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Compression ratio

Discussion in 'Engine Building' started by Vai, Jul 22, 2005.

  1. Vai

    Vai Junior Member

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    Hy all,

    Convers with all of you on this forum is new for me, so i hope i will ask the good question.

    I just want to know the aproximate compression ratio i have with this setup:

    Stock B18C1 Bottom with type R pistons and rods
    3 mm Cometic head gasket
    and B16 Head.

    I dont have a compressiometer, but i think i'm closer to 9.5 or 9.0 to 1.

    Every answers will be appreciate.
    Thanks all. :( :)
     
  2. B16RacerN2NR

    B16RacerN2NR Working Hard VIP

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    IMO, you are about 9.8-10.2. Just a wild guess.
     
  3. xj0hnx

    xj0hnx I wanna be sedated VIP

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    Somewhere in the low 9 range, depending on if you have USDM ITR pistons, or JDM.
     
  4. brian11to1

    brian11to1 Senior Member

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    IMO, using c-speed's site and USDM ITR pistons its at 10.1:1...
     
  5. xj0hnx

    xj0hnx I wanna be sedated VIP

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    Did you adjust for the head gasket? Using theirs I got around 10.1 till I change the HG to 3mm.
     
  6. Vai

    Vai Junior Member

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    The pistons is USDM. what year is, i don't know.
    Sure that, in N/A i will be closer to 10:1 (maybe a little bit more).
    But, i want to run force induction, that's why i swapped the head (B16A: bigger combustion chamber) and put a 3 mm cometic headgasket.

    I think i will try to buy a compressiometer and do the test myself.
    Maybe it's the best way to go.
    Thanks everybody FOR YOUR HELP. :) :)
     
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