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Re: Clutch Eye Candy
[Re: therocks]
#437728
08/15/09 02:57 PM
08/15/09 02:57 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
I hear their clutches are awesome.Expensive but good.Rocky
I hope you don't mind me jumping in here.
Bonnfante has rebuilt this clutch twice and they are some good guys. Seeing your cool clutch is like seeing artwork, I know how you feel.  Does it use weights? Clutches are alot of work.
When I would get stuff like that it would sit around my office or inside the house for a few days so I could fully appreciate it. 
I think they copied the Crower unit with some improvements I bet. My first Crower was a small stand clutch and it is still used today by alot of guys. But in the effort to stay current we upgraded to this big stand clutch which is supposed to be more stable with less deflection.It's on the back of my blown alky BAE hemi. It's been 5.49 et. Your'e looking at alot of titaniun,donut,stands and some hardware.
Tool to the right with the dial indicator is what we use to insure that we ground the floaters and disc parralle and flat.
When I started racing TAD in 95 with a Wipple blower and 50PSI of boost we could get 2 runs maybe even 3 before we had to take the clutch out and either resurface the disc and floaters or at swap. Now with 60+# of boost with the PSI it needs to come out every run, which is a lot work.
Got cooling racks for the disc and floaters when we take em out of the car and to keep them in order.If you find a "good combo" you want to keep those disc together and reuse em as much as possible. We could maybe get 4-5 runs per disc if we didn't slip the clutch too much. But on a hot slippy track you can fry disc and floaters in 1 run sometimes and they won't clean up. The floater can get hard spots in it too which sometimes makes resufacing difficult.Dics cost about $75 bucks each in quanity and the steel floaters are close to 100 bucks. 
Had to invest the tooling and equipment to properly maintain it. We take enough clutch parts to make at least the max runs for the weekend and resuface everything at the shop after the race, more work. I lived,eat and slept clutches for a while there. I'm taking a break from racing but still own the car and equipment to race, we;ll see. 
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