Wilwood Q pads characteristics

[gsxrken]

I'm disappointed that my Wilwood street pads (Q) require some heat to work well. I cannot chirp or lock the tires for the first few attempts at panic stops, but if I perform 2-3 hard stops at highway speeds they start working like mad. I also bought "E" pads for track days, but at this rate I can only imagine the heat they'll need, if I go by how much the "street" pads seem to require. This is a 3,300 lb 69 Mustang with 13" Six piston and 12" 4 piston wilwoods, 15/16ths master on stock booster.

I was wondering if anyone else experienced this, and had some recommendations for another pad. And BTW, are the Wilwoods common pad sizes (Hawk, EBC, etc) or are they Wilwood one-off sizes?
Thanks
http://brakepads.wilwood.com/01-selection/q.html

[gsxrken]

Further digging found the following two graphs regarding Wilwood compounds. I'm surprised to see the results, though... I always thought street pads bit harder then track pads at cold temperatures. These graphs indicate that the track pads are WAY better, even at 100* , and everywhere else too, so I guess the only drawback to using them would be rotor wear.
http://brakepads.wilwood.com/index.html
https://static1.pt-content.com/images/noimg.gif
https://static1.pt-content.com/images/noimg.gif
https://static1.pt-content.com/images/noimg.gif

[silver69camaro]

Ken, the Q pad is nothing put a street rod pad, or anybody who wants to keep their wheels clean. My favorite is the J compound - very high bite hot or cold - but they are dusty.

[Steve1968LS2]

Actually that's an old graph. I beilieve the BP-10 has been replaced with the BP-20.

It's a great compromise between street manners and grip and is what I ran on the '69 and on my current '68.

Then again the best part of these brakes is how easy it is to swap pads for the track and run something more aggressive.

Anyways, call Wilwood and ask for info on thier BP-20 pads.

http://brakepads.wilwood.com/01-selection/bp20.html

[gsxrken]

Thanks for the replies. The Q pads suck. Starts in the 30s, never hits 50, and is falling off by 500*. The E pads are hardly better. Those J pads are biting in the 50s right away, and stay in the high 50s. After almost $3k in brakes, I'll live with some dust to get them to work. My only concern is Wilwood's site says "race-only", which must mean they attack rotors more aggressively than most would tolerate on the street. Have you noticed any undue rotor wear?
The BP20 has a better curve than the Q or E pads, but quite ab it less than the J... maybe b/c they appear to be street pads and they are easier on rotors? I think like Steve said I'll call Wilwood and discuss the pros/cons of the two. It looks like in any case I'll be returning the unused E pads for either the BP20 or J pads.

To my other question, does anyone know if other pad manufacturers make pads that fit in the Wilwood calipers? I wonder if I can find similar graphs to compare the friction coefficient to the Wilwoods.

[silver69camaro]

J pads will wear rotors fairly quickly. If you're worried about that, I'd go with the BP-20.

I don't know who else makes Wilwood pads, but honestly, I don't see a need to go with anybody else. Wilwood provides very detaild Cf info in which you can directly compare to other Wilwood pads, and it would be difficult to compare to other brands.

Perhaps you can call Wilwood and get the FMSI number of the pads to see if anybody else makes them.

[6'9"Witha69]

I know the Dynalite parts are an F133i part that accepts many pads. I believe the 6 pots have a similar deal. Porterfield has pads that fit the Wilwoods and the R$-S is a great street/autocross pad as well. use 2 pads, 1 for street (BP-20) and one for track (J), your wheels and rotors will thank you.