So i've read people saying that a stock clutch will slip on anything 400+ whp. Can anyone recommend a streetable clutch that won't slip in the 420whp range. The 6 puck that I have now is just not practical to daily drive.

 

Clutch design and holding power go hand in hand. Good luck.

 

What are the ft/lbs on the stock pressure plate?

 

stock preassure plate ratings are:

2007 HR.M/T 1050KGF = 2310
08/2004-2006(self adj) 1010KGF = 2222lbs
09/2002-08/2004 M/T 880KGF = 1936lbs

Centerforce single disk claims its good to 400-450flb of tourqe but ive never seen anyone run it with that much power. However the JWT single plate clutch claims its good for 500lbs for only $420. A 6 puck is almost your only bet IMO(i like 6 puk) unless u have the money to shell out for the Cusco twin plate. From what i hear its streetable and smooth, and at $2400 msrp it should be.

Good luck

 

I'm curious to know where you got your numbers from. I was under the impression that stock pressure readings for the 07-08 HR Z's was around 880 KG. Exedy's Stage 1 racing clutch is 1043 KG (HR Z), and they increase their clamp load from stock. JWT's pressure plate is around 1200 KG and it wouldn't be that much of an increase by your numbers. Could you provide credible documentation for those numbers? Not trying to knock you, just interested to know.

OP, try looking into twin plate clutches e.g. Exedy, OSG, etc. I think they have smoother engagement than the single plates with high clamping force.

 

I got those numbers Via a dealership parts page. If they are off i am sorry and i will repost the numbers. But asfar as i have read up on those are for the most part correct. Ill look in to it thank you.

 

How many ft-lbs does a 1000kg equate to? Or so.

 

2200.

lbs to kg= 2.204 round to 2.2 for simple equations

 

That's just lbs. I'm talkin about ft-lbs but i guess i would have to factor in the type of disc.

http://www.turbomagazine.com/tech/04...ics/index.html


Well I have an ACT HDG6 (heavy duty sprung 6 puck) with about 10k miles. I am cosidering swaping out the 6 puck for an ACT organic street disc. Do I absolutely have to resurface the flywheel and PP?

 

kg is a measurement of mass. Ft-lb is a measurement of moment, or torque. They cannot be converted.

But yes, a 1000 kg doesn't necessarily mean the clutch will hold 250 ft- lbs of torque, or whichever. I would assume it depends on the clutch material and type.

 

couldent have put it any better my self, there is a whole varibale missing to convert to ft-lbs

Its to hard to say you for sure, If it was under 3k i would say probably no depending on the driving style. When you take the clutch off just check the flywheel out and see if there is any major burns or scoring.

 

I have plenty of options for a "Streetable" clutch that will fit your needs.
PM if you would like more info!