Opinions on Xtreme Ceramic Twin Plate Clutches?

[Rychiie]

 

Hey guys just chasing a new clutch for my 400+kw R34 GTT build. Looking to buy a Xtreme Ceramic 230mm Twin Plate Clutch. 

Would you recommend this clutch and what was your experience using it?

[BK]

It will be fine for what you want, but ceramic tears the shit out of flywheels.

[GTSBoy]

Isn't the standard answer to this question Nismo Supercoppermix?

[BK]

Generally, yes. Second is probably OS giken.

[Ben C34]

I have one in vy ss turbo. Definitely holds the power no worries, as per all ceramics don't love being slipped but manageable..

 

[Rychiie]

How would you describe the pedal feel? Is it really stiff/heavy?

[Ben C34]

5 minutes ago, Rychiie said:

How would you describe the pedal feel? Is it really stiff/heavy?

Very light.  Light as or lighter than stock. 
the issue with grabby clutches is trying to modulate them, and the fact they don’t want to modulate. 

[Ben C34]

And to add to that , I bought it amongst other reasons, cost and local support. 
i am in Adelaide, they are in Adelaide. 
for rebuild etc that’s useful

[GeeDog]

I've got one in an R33 GTST track car, with around 300 RWKW. Mine is the Xtreme "230mm twin plate race clutch with ceramic solid centre" - they have a few different twin plate options so not sure if this is the same one.

Pedal feel is good, and very light (certainly lighter than the single plate Xtreme ceramic puck that was in before, probably lighter than stock clutch). I don't find it hard to modulate, but I don't drive it on the street, only the track. Full noise starts are easy, no issues with it being too "grabby".

Like Ben, cost (around $1000 less than a Nismo) and local support were factors, plus the previous single plate Xtreme lasted a lot longer than I expected it to given the harsh environment & power level. I don't regret buying it.

[Rychiie]

I am also considering the standard nismo super coppermix but im unsure of the actual rating. It states 471 KW however im not sure if they measure it from the flywheel or at the wheel.
 

What do you guys think?

[BK]

Look just buy a clutch and try it, it won't be the last one you ever buy. But to answer the question again:

Nismo more driveable but would hold less power than the Xtreme twin. Xtreme twin less progressive, but you can't have your cake and eat it too. (compared to a standard organic full face clutch anyway.)

If that is your choice of clutches, personally I'd go with the xclutch on price, and ACS after sales support in Adelaide is really really good. They supplied me with all the ATS carbon triple clutches too/

[Rychiie]

Car is mostly for street duties being my main daily. I'm more leaning towards the standard nismo twin coppermix so long as it can hold 400 rwkw comfortably.

Edited February 6, 2020 by Rychiie

[GTSBoy]

Um, the comp version of the Nismo is <$50 more and >100kW more. I know which one I would buy if I was looking at 400rwkW.

This is just me harping on a subject that I have little direct experience with though. So listen to the others ref the Extreme. I have an Extreme clutch behind my Neo, but it is a baby clutch, so not relevant. Except inasmuch as it did have a mechanical problem years after I bought it and Extreme covered something like half the replacement cost, even though it was well used. They are good people.

[BK]

Look it's rwd, the right single will hold it, but a multiplate is obviously better for more surface area, therefore better torque holding. 

Your overthinking it. Personally I'm not a fan of the Nismo clutches, had one once, never again. That's in launched GTRs, they just don't last repeated 7000+ rpm 4WD launches (waits for the Nismo coppermix brigade to chime in saying they are the best clutch ever).

Anyway sounds like you've got your mind made up so I don't really understand why you're still asking.

Buy one, try it, let us know what you think.

[GeeDog]

8 hours ago, Rychiie said:

Car is mostly for street duties being my main daily.

The Xtreme is a noisy f ucker when released, not sure I'd like driving it in city traffic.

[BK]

Um, when any clutch is engaged, how can it be noisy ? It's clamped so where is this noise you speak of coming from ? Do you mean disengaged (foot on clutch) and makes the signature Multi plate rattle, which all multiplates do ?

[Ben C34]

Enageged, released , off on, depressed

Just words

you know when it is noisy.

[GeeDog]

41 minutes ago, BK said:

Um, when any clutch is engaged, how can it be noisy

Sorry, pretty sure I didn't say engaged.

 

Released, as in not engaged, as in depressed. Sorry if my terms don't meet your approval - actually no I'm not, I couldn't give a f**k. I was pointing something out to someone who may or may not know how noisy a multiplate can be, not looking for a rude reply from you. If you know as much as you claim, you'd know what I meant by released - don't make up shit to make yourself look like an expert.

 

[BK]

What's with the attitude ? Was not trying to be rude. Not making anything up, released was a shit term to use. I could use the term released as my foot not on the clutch, for example (clutch pedal is released). It was very clear what I meant, not what you meant. Having a go is not what I meant at all. I was not having a go, only clarifing. All multiplates generally do the rattle when depressed / disengaged mate, that's what I was getting at.

[Ben C34]

There are multiplates that don't rattle in the oem world, not sure in aftermarket.

It is a fair racket but at least you know why your car is making a crazy noise, people in the drive through not so much