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How much boost?

This is a discussion on How much boost? within the Forced Induction forums, part of the Performance category; Anyone know how much boost a bone stock 7.4 (90) can handle? also how much is a cheep kit cost? ...

  1. #1
    Ride low stay High m grasso's Avatar
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    How much boost?


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    Anyone know how much boost a bone stock 7.4 (90) can handle? also how much is a cheep kit cost? I cant afford anything now but i wanna start saving, the truck is getting the engine in a few weeks. its a 88 c1500. also anyone know what kind of 1/4 times id be pulling N/A or SC? thanks.

    1988 chevy c1500 stepside 454 bigblock th400 Bad to the F'in Bone!

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    Re: How much boost?

    Whats the compression ratio also what are yu running for an injection system.
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    Ride low stay High m grasso's Avatar
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    Re: How much boost?

    what ever a bone stock 1990 7.4 has for heads and compreshon its a stock tbi setup out of a 3500

    1988 chevy c1500 stepside 454 bigblock th400 Bad to the F'in Bone!

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    Registered User kkustomz's Avatar
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    Re: How much boost?

    Your cheapest is going to be a b&m 144 and you might get 5-8 psi

  5. #5
    Ride low stay High m grasso's Avatar
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    Re: How much boost?

    cool, im only lookin for around 6lbs how much do the kits run for

    1988 chevy c1500 stepside 454 bigblock th400 Bad to the F'in Bone!

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