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b16 and b18 specs?

Discussion in 'Engine Building' started by lude68, Nov 6, 2003.

  1. lude68

    lude68 Senior Member

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    j/w what the different specs are on a b16 and b18 (as far as bore, rod length, etc.). Someone told me if i put a b16 crank in a b18 w/ b18 rods and pistons it would stroke it to a 1.9L. is this true or is he full of shit?

    thanx for the info.
     
  2. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    for specs go to the reference section ... its all in there

    for the B16 stroking a B18 to a 1.9 i think hes full of shit
     
  3. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    He's full of shit. If you put a B16 crank into a B18 block you'll have B16 displacement in a B18 block regardless of what rod length you use.

    B16
    Bore = 81mm
    Stroke = 77mm
    Rod = 134.6mm

    B18
    Bore = 81mm
    Stroke = 89mm
    Rod= 137mm

    I'm just recalling the rod lengths off the top of my head, but I'm pretty sure they're right. You might try consulting our reference section too.
     
  4. lude68

    lude68 Senior Member

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    k thanx a lot! i didnt even think about checking the reference sec. for some reason.
     
  5. B16

    B16 Super Moderator VIP

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    stroke is soley based on the crankshaft
    and displacement is boreXstroke
     
  6. JDMilan

    JDMilan Senior Member

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    yeah, full of hovno (czech for crap) and check out the reference section like the boys said..
     
  7. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Whoops, I was wrong- the rod length on the B16 is 134.36 not 134.6. Not that much different, but my rod/stroke ratio check calculation was coming out wrong.
     
  8. brian11to1

    brian11to1 Senior Member

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    If you put a b20B crank in a B18 it increases to 2.0 or somewhere close is what I was told, is that correct?
     
  9. GSRCRXsi

    GSRCRXsi Super Moderator Moderator VIP

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    no, the cranks are the same. b20 has a 84mm bore, thats why it has 2.0l
     
  10. minnisvtec

    minnisvtec this is why i am hot

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    I happen to disagree becaust the bore is the same on b 16 b18 and b18 but they all have diff displacements. the stroke and rod size and dech height do increase the stroke has to do with it just like if you just add a bigger crank to a 302 you get a 310. but now a b17 rods wont fit in a b18 block! because of the shortness of them so you have to try it an see
     
  11. minnisvtec

    minnisvtec this is why i am hot

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    i actually tried to put b 17 rods in a b18 block for less compresson and the crank actually hit the pistons
     
  12. minnisvtec

    minnisvtec this is why i am hot

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    lol now i see where you comin from i am on your band wagon
     
  13. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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  14. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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  15. B16

    B16 Super Moderator VIP

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    They all have different displacements because they have different cranks which changes the stroke. Where are you disagreeing with me, I can't make sense out of your statement.
     
  16. klyph

    klyph Dismember VIP

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    Wow
    usually I'm like "he posted that 3 years ago, it's pointless to bring this back up"
    but there you are with a rebuttal.
    Amazing.
     
  17. B16

    B16 Super Moderator VIP

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    :)

    Its not pointless if there is value add to the topic at hand. Lets wait and see. :)
     
  18. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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  19. stmotorsports

    stmotorsports Senior Member

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    actually I would be interested in hearing more about minnisvtec trying to put B17 slugs in a B18, I was looking to try this
     
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