My Next Motor Swap Project


  • #16
    amreboot;n767600 wrote: AND get this! The crank of the vk56 accepts the flywheel of the z32, no modifications
    I heard this, yea that does make things easier

    Some inspiration: https://www.facebook.com/media/set/?set=a.218929391483662.53644.176364502406818

  • #17
    Why the Z32 trans? Why not something out of a 350 or 370? Or even something like a 6 speed out of a Frontier?

    At least besides the obvious, you already have it.

    The Frontier gears are a bit taller through the first few, but you could compensate with the rear end if it was an issue. Not like you'll be lacking in torque.

    Frontier Six Speed Manual Transmission

    Drive First Second Third Fourth Fifth Sixth
    2WD & 4WD 4.368 2.518 1.743 1.283 1.000 0.769
    http://www.vibratesoftware.com/html_…tier.htm#Trans

    Z32 Gear ratios are: 1st 3.21, 2nd 1.93, 3rd 1.30, 4th 1.00, 5th 0.75 for the manual.
    http://www.300zx.org.uk/gear_ratios.htm
    Prius… because Pretentious wouldn't fit across the back of the car…

    Cheap, Fast, Reliable - pick any two

    My 1986 Turbo Build

  • #18
    For comparisons sake…

    The f-body T56 ratios are 2.66/1.77/1.30/1.00/.74/.50. The GTO T56 has a 2.97/2.07/1.43/1.0/.84/.63
    It wouldn't be too far off from the GTO ratios if you geared down at the rear end a bit.
    Prius… because Pretentious wouldn't fit across the back of the car…

    Cheap, Fast, Reliable - pick any two

    My 1986 Turbo Build

  • #19
    I imagine part of it is that he already has what he needs for the z32 trans aside from a starter. Plus the z32 30a is known to hold 600+hp, and 5 gears > 6 gears when the final ratios are basically the same.

    On a different note, since you are doing this if my VG pops I'll have to figure something out to get a TB48DE over here if I want something nobody has done with a z31 yet.

    Build thread http://z31performance.com/showthread…-Paint-done-eh

  • #20
    this is awesome alex. not sure if the same power potential is there between the vk and say and ls but awesome none the less

  • #21
    8800rpm from a huge v8 is ridiculous!

  • #22
    My Brother in law has fitted one to his brand new jet boat build, does 107 kmh on a 3 stage Hamilton jet no problems.

    According to the marine calculations for Jet units it makes it around 400hp. The thing i found interesting is how they don't run a fuel return off the rails. Andy had to tig weld fittings to his so he could run a conventional fueling system to suit his ecu.
    85 Turbo Slick Top
    __________________________________________________ _____

  • #23
    Amreboot,
    Is the vg33 running ok?
    shotyme

  • #24
    darryl rice;n767875 wrote: Amreboot,
    Is the vg33 running ok?
    Yeah, its running great!
    Why you ask?

  • #25
    Sorry I caught the tail end, we're you putting the v8 in the black z or something esle?!
    shotyme

  • #26
    Sorry I caught the tail end, we're you putting the v8 in the black z or something esle?
    shotyme

  • #27
    Sorry I caught the tail end, we're you putting the v8 in the black z or something esle?
    shotyme

  • #28
    amreboot;n767600 wrote: Yup. Thats correct.

    I already have the z32 trans in my Z now. I still have the z32 bell housing sitting in the garage. So yup, all I need is a z32 starter.
    AND get this! The crank of the vk56 accepts the flywheel of the z32, no modifications!

    Pretty straight forward!
    you might have to use a spacer for the z32 flywheel. the starter might have to be shimmed because of thickness differences in flywheels between na and t. the starter is the same between na and t.

  • #29
    same with the bellhousings, one is thicker than the other where the bh bolts to the block

  • #30
    james;n767702 wrote: The thing i found interesting is how they don't run a fuel return off the rails. Andy had to tig weld fittings to his so he could run a conventional fueling system to suit his ecu.


    The VK56 in the Titan, Armada, and V8 Pathfinder run a constant 51psi from the fuel pump. Nearly all Nissans with returnless fuel system run 51psi.

    1986 300ZX Turbo…sold
    1990 Skyline GT-R…new money pit
    2014 Juke Nismo RS 6-speed…daily