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Building daily driver all motor

Discussion in 'Engine Building' started by AllMotorB18Civic, Mar 1, 2004.

  1. AllMotorB18Civic

    AllMotorB18Civic Junior Member

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    Whats the highest compression I can run with 91 octane in California with out having to retard my timing.
    I want to run CTR pistons but i dont know if the CR will be to high for dailly driving with 91 octane. If it is im going to run ITR pistons.
    Its going into a gsr block with a b16 head (not Milled).
     
  2. Kolumbo69

    Kolumbo69 Senior Member

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    IM almost positive cant be certain but if you use the search tool some has that same setup plus with good tuning you can run high compression at the very least you would just have to use octane booster otherwise i have no more knowledge that i can share
     
  3. B16

    B16 Super Moderator VIP

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    i'll be running 12.3:1 on 91 in my car, using toda pistons. enough fuel and good tuning you should be fine. probably won't pass smog that way though, lol. but if you want to just change out pistons to bump compression, just run JDM ITR pistons.
     
  4. AllMotorB18Civic

    AllMotorB18Civic Junior Member

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    Will my piston to valve clearance be good with my setup with CTR pistons? GSR block with B16 Head (not milled). I will be runing ITR cams until i pick up a set of skunk2 stage 2 cams. Will the clearance still be ok with the skunk2 cams?
    I will be runing duel valve springs, titanium retainers, and stainless steel valves.
     
  5. pills_PMD

    pills_PMD Super Moderator

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    clay the motor for clearance...

    but you should be fine with that
     
  6. JDMilan

    JDMilan Senior Member

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    for safetly sake, I would stay in the 12.0:1 and under.....
     
  7. B18C_NA

    B18C_NA Banned

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    CTR pistons in GSR block with B16 head should yield pretty fine with 91 octane. i'm runnin CTR pisonts in GSR block and Head, 91 plus octane booster. Runs fine, but i used a OEM 3 layer gasket. On the skunk2 stage2 cams, i highly recommend that you clay it and degree it.
     
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