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Stock Autocross Brake Bleeding

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Old 08-13-2006, 02:01 PM
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aggie88
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Default Stock Autocross Brake Bleeding

Autocrossers who have stock or near stock brakes. How often do you bleed/flush your brakes?
Old 08-13-2006, 02:54 PM
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johninar
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Until I started tracking the car, I didn't feel like I really got the brakes very hot autoxing. I would bleed them once a season. When I did bleed them, the fluid looked new. Now that I track it, every time I go out. I guess some of that would be how much you autox.
Old 08-13-2006, 03:33 PM
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aggie88
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Originally Posted by johninar
Until I started tracking the car, I didn't feel like I really got the brakes very hot autoxing. I would bleed them once a season. When I did bleed them, the fluid looked new. Now that I track it, every time I go out. I guess some of that would be how much you autox.
Yes, I autocross about once a month, 4 runs about 1 min each. Once a year shouldn't hurt I guess. I change oil once a year...3k annual miles total.

Maumelle huh? What a coincidence, I have business there.
Old 08-13-2006, 03:36 PM
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which one? I've lived here 17 years.
Old 08-13-2006, 04:43 PM
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Barbara_S
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Flushing the system.....

I wasn't concerned about brake fluid as an autocrosser until I started left foot braking this season. I think that really heated things up because I boiled the regular fluid at an event last month.
And that prompted me to buy ATE200 fluid and flush them immediately.
Old 08-13-2006, 08:45 PM
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Solofast
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Originally Posted by Barbara_S
Flushing the system.....

I wasn't concerned about brake fluid as an autocrosser until I started left foot braking this season. I think that really heated things up because I boiled the regular fluid at an event last month.
And that prompted me to buy ATE200 fluid and flush them immediately.
Peter Collins (F1 racer in the late 50's) went to his mentor Fangio and asked him why he was so fast.

In his pigeon english Fangio replied "Morea speed a lessa brakes".....

If you aren't stopping hard you shouldn't be on the brakes. Lots of "left foot brakers" tend to drag the brakes on corner entry when they shouldn't be on them at all.... in an autocross there isn't that much time to get the brakes really hot unless you are overusing them...
Old 08-13-2006, 09:00 PM
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VetteDrmr
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Originally Posted by johninar
Until I started tracking the car, I didn't feel like I really got the brakes very hot autoxing. I would bleed them once a season. When I did bleed them, the fluid looked new. Now that I track it, every time I go out. I guess some of that would be how much you autox.
I bleed before any DE, but only at the start of the autox season.

Have a good one,
Mike
Old 08-14-2006, 01:44 AM
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Jason
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Before and after a DE, and after 3-4 autocrosses. But we have usually have a pretty fast course and get 7-8 runs. It's also a great way to do your preventive maintenance so you look everything over and can maybe catch something before it breaks at the worst possible moment.
Old 08-14-2006, 12:16 PM
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Once or twice a year.
Old 08-14-2006, 04:37 PM
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Barbara_S
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Solofast - You are right about speed - with v710's this weekend I was able to stop trying a lot of the left foot braking and got the best run of the day. It was more useful with less grippy tires though.

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