Author Topic: Additional Vacuum for Brake Booster  (Read 1347 times)

Offline dlrogers

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Additional Vacuum for Brake Booster
« on: May 09, 2006 - 01:55:40 AM »
Greetings Everyone
My cam setup doesn't permit enough vacuum to run the brake booster. There is an auxillary pump mounted under the hood that operates on a sensor...but the crazy thing is really noisy when it's running. What do you all do for vacuum with a worked cam? I had a Nissan ute on my farm with a vacuum pump on the back of the alternator whach worked well - I'm considering doing something like that.
Thanks
David
Bay of Islands, New Zealand




Offline ShelbyDogg

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Re: Additional Vacuum for Brake Booster
« Reply #1 on: May 09, 2006 - 08:08:12 AM »
1. You can hide a vacuum can somewhere to store vacuum so you don't need that pump.  2. you can convert to manual brakes.  3. If you don't mind the non-stock look, you can get a GM style power booster that runs off of your power steering pump pressure.  My 93 Suburban 3/4 Dually had this setup.  I also saw the same setup on the red Viper-engined Challenger Convert on last year's power tour.

Rob
Rob

3 E-bodies, Megasquirt-1v3.0, Edelbrock Pro-Flo-1, Holley C950, FAST EZ-EFI; say no to carbs...yes to throttle bodies

My Pace Car restoration thread:
http://www.cuda-challenger.com/cc/index.php?topic=44869.0


Offline dlrogers

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Re: Additional Vacuum for Brake Booster
« Reply #2 on: May 09, 2006 - 11:25:51 PM »
OK - good range of options thanks Rob
Cheers
David
Bay of Islands, New Zealand

Offline zerfetzen

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Re: Additional Vacuum for Brake Booster
« Reply #3 on: May 10, 2006 - 01:36:36 PM »
I'm going through the same thing, and am converting to manual brakes.  The whole process took about an hour or two, except for one little part.  Here's what I did a couple nights ago:

1. Unbolted the master cylinder from the brake booster.
2. Removed the brake booster (and found perfect factory mounting holes for manual all ready to go).
3. Mounted the master cylinder against the firewall.

Yesterday I ordered an adjustable brake push rod from Summit for $65.  This connects from the brake pedal to the master cylinder.  Once that arrives, the conversion's done, and I never, ever have to worry about vacuum again, will have less weight under the hood, and will be able to feel the road better.  I've never done this before, but wow it was easy.

I don't know if it helps or not, but thought I'd offer the suggestion.  Cheers.

Offline ShelbyDogg

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Re: Additional Vacuum for Brake Booster
« Reply #4 on: May 10, 2006 - 01:52:57 PM »
Zerf, Make sure that you use that rubber piece that locks your rod into the master cylinder. If you are using the old master cylinder, it won't have it.   I just got a rebuilt master cylinder at AutoZone for a 72 Disc Cuda for $16.99. We'd hate to hear that your 2nd car got wrecked.

Rob
Rob

3 E-bodies, Megasquirt-1v3.0, Edelbrock Pro-Flo-1, Holley C950, FAST EZ-EFI; say no to carbs...yes to throttle bodies

My Pace Car restoration thread:
http://www.cuda-challenger.com/cc/index.php?topic=44869.0


Offline zerfetzen

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Re: Additional Vacuum for Brake Booster
« Reply #5 on: May 10, 2006 - 03:08:03 PM »
Thanks for the catch, Shelbydogg!

Offline dlrogers

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Re: Additional Vacuum for Brake Booster
« Reply #6 on: May 11, 2006 - 01:06:03 AM »
Awesome - thanks heaps
David
Bay of Islands, New Zealand