Powerbraking from a Roll
12-05-2007, 12:04 AM
#1
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Powerbraking from a Roll Just wondering if anyone powerbrakes your A4 to have it downshift for a roll race, lose some of the time from the sluggish downshifting. i tried it recently and it actually works quite well....any negatives i should know about lol?? and lemme know if you do the same!
12-05-2007, 12:12 AM
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I would just put the shifter down in whatever gear is desired. No reason to wear out brakes or transmission anymore than possible. Maybe if you had a stall it would gain a little, but not very much with a stock converter.
12-08-2007, 08:38 AM
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Just downshift.... I have stock stall/convertor, and I just drop to my desired gear, especially on roll racing...
I run 3.73's so that makes a big difference when you need to drop down gears.
My 2nd gear is the bad boy. 25 - 60, all power band.
I have had my best times @ the track shifting myself....
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12-08-2007, 12:35 PM
#8
Whatever incremental lag is caused by a bigger stall compared to a smaller stall is more than offset by the extra torque multiplication and extra power of being higher in the rpm band.
I realize that doesn't solve the lag, but just pointing out the benefits exceed the lag.
I realize that doesn't solve the lag, but just pointing out the benefits exceed the lag.
12-08-2007, 09:24 PM
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WTF u mean no?....thats exactly what the guy is doing, he thinks that by breaking and putting his car at a higher RPM that its helping him......now I dont approve of it but its his car....i would just drop down a gear, but then again i think roll racing is REALLY gay.
12-08-2007, 11:02 PM
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Dude he is talking about roll racing...so say ur rolling 20mph...if u push on the brake and give it MORE gas to stay at 20mph ur RPMS will be higher, which should mean ur launching in ur power band.....Turbo cars do alot...they brake boost, they roll and push on the brake to to put load on the car and make more boost....so when they say "go" the boosted car will already be making boost.....Like i said i dont think its good for the car nor do i recommend it, but thats what he is doing....its not like he is slaming on the breaks right after the third honk.
12-09-2007, 12:13 AM
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Ok i know he doesnt explain exactly what he does...but i guarantee he is not using the brake only....no one is that stupid...but i could be wrong...lol...i know he doesnt have a turbo, we are just referencing what "brake boost" is, cause thats essentially what he is doing except with out boost.
12-09-2007, 07:31 AM
#13
8a8mfh
Why do you bother posting in a thread that you really dont understand?
You're stupid little trick of slamming the trans from one gear to another to raise the rpm sounds to be about 100X worse on the trans than the little bit of heat that gets built while you run up on the stall using the brakes
The poster is not interested in a MVB. The only thing you said that makes any sense at all was that he needs to tune the downshift lower. What you dont seem to understand is that there is still the lag in the trans downshifting. Thats why the correct answer is to manualy downshift the car to the desired gear for the start to reduce the lag. I spent quite a bit of time logging and practicing starts at different MPH roll racing this year. I for the record prefer a dig race but some of the guys south of me would only roll race and I just like to race.
Ragtop
I agree on the benefits of a larger stall. I have always believed that a good stall should be the first mod on an LS1. My converter stalls at 4800 on the transbrake
Why do you bother posting in a thread that you really dont understand?
You're stupid little trick of slamming the trans from one gear to another to raise the rpm sounds to be about 100X worse on the trans than the little bit of heat that gets built while you run up on the stall using the brakes
The poster is not interested in a MVB. The only thing you said that makes any sense at all was that he needs to tune the downshift lower. What you dont seem to understand is that there is still the lag in the trans downshifting. Thats why the correct answer is to manualy downshift the car to the desired gear for the start to reduce the lag. I spent quite a bit of time logging and practicing starts at different MPH roll racing this year. I for the record prefer a dig race but some of the guys south of me would only roll race and I just like to race.
Ragtop
I agree on the benefits of a larger stall. I have always believed that a good stall should be the first mod on an LS1. My converter stalls at 4800 on the transbrake
12-09-2007, 06:29 PM
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8a8mfh
GT Griller was correct, its the same type of thing as brake boosting, one foot on the brake and one on the gas from a roll, so that your staying at X speed and the rpms go up due to downshifting.... thats what i meant. and i wasnt really asking what i could buy to fix it... just whether or not it was dangerous to my tranny.
GT Griller was correct, its the same type of thing as brake boosting, one foot on the brake and one on the gas from a roll, so that your staying at X speed and the rpms go up due to downshifting.... thats what i meant. and i wasnt really asking what i could buy to fix it... just whether or not it was dangerous to my tranny.
12-10-2007, 01:21 AM
#15
All I'm saying is if you're trying to race and you're putting your brakes on, **** it I don't even have the words to explain.
Powerbrake means give it gas and brake usually when stopped trying to spin the tires. Why would anyone think that you're bettering your chances of winning a roll race by putting the brakes on AFTER the word go?
Powerbrake means give it gas and brake usually when stopped trying to spin the tires. Why would anyone think that you're bettering your chances of winning a roll race by putting the brakes on AFTER the word go?
Stop being ignorant and posing miss info
He wants to know if this would help him in a roll race with his stall
You kinda stalling the car up from a roll, giving it more gas than brake and putting it under load
12-10-2007, 01:23 AM
#16
Dude he is talking about roll racing...so say ur rolling 20mph...if u push on the brake and give it MORE gas to stay at 20mph ur RPMS will be higher, which should mean ur launching in ur power band.....Turbo cars do alot...they brake boost, they roll and push on the brake to to put load on the car and make more boost....so when they say "go" the boosted car will already be making boost.....Like i said i dont think its good for the car nor do i recommend it, but thats what he is doing....its not like he is slaming on the breaks right after the third honk.
for erasing ur previous posts in which u said he used "ONLY" brakes.