# Discussion: Brake Boosting **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [September 20, 2005, 8:49am UTC](https://forums.speedlife.net/t/discussion-brake-boosting/2537 "2005-09-20T08:49:44Z")\ **Posts on this page:** 1\ **Showing post:** 11
**Author:** ![sureshot](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sureshot/32/7578_2.png) [@sureshot](https://forums.speedlife.net/u/sureshot)\ **Post date:** [September 20, 2005, 10:08am UTC](https://forums.speedlife.net/t/discussion-brake-boosting/2537/11 "2005-09-20T10:08:03Z")
> [@azndc5er](#): > > When you are matching speeds with the other car right before you go, you might be at 20 percent throttle, and building little boost. Woudln’t you want to be closer to wot so that your turbo is really working for ya as you begin to race? It’s similar to left-foot braking, keeping your rev’s up but slowing your car down at the same time, with the brakes, so that an sti who is under full load doesn’t pull an evo starting at partial throttle by a bunch of car lengths 🙂 😉 if you and i pace each other at 40mph for 1/8th of a mile, our turbos will no longer be spinning because they are no longer necessary to attain the speed we wanted. basically the turbo is helping the engine get to a speed faster than it could on its own. so once youve attained the speed, the turbo doesnt spool. if you are going from a roll and pace without brake boosting, your turbo needs to spool basically from low psi. this is why its advantageous to brakeboost, because you are consistently spooling, and as soon as you let off the brake the turbo is already at 50-75% of its max psi. i’m talking about both bb’ing from a stop and a roll btw --- _[View the full topic](https://forums.speedlife.net/t/discussion-brake-boosting/2537)._