Clutches GTR - Push or Pull, Twin or Triple

[meshmesh]

Ideally it would be nice if this thread could become the be all & end all of GTR CLUTCH Solutions... So here's hoping.

After doing a search resulting in some 166posts dating back when Australia was founded, & yet no real solution, I post this hoping for a simple solution for all.

My problem is finding a clutch for the R33 GTR, apparantley some model 33 gtr are similar to 32gtr & then some 33 clutch work with 34's, some are push & some are pull.. WTF is the difference? Some say push is cheaper than pull, Nismo Clutches are straight fitting, OS Clutches need modifications.. who knows.

Heres a table, maybe someone can fill in the blanks..

(please state whether it's push, pull, twin, triple, ceramic, whatever else you can think of)

R32 - <200rwkw

R32 - <300rwkw

R32 - <450rwkw

R33 - <200rwkw

R33 - <300rwkw

R33 - <450rwkw

R34 - <200rwkw

R34 - <300rwkw

R34 - <450rwkw

Also: What clutches fit what models? eg: does the 32 fit a 33? or a 33 fit a 34?

Thanks

meshmesh

[benjiman74]

the clutch fiited to r32 gtr from 89 - 92 is the pull type. R32 93+, r33 & r34 gtr all run the push type clutch.

[Don Cornelius]

Err, no...

8/89 to 2/93 push clutch fitted to 32

2/93 to 12/94 pull clutch fitted to 32

All R33s are push

R34s are pull.

To fit a decent tripple you need a push clutch

[Jay95R33]

I can confirm that a 94 R32 GTR is a pull type. And this pull type on a 94 R32 GTR is different to a R34 pull type. (the R34 GTR pull type is about 10mm higher).

J

[Merli]

With the exception of Jay's post, everything else has errors in it.

Let me post from my NISMO catalog that lists exactly what they are.

BNR32 (Start ~ 2/93) - PUSH

BNR32 (2/93 ~ End) - PULL

BCNR33 - PULL

BNR34 - PULL (But incompatible to non BNR34s for reasons stated in Jay's Post)

[ylwgtr2]

yes yes...i concurr with jay!!!Prob for the same reasons!!

[ed]

ER34's are Pull too...can you confirm that Merli?

Also is there a benefit pull over push or push over pull?

[Merli]

ER34's are Pull too...can you confirm that Merli?

Also is there a benefit pull over push or push over pull?

ER34s use PULL clutches, and are the same as the (2/93 ~ End) BNR32/BCNR33 PULL clutches.

Not sure what advantage there is of one over the other, but I know that OS Giken only make PUSH clutches and I had to buy the OS Giken Conversion kit to adapt their clutch for my BCNR33.... From that I assume (probably incorrectly) that PUSH clutches are better?

[ylwgtr2]

push type clutchs are better for high horsepower applications....i hear you can get more clamping pressure out of a push type clutch

[ed]

Thanks for confirming that Merli.

ylwgtr2, yeah I was thinking about that, more of a clamping force can be applied?

[Don Cornelius]

DAmn, i came on to correct what i said, but Merli has said it all perfectly, nice one

And yea, push clutches are far better for big HP applications

[NRB]

Can someone explain the difference in a push and a pull clutch? I assume the slave cylinder is mounted with the piston facing forward in a pull type and rearward in a push type...

[Jay95R33]

Can someone explain the difference in a push and a pull clutch? I assume the slave cylinder is mounted with the piston facing forward in a pull type and rearward in a push type...

Yepp, that's it.

Plus when you see the pressure plate you'll see the difference.

With a push type, when you push the clutch peddal in, the thrust bearing 'pushes' on the pressure plate splines which disengages the clutch.

With a pull type, as you said, the slave cylinder is facing the other way around, and when you push the clutch peddal in the thrust bearing 'pulls' the pressure plate out (the thrust bearing is actually clipped into the pressure plate splines) to disengage it.

Here's some pics to show you the difference.

J

[vspecv]

merli is spot on.

manufatures generally go for pull type as it is easier on the foot,and can use higher clamping loads without increasing the heavieness at the pedal, but not ideal for high hp appliactions