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ls/vtec bosted

Discussion in 'Forced Induction' started by competitiveaudioman, Aug 5, 2007.

  1. competitiveaudioman

    competitiveaudioman New Member

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    im building a b18 ls/vtec with p30 pistons and stock bottom end. i was wondering what it would take to run 15 to 20 psi boost on that bottom end? h beam rods, sleeving, ect. i know thats 11.2.1 compresion but thats doable right? this is an everyday driver
     
  2. SlushboxTeggy

    SlushboxTeggy It's only stupid if it doesn't work VIP

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    If this is your everyday driver I would say get a dual stage boost controller. That compression is a little high as well, but like you said, doable. But the controller would allow you to run like 10 psi around town and flip a switch for more when you need it.

    And yea, you need to build the bottom end as well. What kind of turbo were you thinking of?
     
  3. competitiveaudioman

    competitiveaudioman New Member

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    i dont know much about turbos. what would you recomend?
     
  4. eg6sir

    eg6sir Supa Mod Moderator VIP

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    11.2:1 compression is too high for boost unless you have an excellent tuner, when i say excellent, i mean .. best of the best .. or else kaboom! and how is a b18 block with p30 pistons a stock bottom end?
     
  5. competitiveaudioman

    competitiveaudioman New Member

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    well when i said stock i ment oem and thats all "stock" when it comes to strength compard to aftermarket
     
  6. eg6sir

    eg6sir Supa Mod Moderator VIP

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    well, anyways.. 11.2:1 is too high for boost unless you have a very very very experienced tuner..
     
  7. competitiveaudioman

    competitiveaudioman New Member

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    ok so say i went back to stock pistons and bottom end. what psi am i looking at for the stock bottom end but just rebuilt?
     
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