Clutch problems

achien · 05-20-2007, 09:58 PM

Quote:

Originally Posted by Bravo1

Not sure on all terminology but it could be preasure plate related.

Did this usually happen after launches or power shifting but not after normal driving? Also are you a person that tends to keep your foot on the clutch even when cruising? Either way by the time your clutch is slipping like that, it pretty much means that you have fried it already.

So guidelines... no power shifting.... if its what I think it is.... you can mess up a clutch pretty bad. Leason one... rev match, leason two... rev match... leason 3... rev match. Rinse and repeat. No drop clutch launches... slip clutch at low rpm till clutch engages then floor. Any races do from a second gear roll... works better for the 335 anyway.

Agreed, but for Sparta3223.

Lesson #0: Please take a proper (not your friends or family as driving instructor) manual transmission driving course.

toofasttooslow · 05-21-2007, 02:20 AM

Quote:

Originally Posted by Bravo1

Well an integra had what... 100/lb ft of torque vs 400? Makes a little bit of a difference.

Maybe this video is an indicator of what is happening... an old but good one.
http://www.metacafe.com/watch/85336/...lutch_burnout/

I would really have to see how he drives to know, but even with a good bit of abuse.. going through two clutches is pretty bad. What rubber are you running now? You had to have killed your rear tires by now easily.

I fail to see your relevance here. Sure the Integra only made 100lbs of torque, but the clutch was designed to handle that load and not 400lbs like the 335i clutch should be able to handle. If it can't it's a design issue plain and simple. Maybe they're putting Integra clutches into the 335's ?

skim7x · 05-21-2007, 02:32 AM

Quote:

Originally Posted by Sparta3223

Well ya thats what happened

. . . . . . . . .
wow... i cannot believe!

HyperM3 · 05-21-2007, 07:44 AM

Quote:

Originally Posted by Sparta3223

Well ya thats what happened

Well, I guess that closes this thread.

Yeah, I guess Ill take the time out right now to say how awesome it is that the 335 can be a lot of forum members first cars in life. You all know how to drive them as well as us old farts here. You definitely rank in the same league as us and there should be no more discrimination towards you. You deserve only the best!

Bravo1 · 05-21-2007, 08:33 AM

Quote:

Originally Posted by gum5h03

I fail to see your relevance here. Sure the Integra only made 100lbs of torque, but the clutch was designed to handle that load and not 400lbs like the 335i clutch should be able to handle. If it can't it's a design issue plain and simple. Maybe they're putting Integra clutches into the 335's ?

Just to clarify what I meant.... the 300 lb/ft of torque that the 335 has over the Integra does make a difference in the design. Do I think its a design flaw? Well yes and no. Will the clutch work for a person that knows how to drive a manual correctly and sanely.... I have no doubt that it does. But can it handle a Procede with incorrect technique and abuse... probably not. It was most likely a compromise made for drivability and to suit 98% of the drivers out there.

The difference between the 335 and an Integra as far as durability is concerned... if you screw up in a 335 then the clutch has to handle a hell of alot more force than an Integra has to. Over engineering something with 100 lb/ft and still keeping it livable is probably not that hard... but doing the same thing to a Viper, Z06 etc... well not as easy... it assumes there will be driver logic.

Sparta3223 · 05-21-2007, 11:34 AM

Quote:

Originally Posted by HyperM3

Well, I guess that closes this thread.

Yeah, I guess Ill take the time out right now to say how awesome it is that the 335 can be a lot of forum members first cars in life. You all know how to drive them as well as us old farts here. You definitely rank in the same league as us and there should be no more discrimination towards you. You deserve only the best!

What? This is not my first car it is my fourth car.

HyperM3 · 05-21-2007, 12:07 PM

Quote:

Originally Posted by Sparta3223

What? This is not my first car it is my fourth car.

But your first manual. What did you have before?

toofasttooslow · 05-21-2007, 03:03 PM

Quote:

Originally Posted by Bravo1

Just to clarify what I meant.... the 300 lb/ft of torque that the 335 has over the Integra does make a difference in the design. Do I think its a design flaw? Well yes and no. Will the clutch work for a person that knows how to drive a manual correctly and sanely.... I have no doubt that it does. But can it handle a Procede with incorrect technique and abuse... probably not. It was most likely a compromise made for drivability and to suit 98% of the drivers out there.

The difference between the 335 and an Integra as far as durability is concerned... if you screw up in a 335 then the clutch has to handle a hell of alot more force than an Integra has to. Over engineering something with 100 lb/ft and still keeping it livable is probably not that hard... but doing the same thing to a Viper, Z06 etc... well not as easy... it assumes there will be driver logic.

I see your point and agree 100% with you. I guess it's a fine line between driveability and durability. Maybe BMW walked that line a little too closely this time. Either way it makes me sad to see someone trash such a nice car as this with clutch dumping and burnouts.

Sparta3223 · 05-21-2007, 05:41 PM

Quote:

Originally Posted by HyperM3

But your first manual. What did you have before?

wrx 323i 330i

533ogetnom · 05-21-2007, 05:46 PM

wait why is our clutch being comapred to an integra clutch, ofcourse the 335 clutch is going to be beefier to handle the stock torque... i have noticed it slips a lot if you ride it way to much, but its meant for what its being used for i'm sure

and the fact that the engine takes so dam long to spin down should give you an idea

Sparta3223 · 05-21-2007, 06:10 PM

I think that you guys are assuming i beat my car up a lot more than I do. I said I do burnouts and drop the clutch and shit but not on a regular basis or anything just maybe like 9 times or so.

toofasttooslow · 05-21-2007, 06:15 PM

Quote:

Originally Posted by 533ogetnom

wait why is our clutch being comapred to an integra clutch, ofcourse the 335 clutch is going to be beefier to handle the stock torque... i have noticed it slips a lot if you ride it way to much, but its meant for what its being used for i'm sure

and the fact that the engine takes so dam long to spin down should give you an idea

It was a durability example from my experience. Just a for instance type of thing. Yes, it *should* be able to handle the torque being thrown at it by the stock engine, but it might not be "over engineered" to take the torque that's put out by a boosted car.

Bravo1 · 05-21-2007, 07:20 PM

Quote:

Originally Posted by 533ogetnom

and the fact that the engine takes so dam long to spin down should give you an idea

That just means that it has a very heavy flywheel. If you put in a lightweight flywheel the rpms would drop alot faster. This actually makes it harder to drive smoothly as the rpm's drop off so fast that you need to use the throttle to rev match on every upshift. Some people already do this, but I am sure alot don't especially for just stroling around town.

Sparta - No one on this board can say what the cause of the clutch failure is because only you know what you have and have not done to your vehicle. Being that you are in Cali, you can always go to a racing school or an SCCA track day and have people ride along with you and examine what you are doing wrong.... that way you can eliminate whether or not its driver error.

Sparta3223 · 05-21-2007, 08:28 PM

I finally managed to contact rob from uc motorworks. He said their racing clutch is not out but will be released in about 2 weeks. I guess this means another shitty bmw clutch is going into my car

achien · 05-21-2007, 08:51 PM

Quote:

Originally Posted by Bravo1

That just means that it has a very heavy flywheel. If you put in a lightweight flywheel the rpms would drop alot faster. This actually makes it harder to drive smoothly as the rpm's drop off so fast that you need to use the throttle to rev match on every upshift. Some people already do this, but I am sure alot don't especially for just stroling around town.

Interesting, I do find a need to rev match even on upshift in order to drive like a chaffeur (to my sleeping wife and son) on this car.

Sparta3223 · 05-22-2007, 06:21 PM

Okay so I had this german car specialist order a new clutch for my car because I'm to lazy to take out the proceed and take it to the dealership. He said the clutch only cost 250 dollars? wtf is there any possible way this could be right?

wj4 · 05-22-2007, 06:27 PM

Quote:

Originally Posted by Sparta3223

Okay so I had this german car specialist order a new clutch for my car because I'm to lazy to take out the proceed and take it to the dealership. He said the clutch only cost 250 dollars? wtf is there any possible way this could be right?

Sounds right. The expensive part is the labor itself.

Bravo1 · 05-22-2007, 09:39 PM

Considering the problems that you have had.... I would say to make sure that you get the preasure plate and not just the clutch disc. I think they are usually packed together, but you never know.

Sparta3223 · 05-22-2007, 11:39 PM

I need to order a short shifter so they can install it while they are doing the clutch. Any reccomendations for which one i should get would be appreciated because I have no idea which one I like.

05-21-2007, 05:46 PM	#54
533ogetnom Banned 95 Rep 1,760 Posts Drives: 335coupe Join Date: Apr 2007 Location: Florida iTrader: (1)	wait why is our clutch being comapred to an integra clutch, ofcourse the 335 clutch is going to be beefier to handle the stock torque... i have noticed it slips a lot if you ride it way to much, but its meant for what its being used for i'm sure and the fact that the engine takes so dam long to spin down should give you an idea
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05-21-2007, 06:10 PM	#55
Sparta3223 Banned 1 Rep 49 Posts Drives: 335i Join Date: May 2007 Location: Los Altos California iTrader: (0)	I think that you guys are assuming i beat my car up a lot more than I do. I said I do burnouts and drop the clutch and shit but not on a regular basis or anything just maybe like 9 times or so.
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05-21-2007, 08:28 PM	#58
Sparta3223 Banned 1 Rep 49 Posts Drives: 335i Join Date: May 2007 Location: Los Altos California iTrader: (0)	I finally managed to contact rob from uc motorworks. He said their racing clutch is not out but will be released in about 2 weeks. I guess this means another shitty bmw clutch is going into my car
	Appreciate 0 Quote

05-22-2007, 06:21 PM	#60
Sparta3223 Banned 1 Rep 49 Posts Drives: 335i Join Date: May 2007 Location: Los Altos California iTrader: (0)	Okay so I had this german car specialist order a new clutch for my car because I'm to lazy to take out the proceed and take it to the dealership. He said the clutch only cost 250 dollars? wtf is there any possible way this could be right?
	Appreciate 0 Quote

05-22-2007, 09:39 PM	#62
Bravo1 Private First Class 1 Rep 114 Posts Drives: Accord Join Date: Sep 2006 Location: Lafayette, LA iTrader: (0)	Considering the problems that you have had.... I would say to make sure that you get the preasure plate and not just the clutch disc. I think they are usually packed together, but you never know.
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05-22-2007, 11:39 PM	#63
Sparta3223 Banned 1 Rep 49 Posts Drives: 335i Join Date: May 2007 Location: Los Altos California iTrader: (0)	I need to order a short shifter so they can install it while they are doing the clutch. Any reccomendations for which one i should get would be appreciated because I have no idea which one I like.
	Appreciate 0 Quote