I've got the DF in my Vette and a factory clutch on my truck. The Centerforce has a smoother engagement and is easier on the leg. My wife can VERY easily drive the Vette around TOWN without worrying about foot or leg fatigue.

Yes, the pedal has a "breakover" feel, like a compound bow. ALL the older cars I've driven had this feel. The only cars I've driven that don't are newer ones, with hydraulic clutches. I prefer the older feel. Just me.

Also agree on the adjustable pivot stud. Just follow the directions, measure carefully, and it will work well.

 

Got a CF II on the '71...smooth as silk. I'd definitely reccommend it.

 

I have a CFII. The clutch pedal feels fine. It is a little grabby if you shift with the revs up. It took a while to get used to it.

 

http://www.racepages.com/brand/centerforce.html

 

Roadster,

I posted a reply the other day and mentioned the pedal vibration and I wasen't happy with the feel. I spoke to Centerforce about that issue and the fact that it gets lighter when the pedal is fully depressed.
1. The pedal change when it's depressed is normal, as someone else here said, something like a compound bow type feeling.
It's not really severe or anything Roadster, just a little different and you get used to it almost immediately.
2. The vibration might be caused by bad geometry of the clutch fork placement in the slot in the bell housing, according to them. They told me to disconnect the linkage and push the clutch fork to the rear of the car as far as it would go and look at the position in the slot. It should be approximately centered. I did and mine was not, it was almost to the rear of the opening, way from being centered. The vibration may be coming from the fact that the throwout bearing is not centered or making flat contact on the pressureplate fingers because of a bad contact angle.

I haven't had a chance to pull things apart yet but in the interest of being fair, my problems might be due to "operator error" and not a bad or poorly designed clutch. If you choose a Centerforce be more concious of the directions than I was

Good luck,

Bill

Edit: here's a pic of what I'm talking about, see how far back the lever is.

 

Some people have had good luck with their CF clutches. I didn't. The weights on my CF Dual Friction refused to center causing a vibration problem. I moved on to a McLeod, the vibration is gone and the pedal pressure really isn't that much more than the CF. Just my experience.

 

I put in a CF1 and really like it vs stock... however, now wish I would have done the CF2...

 

I'm running a Centerforce Dual Friction and really like the pedal feel. It's got a light weight pressure and very easy to feather when needed, but has a very positive engagement when you want it to.

 

I've had the CenterForce Dual Friction setup on the 502 for over 5 years without incident. Works for me.

 

I had a centerforce in my last vette, on this one (also a 71) I went stock, only real difference is the softer pedal in the force, preformance difference is not noticable, however I'm my engine is a stock LS5, which dosn't push out hugh HP

Rick