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stock gsr motor with b16 pistons

Discussion in 'Engine Building' started by possessedimports, Feb 23, 2005.

  1. possessedimports

    possessedimports Member

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    i have a plain gsr motor andsome b16 pistons laying around in good condition. i wanted to know if i was to put them in will they work and how much compression will it raise me up to.
     
  2. formby

    formby learning in progress

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    you will get a higher CR ....i would do it...i used pr3 pistons in my lsv...but with the gsr you will get realy high cr...tune realy good....
    http://www.c-speedracing.com/howto/compcalc/compcalc.php
    this is the best CR calculator ive found
     
  3. possessedimports

    possessedimports Member

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    damn that calculator is beast!!!! :thumbsup: thanx man
     
  4. pissedoffsol

    pissedoffsol RETIRED

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    ls/b16 pistons do not fit gsr/itr/ctr rods without modification and vice versa.
     
  5. R.E.Developement

    R.E.Developement Import King of Irvington

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    and why wouldn't it fit? i know that gsr, itr, and ctr wont fit the ls or b16 rods due to the rod head size being bigger but i dont think he will have a problem puting them on since its the opposite. aftermarket pistons have plenty of room between the piston and the rod so what would be the problem?
     
  6. pissedoffsol

    pissedoffsol RETIRED

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    they flop around too much
     
  7. possessedimports

    possessedimports Member

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    so what will i have to do to make them work good?
     
  8. possessedimports

    possessedimports Member

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    nevamind im going for it. my boy thats doing the work said that ill have no problem
     
  9. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    :werd:

    Shouldn't be a problem at all.
     
  10. cws13

    cws13 Senior Member

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    11.9:1. Going to upgrade the cams? You'll need to to realize much out of that compression ratio.
     
  11. b18hatch9

    b18hatch9 Senior Member

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    i think its 11.4:1 , not 11.9:1
     
  12. cws13

    cws13 Senior Member

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    I've been reading compression ratios for a couple of days trying to pick out mine and if the sources I've read are correct the b16 pistons are going to offer the highest compression ratio besides the CTR's. I'm going off of the few who have done the math as the cspeed calc is supposedly off.
     
  13. GSRCRXsi

    GSRCRXsi Super Moderator Moderator VIP

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    it depends on which b16 pistons you use.

    pr3's will net you 11.374456157496324

    p30's will net you 11.59960326572453

    both on stock gsr motors with gsr head and stock headgasket. from c-speed's comp calculator
     
  14. b18hatch9

    b18hatch9 Senior Member

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    well, i'm thinking 11.4:1.

    i'm going to put some b16 pistons in a few weeks when my bearings are getting replaced. hope it makes a difference.
     
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