SCCAchamp Posted February 21, 2019 Report Share Posted February 21, 2019 Road Atlanta was the first race for our team with the E30. Car was great aside from the brakes. My question is why is wildwood singled in this rule? 4.8.1. The retail price of any NEW replacement wheel, brake caliper, brake rotor (1 or 2 piece), or shock absorber that you put on your ChampCar must be less than twice the cost of a stock replacement wheel, brake caliper, brake rotors, or shock absorber that is available on-line by a nationally recognized auto parts retail chain (i.e. - Napa, AutoZone, O’Reilly, Advanced, etc.). ChampCar reserves the right to go on-line and pull up retail prices. 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. Is it due to them being a sponsor? If we upgrade to a different brand that exceeds the 2X rule what happens? What are you other E30 guys running for brake setups? thanks in advance for any assistance! Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee Chris Huggins Posted February 21, 2019 Technical Advisory Committee Report Share Posted February 21, 2019 Just now, SCCAchamp said: Road Atlanta was the first race for our team with the E30. Car was great aside from the brakes. My question is why is wildwood singled in this rule? 4.8.1. The retail price of any NEW replacement wheel, brake caliper, brake rotor (1 or 2 piece), or shock absorber that you put on your ChampCar must be less than twice the cost of a stock replacement wheel, brake caliper, brake rotors, or shock absorber that is available on-line by a nationally recognized auto parts retail chain (i.e. - Napa, AutoZone, O’Reilly, Advanced, etc.). ChampCar reserves the right to go on-line and pull up retail prices. 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. Is it due to them being a sponsor? If we upgrade to a different brand that exceeds the 2X rule what happens? What are you other E30 guys running for brake setups? thanks in advance for any assistance! The car that won is a E30 running stock brakes. What pads and fluid and rotors are you running? To directly answer your question, yes wilwood is called out for a 5 point swap since they are a series sponsor. Quote Link to comment Share on other sites More sharing options...
chip Posted February 21, 2019 Report Share Posted February 21, 2019 Really no need to upgrade the e30 stock brakes. If you feel that they are not adequate, then probably something is wrong with the system, and not that you need to upgrade. Quote Link to comment Share on other sites More sharing options...
mindspin311 Posted February 21, 2019 Report Share Posted February 21, 2019 Can add another data point of E30 brakes are more than enough. Make sure all the components are functioning properly and you're good to go. Quote Link to comment Share on other sites More sharing options...
jakks Posted February 21, 2019 Report Share Posted February 21, 2019 6th place e30 at RA running stock brakes as well. PFC08's are our brake pad of choice. We've ran Valvoline DOT3 (I think....) brake fluid and have had no issues. Make sure you do something for cooling the fronts and see what braking style drivers are using before you think you need to upgrade brakes. PFC08's last anywhere from about 21-28 hours for us. RA seems to be the hardest on brakes of the tracks we race at. Quote Link to comment Share on other sites More sharing options...
SCCAchamp Posted February 21, 2019 Author Report Share Posted February 21, 2019 ok thanks for the input. I'm thinking our master cylinder is not functioning at 100%. We had aggressive pads, rotors, and fluid, and great cooling but the brakes had no real bite. They were consistent but weak. We are racing Charlotte next and want good brakes for turn 1. Quote Link to comment Share on other sites More sharing options...
mindspin311 Posted February 21, 2019 Report Share Posted February 21, 2019 5 minutes ago, SCCAchamp said: ok thanks for the input. I'm thinking our master cylinder is not functioning at 100%. We had aggressive pads, rotors, and fluid, and great cooling but the brakes had no real bite. They were consistent but weak. We are racing Charlotte next and want good brakes for turn 1. MC makes a huge difference, we actually had ours fail completely at RA, pedal to the floor. Quote Link to comment Share on other sites More sharing options...
jakks Posted February 21, 2019 Report Share Posted February 21, 2019 9 minutes ago, SCCAchamp said: ok thanks for the input. I'm thinking our master cylinder is not functioning at 100%. We had aggressive pads, rotors, and fluid, and great cooling but the brakes had no real bite. They were consistent but weak. We are racing Charlotte next and want good brakes for turn 1. What pads are you using? Quote Link to comment Share on other sites More sharing options...
SCCAchamp Posted February 21, 2019 Author Report Share Posted February 21, 2019 We were using pfc08 pads. Anyone ever do the 7 series master cylinder mod? Quote Link to comment Share on other sites More sharing options...
Rodger Coan-Burningham Posted February 23, 2019 Report Share Posted February 23, 2019 On 2/21/2019 at 3:28 PM, SCCAchamp said: We were using pfc08 pads. Anyone ever do the 7 series master cylinder mod? I think the question would be why? The E30 brakes have good balance between brake pressure and not being too aggressive to lock up a wheel. Since there are better endurance pads than the pfc08 and xp08 mentioned here that have good performance and life on an E30 that's a pretty good indicator that the brakes are sufficient in stock form. Quote Link to comment Share on other sites More sharing options...
mindspin311 Posted February 23, 2019 Report Share Posted February 23, 2019 On 2/21/2019 at 4:28 PM, SCCAchamp said: We were using pfc08 pads. Anyone ever do the 7 series master cylinder mod? We tried the 7 series MC, lasted one DE weekend and we took it off. Completely messed up the balance and was way too touchy. Quote Link to comment Share on other sites More sharing options...
jakks Posted February 23, 2019 Report Share Posted February 23, 2019 1 hour ago, Burningham said: I think the question would be why? The E30 brakes have good balance between brake pressure and not being too aggressive to lock up a wheel. Since there are better endurance pads than the pfc08 and xp08 mentioned here that have good performance and life on an E30 that's a pretty good indicator that the brakes are sufficient in stock form. What pads do you think are better than pfc08? Legitimate question. 08’s seem to have a good balance between pedal feel, initial grab and most of all, pad life and cost. We tend to get 21-28 hours so if something can get more of all the above then we’d be willing to try them. Quote Link to comment Share on other sites More sharing options...
Rodger Coan-Burningham Posted February 23, 2019 Report Share Posted February 23, 2019 (edited) 2 hours ago, jakks said: What pads do you think are better than pfc08? Legitimate question. 08’s seem to have a good balance between pedal feel, initial grab and most of all, pad life and cost. We tend to get 21-28 hours so if something can get more of all the above then we’d be willing to try them. Thats the point I was trying to make, you get good life out of the 08 so no need to run anything better and therefore more expensive. Edited February 23, 2019 by Burningham 1 Quote Link to comment Share on other sites More sharing options...
theblue Posted February 25, 2019 Report Share Posted February 25, 2019 (edited) big ass brake ducts to the front really help also cryo blank rotors from tirerack are dirt cheap and last longer / take abuse better. +1 on PF08 FTW Edited February 25, 2019 by theblue Quote Link to comment Share on other sites More sharing options...
zack_280 Posted February 25, 2019 Report Share Posted February 25, 2019 We buy cheap rotors and toss them after every race. After a 14hr race we get a fair amount of vibration, but we've never had braking issues (except for vibration after many hours). PFC08s have been pretty tough to beat. We tried cryo rotors once. As I recall we still had to toss them because they didn't seem to fare much better. So we just run the cheaper ones. Quote Link to comment Share on other sites More sharing options...
mhr650 Posted February 25, 2019 Report Share Posted February 25, 2019 There are big brake kits for E30’s based on Wilwood calipers out there, but they seem to bend you over pretty bad on the costs. My contacts at Wilwood expressed interest in building a Wilwood supplied bolt on kit for E30’s like they have done for the E46. I am working on designing brackets and hats to fit the E30, if Wilwood decides to offer the kit it will be a very cost effective way to get big brakes on our cars, if they decide not to offer the kit I would be happy to share drawings with ChampCar racers so you can make the parts for your car. 1 1 Quote Link to comment Share on other sites More sharing options...
Racer7x Posted February 25, 2019 Report Share Posted February 25, 2019 2 hours ago, zack_280 said: We buy cheap rotors and toss them after every race. After a 14hr race we get a fair amount of vibration, but we've never had braking issues (except for vibration after many hours). PFC08s have been pretty tough to beat. We tried cryo rotors once. As I recall we still had to toss them because they didn't seem to fare much better. So we just run the cheaper ones. Reasonably priced Centric high carbon rotors holds up very well... 3 Quote Link to comment Share on other sites More sharing options...
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