[MR2] can brakes be on too tight?

[JDeRyke at aol.com]

In a message dated 7/2/09 4:14:20 PM, kblake at royalmoore.com writes:
snip.....
> I'll add my endorsement for the Porterfield R4S. I won't run anything 
> else on my "fun" car. They have more aggressive compounds for higher 
> temperature applications. We just became a Porterfield dealer and placed a stocking 
> order for 91/92 Turbo and 93-95 Turbo cars. We can get pads for any 
> generation of MR2. (or other cars, for that matter)
> 
> 
This is only practical. Running stock pads on virtually any car I can think 
of at a track event, figure that you will burn all or most of the pads down 
to the backing plates before the day is over, especially if you have power 
assist to compensate (a little) for fade. And if you have upsized your tires 
or wheels, remember the MR2's stock brake proportioning is set for STOCK 
tires. So if you plan on running giant tires regularly, consider replacing the 
stock system with a manually-adjusting brake proportioning valve to 
re-balance your brakes. 
Rule of Thumb: if you cannot lock up any tire in a panic-stop, you need 
bigger brakes for the tires you now have (assuming the brakes are working 
properly). If you CAN lock up a wheel, you need bigger or stickier tires, and 
depending on whch tire(s) locked, you may also need to change the brake 
proportioning. Spend your bucks- not for maximum bling- but where they'll yield the 
most safety and performance. My 2¢ (or 2¥)- J Deryke


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