In Reply to: Re: I agree w/Douglas..., not so fast ! posted by Philo on May 29, 2002 at 21:44:51:
At Summit Point, I'm traveling very nearly 135 MPH going into turn one. After just a few laps, I would have to brake sooner and sooner as the brakes went away. So I replaced the fog lights with ducts and guess what - no more fade!
Unfortunately, I installed the 540 rear calipers at the same time so maybe they get some of the credit?
Another thought. I'd just installed the rear brakes the week before Summit Point, where I took the temperatures. Could the parking brakes have been improperly adjusted (too tight)?
I mentioned an instructor at VIR that said the car felt "squirrely". Surely he is a much better driver than I am (most drivers are) but honestly, it's not unsettling to me.
Could he have been experiencing that uneasy feeling we've all felt when in the passenger seat - and not the driver's seat - of a car traveling at high speed? With a driver we've never met?
As for looping the car, I've never had the back end come around under braking, and yes I trail brake. I have had the back step out many times under acceleration but that's just showing off!
Admittedly, turn one at Summit and Oak Tree at VIR are not off camber. But I would consider repeated braking from 130+, as late as you dare, more than moderately heavy braking.
Also, the posts by Greg K. and Raj are correct.
Perhaps I should carefully check the parking brake adjustment, tape off the front ducts and repeat the experiment.
Or, if you live near Maryland, wanna go for a ride?