B-Rad Posted April 15, 2022 Report Share Posted April 15, 2022 (edited) For the most part, we've been very pleased with the ST43 pads on our E36. But we've run into some issues with the rear pads chunking and the front pads separating from the backing plates. Raybestos has been "looking into it" for awhile now and not providing any answers. We run the stock brakes without ABS. Brake cooling Frozen rotors RS4 tires Proportioning valve We really like the longevity of the wear material and the brake feel is adequate. What do you recommend? Edited April 15, 2022 by B-Rad Quote Link to comment Share on other sites More sharing options...
TimS Posted April 15, 2022 Report Share Posted April 15, 2022 Been using G-loc and PFC on our E30. No problems and performance and durability have been amazing. 1 Quote Link to comment Share on other sites More sharing options...
mindspin311 Posted April 15, 2022 Report Share Posted April 15, 2022 PFC 08 was the default longer wearing endurance pad. Not familiar with G Loc, but some teams seem to like them as well. FWIW, we are on our 3rd set of front ST43s on the Mini and have had 0 issue. 1 Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee mcoppola Posted April 15, 2022 Technical Advisory Committee Report Share Posted April 15, 2022 (edited) We've always bought Hawk Blues (which we've been told are old tech) from series sponsor Frozen Rotors, Mark Link. Since they are NLA for the Focus SVT, Mark recommended the Porterfield R4 compound. We ran them at Mid Ohio without any issues. The modulation was a bit better than the Blues, and they advertise that these are the most rotor friendly compound out there. I appreciate their advice at FR, as they have never tried to push their rotors as something I need, instead saying they shouldn't be necessary with the mass of the OEM pieces on the SVT. Their other advice was to use high carbon alloy rotors. Each application may be different. I see you've got Frozen Rotors on your car, I'd see what they recommend, if you haven't done so already. Edited April 15, 2022 by mcoppola 2 1 Quote Link to comment Share on other sites More sharing options...
Hugh Jass Posted April 15, 2022 Report Share Posted April 15, 2022 We run ST-43 usually and have ran ST-45 in a pinch. I'd like to try the new Hawk ER-1 at some point. As for the pads coming apart, I did run into that some in the past but it seems like the brake ducts we added to the front have helped the condition. 1 Quote Link to comment Share on other sites More sharing options...
misshift Posted April 15, 2022 Report Share Posted April 15, 2022 Years ago keeping pads and rotors on our E36 for one race was a challenge. Added cooling ducts from front bumper to rotors and what a difference. Use Hawk DTC 70 front, DTC 60 rears with stock Textar rotors and can usually get two full events out of pads. Swap out rotors maybe every other time. Drivers heavily influence brake life. Have been wondering how the new Hawk endurance pads will work. Please post results if you try them. Quote Link to comment Share on other sites More sharing options...
B-Rad Posted April 16, 2022 Author Report Share Posted April 16, 2022 20 minutes ago, misshift said: Years ago keeping pads and rotors on our E36 for one race was a challenge. Added cooling ducts from front bumper to rotors and what a difference. Use Hawk DTC 70 front, DTC 60 rears with stock Textar rotors and can usually get two full events out of pads. Swap out rotors maybe every other time. Drivers heavily influence brake life. Have been wondering how the new Hawk endurance pads will work. Please post results if you try them. When you say 2 full events, you mean 28+ hours of time on those Hawk pads? Quote Link to comment Share on other sites More sharing options...
misshift Posted April 16, 2022 Report Share Posted April 16, 2022 Yes, 36 hours of racing. Drive like you're in a sprint race for the entire weekend and the brakes will be maybe 2/3 used up the first weekend. Drive an endurance race and be a little nicer to the brakes and get two full weekends from the brakes. 1 Quote Link to comment Share on other sites More sharing options...
hotrod Posted April 16, 2022 Report Share Posted April 16, 2022 18 hours ago, mcoppola said: We've always bought Hawk Blues (which we've been told are old tech) from series sponsor Frozen Rotors, Mark Link. Since they are NLA for the Focus SVT, Mark recommended the Porterfield R4 compound. We ran them at Mid Ohio without any issues. The modulation was a bit better than the Blues, and they advertise that these are the most rotor friendly compound out there. I appreciate their advice at FR, as they have never tried to push their rotors as something I need, instead saying they shouldn't be necessary with the mass of the OEM pieces on the SVT. Their other advice was to use high carbon alloy rotors. Each application may be different. I see you've got Frozen Rotors on your car, I'd see what they recommend, if you haven't done so already. We were on Hawk Blues then switched to the Raybestos ST43's and what a difference. Much better modulation. We do use Frozen Rotors and they easily last 8 races plus test sessions. Frozen Rotors were able to get the ST 43's not sure how the supply is now. 1 Quote Link to comment Share on other sites More sharing options...
B-Rad Posted April 16, 2022 Author Report Share Posted April 16, 2022 Welp. We tried being the guinea pig with the Hawk ER1. 60 to 120 day lead time. Potentially longer. At least that's what Hawk is telling TireRack. 1 Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee Chris Huggins Posted April 17, 2022 Technical Advisory Committee Report Share Posted April 17, 2022 (edited) I managed to snag a set of er-1 in 7420 shape for my e30 bbk (provided by KNS Brakes). I will be testing at CMP and comparing against st43 which is my normal compound. Edited April 17, 2022 by Chris Huggins 2 1 Quote Link to comment Share on other sites More sharing options...
B-Rad Posted April 17, 2022 Author Report Share Posted April 17, 2022 (edited) 22 minutes ago, Chris Huggins said: I managed to snag a set of er-1 in 7420 shape for my e30 bbk (provided by KNS Brakes). I will be testing at CMP and comparing against st43 which is my normal compound. Very nice. I'd love to hear some feedback once you have an idea of the wear rate. I did reach out to Frozen Rotors. Mark recommended the PFC 08. The Hawk offerings from FCP Euro are tempting (for reasons obvious to people who shop there). But I'm not sure that a race weekend is the time to run an experiment on those compounds. Edited April 17, 2022 by B-Rad Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee Chris Huggins Posted April 17, 2022 Technical Advisory Committee Report Share Posted April 17, 2022 21 minutes ago, B-Rad said: Very nice. I'd love to hear some feedback once you have an idea of the wear rate. I did reach out to Frozen Rotors. Mark recommended the PFC 08. The Hawk offerings from FCP Euro are tempting (for reasons obvious to people who shop there). But I'm not sure that a race weekend is the time to run an experiment on those compounds. Pf08 is an excellent compound and I ran those in the front on oe brakes and got 12 hours or so out of a set. I get 30+ from st43 on oe brakes. in still run pf08 in the rear, and if I could get them to make pf08 in 7420 shape I would run them on the front with my bbk. 2 Quote Link to comment Share on other sites More sharing options...
Aleric Sanders Posted April 18, 2022 Report Share Posted April 18, 2022 Mentioned in the thread twice already: PFC08 is a very good solution. This is my 6th season in ChampCar with my E36 and PCF08's have never done us wrong. We used to do a bit of brake biasing via compound, running PFC08's in the front and Hawk DTC 60's in the rear, as this would allow for more effective work to be done by the rears. After the VIR 12hr last month, there was half of the PFC08's remaining in the front and the Hawk DTC 60's were on the backing plates for the last stint and a half. From my team's data, running the PFC08's will get us about 24hrs, drivers and conditions depending. 1 Quote Link to comment Share on other sites More sharing options...
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