Ignition vs. Roll start?

[1stToyota]

And I hope that you also realize that if you lose your power assist you're brakes aren't nearly as effective. By the time you figure out that you've lost the assist and you'll have to press a lot harder it could be too late. Oh well.

And you lost vacuum to your booster at the track, or are you experiencing brake fade from overuse?

[Loren]

Originally Posted by 1stToyota

And you lost vacuum to your booster at the track, or are you experiencing brake fade from overuse?

I've had both. At autocrosses, the brakes never get hot enough to pad fade (with upgraded pads... the stock pads would fade regularly) or boil fluid. I left-foot-brake when I autocross, so I'm on and off the brakes a lot more than most people. Sometimes near the end of a run, I'll run out of boost. Last weekend, it was happening at exactly the same place on every run. Just one of those things.

Pad fade used to happen at the track a lot until I installed brake cooling ducts.