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Just noticed something...

Discussion in 'General Tech and Maintenance' started by jamesA, Jul 6, 2004.

  1. jamesA

    jamesA Well known pissed off telephone guy VIP

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    I'm kinda confused, i dunno. I was just looking at the engine reference section and I noticed something...

    B16A 1595 168@7800 116@7300 10.4:1 81 77.4 dohc yes 2 1996-2000 Civic VTi
    B16A2 1595 160@7600 111@7000 10.4:1 81 77.4 dohc yes 2 1999-2000 Civic Si

    If the bore/stroke/displacement are the same, how are the power levels different even if only by that 8 hp/5 ft lbs? Would it be because the VTi has (I'm assuming) a slightly higher lift vtec lobe on it's camshafts? :unsure:
     
  2. NotUrAverage_Si

    NotUrAverage_Si Senior Member

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    piston dome size is a little different.

    and yeah vtecsir1, you're right the compression ratio is a little different also which is most likely created by the difference in the dome size of the pistons.
     
  3. vtecsir1

    vtecsir1 Senior Member

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  4. jamesA

    jamesA Well known pissed off telephone guy VIP

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    so it is 10.2:1 compression on the a2...? <_<
     
  5. NotUrAverage_Si

    NotUrAverage_Si Senior Member

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    yup.
     
  6. xj0hnx

    xj0hnx I wanna be sedated VIP

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  7. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    isnt the cam profile slightly different as well??
     
  8. jamesA

    jamesA Well known pissed off telephone guy VIP

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    that's what I was asking. :)
     
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