Just for fun imagine 2 cars traveling at the same rate of speed. One is brake boosting and one is not. In lamans terms one is sitting at 20-25-35 psi whatever he wishes and the other is in vacuum. If they both take off at the same time, the one that is brake boosting is already at full boost while the other car will still have to spool up giving the advantage to the brake booster.

While proper setups and good tunes are crucial, brake boosting will benefit.

Think of brake boosting as the equivalent to a supercharged cars throttle response. It will reduce or completely get rid of turbo lag

 

e-brake slide is a must, you are wrong on that

 

I thoroughly enjoy Rob's youtube video on how to make U-turns

 

Unless you are in the right gear which you don't have to wait until you boost the car up ,and go , down shift and you simply just go.
You need a boost at low rpm. Specially on the stock or close turbo you don't have anything to worth for waiting at high rpm.

Unless you are running a huge turbo. Which spools on top, and I hate those turbos even though they make amazing hp on dyno. And they good for drag racing.

 

this one ?

 

Yep

Now if only I could get away with that on the streets...

 

no you cant. Sometimes even at hill climbs the organizers tell you to do a U turn instead...

here is another one for U

 

Man im to scared to do what Rob does lol

 

Say I have my boost controller set for 30 psi and the car next to me set to 30 psi. I brake boost to 25 psi and he does not. You can't tell me that he will be at 30 psi before I get to 30 psi regardless of gearing.

Brake boosting in its simplest form is a faster way to get to full boost while starting from a dedicated speed

 

rob are you using the factory handbrake or a push hydraulic hand brake?

 

its hydraulic. The Tennessee rally video is still oem set up.

 

thank you. that hydraulic appears to work very well.

 

you missing the point by a mile. I am not talking about who hits the highest boos faster. Sure you will be at a highest possible boost but that will be as fast as the right gear right rpm?

Example just for argument, if you roll in 4th at 50 mph and you do brake boosting and hit a high boost 30 faster then let say me, who is in 3rd gear at 50 mph. no brake boosting just hovering around 5000 rpm you think you will be faster in a race?
( I am not sure about the rpm, and speed relation here so I think that is off ,but I think you get the idea)

 

Oooh street racing on the freeways I see!!

People still do that?


EDIT: The tennessee video is BOSS.. and that's the stock e-brake?!? Also You say its OK to do that with the car but what happens with the AWD system when you do? In the STi when you pull the E-brake it disengages the lock on the center diff which is why it is safe to do on it instead of the WRX which is a basic viscous center that fries easily.

 

Not I, sir. My 11 can't do it, so I have no reason to try