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    Author Topic: Vacuum  (Read 1001 times)

    Offline 4Cruizn

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    Vacuum
    « on: April 06, 2016 - 04:17:25 PM »
    What is the needed amount of vacuum to properly operate the braking system for a stock 440 with power brakes? :clueless:  I assume you measure this at an idle . . .
    « Last Edit: May 20, 2016 - 11:57:56 PM by 4Cruizn »
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    Offline HP_Cuda

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    Re: Vacuum
    « Reply #1 on: April 06, 2016 - 04:25:09 PM »

    12" and higher would be optimal, once you get into bigger cams and that number drops you need to either look at vacuum canisters to help boost that or go a different route.
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    Offline dfrazz

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    Re: Vacuum
    « Reply #2 on: April 06, 2016 - 05:06:41 PM »
    Do you have a dual diaphragm booster?

    If you don't have enough vacuum I would highly suggest going with hydraulic set up instead of a vacuum pump.  They are obnoxiously loud.
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    Offline 4Cruizn

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    Re: Vacuum
    « Reply #3 on: April 08, 2016 - 10:57:49 PM »
    Quote from: dfrazz on April 06, 2016 - 05:06:41 PM
    Do you have a dual diaphragm booster?

    If you don't have enough vacuum I would highly suggest going with hydraulic set up instead of a vacuum pump.  They are obnoxiously loud.

    Ok please explain?    :dunno:
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    Offline Chryco Psycho

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    Re: Vacuum
    « Reply #4 on: April 08, 2016 - 11:24:24 PM »
    Regular booster 12" diameter 3" thick
    Dual diaphragm 8 " diameter 6" thick
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    Offline cudabob496

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    Re: Vacuum
    « Reply #5 on: April 12, 2016 - 09:04:27 PM »
    I added an additional vacuum canister, because I was at 10 inches at idle
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