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advice on clutch

Old 10 February 2019, 08:28 AM
  #1  
the shreksta
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Default advice on clutch

so ive been recommended 3 different clutches for my upcoming build

act heavy duty
competition clutch stage 3
exedy twin plate

i would have thought the twin plate would be overkill for a fast road car under 500bhp and they are also very very expensive. do they drive nice and smooth? i had a paddle clutch in my old blob sti and that was bloody awful so if its anything like that then i wont bother.

any advice please
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Old 10 February 2019, 08:45 AM
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Hatch08
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I’ve had an Exedy Hypertwin FM022SD on the hatch for the last 3 months and it’s great. Pedal a bit lighter than the pink box I had earlier, which started slipping at 450/450. No slippage or judder with the Hypertwin, while the previous pink box was juddering awfully. It was a bit rattly to begin with, but after the break-in the rattling stopped completely. I use the car daily and do 30K miles a year and the Hypertwin is the best clutch I’ve had on the car so far. Definitely worth the premium.
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Old 10 February 2019, 09:25 AM
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Originally Posted by Hatch08 View Post
Iíve had an Exedy Hypertwin FM022SD on the hatch for the last 3 months and itís great. Pedal a bit lighter than the pink box I had earlier, which started slipping at 450/450. No slippage or judder with the Hypertwin, while the previous pink box was juddering awfully. It was a bit rattly to begin with, but after the break-in the rattling stopped completely. I use the car daily and do 30K miles a year and the Hypertwin is the best clutch Iíve had on the car so far. Definitely worth the premium.
thanks buddy, good to hear that they drive pretty good. im still not sure that they are £1100 better than the others though for my needs. whats the max power/ftlbs that they can take?
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Old 10 February 2019, 10:29 AM
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Hatch08
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The FM022SD is rated up to 600lbft flywheel. The FM022HD with the higher clamping force can go up to 730lbft. Mine is a standard 2.5 block with only forged pistons and rods, so the SD is good enough. Will yours be a 2.5 or 2.35?
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Old 10 February 2019, 10:32 AM
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Originally Posted by Hatch08 View Post
The FM022SD is rated up to 600lbft flywheel. The FM022HD with the higher clamping force can go up to 730lbft. Mine is a standard 2.5 block with only forged pistons and rods, so the SD is good enough. Will yours be a 2.5 or 2.35?
2,5 buddy with anywhere between 420bhp-500bhp
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Old 10 February 2019, 10:38 AM
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An imaginary clutch for an imaginary build
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Old 10 February 2019, 10:57 AM
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I see that you’re in Hinckley. I come down to Kettering for work quite frequently. I could do a small diversion for you to have a drive in mine, see how you like the clutch
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Old 10 February 2019, 11:00 AM
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Originally Posted by Hatch08 View Post
I see that youíre in Hinckley. I come down to Kettering for work quite frequently. I could do a small diversion for you to have a drive in mine, see how you like the clutch
that's very kind of you mate, as soon as I'm able to squeeze back in an Impreza (broken shoulder over xmas) I will be in touch.

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Old 10 February 2019, 07:54 PM
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I've got a competition clutch in my classic now it's great no judder it nice and smooth
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Old 13 February 2019, 03:12 AM
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[QUOTE=Hatch08;12044280]
Iíve had an Exedy Hypertwin FM022SD on the hatch for the last 3 months and itís great. Pedal a bit lighter than the pink box I had earlier, which started slipping at 450/450. No slippage or judder with the Hypertwin, while the previous pink box was juddering awfully. It was a bit rattly to begin with, but after the break-in the rattling stopped completely. I use the car daily and do 30K miles a year and the Hypertwin is the best clutch Iíve had on the car so far. Definitely worth the premium.
[/Q
UOTE]

Blimey. I'm on a pink box still at 578/530 no slipping .
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Old 13 February 2019, 01:14 PM
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Hatch08
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[QUOTE=scooby2.5maz;12044575]
Originally Posted by Hatch08 View Post
Iíve had an Exedy Hypertwin FM022SD on the hatch for the last 3 months and itís great. Pedal a bit lighter than the pink box I had earlier, which started slipping at 450/450. No slippage or judder with the Hypertwin, while the previous pink box was juddering awfully. It was a bit rattly to begin with, but after the break-in the rattling stopped completely. I use the car daily and do 30K miles a year and the Hypertwin is the best clutch Iíve had on the car so far. Definitely worth the premium.
[/Q
UOTE]

Blimey. I'm on a pink box still at 578/530 no slipping .
That is awesome dude. How do you manage to make a 370lbft rated clutch take 530lbft?
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Old 13 February 2019, 04:56 PM
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[QUOTE=Hatch08;12044607]
Originally Posted by scooby2.5maz View Post

That is awesome dude. How do you manage to make a 370lbft rated clutch take 530lbft?

mines still on a pink at over 530/520 ,, started slipping now but only after some proper abuse lol been in there a few years at that power before it went
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Old 13 February 2019, 07:00 PM
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[QUOTE=Hatch08;12044607]
Originally Posted by scooby2.5maz View Post

That is awesome dude. How do you manage to make a 370lbft rated clutch take 530lbft?

Ran my last pink box at 428/430 no issues . No idea . It's being on ok .
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Old 13 February 2019, 07:11 PM
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[QUOTE=scooby2.5maz;12044635]
Originally Posted by Hatch08 View Post
[left]


Ran my last pink box at 428/430 no issues . No idea . It's being on ok .
wasnt there an issue with these a few years ago? my 1st impreza (wrx @354bhp) had 1 and it was ****e, always juddering on pull off.

still dont know which way to go with a clutch, somebody has told me that competition clutches are ****e and yet i see alot of people running them................................the mind boggles
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Old 13 February 2019, 08:07 PM
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I'm changing soon as having a 2.35 build as we speak . Extreme clutches seem to be priced ok . 1100 nm on a 1k clutch .
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Old 13 February 2019, 08:12 PM
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Originally Posted by scooby2.5maz View Post
I'm changing soon as having a 2.35 build as we speak . Extreme clutches seem to be priced ok . 1100 nm on a 1k clutch .
I have one of their light flywheels in my car at the minute.
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Old 14 February 2019, 08:58 AM
  #17  
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the issue with 'pinks' always seemed to relate around certain re-sellers of possibly dubious rep...................

make of that what you will but surprisingly we have had very very few genuine issues in near 20yrs of dealing with Exedy direct...........
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Old 14 February 2019, 09:21 AM
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Dan_SCR_RA
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personally ran 460lbft on a 2.5 long rod build with a 5 speed pink box, no issues and that was dragged at pod a fair few times.

FM022SD are decent but not cheap. Dmitrij ran one in his GC8 and you know what hammer that thing gets lol
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Old 24 February 2019, 08:21 PM
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can you get replacement discs for the exedy twin plates? if so how much are they? ive seen a used twin plate for sale with 3.8mm left so it may be a cheaper way into getting one.

at what mm would they need replacing?
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Old 25 February 2019, 09:00 AM
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yes easily available BUT be aware that some require far more than simply the plates if the centre plate has warped, etc.............

sometimes as cheap to buy the right thing 1st time
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Old 25 February 2019, 05:53 PM
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Originally Posted by the shreksta View Post
can you get replacement discs for the exedy twin plates? if so how much are they? ive seen a used twin plate for sale with 3.8mm left so it may be a cheaper way into getting one.

at what mm would they need replacing?

exedy Twin plate is a fantastic. Tried an tested. Takes big power and drives great.
How mich was the used one?
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Old 12 March 2019, 03:09 PM
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Another advocate for the plain old pink box clutch here. Ran 470/425 through mine for a few years no slipping, drove fine.
The only thing I didn't like was the lightened flywheel which seemed to cause the car to bog down at low revs.
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