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It was tempting but I need to stay married!

And I though I was bad! The wife has found a 12 step program for track addiction but I don't have a problem, do I?........................

That is amazing! Congrats.

Congrats! Nice car.

The pads are moving a bit in the calipers as indicated by the pattern of the piston on the backing plate.

Very positive. Thanks

Iv'e replaced the rotors several times. I think I have an idea about what is going on and how to fix it. I'll get it all sorted out and post results. Thanks for the input.

Both the 4 and 6 piston calipers are forged billet calipers. You would hard presed to tell them apart except by looking at the number of pistons.

Really the only difference between Tom's car and mine is the 6 piston calipers vs the 4 piston. Those two calipers use the same pad. The total piston area in the 4 pots is a bit more that the 6 pots. Tom uses the same hub and the same bracket to hold the calipers in place. I'm just really good at tearing up stuff no one else has broken.

I took the other side off last night and removed the pistons. That side is worn just like the right side but not quite as bad. I'm working on what I believe is a solution but I will not know until the next track day. I'll post back after that.

Good point on the spacing. If you are going to use a bracket, it doesn't matter too much.

I was there Saturday looking for seals for this caliper. I may go back and see what he has.

Excellent point!

I currently have performance friction pads 01 compound. The car brakes very well when the fluid stays in the calipers. http://www.performancefriction.com/pages/compounds.htm

Thanks for the input guys. I now have several places to look at and items to address. I'll get it figured out. Would anybody here try to use that caliper again?

I'll add another duct. I've got the 3 inch to the center. Do you think that caliper is worth trying to reuse?

Thanks for the input.

The other side will get taken apart this week if I have time. I'll post the results.

I'm not ready to start throwing money at the car yet. I do think caliper flex is part of the issue and have an idea or two about that. I'll wait to hear from wilwood and Dave to get there take on things. I don't understand floating rotors enough to get how they would help with caliper flex. I do understand how that design would greatly reduce rotor wear. This is an interesting read on caliper design. http://www.stoptech.com/tech_info/wp_monobloc.shtml The search continues for a fast, reliable, cheap track car. Perhaps perpetual motion would be an easier problem to solve.

It's a two piece solid set up. Arizona Z stuff. I wonder if Dave's hat could be made to work with something like this? It's Brembo hardware for there floating rotor setup.

Wilwood forged billet superlites http://www.wilwood.com/Products/001-Calipers/012-FSL/index.asp

I really don't think this is a problem with Dave's stuff. I'll post any info I get from Dave or wilwood.

I've sent these pics to willwood and Dave at arizona Z. It will be interesting to see what they say. I'm sure the answer will involve more $$$.

jmortensen PMed me and his theory is caliper flex. I think that would account for the wear pattern in the bores. If it was a problem with alignment, I think the wear in the bores on the inside half of the caliper would be reveresed or a mirror image of the wear in the bores on the outer half of the caliper. Does that make any sense?

I have not taken apart the other side yet. I just measured the caliper face to the rotor and there may be 2 or 3 thousands differerents between the front and rear. There is a bit of taper on the pads but nothing excessive.