Spongy brakes question
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Spongy brakes question
2003 Nissan 350z, standard stock brakes (stock rotors, stock brake pads, stock rubber brake lines)
-3 weeks ago, I did a full brake fluid flush, and filled with Ford Prestone Dot 3 fluid (262 boiling point DRY). After flushing the brakes, the pedal was VERY firm. Note - It was very firm with the stock rotors, stock pads, stock lines)
- I did 1 track day, about 30 HARD laps.
- Now, after the track day, I notice my brakes feel spongy again. Same sponginess as they were before I change my brake fluid
What would cause that? Did my brake fluid boil, and create air pockets? Did my fluid absorb that much moisture in the 3 weeks causing it to be spongy again? Did my dot3 prestone fluid only last 1 track day before it was garbage? Or would something else cause it? Are my pads warn causing it to be spongy (i don't think this would happen)
-3 weeks ago, I did a full brake fluid flush, and filled with Ford Prestone Dot 3 fluid (262 boiling point DRY). After flushing the brakes, the pedal was VERY firm. Note - It was very firm with the stock rotors, stock pads, stock lines)
- I did 1 track day, about 30 HARD laps.
- Now, after the track day, I notice my brakes feel spongy again. Same sponginess as they were before I change my brake fluid
What would cause that? Did my brake fluid boil, and create air pockets? Did my fluid absorb that much moisture in the 3 weeks causing it to be spongy again? Did my dot3 prestone fluid only last 1 track day before it was garbage? Or would something else cause it? Are my pads warn causing it to be spongy (i don't think this would happen)
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Thanks for the reply. But I said that befor the track day, and after the brake flush, the bakes were firm, even with the rubber lines. So, after the track day, the rubber lines won't make it spongy if they were firm before the track day. I understand rubber lines will make it spongy durng braking, but while at the track the brakes were firm. It's after that I'm talking about
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Thanks for the reply. But I said that befor the track day, and after the brake flush, the bakes were firm, even with the rubber lines. So, after the track day, the rubber lines won't make it spongy if they were firm before the track day. I understand rubber lines will make it spongy durng braking, but while at the track the brakes were firm. It's after that I'm talking about
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Even with my BBk and ATE blue fluid i still get a little air after a trackday, every day on the track requires a bleed, just a few pumps per caliper is usually fine.
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