clutch slipping on the dyno

Thread Tools
 
Search this Thread
 
Old Sep 8, 2012 | 01:32 PM
  #1  
phaphon's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2008
Posts: 2,160
Likes: 0
From: central valley
Default clutch slipping on the dyno

ok so i have about 10 k miles on my stage 5 unsprung clutch master. i was on the dyno today , and was making about 326 whp and bout 231 tq . we notice the tq was dropping like crazy. can it be because i didnt bleed the clutch when i put the motor back together? or do i need a replacement ? if so what are your guys recommendations ? im looking to make close to 500 whp on race gas but will be daily driven at bout 380-400 whp. sorry i forgot to mention this is on my gsr turbo
Reply
Old Sep 8, 2012 | 01:42 PM
  #2  
SC2150's Avatar
Honda-Tech Member
 
Joined: Aug 2012
Posts: 8
Likes: 0
Default Re: clutch slipping on the dyno

Either the air gap was not checked properly during install or you are getting oil from the rear seal in it....no way it should be slipping at that power level..
Reply
Old Sep 8, 2012 | 02:12 PM
  #3  
wantboost's Avatar
Who is Mr Robot?
iTrader: (2)
 
Joined: Jul 2004
Posts: 21,474
Likes: 10
From: ATL - Where the Pimps and Players dwell
Default Re: clutch slipping on the dyno

um, if you pulled the transmission out then put it back in or disconnected the line from the master to the slave you need to re-bleed...

how bad have you beaten on the clutch? 10k miles is a lot if you drive like a dipshit everywhere you go
Reply
Old Sep 8, 2012 | 02:19 PM
  #4  
phaphon's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2008
Posts: 2,160
Likes: 0
From: central valley
Default Re: clutch slipping on the dyno

i mostly drive it to where imma go race . each track is two hours away from me . and when i pulled the trans all i did was unmount the slave cylinfee from the trans
Reply
Old Sep 8, 2012 | 02:21 PM
  #5  
wantboost's Avatar
Who is Mr Robot?
iTrader: (2)
 
Joined: Jul 2004
Posts: 21,474
Likes: 10
From: ATL - Where the Pimps and Players dwell
Default Re: clutch slipping on the dyno

im assuming drag racing, meaning burnouts and slipping off the line? the disc is probably shot. pull the boot off of the trans and look in with a flashlight... i bet there's friction material everywhere
Reply
Old Sep 8, 2012 | 02:22 PM
  #6  
phaphon's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2008
Posts: 2,160
Likes: 0
From: central valley
Default Re: clutch slipping on the dyno

yeah drag racing. and ok ill check on it right now
Reply
Old Sep 8, 2012 | 02:25 PM
  #7  
CDecker0218's Avatar
Honda-Tech Member
 
Joined: May 2010
Posts: 1,010
Likes: 0
Default Re: clutch slipping on the dyno

my stage 5 clutch held 600+whp. No reason for yours not to be
Reply
Old Sep 8, 2012 | 02:30 PM
  #8  
phaphon's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2008
Posts: 2,160
Likes: 0
From: central valley
Default Re: clutch slipping on the dyno

Originally Posted by CDecker0218
my stage 5 clutch held 600+whp. No reason for yours not to be
what brand ? clutch master? and how much miles did you have on it? and i just look where the boot is i dont see anything i will try to bleed it .

incase i do need a new clutch any clutches you guys recommend ? brand stages ?
Reply
Old Sep 8, 2012 | 02:31 PM
  #9  
wantboost's Avatar
Who is Mr Robot?
iTrader: (2)
 
Joined: Jul 2004
Posts: 21,474
Likes: 10
From: ATL - Where the Pimps and Players dwell
Default Re: clutch slipping on the dyno

a properly maintained and not beaten on clutch will.
a clutch, no matter what ":stage" can only survive so much abuse

im betting its time for a new friction disc and i wouldn't be surprised if the pressure plate was heat scored to hell and back and the flywheel needed to be resurfaced
Reply
Old Sep 8, 2012 | 02:42 PM
  #10  
phaphon's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2008
Posts: 2,160
Likes: 0
From: central valley
Default Re: clutch slipping on the dyno

ok. so should i just buy a new disc? and resurface the flywheel and pressure? also how do you properly maintain a clutch ? when i launch i feather the gas not clutch.
Reply
Old Sep 8, 2012 | 07:27 PM
  #11  
phaphon's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2008
Posts: 2,160
Likes: 0
From: central valley
Default Re: clutch slipping on the dyno

anyone got any recommendations on clutches?
Reply
Old Sep 8, 2012 | 07:49 PM
  #12  
CO_RaceFab's Avatar
Honda-Tech Member
 
Joined: Oct 2005
Posts: 1,132
Likes: 1
From: greeley, co, usa
Default Re: clutch slipping on the dyno

competition stage 5 is what i use in all the street cars that come in. if you unbolted the slave and didnt take the line off than i doubt it needs bled. a clutch system thats not bled properly wont have the symptoms you are having i.e. it wont slip it will just be hard to get into gear or not go in at all. as said above but not in an assholish fashion you probably burnt it up prematurely, dont feel bad you were probably lauching the car properly and saved axles and trannys... good job i would rather replace a single disk clutch every few months than change axles or trannys at the track.
Reply
Old Sep 8, 2012 | 08:02 PM
  #13  
phaphon's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2008
Posts: 2,160
Likes: 0
From: central valley
Default Re: clutch slipping on the dyno

ok so i read another post and looks like the cc has held up for alot of people. and i will try it. question is can i still use my clutch master pp? and question how do you properly maintain the clutch?
Reply
Old Sep 8, 2012 | 08:08 PM
  #14  
Muckman's Avatar
Moderator in Chief
iTrader: (2)
 
Joined: Sep 2001
Posts: 9,506
Likes: 7
From: Buffalo, NY
Default Re: clutch slipping on the dyno

I would personally stay with the CM and just replace the disc. I have a CM stg 4, 4 puck holding 375ftlbs also with 10k miles. I think youll be fine. Just has alot of miles and abuse on yours.
Reply
Old Sep 8, 2012 | 08:32 PM
  #15  
phaphon's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2008
Posts: 2,160
Likes: 0
From: central valley
Default Re: clutch slipping on the dyno

yeah so should i go to a stage 4 sprung? i also just remember i dont think i broke in the clutch. but after i went turbo i dont do full throttle shifts.
Reply
Old Sep 8, 2012 | 08:44 PM
  #16  
wantboost's Avatar
Who is Mr Robot?
iTrader: (2)
 
Joined: Jul 2004
Posts: 21,474
Likes: 10
From: ATL - Where the Pimps and Players dwell
Default Re: clutch slipping on the dyno

if you didn't break it in thats also a problem, full throttle shifts don't matter. you aren't supposed to drive a fresh organic clutch hard
Reply
Old Sep 8, 2012 | 08:53 PM
  #17  
phaphon's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2008
Posts: 2,160
Likes: 0
From: central valley
Default Re: clutch slipping on the dyno

ok. my lesson learn since im trying to budget myself i will try getting another disc. do you guys recommend a stage 4 ? can i resurface the pressure plate if needed?
Reply
Old Sep 8, 2012 | 08:54 PM
  #18  
wantboost's Avatar
Who is Mr Robot?
iTrader: (2)
 
Joined: Jul 2004
Posts: 21,474
Likes: 10
From: ATL - Where the Pimps and Players dwell
Default Re: clutch slipping on the dyno

pressure plate cannot be resurfaced
Reply
Old Sep 8, 2012 | 09:21 PM
  #19  
phaphon's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2008
Posts: 2,160
Likes: 0
From: central valley
Default Re: clutch slipping on the dyno

ok i will im pretty sure i saw hot spots on the pp . i think i will be trying out the cc since i wi
l need a new clutch kit
Reply
Old Sep 8, 2012 | 10:01 PM
  #20  
met's Avatar
met
Honda-Tech Member
 
Joined: Jul 2010
Posts: 237
Likes: 0
From: Jax, FL
Default Re: clutch slipping on the dyno

If you like the CM I would stay with it. I hate my CC.
Reply
Old Sep 8, 2012 | 10:18 PM
  #21  
phaphon's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2008
Posts: 2,160
Likes: 0
From: central valley
Default Re: clutch slipping on the dyno

i dont really like the cm. i didnt see nothing special.
Reply
Old Sep 8, 2012 | 10:20 PM
  #22  
wantboost's Avatar
Who is Mr Robot?
iTrader: (2)
 
Joined: Jul 2004
Posts: 21,474
Likes: 10
From: ATL - Where the Pimps and Players dwell
Default Re: clutch slipping on the dyno

i love all of my competition clutches... company is local to me and they always stand behind their stuff... i've had a stage 1 and a stage 5 in my civic, as well as a custom built single disc on my sr20 and it stood up to tons of clutch kicks
Reply
Old Sep 9, 2012 | 04:35 AM
  #23  
fcluddington's Avatar
Honda-Tech Member
 
Joined: Aug 2009
Posts: 323
Likes: 0
From: Aurora, Nebraska
Default Re: clutch slipping on the dyno

op why don't you show up some pictures of the clutch, PP, and flywheel. Show pictures of the "fingers" on the PP they will tell alot about the PP condition. Personally I would re surface flywheel, New clutch and PP. I think 10,000 miles of racing is getting your moneys worth out of a clutch.
Reply
Old Sep 9, 2012 | 07:37 AM
  #24  
phaphon's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2008
Posts: 2,160
Likes: 0
From: central valley
Default Re: clutch slipping on the dyno

the clutch is still in the car. i dont want to pull it till i have enough for a new clutch yet. anybody know of a cheap place to get a cc kit. ?
Reply
Old Sep 9, 2012 | 10:33 PM
  #25  
CO_RaceFab's Avatar
Honda-Tech Member
 
Joined: Oct 2005
Posts: 1,132
Likes: 1
From: greeley, co, usa
Default Re: clutch slipping on the dyno

Speed factory has good prices on them
Reply



All times are GMT -8. The time now is 03:35 PM.