beefystud

heres a quote i read in a magazine, is this true? can any one explain further?


"ever wonder why the brakes dont work well on your recently turbochardged car ? when adding a supercharger or turbocharger to a naturally aspirated vehicle, a lack of vacuum can severely reduce brake pressure"

King Tut

While a lack of vacuum can reduce brake pressure due to the vacuum brake booster, I don't see why adding a turbocharger or a supercharger will reduce vacuum unless you create a vacuum leak.

illestrolla

Was this an April fools edition?



This is bad information if you ask me. This is implying the booster is depleted AND you're on the gas + brakes at the same time? Who the hell does that?!?!?!? The second you're off throttle you're back in vacuum and have brake assist.

beefystud

its was an advert in the latest issue of DSPORT for this http://www.forgemotorsport.co.uk/One...uct--1304.html

King Tut

Our brake booster line has a check valve in it already.

RacerXI

If the check valve was removed, lack of pressure could be an issue.

hybrdthry911

Excluding brake boosting....Who uses the brakes while they are WOT?

99SH

Serious question - why would a NA car have a check-valve to the brake booster?

I know we do, but do all NA cars?

hybrdthry911

My guess would be to maintain the vacuum even when WOT, if there was no check valve it would lose the vacuum at WOT.

cleenyc99

most n/a cars don't have a check valve. shocked to lean we do. maybe we do because our VE is high and revs to 8k so there could be a chance the s2k makes very little vacuum at WOT on an n/a car. with a turbo car. when making boost the engine has no vacuum (it has psi) to assist with the brakes. so the check valve allows the booster to retain vacuum while boosting. so when you let off and push the brakes the car stops. if you remove this valve you will have a very hard pedal when driving. car wont want 2 stop. I've added turbo's to other cars and had this problem