5 puck sprung hub clutch disk with standard pressure plate?

**kemicalx** · 11-10-2007, 02:47 PM

G'day guys,

Quick question really, I've got a near perfect 7m clutch kit sitting at home, only got about ~10,000kms worth of driving and as a result it looks fine. When my car is back together however, the new power is likely to exceed the stock clutchs holding power. I was wondering what the results of using an exedy 5 puck sprung center disk in the stock pull type pressure plate would be? Lots of chattering? Clutch slip? Any input would be appreciated, Cheers guys.

Ash.

**MR 1JZ** · 11-10-2007, 02:49 PM

you will find it will make a difference but not enough of a difference...upgrading the pressure plate is a necessary part of an "uprated" clutch

**wilbo666** · 11-10-2007, 02:53 PM

Yeah, it will help but prbly not enough!

When I looked into getting a heavy duty clutch for a 1jz (same clutch setup as the 7m), I was told repeatably that the pressure plate design was really good, and they could be modded for increased clamp really well...

I'd get the pressure plate done...

Cheers
Wilbo

**kemicalx** · 12-10-2007, 12:34 PM

Any ideas on the procedure to increase the clamping force with the standard pressure plate? I took the pressure plate into a local clutch place and they didn't know how to do it easily as it was a pull type. I presumed yo'd need to repace the whole diaphram in the cluthc to thicker, stiffer gauge metal.

**MR 1JZ** · 12-10-2007, 12:37 PM

call extreme clutch

they can do it

your local guys are nubs by the sound of it

**wilbo666** · 12-10-2007, 12:45 PM

As said, call a decent clutch shop!

Any number of places in Bris can do it (not helping you much!), Raceclutch, NPC, Direct...!

Cheers
Wilbo

**kemicalx** · 12-10-2007, 02:30 PM

hmmm, yer the guys i spoke with didn't seem all that knowledgable.. So then i guess my next question would be,

Does anyone know of some decent clutch/brake companies around melbourne, preferably on the south/west side?

Thanks again

**ENKI** · 13-10-2007, 12:04 PM

Definitly upgrade the pressure plate. Its what gives you most of the grab on a clutch. Pretty much the only diference between the normal and a "heavy duty" clutch is the pressure plate. You'll know if the pressure plate is good cos it will be a heavy mother of a thing.
My exedy sports pressure plate for my 4AGE i would say is close to 3 times heavier than my stock one.
But then again it goes with the heavy kaaz, g/b, turbo and the list goes on

Nick

**kemicalx** · 14-10-2007, 09:29 AM

Has anyone heard of any problems when using heavy duty pressure plates? Ie. over loading the crank thrust bearing? I was told that apparently the extra pressure due to the thicker diaphram on the presuure plate could cause excess stress on it, and prematurely wear it out?