Electric vacume pump

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tekslk

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Just wondering if anyone has used one, How noisy are they, where did you mount it?
 
Yeup. They're noisy. Somewhat effective. Noisy. Kind of a power drain if you got other stuff going on like electric fans. Noisy.

What did you need to know? :D
 
Where would you mount it? There not running all the time, but probably when Im going slow at cruises and shows.
 
we installed both the ones from summit, the lower operating vacuum one first and then the higher one. They are fairly noisy but it you rubber mount it and have any kind of motor/exhaust it covers it off, that said you'll never get used to the random vibration of it cycling.

Was it worth it? if a big cam and soft brakes then yes, if its just to hold you over until a brake swap just get used to the heavy pedal and remove/break the valve in the booster.
 
we installed both the ones from summit, the lower operating vacuum one first and then the higher one. They are fairly noisy but it you rubber mount it and have any kind of motor/exhaust it covers it off, that said you'll never get used to the random vibration of it cycling.

Was it worth it? if a big cam and soft brakes then yes, if its just to hold you over until a brake swap just get used to the heavy pedal and remove/break the valve in the booster.

Not the best advice. The pedal geometry between a power brake car and a manual brake car are different. Very different. Doing this compromises your safety and the safety of others around you.
 
Not the best advice. The pedal geometry between a power brake car and a manual brake car are different. Very different. Doing this compromises your safety and the safety of others around you.

just a hard pedal... caused by bore size and leverage, if you can push the pedal the car will stop. If you have a bad leg or a weak leg then yea, probably not the best idea but if your healthy and without issue you can push it. At the end of the stroke the same pressure at the wheels is being applied.

I can lock up all 4 on the swinger with factory disc/drum and un-powered power brakes (wouldn't be that way if they will made a check valve with a 3/4" nipple for the 13/16 seal...)
 
just a hard pedal... caused by bore size and leverage, if you can push the pedal the car will stop. If you have a bad leg or a weak leg then yea, probably not the best idea but if your healthy and without issue you can push it. At the end of the stroke the same pressure at the wheels is being applied.

I can lock up all 4 on the swinger with factory disc/drum and un-powered power brakes (wouldn't be that way if they will made a check valve with a 3/4" nipple for the 13/16 seal...)

Um, no. Pedal ratio is different between manual and power brakes and master bore sizes are usually different also. I now refer you to Pascal's Law on fluid dynamics.

I agreed that you can stop a power brake car with out power. It is not a safe thing to do or recommend to someone that they disable their booster and drive their car.

As others have said, convert to a manual brake master cylinder, then go drive the wheels off of it. I did and even my wife can drive the car with no problems.

Or,

Take the kid's advice and join the manly thigh club. :D
 
Um, no. Pedal ratio is different between manual and power brakes and master bore sizes are usually different also. I now refer you to Pascal's Law on fluid dynamics.

I agreed that you can stop a power brake car with out power. It is not a safe thing to do or recommend to someone that they disable their booster and drive their car.

As others have said, convert to a manual brake master cylinder, then go drive the wheels off of it. I did and even my wife can drive the car with no problems.

Or,

Take the kid's advice and join the manly thigh club. :D

i must have mis-relayed that pedal ratio and bore size were different, my bad...

and i know im stuck in this spot depending on if i do rear disc or not, headers or not, power or not so thats the only reason im driving that way, and they dont make the check valve
 
I think some people are using the used pump from a saab or volvo with success. One version or the other has a built in vacuum pressure regulator so, self regulating.
 
I think some people are using the used pump from a saab or volvo with success. One version or the other has a built in vacuum pressure regulator so, self regulating.

All of the units that I have installed had pressure switches on them. They would get to a predetermined level and shut off the pump until needed again.

There are alternatives, such as hydroboost or an electric brake booster.
 
I used the comp motor set up it works quite well and now even if I lost my engine I still have power brakes.
 
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