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Quiet vacuum pump for big cam motors with power brakes.

Started by Roadman, February 12, 2017, 02:45:32 PM

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Cuda Cody

Quiet is the hard part to find in one of those... most I've heard are pretty noisy.   Someone was just looking for one of those.   :huh:

usraptor

Don't know yet, but I've got a feeling I'm gonna need one of these when I get my 'Cuda on the road. I didn't see a price.  Anybody know what it costs?


cataclysm80

So how big does your cam get to be before you need one of these?
How do you know if you need one?

Cuda Cody

Upper teens is good.  12" of vacuum seems to the numbers that you want to stay above.  This guy would know for sure...

http://www.boosterdeweyexchange.com/

I've had him build a few boosters and he's very helpful.  He's about 15 minutes from me if anyone needs help with anything.

Quote from: cataclysm80 on February 12, 2017, 08:51:04 PM
So how big does your cam get to be before you need one of these?
How do you know if you need one?

303 Mopar

#5
I had a vacuum pump in my '71 Challenger with a 408 stroker that only pulled 9" of vacuum.  The good news was the vacuum pump was so loud I couldn't hear the fuel pump!   :drunk:

I would suggest anyone needing one of these seriously consider hydraulic booster.

cataclysm80



JS29

Quote from: cataclysm80 on February 13, 2017, 10:09:24 AM
We all have hydraulic brakes, since about 1939.
I think frazz meant to say Hydraulic booster.

cataclysm80

Quote from: JS29 on February 13, 2017, 10:14:13 AM
I think frazz meant to say Hydraulic booster.

That's a tech article I'd like to see.
I haven't seen one of those on an E body yet.

JS29


303 Mopar

Quote from: cataclysm80 on February 13, 2017, 10:16:48 AM
Quote from: JS29 on February 13, 2017, 10:14:13 AM
I think frazz meant to say Hydraulic booster.

That's a tech article I'd like to see.
I haven't seen one of those on an E body yet.
Quote from: JS29 on February 13, 2017, 10:22:50 AM
Do they make A hydaboost set up?   :dunno:
Quote from: JS29 on February 13, 2017, 10:14:13 AM
Quote from: cataclysm80 on February 13, 2017, 10:09:24 AM
We all have hydraulic brakes, since about 1939.
I think frazz meant to say Hydraulic booster.

Yes, sorry for the typo I corrected it.  This is the set up I was referring to.... http://www.hydratechbraking.com/Mopar_E_Body.html


HP_Cuda


Oh it's only $589 bucks:
http://www.mpbrakes.com/accessories/vacuum-pump-kits/electric-vacuum-pump-kit-ac9001k

and has a bunch of caveots.

Don't mount near heat
Don't mount where any water can splash on it
But it should last longer than your car.

:huh:
1970 Cuda Yellow 440 4 speed (Sold)
1970 Cuda clone 440 4 speed FJ5
1975 Dodge Power Wagon W200

cataclysm80

Quote from: 303 Mopar on February 13, 2017, 11:01:08 AM
Yes, sorry for the typo I corrected it.  This is the set up I was referring to.... http://www.hydratechbraking.com/Mopar_E_Body.html

Wow, neat!  I hadn't seen that before.

61K T/A

Might want to call Dr. Diff. He sells the pumps too. He suggested to mount it in the upper fender well when I spoke to him last.

HP_Cuda


I may have to go this direction but would like to mount it in the engine bay somewhere and not worry about longevity issues.

:lurking:
1970 Cuda Yellow 440 4 speed (Sold)
1970 Cuda clone 440 4 speed FJ5
1975 Dodge Power Wagon W200