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Thread: S15 Spec-R - VQ30DET conversion

  1. #1
    Join Date
    Nov 2012
    Location
    Queensland, Australia
    Posts
    16

    Default S15 Spec-R - VQ30DET conversion

    So Iíve had my S15 for a couple of years now, and after viewing this site for a few years i finally got around to joining.

    Purchased mechanically stock with typical retard mods of neons & clear tail lights - which were promptly removed/disabled (Not all bad however - came with a pretty decent $2000+ pro installed Alpine stereo).

    Having modified a 200sx before (I had a S14a back in the 90ís) i had a fair idea of what i was after & how to achieve it Ė responsive usable power - so with this in mind i set about modifying.

    Engine:

    Camtech billet VCT Camshafts 260/260 10.5mm/10.5mm
    Garrett GT28/71 52t - 400hp turbo
    Speedflow oil / coolant lines
    Sard 550cc Injectors
    Z32 afm
    Nistune ECU
    Turbosmart plumb back BOV
    Blitz Dual ID boost controller
    3" exhaust
    300x600x76 intercooler setup
    Walbro fuel pump
    wide band AFR meter
    Oil catch can
    k&N air filter

    This combo ended up putting out 294rwhp / 220rwkw @ 16psi boost

    Wheels:

    Work Meister S1 3P - 18x8 & 18x9

    Suspension:

    HKS Hypermax III coil overs

    Pics:










  2. #2
    Join Date
    Nov 2012
    Location
    Queensland, Australia
    Posts
    16

    Default

    So this was fantastic for a while, almost zero lag and a good street setup.

    But I got bored.

    So in a moment of weakness I bought one of these:









    VQ30DET Y33 Cima front cut with a genuine 26,000km on the clock.

    And then the conversion started.

    First of all I sorted out the ECU, decided to go for a Nistune setup, as the car is a streetcar with A/C, P/S decided that the stock ECU modified would be the best plan.

    After around 12 hours work using multiple wiring diagrams (removing body loom, airbag loom etc) , wiring = sorted



    Then had some of these made up so hold the engine and transmission in place:





    Then SR20DET came out and real work started:

    SR20DET and wiring loom came out and work started on installing new valve springs and 265 deg cams into the VQ30DET.

    Anyways, pix of progress.

    SR20 out - served me well, off to live a new life in a Datsun 200B coupe



    On trailer returning from engine & wiring loom removal



    Back home ready for work to commence





    Drained motor of oil and cracked the sump, the motor was mint



    So then I decided that I wanted to chuck a set of cams in it.

    All covers and accessories off and cams out - so much crap to come off to get the sticks out



    Jim Wolf spring compressor mocked up - fits up nicely.


  3. #3
    Join Date
    Jul 2010
    Location
    SW London
    Posts
    827

    Default

    I read the first post a couple of days back and wondered where the vq30det engine was from the title. Great engine conversion, you might be a bit tight on space, as those engines were notoriously difficult to work on even in a Z32. Either way I'll be looking forward to seeing the swap done, there's so much potential in those engines.

  4. #4
    Join Date
    Nov 2007
    Location
    Syyydeneeey
    Posts
    1,879

    Default

    Interesting and unusual build, out of interest how much does VQ30DET weigh? What suspension and brake setup will you be running? Will you still use the HKS's
    Last edited by Auss15; 27-11-2012 at 09:28.

  5. #5
    Join Date
    Nov 2012
    Location
    Queensland, Australia
    Posts
    16

    Default

    Cheers mate, would love to post up all my pics but as im a new member this is taking quite some time as each post must be approved.

    Unless a mod can sort that out for me?

    Quote Originally Posted by Adam L View Post
    I read the first post a couple of days back and wondered where the vq30det engine was from the title. Great engine conversion, you might be a bit tight on space, as those engines were notoriously difficult to work on even in a Z32. Either way I'll be looking forward to seeing the swap done, there's so much potential in those engines.

  6. #6
    Join Date
    Nov 2012
    Location
    Queensland, Australia
    Posts
    16

    Default

    Quote Originally Posted by Adam L View Post
    I read the first post a couple of days back and wondered where the vq30det engine was from the title. Great engine conversion, you might be a bit tight on space, as those engines were notoriously difficult to work on even in a Z32. Either way I'll be looking forward to seeing the swap done, there's so much potential in those engines.
    Actually reading this again i think you are referring to an iron block VG30DETT (Z32), this engine i am using is an all alloy VQ30DET which is basically identical to a 350Z VQ35DE (except VQ30DET is built for turbo factory, 500ml smaller in capacity) and its cousin VR38DETT R35 GTR engine as picured below:






  7. #7
    Join Date
    Nov 2012
    Location
    Queensland, Australia
    Posts
    16

    Default

    Quote Originally Posted by Auss15 View Post
    Interesting and unusual build, out of interest how much does VQ30DET weigh? What suspension and brake setup will you be running? Will you still use the HKS's
    Cheers mate - ive build a couple of unusual cars before so this is not out of the norm for me

    VQ30DET is around 20kgs heaver than SR20DET (very compact and all aluminium) but negating the weight its able to be mounted far back in the engine bay.

    No plans in changing suspension and brake wise i'm running R34 GTR 324mm front discs with calliper adaptors and 300mm rear discs - should stop pretty decently i hope!

  8. #8
    Join Date
    May 2011
    Location
    Essex
    Posts
    105

    Default

    Cool build! I've got an S15, a Y32 Cima, 300zx box and cross member needed to put them all together. Cant decide if I should do it or just bling the cima up and drive it. I'll be watching your progress!!!

  9. #9
    Join Date
    Nov 2012
    Location
    Queensland, Australia
    Posts
    16

    Default

    Quote Originally Posted by Tommy Kaira View Post
    Cool build! I've got an S15, a Y32 Cima, 300zx box and cross member needed to put them all together. Cant decide if I should do it or just bling the cima up and drive it. I'll be watching your progress!!!
    Cheers mate!

    I had a VG30DET in my old car, went well.




  10. #10
    Join Date
    Jun 2008
    Location
    Wiltshire UK
    Posts
    81

    Default

    clean car, really like it. Just wonder where are you going to put turbo, in front of the engine?

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