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well i was reading up on brake boosting today. is it safe on our cars? for the most part i read up that it will just cut down your brake pads faster but i could be wrong. i saw a couple vids of a boosted vic brake boosting up to 15psi and taking modded vette c5s from a 15mph roll, it was crazy! mind this civic had around 500whp but still same concept. i would have thought any honda vs a v8 torque monster would get eaten whole from a slow roll. made me wanna read it up. my boost response is realllll slow. i gotta wait like a whole 2-3 seconds for my boost to kick in from a roll. its maybe like 2 or 1.5 seconds but it feels like an eternity when your runnin someone yno? lol. so yeah back on track, is brake boosting safe on our cars? thanks in advanced.

 
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nobody has anything on brake boosting?

 
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Pretty sure break boosting is only for autos, why break boost when you can just downshift? (I saw the video you are talking about... i dunno why they break boosted, downshifting works well too....)

Im no expert i could be wrong.

 
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why would you start off in a higher gear that you want to be in when you are ready to race from a roll? you would obviously want to be in the correct gear and not waste time to downshift. you should be in the gear you "downshift" to when you race from a roll. auto and manual turbo cars are the same exact thing. except one is manual and one is auto. brake boosting is a technique to eliminate turbo "lag" when you cruise to WOT. i was jsut wondering if its safe to do in our cars and what it would damage if anything?

 
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try it and let us know

 
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well think about it, you're making a lot more torque under boost, its having trouble going anywhere because you are on the brakes. This puts stress on the tranny, the brakes and the motor. Asking if its safe on our cars? Who the ef knows? I don't consider it to be safe on any car especially a 100 hp econobox that was never made to be a performance car.

 
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I dont think i explained it well, sorry.

But i ment say your in 5th, why stay in 5th and break boost? (im assuming thats the point, to build boost) when you can downshift to 3rd and be at the higher rpms and have boost ready, when you pull.

auto you cant decide what gear your in so i could see, give more gas + break = higher rpms, but still going 50mph or w/e

thats why i said break boosting is auto thing i beleive, manuals can just downshift.

 
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well. thats why im asking. because i dont know. -__-. this thread is dead. lol.

 
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Yeah dude, I know what you're talking about. That's just for autos to get their RPMs up before their launch. (I knew a guy with a 500horse Buick grand national single turbo, he would just sit there and build up to like 2.5bar and let go of the brake, that ish is scray!)
If you have a five speed, and you want to race from a roll, and you want your turbo to create boost, seriously just use a lower gear, your wastegate will define how much. I honestly don't think that you need to have anything to do with brake/boosting.

 
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^^ thank you. most helpful post yet. +1 for you.

 
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If you were cruising at 15 mph then I would assume you would be in 2nd gear, if you were to downshift to first, then you would be almost immediately shifting back into 2nd as the race progresses. This seems like a wasted shift to me, Im not saying brake boosting is the way to go but that shift could cost valuable time. I would take into account wat rpm your at and your cars redline before downshifting to save time.