Boosted Engine, Brake Boost Not working?

[FinkenS14]

OK, so ever since I swapped in my RB, I noticed that whenever I get outta boost, and go right to the brake, and brakes dont have any vacuum, like the pedal is stupid hard. Its also a PITA when at the track, and trying to do a burnout, and im literally ahving to stand on the brakes to keep the car from rolling forward.

Any way to fix this so that boost doesnt emss with the booster? It definately gets dangerous at times...

[OutToWinPAHC]

I'm guessing you don't have a check valve on you main vacuum line to the booster? Something you need to have if your boosted.

[FinkenS14]

Is that it? Hmmmm

Where can I get one of those

[Justin35ll]

I've never had this problem and I'm boosted and using the KA vacuum line for the brake booster and the original booster.Make sure the booster is still good/line doesn't have a leak

[hypcodiiihop]

hahaha



junkyard factory boosted cars are a cheap option, or just ebay it.

[OutToWinPAHC]

Is that it? Hmmmm

Where can I get one of those

Auto parts stores have them. When boosting they close and let the vacuum remain in the booster and the boost PSI to stay out.

Brake boosters are designed to assist under vacuum, boosting one is the opposite of power brakes, it would make it feed really hard.

One way valve

[Justin35ll]

oh so thats what the valve is in the line, i just thought it was a connector lol