S2000 Under The Hood S2000 Technical and Mechanical discussions.

Clutch Drop, No Grip

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Old Sep 21, 2001 | 11:45 PM
  #1  
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From: Austin
Default Clutch Drop, No Grip

Alright, so after listening to some discussions talking about taking off from a stop in the S2000 I decided to try it, now that I finally got it back. Well, I'm stopped in the street, rev to 7k RPMs, and just let the clutch drop. I move forward at a slow pace till about 16 MPH and the RPMs hit the limiter, so I shift, and same happens to about 20 MPH, then finally I shift into third and let off the throttle, and finally I get some movement, but my clutch only finally catches then. And of course I get the horrible smell of burning clutch. I've tried this before, but only slowly letting off the clutch (well, not slowly, but not just a straight drop) and the same thing has happened. This includes the first time I tried it, so it can't have been from me doing it too much, as I've only done it about 4 times. So does this mean my clutch was defective from the beginning? How do you tell a dealership its not gripping when you drop it at 7K and not have them say "Well you're screwed, thats abuse of the car, we won't cover that?"

Blake
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Old Sep 22, 2001 | 12:12 AM
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Get the revs up to 7k RPM, dump the clutch, put the throttle down and then ease off the throttle until the tires grab and then floor it!
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Old Sep 22, 2001 | 05:37 AM
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Frying the clutch is too easy. I suspect you didn't really drop the clutch but eased off it, perhaps quickly. I've only had problems with lack of wheel spin on highly grippy concrete at an autocross. The rest of the time, the problem has been not being brutal enough with the clutch drop and getting clutch slip (along with the associated smell).

If you really want to do this (not recommended under normal circumstances due to the possibility of blowing the diff in particular), side-step the clutch - slide your foot off the left side rather than letting your foot move to your body...
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Old Sep 22, 2001 | 10:53 AM
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You are dumb

You're clutch is probably fried, do you notice engaging at less agressively now?

You didn't do it right, and besides that it's horrible for the car, TRUST ME.. I will never launch like that again (well I plan to turbo it, so I wouldn't need to, but still)

I have had my diff replaced already because it sounded like captain crunch whenever I turned.. I suspect it was from the few launches that I did like this.

It's a very bad idea!!
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Old Sep 22, 2001 | 12:38 PM
  #5  
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From: Austin
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Hey jackass, don't call me dumb. I didn't say I knew how to do it. I said I was doing what some board members suggested. No it is not engaging less aggressively. In fact, I now scratch in second gear more than before. In fact, before I got my car back after being in the shop, I couldn't scratch it in second gear, and I drove it just the same. So how are you supposed to take off, if I'm so dumb and you know so much? I do recall several board members talking about spinning the tires for a while to get a good start.

jguerdat, I dropped it as fast as I possibly could with out sliding off. It did stay on my foot most of the way up, simply because it pops out too fast. I was going to try sliding my foot off to the left, but it was too troublesome to deal with the footrest in the way. So you drop the clutch and let off the throttle till it catches, but that doesn't help if you fall below VTEC. I think after a new exhaust and intake a clutch and pressure plate will be my next purchase!

Blake
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Old Sep 22, 2001 | 12:48 PM
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it's called side-stepping the clutch, not letting it go as fast as you can.

i've done it before (burning it), so it's nothing to be ashamed of.

lastly, people are going to call names whether you like it or not, but if you know you're not dumb (i'm sure you're not since you got this car), don't even worry about it. if you cared about what others say, you probably wouldn't have gotten this car in the first place.
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Old Sep 22, 2001 | 03:04 PM
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I've slipped mine a few times but it grips fine now. You really have to lift faster than you might imagine.

I can't deal with the side step method because if my foot is on the meat of the pedal the rubber nubs grip too much. If I try to hold just the edge of the pedal the foot is insecure and I could launch at a VERY undesirable time (like at a red light into traffic).

I just lift the clutch VERY fast. You also might want to wait until your clutch is broken in and more grippy (if you have low miles now).
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Old Sep 22, 2001 | 03:47 PM
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As others have said, side-stepping is the easiest way to prevent the clutch slip... I tried the "come up as fast as my body would allow" method, and always end up with a fried clutch. Don't do it that way, unless your super man, or have a better clutch, it won't work!

As they said, you litterly go from pressing the pedal all the way down to taking your foot completly off of it... shocks the rear wheels into breaking loose... then just feather the throttle to get moving... Works like a charm, but require a lot of practice on the feathering part... I'm still pretty crappy at it, but I'd rather wear my tires then my clutch ... (Yes, I know your f'n up the diff)

Have fun, and don't worry about what other wouldn't do in their cars...

-- Robert
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Old Sep 23, 2001 | 01:39 AM
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Oh, I'm not ashamed of burning my clutch! My last car was a '92 Toyota Pickup 4x4. Had a new clutch, got stuck in a DRY rut that was literally over a foot deep. Had to have my friend pull me out. Smelled that thing all the way to my house. Man, my parents were PISSED off...

Blake
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Old Sep 23, 2001 | 06:08 AM
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I'm just playing.. but I do know everything!

If you want a good way to launch fairly cheaply, ease out of it at 2500 and spay NOS at 3000 and you won't even miss VTEC!

That will be faster than a 7000 RPM pop because you will grip immediatly.

Chris
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