S2000 Under The Hood S2000 Technical and Mechanical discussions.

CDV ?

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Old Jan 22, 2008 | 08:12 PM
  #11  
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Originally Posted by J'sS2K,Jan 22 2008, 04:36 PM
I'm pretty sure 5k RPM for a hard launch is more than enough power.
actually that seems normal for an s2k, alot of people launch higher, and it doesnt take much gas to hold the rpms at 5k, you have to give it more throttle when you let go of the clutch otherwise the rpms will drop...
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Old Jan 22, 2008 | 10:19 PM
  #12  
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Originally Posted by _sonic,Jan 22 2008, 08:54 PM
ok well I am convinced, so how do you remove it ???
they have a diy link...its easy...or if u want..ill sell u my extra one....$45 shipped..pm me...i have this lying around my garage for a while now coz i took it out and put in an ap1 slave cylinder...

ill take out the cdv befire i ship them to u...
ALL U GOTTA DO IS OUT EM ON...
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Old Jan 23, 2008 | 05:00 AM
  #13  
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that c clip is such a bitch
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Old Jan 23, 2008 | 06:32 AM
  #14  
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Clutch slip is due to the pressure plate not having enough grip, not the cdv. People who have removed the cdv state they still experience slip, and people that have replaced the pp or put in a lighter flywheel state they have less slip.

I don't think the cdv is the main culprit - it slows the engagement of the clutch, but its the pp that grips. The clutch will always disengage at the same rate with a cdv, but if you've ever experienced this slippage in an AP2 on a hard shift, the slippage lasts much longer than the cdv delays the clutch. The main culprit imo is a pp that cannot grip the heavier flywheel Honda introduced in2004.

If you remove the cdv, you will have direct release that can engage faster than the cdv on shifts, and that will feel different than the cdv, but for grip, its the pp, not the cdv.
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Old Jan 23, 2008 | 06:35 AM
  #15  
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Originally Posted by negcamber,Jan 22 2008, 12:31 AM
It slips the clutch on rapid shifts. It helps protect the drivetrain from the shock of hard shifts...especially the diff.

Removing it allows power to more rapidly be transferred from the engine to the rest of the drivetrain when shifting, which can make the car quicker.
The cdv ensures a constant release rate no matter how fast you step off the clutch, so the slip should be constant. It does held protect the drivetrain from shock, which is probably why Honda installed it.

However, Honda also replaced the flywheel with a good-deal heavier unit, and that is why there is more slippage now imo - the pp was not upgraded to match the flywheel, so there's slip imo.
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Old Jan 23, 2008 | 07:09 AM
  #16  
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What does the heavier flywheel have anything to do with the pressure plate?
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Old Jan 23, 2008 | 08:32 AM
  #17  
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Originally Posted by SCG-Milan,Jan 23 2008, 08:09 AM
What does the heavier flywheel have anything to do with the pressure plate?
It does. Takes much more force to get it to spin with the pp.

I've held the 06 flywheel and a "regular" one and it's like night and day. Can't wait to change mine out.
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Old Jan 23, 2008 | 08:35 AM
  #18  
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yea once i changed my clutch and flywheel it was much better, i did the pcv at the same time so i cant really compare but to stock but the stock one 04 and up is way heavier, like a lot
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Old Jan 23, 2008 | 08:35 AM
  #19  
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Originally Posted by Saki GT,Jan 23 2008, 10:32 AM
Clutch slip is due to the pressure plate not having enough grip, not the cdv. People who have removed the cdv state they still experience slip, and people that have replaced the pp or put in a lighter flywheel state they have less slip.

I don't think the cdv is the main culprit - it slows the engagement of the clutch, but its the pp that grips. The clutch will always disengage at the same rate with a cdv, but if you've ever experienced this slippage in an AP2 on a hard shift, the slippage lasts much longer than the cdv delays the clutch. The main culprit imo is a pp that cannot grip the heavier flywheel Honda introduced in2004.

If you remove the cdv, you will have direct release that can engage faster than the cdv on shifts, and that will feel different than the cdv, but for grip, its the pp, not the cdv.


having ACT lightweight flywheel and pressure plate put in soon!
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Old Jan 23, 2008 | 10:59 AM
  #20  
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Once I burn out my clutch, a slightly lighter flywheel and firmer pp will be going in along with a new clutch disc.
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