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  1. #1
    Controll3d Guest

    Clutch advice needed (Spec R)

    Few weeks ago my S15's clutch went "slightly" slipping. Couldn't hold speed uphills anymore.

    Box still not out, bit problem with motivation and work etc. All bolts are off and shifter, but just need to pull it off.


    Should i keep stock dual mass flywheel (if not badly damaged) and try to find uprated clutch kit or maybe go with driftworks lightweight flywheel and get non dual mass S15 clutch kit?

    Car is my daily drive, well would be... Bit upped boost (for now) with Greddy Profec controller. Keeping dual mass comfort is not essential, but will solid fw setup stress box more? Don't want to be replacing clutch every summer, tho.

  2. #2
    craig8585 is offline I'm so cool, I have my own fan thread :p
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    I would keet the stock S15 dual mass flywheel and fit a S14 ACT heavy duty organic clutch kit.

    Feels like the original clutch but bites very strongly. Perfect for mildly tuned daily drive, without spending silly money on a Super Coppermix.

  3. #3
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    Get rid of it, it's 10 years old and most likely FUBAR. As long as you get a sprung clutch disc then you won't add stress onto the gearbox

  4. #4
    craig8585 is offline I'm so cool, I have my own fan thread :p
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    Then you risk vibrations and all sorts as members on here have reported. Super Coppermix is the way to go, if you have deep pockets.

  5. #5
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    Super Coppermix, drooooollllllll.

  6. #6
    craig8585 is offline I'm so cool, I have my own fan thread :p
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    They are such nice clutches to use but the dual mass/ACT combo is genuinely not far off. My first S15 had a Super Soppermix and I wish I had removed it before selling it!

  7. #7
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    DeanS15 is offline My car is so clean you could eat off it.
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    If you remove the dual mass flywheel you do introduce vibrations because it's no longer there to absorb them. It isn't damaging, I've run 2 single mass for 3 years and they both did exactly the same, but it does eliminate the problems associated with dual mass flywheels and allow you to shave lots of weight off the crank. I had dual mass with my first tune, but went to single when I went up to above 350bhp/ib. It's a trade off really, you just don't know how long a dual mass flywheel will last at that power but a single mass is just a piece of metal so can't go wrong

  8. #8
    Controll3d Guest

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    Coppermix is no go. Bit too expensive and maybe bit overkill anyway.

    Didn't know S14 clutch is compatible with s15 dual mass even that it's sprung? Cover aswell? I'd guess need to source release bearing separate then.
    This kit same as s14 clutch but with right bearing?
    http://www.driftworks.com/shop/exedy-organic-sports-clutch-nissan-silvia-s15-1999-2002-2-litre-sr20det.html


    Causing vibration, so not any different with non dual mass setup like on S14 (or any car with solid flywheel)?

    I don't care if it's ACT or Exedy or any other, as long as it will work properly and last more than one summer.

  9. #9
    DeanS15's Avatar
    DeanS15 is offline My car is so clean you could eat off it.
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    S14 sprung clutch will fit mate. Release bearing and pilot bush are exactly the same between s14 and s15

  10. #10
    craig8585 is offline I'm so cool, I have my own fan thread :p
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    The only difference that will cause you issues is the flywheel. S14 friction plates are sprung too, but it's not a bad thing. It's what I have and what I'd probably do again..

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