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B16 bottom end build.

Discussion in 'Engine Building' started by theB16tegguy, Jul 28, 2004.

  1. theB16tegguy

    theB16tegguy Senior Member

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    I was thinking that I would stroke it but seing as the cheapest kit i could find was 1700$ I'm kinda rethinking this. what is the max bore I can go with on a stock block. What rod/piston combo should I use. I'm open for many ideas. I'm not in a hurry because this is a project but i would like to at least get a starting point.Thanks ;)
     
  2. MikeBergy

    MikeBergy Blah blah blah....

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    On a stock unsleeved block, I wouldn't go over 82mm without sleeving it. If it is just a spare block, bore it to 81.5mm and buy some high compression pistons and some cams and tuning. If you wanna go big, sleeve it, and bore to ~85mm, you'll get some good numbers with that.
     
  3. theB16tegguy

    theB16tegguy Senior Member

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    ok, I have ITR valvetrain in my B16 right now, that valvetrain can easily handle stage 2 cams, correct? and if I buy a set of CTR pistons will the piston to valve clearence be ok to say 9k rpm's
     
  4. JDMilan

    JDMilan Senior Member

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    blah, sell it and buy an LS bottom and work from that.
     
  5. theB16tegguy

    theB16tegguy Senior Member

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    maybe........, i'm getting it for 100$ comes with crank rods and pistons, it just seems like too good of a deal to pass up.
     
  6. B16

    B16 Super Moderator VIP

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    no
     
  7. theB16tegguy

    theB16tegguy Senior Member

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    mind telling me why instead of being as bleak as possible?
     
  8. beerbongskickass

    beerbongskickass Senior Member

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    You want to stay N/A or have you thought about a turbo? Why don't you just boost it and not worry about building the bottom end. You could probably get a reliable 300whp with a good turbo setup. Just make sure you have good fuel management and tune it really well.
     
  9. theB16tegguy

    theB16tegguy Senior Member

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    true but if I did i'd still do arebuild at the least, ex: new rings, bearings, oilpump water pump, timing belt, and head gasket. and probably shot peen the rods.
     
  10. B16

    B16 Super Moderator VIP

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    the lift would be too great for those springs. you run into coil bind
     
  11. theB16tegguy

    theB16tegguy Senior Member

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    can anyone give me a second opinion on this? I've never heard of this and as far as I know, many people run stage 2 in there ITR's ......... but if I cant then I can't, which would suck. I thought stage 2's were generally only a tad bit better then type R cams themselves? I dunno,.....
     
  12. jamesA

    jamesA Well known pissed off telephone guy VIP

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    even skunk2 recommends upgrading the valve train when using their cams. People said you don't need the valves but you need the springs/retainers and whatnot.
     
  13. JDMilan

    JDMilan Senior Member

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    get ITR inner/outer springs for the intake side and move your b16 intake springs to the exhaust side..
     
  14. B16

    B16 Super Moderator VIP

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    for skunk2 stage2 cams? i definately wouldnt..
     
  15. JDMilan

    JDMilan Senior Member

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    nah, not for the SS2's for ITR's...
     
  16. 97CTR

    97CTR Senior Member

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    As B16 said you will run into coil bind with s2s2's and an ITR valvetrain. The ITR valvetrain will not support those high lift cams.
     
  17. pissedoffsol

    pissedoffsol RETIRED

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    hi :lol:

    2nd opinion granted
     
  18. theB16tegguy

    theB16tegguy Senior Member

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    i'm not even going to get skunk 2 anyway, i was going to get obx stage 2, i'll give you the cam specs: Utilizes / Specs:
    LIFT/DURATION: IN. 485,266 EX. 466,262
     
  19. B16

    B16 Super Moderator VIP

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    you never stated which stage 2 cams, most common stage 2 cam is skunk2. next time don't be so "bleak".

    .485 Inches = 12.319 Millimeters
    .466 Inches = 11.836 Millimeters

    so ya, i would NOT use itr valvetrain with these cams either.
     
  20. MikeBergy

    MikeBergy Blah blah blah....

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    Screw OBX, that company is lame, I wouldn't put any of their stuff on my car if it was a critical mechanical piece.
     
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