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Thread: Electric vac pump?

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    Bodger

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    Electric vac pump?

    Can someone recommend an electric vac pump for brake servo.Ive installed a brake servo on my pinto engined mk 1 and its not making enough vacuum.From what I read this is often a problem on modified engines.thanks

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    Re: Electric vac pump?

    Quote Originally Posted by gingerdave View Post
    Can someone recommend an electric vac pump for brake servo.Ive installed a brake servo on my pinto engined mk 1 and its not making enough vacuum.From what I read this is often a problem on modified engines.thanks
    its not normally an issue on pintos, unless your running a mental race cam, what cam? what induction?

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    Bodger

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    Re: Electric vac pump?

    Bp300

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    Bodger

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    Re: Electric vac pump?

    45dcoes

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    Re: Electric vac pump?

    how many manifold runners are you taking the servo vac from? i suspect your only using one, which is normally good enough, but on that cam i would expect you would need 2

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    Bodger

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    Re: Electric vac pump?

    You’re right just one.

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    Re: Electric vac pump?

    It seems there are huge numbers of modern cars with vacuum pumps now.

    Many...Mercedes, Volvo, Jaguar, VW Group etc all use this same pump. Oddly some sellers on ebay call it an aircon pump.....sometimes with cheaper prices so can be worth searching for dumb sellers.

    Some are ecu controlled, some...who knows. Volvo seem to control some of theirs with a small 3 way tee piece with a vac switch built in. So if there isnt enough vacuum from the engine side, it will close a set of contacts so you can enable the pump via a relay.

    https://www.ebay.co.uk/itm/2002-MERC....c100706.m4781

    https://www.ebay.co.uk/itm/VOLVO-S60...0AAOSwaC9aXoHC

    And the switch, there are various shapes of these. Obviously you need to use a relay.

    https://www.ebay.co.uk/itm/VOLVO-S60...0AAOSwKQ9aE12a
    9.85 @ 145mph 202mph standing mile

    https://www.youtube.com/watch?v=Ss_c7fML3rw

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