when moving off hard, but when the clutch is already engaged, it doesn't slip at all? I tried highway pull on 5th gear and no sign of slipping, hard acceleration on 1st,2nd and 3rd gear and again, all is fine. (my odometer reads 220 000 km, not sure if clutch is still original).

P.S. I removed CDV (clutch delay valve), which I thought was the reason, why can't I spin my wheels when moving off.


Thanks for the answers in advance.



Edited by naked snake on Sunday 17th November 10:40

trickywoo

14,230 posts

260 months

Saturday 16th November 2013
quotequote all
Sounds like you simply don't know how to drive. Hth

s m

24,480 posts

233 months

Saturday 16th November 2013
quotequote all
ASC off ( if you have it )?

RWD cossie wil

4,382 posts

203 months

Saturday 16th November 2013
quotequote all
Slipping clutch under heavy load, does not slip under normal conditions. Replace the clutch, thats about it.

vtecyo

2,122 posts

159 months

Saturday 16th November 2013
quotequote all
Take the tyres off.

Chim

7,259 posts

207 months

Saturday 16th November 2013
quotequote all
This should be fun

TinyCappo

2,106 posts

183 months

Saturday 16th November 2013
quotequote all
Didn't read the bit about you removing the CDV. Your CDV will wreck your clutch So it probably needs changing.

Edited by TinyCappo on Saturday 16th November 22:12


Edited by TinyCappo on Saturday 16th November 22:18

EmmaJ

4,525 posts

176 months

Saturday 16th November 2013
quotequote all
I take it as you've specifically asked about spinning the rears up in the dry means you can spin them in the wet without a problem?

rallycross

13,757 posts

267 months

Saturday 16th November 2013
quotequote all
It Should do it just drop the clutch at high revs.
Years ago I had a nice 323 2.5 24v it was on 17" 225/45 tyres and it had far more grip than power but it could be provoked into wheel spin.

Does your one have a traction Control/acs switch in front of gear lever? if so switch it off and try again.

The_Burg

4,853 posts

244 months

Saturday 16th November 2013
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MGF Trophy, st tyres in corners. Straight line never lets rip. 160bhp, weight sod all.

kambites

71,564 posts

251 months

Saturday 16th November 2013
quotequote all
If the clutch is continuing to slip when the pedal is fully up under any circumstances, there's something wrong with it.

Having said that, it hardly sounds like you're the most mechanically sympathetic of drivers. hehe

SV8Predator

2,102 posts

195 months

Saturday 16th November 2013
quotequote all
I can spin the wheels horrendously on my 84bhp Rover 25! Your car is fked mate! The clutch is fked! Your driving skill is fked!

Great trolling first post by the way!


rehab71

3,362 posts

220 months

Saturday 16th November 2013
quotequote all
Do not feed the troll.

This is his first ever post, and I'd wager his last.

naked snake

Original Poster:

35 posts

155 months

Saturday 16th November 2013
quotequote all
Yes, ASC is the first thing I usually turn off after starting the engine. smile

With the tyres, no can do, local laws command drivers to use winter tyres from November to the end of April. :-/

RWD cossie wil - I thought that hard acceleration in 1st and 2nd gear is still heavy load (i tried it with 4 people onboard and some stuff in boot).

Can't it be rear diff slipping? But you're right, it is probably the clutch. How long can it still last considered I drive 50% motorway, 25% city and 25 b roads and it doesn't yet slip during normal load?

SV8Predator - yeah, I know! Even my grandpa with hyundai getz 75bhp can sometimes spin the wheels at intersection... :-D

Edited by naked snake on Saturday 16th November 22:22


P.S. I don't want to troll anyone, this just drives me nuts. I shouldn't have sold my Peugeot 205 GTi, that car was pure pleasure. But I wanted to try RWD...

Edited by naked snake on Saturday 16th November 22:23

Debaser

8,542 posts

291 months

Saturday 16th November 2013
quotequote all
naked snake said:
What happened was that the car didn't spin wheels at all, instead it started to accelerate, but rather slowly, the revs first went up to 5k and then slowly began to fall as the car was accelerating until the clutch finally engaged. In other words, it felt like I was slowly releasing the clutch and holding it partially engaged during acceleration. It didn't engange all of sudden.
If it was doing this without your foot on the clutch pedal it does sound like it was slipping.

StonetheCrows

769 posts

238 months

Saturday 16th November 2013
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Try wrapping the tyres in selotape, works on Scalextric cars.

RWD cossie wil

4,382 posts

203 months

Saturday 16th November 2013
quotequote all
naked snake said:
Yes, ASC is the first thing I usually turn off after starting the engine. smile

With the tyres, no can do, local laws command drivers to use winter tyres from November to the end of April. :-/

RWD cossie wil - I thought that hard acceleration in 1st and 2nd gear is still heavy load (i tried it with 4 people onboard and some stuff in boot).

Can't it be rear diff slipping? But you're right, it is probably the clutch. How long can it still last considered I drive 50% motorway, 25% city and 25 b roads and it doesn't yet slip during normal load?

SV8Predator - yeah, I know! Even my grandpa with hyundai getz 75bhp can sometimes spin the wheels at intersection... :-D

Edited by naked snake on Saturday 16th November 22:22


P.S. I don't want to troll anyone, this just drives me nuts. I shouldn't have sold my Peugeot 205 GTi, that car was pure pleasure. But I wanted to try RWD...

Edited by naked snake on Saturday 16th November 22:23
Rear diff can't slip, its mechanical. your clutch isn't slipping under normal conditions, only when you abnormally load it, ie dumping full torque into it against a stationary car with reasonable grip. Once you are rolling there is less force used in driving the car forward than there is in trying to spin the clutch on the flywheel.

Welshbeef

49,633 posts

228 months

Saturday 16th November 2013
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Error

stick100

7,017 posts

198 months

Saturday 16th November 2013
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Clutch fked

naked snake

Original Poster:

35 posts

155 months

Saturday 16th November 2013
quotequote all
Debaser said:
If it was doing this without your foot on the clutch pedal it does sound like it was slipping.
Yes, I released the clutch quickly. Maybe I should make a video, but I don't know if I want to abuse the clutch even more, when it works just fine during normal driving.

The thing is,I didn't smell anything burning, which is quite normal, when the clutch slips.