No it wouldn't. The pads will still be touching the discs whether you release the foot pedal or not, so heat dissipation wont be greater by releasing the pedal at stand still and the discs will be unaffected.

Don`t understand what you mean, if you take your foot off the brake pedal the car rolls so the pads can`t be touching the discs, the way i understand it is the disc is hot from braking and the pad is pressing against the hot disc in one place, so get off the pedal when you have stopped and there s no unnecessary pressure in one spot.

The pistons in the caliper don't retract when you release the pedal at stand still, the pads are always touching the discs but with no pressure behind them. Most discs these days are vented (double discs) and heat dissipates that way. I understand your thinking, but pressure on the disc is irrelevant.

www.powerbrake.co.za/pages/tech_03_warping.htm

Sorry to go on about this but if you go to "Temporary distortion" on the above link and look at the forth paragraph it mentions stopping and leaving pressure on a hot disc.

I knew i had seen it somewhere.

Edited by slowly slowly on Friday 23 June 06:54

deeps

5,393 posts

242 months

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[news]

Friday 23rd June 2006

I read that link and the part mentioning "never leave your foot on the pedal when stopped" is contradicted nicely in the same sentence by:

"You will often notice that race teams will push a racecar backwards and forwards in the pits for a few minutes after the vehicle comes off the track. This is to allow the discs (and other components) to rotate and cool more evenly".

The above statement proves they don't understand what they wrote. It basically states that at stand still the discs will get hotter near the pads, so you need to rotate them so they don't over heat between the pads. If you don't rotate them, having the brake applied or not is irrelevant, as the heat can't escape because the pads are touching the discs, pedal pressed or not.

I think we've hijacked this thread enough now