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B16a Sirii Piston

Discussion in 'General Tech and Maintenance' started by D See 2, Apr 24, 2003.

  1. D See 2

    D See 2 Senior Member

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    are the b16a sirII pistons higher domed than the JDM b16a first gen pistons? so in other words, why the 8 hp difference...
     
  2. B16

    B16 Super Moderator VIP

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    i know the cams are different, the 1st gen b16 cams are the least aggressive of the bseries vtec cams, not sure about the pistons though, i think those are the same because the CR is the same.
     
  3. xj0hnx

    xj0hnx I wanna be sedated VIP

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    The SiR is 10.2:1 and the SiR(II) is 10.4:1,but the ones here in Germany are rated at 160 even the 92-95's :huh:
     
  4. B16

    B16 Super Moderator VIP

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    ah, all i could find in the reference section were the ones with 10.4
    EDIT:
    nevermind, i was looking in the wrong place, i found it :p
     
  5. D See 2

    D See 2 Senior Member

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    but different cams cant affect compression so the pistons have to be different.
     
  6. pills_PMD

    pills_PMD Super Moderator

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    i think the pistons are different.
     
  7. B16

    B16 Super Moderator VIP

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    yes, i stood corrected on my last post
     
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