allright im a bit tipsy and i cant recall what i learned in college regarding brake boosters on n/a vs fi cars. i went to school for auto mechanics and i have worked as a mechanic for quite some time, but im now getting into depth with fi setups over N/A . I know there was a difference from what my teacher told me, like oem turbo system brake booster vs oem N/A brake booster.. Anyone able to shed light on this would be great. Sorry if im an incoherent drunk.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CruiserDan &raquo;</TD></TR><TR><TD CLASS="quote"> Sorry if im an incoherent drunk. </TD></TR></TABLE>

LOL!!!

what you been drink'n?!

 

Well the brake booster is powered off vaccumn, so i would a assume a forced inductions brake booster would be more powerfull due to more pressure in the manifold creating more vaccumn

Just my guess

 

still drinking and its Mr Jack Daniels its quarter of 1 my wife is passed out and im pounding away at this half gallon she bitched at me for like 45 min about buying even tho it was on sale i swear there is a different type of setup used on fi cars from the factory as opposed to vaccum boosted . i knopw theres something different but ANyone know what it is. once again sorry for being incoherent / dumb/ drunk

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by standbackimapro &raquo;</TD></TR><TR><TD CLASS="quote">Well the brake booster is powered off vaccumn, so i would a assume a forced inductions brake booster would be more powerfull due to more pressure in the manifold creating more vaccumn

Just my guess</TD></TR></TABLE>

Have you been drinking too? What you said doesn't make a lick of sense.

To the OP,
Brake boosters are protected with one-way valves. Then there is vacuum in the intake manifold the one-way valve is open and a vacuum is created in the brake booster, thereby assisting in the braking process.

The idea is that you won't be pressing the accelerator while braking. If you do, you will not have any assist, since the intake manifold will have positive boost or atmospheric pressure in an N/A car.

There is no change in operation in either N/A or F/I cars. Both still create vacuum (unless you have super duper large lopey cams for N/A).

 

im trying to remember what i "learned" in schoo l from my professor. im too drunk to comprehend anything so tomorrow i will go through my brakes class text to see if i make ANY sence at all, IDK i thought from what i remembered there was a difference in na vs fi brake boosters, leaning towards n/a brake boosters not being as efficient as a fi booster on a fi system. idk maybey im crazy and im making this up? time to call some previous classmates. tomorrow Hopefully will shed some light. Once again sorry for lack of being coherent im getting worse by the minute. I half passed out on the front porch smokin a cig. haha any more insight?

 

also thanks for everyone's input i appreciate it !

 

im pretty sure 98% of cars on honda-tech are running oem brake boosters with there F/I Setups and i havent heard of anyone crashing from it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by quicksilver1689 &raquo;</TD></TR><TR><TD CLASS="quote">im pretty sure 98% of cars on honda-tech are running oem brake boosters with there F/I Setups and i havent heard of anyone crashing from it.</TD></TR></TABLE>

&lt;&lt;&lt;&lt; def still have brake booster

just make sure you use the check valve

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by standbackimapro &raquo;</TD></TR><TR><TD CLASS="quote">Well the brake booster is powered off vaccumn, so i would a assume a forced inductions brake booster would be more powerfull due to more pressure in the manifold creating more vaccumn

Just my guess</TD></TR></TABLE>
wtf lol

 

why has this question been asked 80 hundred times in the past month?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by standbackimapro &raquo;</TD></TR><TR><TD CLASS="quote">Well the brake booster is powered off vaccumn, so i would a assume a forced inductions brake booster would be more powerfull due to more pressure in the manifold creating more vaccumn

Just my guess</TD></TR></TABLE>

wrong...
wow
a forced inductions brake booster would be more powerfull due to more pressure in the manifold creating more vacuum.

actually under w.o.t. you have no power assist, the same is true with boost.
thats why there is a check valve in line. to keep from ripping the diaphragm.

some either use a vacuum canister to hold vacuum for assist or like the grand nationals, they use an accumulator for a hydraulically

 

YES YOU GOT IT im relatively sober and this is what i needed 2 hear what i had on the tip of my toung but couldnt spit out.

 

Brake boosters take vacuum from the intake manifold. Regardless of what you have on before the throttle body, you will still need XX Hg" of vacuum to maintain IDLE.

As far as I've ever been able to tell, turbo cars DO NO BOOST CONSTANLY, as well as run a recirculating/blow-off valve, which means the intake manifold never sees boost when your foot is on the brake pedal. This is obviously for using the brakes AS INTENDED - to stop the car - not to 'brake boost' to build boost while moving.

The only reason an OEM brake booster would be larger on the Turbo version of a car vs the non-turbo version - you want bigger brakes on a faster car in case **** happens, and larger caliper pistons require a larger brake booster.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MADMAX_zero &raquo;</TD></TR><TR><TD CLASS="quote">The idea is that you won't be pressing the accelerator while braking.</TD></TR></TABLE>

 

Why are you quoting me HiProfile?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HiProfile &raquo;</TD></TR><TR><TD CLASS="quote">Brake boosters take vacuum from the intake manifold. Regardless of what you have on before the throttle body, you will still need XX Hg" of vacuum to maintain IDLE.

As far as I've ever been able to tell, turbo cars DO NO BOOST CONSTANLY, as well as run a recirculating/blow-off valve, which means the intake manifold never sees boost when your foot is on the brake pedal. This is obviously for using the brakes AS INTENDED - to stop the car - not to 'brake boost' to build boost while moving.

The only reason an OEM brake booster would be larger on the Turbo version of a car vs the non-turbo version - you want bigger brakes on a faster car in case **** happens, and larger caliper pistons require a larger brake booster.


</TD></TR></TABLE>

to comment on the bold statement,
i think gm did it that way to let ptople power brake the gn, but they did put a vac assist on the 89 turbo t/a
the powermaster on the gn is great til they break, then they are fun to fix.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mikey3000 &raquo;</TD></TR><TR><TD CLASS="quote">why has this question been asked 80 hundred times in the past month?</TD></TR></TABLE>

the brake light effect ? why are there traffic jams on roads with no lights or stop signs ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DaveF &raquo;</TD></TR><TR><TD CLASS="quote">

the brake light effect ? why are there traffic jams on roads with no lights or stop signs ? </TD></TR></TABLE>

why ask why
try bud dry

 

dont get mad, get glad !!

to the O.P. -- isnt that symbol in your avatar for Brand X bmx products ?? its been awhile... but if my memory serves me correct....

 

yeah man F-It bike co. Robbie morales started it with help from S&M bikes they make good frames and other parts. I used to be way into riding sponsored by a few companies on their flow teams , but i tore my acl and i havent really ridden much in the last few years. Good eye.