R33 GTR - Clutch/Flywheel kit recommendations?

[2rismo]

Ronin, the G-max is what I was originally after, this is the replacement and rated to 640PS

This is what cracks me up about clutch power recommendations. What happens at 641ps in this example? The clutch turns to jelly? Doubt it. What's the go? Anyone?

Adrian

[Blitz]

Here we go, Ring Nismo and ask them yourself.

[ECR033]

This is what cracks me up about clutch power recommendations.  What happens at 641ps in this example?  The clutch turns to jelly?  Doubt it.  What's the go?  Anyone?

Common sense would tell you that it's obviously an 'indication' of the maximum load that the manufacturer will guarentee that the clutch is capable of safely handling. That said, it doesn't mean that the clutch will turn to 'jelly' at anything over 640ps, it just means that the clutch wasn't designed for a load in excess of that figure and that the manufacturer won't guarentee it's capability to handle such a load.

[Blitz]

Ok, the verdict is in.

I picked the car up from Grey Imports this afternoon with the new Nismo clutch fitted and what a difference!

A few things that were immediately noticable:

1. No whine/rattle when the clutch is disengaged - you would think it was stock

2. Very light pedal - I cant see any need for upgrading to the larger operating cylinder

I drove the car through the city in peak hour traffic and it was completely effortless. I would go as far as to say it was easier to drive than the 6 finger heavy duty clutch I previously had. The clutch has a nice bite but isnt aggressive on the road at all.

Bottom line, from what I have experienced thus far, I am extremely happy with the Nismo twin plate

[2rismo]

Common sense would tell you that it's obviously an 'indication' of the maximum load that the manufacturer will guarentee that the clutch is capable of safely handling.

Thanks for that, smartarse.

Common sense tells you that a motor making 340ps can potentially make more torque (the twisting force in your driveline to save you looking it up - and the one affecting your pressure plate's ability to clamp the clutch plate(s)) than one making 640ps. Why clutches are measured based on a power figure remains a mystery to me.

Adrian

[ferni]

Thanks for that, smartarse.

Common sense tells you that a motor making 340ps can potentially make more torque (the twisting force in your driveline to save you looking it up - and the one affecting your pressure plate's ability to clamp the clutch plate(s)) than one making 640ps.  Why clutches are measured based on a power figure remains a mystery to me.

Adrian

but doesnt torque = horsepower X rpm / 5250 ??

Nick: thats what my twin plate felt like for the first couple of months.. You said it doesn't rattle or whine - did your old clutch? was it just a HD single?

[jlnewton]

My car goes next late next week for a whole bunch of things including a Nismo Gmax spec II. I got the Nismo operating cylinder and braided clutch line too so I am keen to see how is goes. I have heard the new coppermix is very nice though, and so far looks like you are confirming it Nick. Nice work.

[Eug]

Jim is up here in QLD.

I didnt get a clutch made by him (NA car - no real need) BUT I did get him to check out a new clutch that was going to be fitted.

He is very cluey with clutches and seems thinks the Jap twin plate/triple plates are all overrated. He builds his own clutches himself and tests it all.

Top guy.

I will be going to him for my next clutch.

Eug

[2rismo]

but doesnt torque = horsepower X rpm / 5250 ??

Peak torque and peak hp hardly ever occur at the same point

Adrian

[williamsf1]

ok any more ideas? the nismo twin or the jim berry special.... these are the choices? and what $$$$$ are we talking for Mr nismo nick?

I will be calling Jim on monday from the couch!

[«Cyph3r»]

Another place from my experience that are good with clutches are "Nicks Performance Clutches" in brisbane.... i had a dog of a clutch (HKS Triple Solid Centre) and he converted it into a twin plate carbotic and machined the flywheel and other bits, whatever you call them, for $600 total. Was heaps better to use afterwards, possibly the easiest clutch i have ever used. Handled the power allright too as long as i had the car it never slipped.

Also avoid OS Giken twin plates, they are not as easy to use in traffic as everyone makes out, they aren't too bad having said that but there are easier clutches to use that will handle the same amount of power and make the drive that mcuh more enjoyable.

All this is from experience, hope its helpfull to someone out there.

Cheers

Jamie

[dnb]

carbon all the way man. i have a twin plate carbon and they are unbelievably easy to use.

dont stuff around with anything less.

[paulR32gtr]

Blitz - what do you think of that nismo clutch now after a number of weeks of use?

[Blitz]

Fantastic!

[lwells]

Interesting, interesting. Need to replace my clutch and I'm leaning towards a Jim Berry "Stage 1" based on all the very positive feedback from SAU owner's with high HP (not that I am running high HP ).

Might have to price one of these up too (Nick: did you find anywhere special to get a price or just the usual Nengun/Greenline/etc)?

Lucien