loftygoals Posted August 2, 2007 Share Posted August 2, 2007 In a previous weekend, I used PFC97 in the fronts and stock pads in the rear. It felt great. I am more accustom to Hawk Pads, so I ordered a set of Hawk Blues for all for corners. The car stopped fine in a strait line, but the blues needed a ton more pedal pressure and you couldn't do any trail braking at all. The rear wheels would lock and slide out from under me with even the lightest braking. I pulled in and swapped the rears for stocks. The pedal still seemed like it took a lot of pressure, but I didn't have any more problems with rear wheel lockup on the stock pads. Has anyone else experienced this? If so, what have you found to by the right pad balance? -bj Quote Link to comment Share on other sites More sharing options...
944-Spec#94 Posted August 3, 2007 Share Posted August 3, 2007 I have run blue at all 4 corners for a few years. I never experienced balance issues. However as a matter of course I bleed the brakes each morning. In that past I experienced some long pedals at autocrosses after a track day. One bleed the brakes were always spot on perfect again. So part of my morning routine is to bleed the brakes and do a visual on the suspension. The motive power bleeder is an excellent bleeder for this use. On an interesting side note back in June I did a 1/2 day test. I ran 5 laps before my rear caliper litterally broke off and I spun off track. I have never seen nor hear of it but the caliper broke clean through and jammed up in the wheel. I can only guess they were cracking slowly. My advice is to bleed the brakes and closely inspect the brake casting to ensure no cracks. I think my case was an isolated incident, but it worth a look. When my failed I locked the right rear wheel causing me spin off uncontrolably. I had plenty of room, but not all tracks may allow for that. Unfortuanlty I don't have pictures. I should have some in the next few weeks. Quote Link to comment Share on other sites More sharing options...
Tim Comeau Posted August 3, 2007 Share Posted August 3, 2007 There may be something to what you say about brake lockup while trail braking. Brake pads have several different performance variables, e.g., initial bite, torque exerted while being applied, and release. If the Hawk Blues have a better initial bite, they may cause lockup of a lightened wheel. A street pad with less initial bite may slip a little more, preventing lockup. In any case, I might sooner look to your suspension tuning to get a better "set" of the chassis under braking, rather than giving up some stopping power. Also, an LSD will help prevent lockup under braking. Let us know what you find. Quote Link to comment Share on other sites More sharing options...
Chuck T. Posted August 3, 2007 Share Posted August 3, 2007 I ran hawk blues at pueblo last month. it was my first ever use of race pads . I thought the pedal was super easy to lock up and loved them ! perfect balance . front and rear. Quote Link to comment Share on other sites More sharing options...
Off Camber Posted August 3, 2007 Share Posted August 3, 2007 I run the KFP Gold Front and rear. I like them but have no comparrison as this is my first year and have not experimented with alternate pads. Quote Link to comment Share on other sites More sharing options...
Chuck T. Posted August 3, 2007 Share Posted August 3, 2007 BTW please check with DARTAUTO.com when shopping for brake pads They are planning on being a national sponsor for 944-spec but a few customers from other regions would sure help ! Quote Link to comment Share on other sites More sharing options...
loftygoals Posted August 3, 2007 Author Share Posted August 3, 2007 I might sooner look to your suspension tuning to get a better "set" of the chassis under braking, rather than giving up some stopping power. I think you may be on to something mentioning the suspension. I'm still riding on stock shocks and springs, but using Hawk Blue pads and Toyo RA1s. Thus I have lots of stopping power. It might be that I'm getting so much nose dive and weight transfer under braking that the rear wheels lighten significantly causing them to easily lock up. Just for the record, my co-driver experienced the same thing. Also, an LSD will help prevent lockup under braking. Really? Will an LSD transfer brake torque between the wheels? I guess it makes sense that it would, but I have never thought about it. Thanks for the replies, guys! -bj Quote Link to comment Share on other sites More sharing options...
Sterling Doc Posted August 14, 2007 Share Posted August 14, 2007 This is what happened to my Hawk HT-10's at Road America. Strangely, I went back to the Hawk Blues, and they worked great, even though they are one step less aggressive. Quote Link to comment Share on other sites More sharing options...
schwank Posted August 14, 2007 Share Posted August 14, 2007 I can lock the rears up under full braking weight transfer on my car. Currently have stock front suspension and Koni's on the rear, running Hawk HP+ pads. I can't wait to get my front suspension done, but that will wait for the winter as I have a LOT of stuff to do when I get to that point. Quote Link to comment Share on other sites More sharing options...
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