Quote:
Originally Posted by aleckzandr
I've melted both the left and right stock front brake piston dust boots. I don't notice anything yet... but it's getting disconcerting. Other than pad dust, it's pretty clean in the front calipers as we don't see much rain in Colorado. I am running Pagid Yellows pads at the track. Do BBKs have the same issue, or is it time to simply get a dedicated car? ("Not to BBK" for this car would give me a nice chunk of change to start with a 944, for example.) With the extra disc area of BBKs, I assume the temps stay lower and thus less chance of stuff melting. I'd love to hear your opinion. Cheers.
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Are you still running stock rotors? The BMW stock brakes are pretty large and the rotors are 345mm in front and most BBK are only 355mm if I recall correctly. I believe Brembo makes a 380mm rotor but not sure if it fist the E9x 335i or only the E9x M3. I would say that if you have beter 2 piece rotors that can dissipate heat better than the stock ones even at the stock 345mm size then you should be ok. This would be minimal investment (~$1500-$1800) compared to a full 4 corner BBK which would run you $6500-7500 depending on which one you get.
I am debating the same thing and decided to get better rotors and pads at the stock sizes. I bought the RB Performance rotors that replace the stock ones and will be running PFC 08 pads this weekend at the track. If this is not sufficient then I would buy the BBK.
By the way I have found that you pay a hefty price to buy the entire kit and can probably piece the parts you need for less than a full kit. You probably already have the SS lines (I'm asuming). I have found Stoptech calipers for the BBK at ~$1000 each and the 2 piece rotors at ~$450 each. That makes the price about $5800 for the 4 corners vs $6800 from **********s.com. Add pads since usually the pads that come with these kits are not ones I would consider to use for the track. Just something to think about.
N54_Fan