Brake boosting
#1
Junior Member
Thread Starter
Join Date: Mar 2005
Location: Melb- Aus
Posts: 33
Likes: 0
Received 0 Likes
on
0 Posts
Brake boosting
Hi guys, I picked my 94' rx7 up two weeks ago and have read about brake boosting on this forum before. I never asked about it because I have never owned a turbo...Can someone explain to me how you brake boost? and what effect it is supposed to have?
"I've heard a lot about people brake boosting on the roll, so decided to practice it today, but it doesn't really feel much faster. When you're brake boosting, you're prespooled, but as soon as you let go of the brake, it just feels like the car keeps going, without that funny feeling in the gut, acceleration feeling. When you don't brake boost, you can really feel the car pickup and go as the turbos kick in.
So I'm wondering, how much of a difference this technique makes."
This is all I have found so far
-Andrew
"I've heard a lot about people brake boosting on the roll, so decided to practice it today, but it doesn't really feel much faster. When you're brake boosting, you're prespooled, but as soon as you let go of the brake, it just feels like the car keeps going, without that funny feeling in the gut, acceleration feeling. When you don't brake boost, you can really feel the car pickup and go as the turbos kick in.
So I'm wondering, how much of a difference this technique makes."
This is all I have found so far
-Andrew
#2
What you lookin' at?
Join Date: Aug 2002
Location: Kansas City
Posts: 566
Likes: 0
Received 0 Likes
on
0 Posts
I believe its where you excel. while braking and you brake so you can maintain speed and build boost while you are excelerating and maintaining the same speed.
#5
Birds can DRIFT YO...!!!!
i don't think it helps in 0-100 but from a roll wen u are racing someone, it probably helps u keep your speed with the other car and gives u instant boost instead of waiting for boost
#7
Lives on the Forum
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes
on
8 Posts
If you still have the stock twins, I fail to see how brake boosting is going to accomplish much of anything. Usually, this technique is used by cars with slower spooling turbos, where it can actually make a difference. The FD stock twin turbos spool so fast, especially from a "racing" rpm that brake boosting isn't going to help.
Trending Topics
#8
airplane apex seals
Join Date: Mar 2004
Location: either sunnyvale or san jose
Posts: 552
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Lukan
What is heel'n toe?
Last edited by seanfd3s; 05-01-05 at 01:13 PM.
#9
Potato Love
I disagree. I do toe toe without any aftermarket pedals and size 7 feet. I find it easier to do it this way than twisting my leg to the side. I'd like to add some pedals to make it easier. Haven't gotten around to it yet. Just my preference. Not trying to bust your *****, Sean.
#10
Lives on the Forum
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes
on
8 Posts
Most modern cars aren't really set up for the traditional heel-toe and it is usually easier to use the side of your foot. Either the traditional or sidestep technique is easier with one of the Widefoot pedals, either from Sleddriver or David Breslau.
#11
Super Snuggles
Originally Posted by rynberg
If you still have the stock twins, I fail to see how brake boosting is going to accomplish much of anything. Usually, this technique is used by cars with slower spooling turbos, where it can actually make a difference. The FD stock twin turbos spool so fast, especially from a "racing" rpm that brake boosting isn't going to help.
#13
Super Snuggles
Originally Posted by ulost2my7
what about people with non seq?
Either way, a downshift is going to result in more rapid acceleration that trying to brake boost.
#14
Junior Member
Thread Starter
Join Date: Mar 2005
Location: Melb- Aus
Posts: 33
Likes: 0
Received 0 Likes
on
0 Posts
THanks
Heel and toe is amazing, i cant believe I can slot the gear so easily in when I raise the revs with the heel.
What are the other little tricks you people have??!
Heel and toe is amazing, i cant believe I can slot the gear so easily in when I raise the revs with the heel.
What are the other little tricks you people have??!
#15
Moderator
iTrader: (7)
That's mostly it. I do heel-toe a little on the streets, but mostly it's useful on the track.
Another tip is to use the shifter with precision, rather than jamming it from gear to gear. That little bit of control in your shifting can help prevent blowing a gear or synchros. Double-clutching is also unnecessary, assuming you have enough skill to rev-match and you don't slam the shifter.
Before you ask, clutchless shifting is also a bad idea, and not faster.
Dave
Another tip is to use the shifter with precision, rather than jamming it from gear to gear. That little bit of control in your shifting can help prevent blowing a gear or synchros. Double-clutching is also unnecessary, assuming you have enough skill to rev-match and you don't slam the shifter.
Before you ask, clutchless shifting is also a bad idea, and not faster.
Dave
#17
airplane apex seals
Join Date: Mar 2004
Location: either sunnyvale or san jose
Posts: 552
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Larz
I disagree. I do toe toe without any aftermarket pedals and size 7 feet. I find it easier to do it this way than twisting my leg to the side. I'd like to add some pedals to make it easier. Haven't gotten around to it yet. Just my preference. Not trying to bust your *****, Sean.