Indysupra Posted November 10, 2018 Report Share Posted November 10, 2018 Long story short. Car in question is an old car so a lot of stuff is discontinued thru oem. Dealership pricing on calipers is $168, 6-piston wilwood’s thru summit are 268. So it fits by the rules. Autozone and rock auto prices for cheap crap(that does not belong on a race car anyway) is $68. Is it that easy? Will that work? The car has enough brakes and can lock up the tires at will just looking for more even pad wear and possibly getting more life out of the pads. Opinions and recommendations. Another point is I already have the calipers from another project. Thanks. Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee mcoppola Posted November 10, 2018 Technical Advisory Committee Report Share Posted November 10, 2018 (edited) 6 piston calipers will end up having points assessed for them. Your best bet is to write an email to tech to see how many points they'll cost you.the rule below addresses 4 piston calipers but not 6. It will be techs discretion since it's not spelled out. 4.8.2. Wilwood calipers, up to a maximum of 4 pistons, that exceed the 2X Rule will be valued at 5 pts per caliper. Edited November 10, 2018 by mcoppola Quote Link to comment Share on other sites More sharing options...
Snake Posted November 10, 2018 Report Share Posted November 10, 2018 (edited) 2 minutes ago, mcoppola said: 6 piston calipers will end up having points assessed for them. Your best bet is to write an email to tech to see how many points they'll cost you. 4.8.2. Wilwood calipers, up to a maximum of 4 pistons, that exceed the 2X Rule will be valued at 5 pts per caliper. If they do not exceed the 2X rule they are free. The rule only applies if you go OVER 2x for Wilwoods. I have that in writing from Mike. Edited November 10, 2018 by Snake Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee mcoppola Posted November 10, 2018 Technical Advisory Committee Report Share Posted November 10, 2018 3 minutes ago, Snake said: If they do not exceed the 2X rule they are free. The rule only applies if you go OVER 2x for Wilwoods. I have that in writing from Mike. Did your car come factory equipped with 6 piston calipers? Quote Link to comment Share on other sites More sharing options...
Indysupra Posted November 10, 2018 Author Report Share Posted November 10, 2018 4 minutes ago, Snake said: If they do not exceed the 2X rule they are free. The rule only applies if you go OVER 2x for Wilwoods. I have that in writing from Mike. That’s how I read it and the reason for clarification. The 6-pistons are not anything expensive or crazy. Quote Link to comment Share on other sites More sharing options...
enginerd Posted November 10, 2018 Report Share Posted November 10, 2018 1 minute ago, mcoppola said: Did your car come factory equipped with 6 piston calipers? #of pistons in OE calipers is irrelevant. Only the price is. Quote Link to comment Share on other sites More sharing options...
Snake Posted November 10, 2018 Report Share Posted November 10, 2018 (edited) 3 minutes ago, mcoppola said: Did your car come factory equipped with 6 piston calipers? Doesn't matter. The only limitation under the 2x rule is $$, not amount of pistons. Edited November 10, 2018 by Snake Quote Link to comment Share on other sites More sharing options...
Snake Posted November 10, 2018 Report Share Posted November 10, 2018 3 minutes ago, Indysupra said: That’s how I read it and the reason for clarification. The 6-pistons are not anything expensive or crazy. You will need documentation. Bring it to tech. Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee mcoppola Posted November 10, 2018 Technical Advisory Committee Report Share Posted November 10, 2018 Thanks guys. Then I stand corrected. Sorry to put bad info out there. Looks like another rule that could use better wording. I'm not sure of the value for a 6 piston that exceeds 2 X then. But for the OP, if they are under 2x I understand your input Quote Link to comment Share on other sites More sharing options...
Indysupra Posted November 10, 2018 Author Report Share Posted November 10, 2018 I walked into a gm dealership and got the price and then looked on gmpartsdirect.com and got the same price. Like I said some of the parts are discontinued but the prices are there. Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee Chris Huggins Posted November 10, 2018 Technical Advisory Committee Report Share Posted November 10, 2018 Print out the price of both old and new, put it in your notebook, and bring it with you to every race event. Every "2x" part in my car has the above documentation. It has never been an issue. #of pistons is fairly irrelevant to performance, only pad wear. 1 Quote Link to comment Share on other sites More sharing options...
Indysupra Posted November 10, 2018 Author Report Share Posted November 10, 2018 6 minutes ago, Huggy said: Print out the price of both old and new, put it in your notebook, and bring it with you to every race event. Every "2x" part in my car has the above documentation. It has never been an issue. #of pistons is fairly irrelevant to performance, only pad wear. Thanks. We have never had anything that has applied to the 2x rule and your right it’s all about pad life/wear. Quote Link to comment Share on other sites More sharing options...
Team Infiniti Posted November 10, 2018 Report Share Posted November 10, 2018 Someone please go check the rules, I was/am under the impression we can not run 6 piston units Quote Link to comment Share on other sites More sharing options...
morganf Posted November 11, 2018 Report Share Posted November 11, 2018 1 minute ago, Team Infiniti said: Someone please go check the rules, I was/am under the impression we can not run 6 piston units Says can't run 6 pistons wilwoods for 5pts doesn't say can't run 6 pistons just that it would be more than 5pts 1 Quote Link to comment Share on other sites More sharing options...
Indysupra Posted November 11, 2018 Author Report Share Posted November 11, 2018 Rules specifically read “if” over the 2x rule it’s 5pts per caliper for 4 pistons. I’m sure “if” over the 2x rule 6’s would be more. I just want clarification. It’s not about performance advantage, it’s about throwing away expensive pads that have 50% pad on one end of them. Quote Link to comment Share on other sites More sharing options...
Team Infiniti Posted November 11, 2018 Report Share Posted November 11, 2018 (edited) 1 hour ago, mcoppola said: 6 piston calipers will end up having points assessed for them. Your best bet is to write an email to tech to see how many points they'll cost you.the rule below addresses 4 piston calipers but not 6. It will be techs discretion since it's not spelled out. 4.8.2. Wilwood calipers, up to a maximum of 4 pistons, that exceed the 2X Rule will be valued at 5 pts per caliper. My rule book foo must be weak, I saw 4 pistons max and stopped there. Edit: Where are these cheap wilwood 6 piston calipers ? I would need a pair of these + figuring out a rotor Prod #: 120-11779-RD Price: $353.93 Not chumpy. Edited November 11, 2018 by Team Infiniti 1 Quote Link to comment Share on other sites More sharing options...
Indysupra Posted November 11, 2018 Author Report Share Posted November 11, 2018 Rules specifically read “if” over the 2x rule it’s 5pts per caliper for 4 pistons. I’m sure “if” over the 2x rule 6’s would be more. I just want clarification. It’s not about performance advantage, it’s about throwing away expensive pads that have 50% pad on one end of them. Pretty much every car in chump could fit this in. Quote Link to comment Share on other sites More sharing options...
Team Infiniti Posted November 11, 2018 Report Share Posted November 11, 2018 (edited) Im not trying to be negative but This clarification, if a low amt of pts, could encourage more then the quest for even wear, it could help distance the top spenders from the rest Yes I want 6pots on our car, no can not dig enough cookie jars up to buy 18in wheels plus $$ tires Edited November 11, 2018 by Team Infiniti Quote Link to comment Share on other sites More sharing options...
Indysupra Posted November 11, 2018 Author Report Share Posted November 11, 2018 The car had 17” on it from the factory so one more inch is not a huge difference. Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee Chris Huggins Posted November 11, 2018 Technical Advisory Committee Report Share Posted November 11, 2018 Races can still be won on small brakes, no body panic. 4 Quote Link to comment Share on other sites More sharing options...
Indysupra Posted November 11, 2018 Author Report Share Posted November 11, 2018 4 minutes ago, Huggy said: Races can still be won on small brakes, no body panic. Love it. We have won before on stock brakes before also. Just wanting to improve our program. Quote Link to comment Share on other sites More sharing options...
TBone Posted November 11, 2018 Report Share Posted November 11, 2018 I still think brakes should be free. Add all the weight you want via giant rotors, calipers, and the wheels to fit over them. We're all on the same type of tires, and you can only stop as good as the tire will let you. I understand all the reasons for bigger brakes, and I'm not criticizing anyone's decision for their car. But there does come a point where big enough is big enough. 1 Quote Link to comment Share on other sites More sharing options...
Indysupra Posted November 11, 2018 Author Report Share Posted November 11, 2018 Agree!! Quote Link to comment Share on other sites More sharing options...
Snorman Posted November 11, 2018 Report Share Posted November 11, 2018 Quote 4.8.2. Wilwood calipers, up to a maximum of 4 pistons, that exceed the 2X Rule will be valued at 5 pts per caliper. If the calipers don't exceed the 2X Rule the number of pistons is irrelevant. If they do exceed the 2X Rule the above statement applies. That being said, IMO, with the tire restrictions we have in Champ, I'm not sure that 6-piston calipers are of any benefit over a good 4-piston caliper with the proper setup. S. Quote Link to comment Share on other sites More sharing options...
Team Infiniti Posted November 11, 2018 Report Share Posted November 11, 2018 2 hours ago, Huggy said: Races can still be won on small brakes, no body panic. You wouldn't say that if you had a auto trans Quote Link to comment Share on other sites More sharing options...
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