Another cooling question.
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Another cooling question.

  1. #1
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    Default Another cooling question.

    I have a 455 olds. Single plane intake. And zoomie headers. Is it going to hurt the motor to run water in from the lake through the timing cover and thermostat and then out through the back of the intake ? I have looked at several different posts but I am more of a visual guy. I won't have the ability to run the water through the exhaust for pre heat

    Thanks

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    Senior Member SoldHondaBoughtHondo's Avatar
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    Zoomies are all basackwards for a 455...out the back of the manifold? I ran a drilled t-stat in my olds for a while to build some heat in the motor, olds has an issue with uneven cylinder cooling if they are run to cold. Mondelo head gaskets and it will run 150-160 all day without t-stat and a set of bassets will get ya more power.
    Last edited by SoldHondaBoughtHondo; 04-07-2014 at 01:00 PM.
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    Senior Member 67weiman's Avatar
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    I wouldn't advise dumping all the water out through the back of the intake. You are saying from the rear ports on an intake with four corner water bosses, correct? The motor was never designed to flow water in that manner and you will create air pocket and hot spot around the front cylinders, especially in the head.

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    What would you guys recommend as the easiest way to route water without header water. Pics will help me a lot

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    Senior Member BGMAN's Avatar
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    Keep it simple. Put the water in the timing cover (where automotive pump would bolt on) and take the water out of the thermostat housing and dump overboard. I would suggest regulating the water inlet pressure some way or another. Too much psi in the motor and you may have gasket sealing issues.

  8. #6
    tintingsandiego krusn56's Avatar
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    Or crack around valve...
    Made In The Shade

    Custom Window Tinting

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    What do you guys think is the best way to regulate water pressure coming into the motor?

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    Other than a regulator you would need a valve between the pump and the engine. Start with it about 1/2 open. Forget the zoomies. ANYTHING would be better than them with your combo.
    Last edited by Richard Till; 04-08-2014 at 01:38 AM.

  11. #9
    Senior Member BGMAN's Avatar
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    Quote Originally Posted by stangman95 View Post
    What do you guys think is the best way to regulate water pressure coming into the motor?
    You can play the Home Depot gate valve game, or you can get a pressure regulator that goes inline with the water from the jet to the motor. Just about every performance marine hardware company carries them (Rex, CP, JBP, etc..). By the time you install a dedicated overboard dump, hose, clamps and all you are looking at about $150.

  12. #10
    Senior Member BGMAN's Avatar
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    Oh yeah, and X3 on dumping the zoomies. I don't think I have ever seen a Olds/Jet combo with zoomies.

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    I know the zoomie is a horrible idea. Problem is I'm on a crazy tight budget and i have the parts to build them. I will get a set of full length over the back headers eventually. The zoomie are more of a get it started thing.

  14. #12
    Senior Member SoldHondaBoughtHondo's Avatar
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    Quote Originally Posted by BGMAN View Post
    Oh yeah, and X3 on dumping the zoomies. I don't think I have ever seen a Olds/Jet combo with zoomies.
    Probably never seen an olds in a v-drive hydro either.
    "A liberal paradise would be a place where everybody has
    guaranteed employment, free comprehensive healthcare, free
    education, free food, free housing, free clothing, free
    utilities, and only law enforcement has guns. And believe it or
    not, such a place does, indeed, exist: It's called prison."

    Sheriff Joe Arpaio
    Maricopa County Sheriff's Office

  15. #13
    Senior Member BGMAN's Avatar
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    Quote Originally Posted by SoldHondaBoughtHondo View Post
    Probably never seen an olds in a v-drive hydro either.
    Nope

    Unless it's a Alan Johnson Olds. then

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