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D15B vtec build

Discussion in 'Engine Building' started by K2e2vin, Aug 23, 2005.

  1. K2e2vin

    K2e2vin Senior Member

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    well i was about to buy a GSR swap for my CRX, but im deciding to go another route and i dont want to spend too much money on my car right now(and trying to keep it sleeper). ive decided to go D-series route...D15B vtec to be exact(the old D15B2 might find its way into a go kart or my lawnmower maybe :p :D).

    here's what im thinking of doing so far:
    P29 or ZC pistons and new rings(.25 oversized)
    P28 ecu with uberdata
    gsxr1000 itb's(ive had them for awhile now)
    bisimoto header
    spark plugs :shrug:

    Does anyone know what the compression would be? i used a d-series calculator but its giving me like 14:1, is this right?

    im also trying to decide on the cam right now:
    JG engine dynamics or Crower stage-3.
    ive read that the stage-3s need head modifications; does anyone know what exactly needs to be done? also, which one has a better(flatest torque band that will go up to like 7500-8000rpms).

    last question; does anyone know the flow rate of the GSXR750 injectors? is it even possible to use the GSXR injectors?

    Thanks for the help.
     
  2. K2e2vin

    K2e2vin Senior Member

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    well after few hours of searching(maybe around 8hours total); i found the injector flow rates and other specs for the throttle bodies.

    If anyone else is interested, here they are: http://www.homemadeturbo.com/forum/index.php?topic=39723.0

    but i still dont know if theyre saturated or peak-hold type.
     
  3. cxjon

    cxjon Senior Member

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    do a carb set up.

    www.allmotorsohc.com
     
  4. K2e2vin

    K2e2vin Senior Member

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    if the engine was a non-vtec i would run carbs, but to me tuning a EFI system is much easier.

    thanks blanco. you think Crome or Uberdata will suffice?
     
  5. hybrid89

    hybrid89 thistownsucks...

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  6. hybrid89

    hybrid89 thistownsucks...

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    BTW-- K2e2vin I'm an doing a simalar build for my CX hatch while I get my sleeved GSR bottom end going! If you have any question about this, LMK or I might hit you up if I get stuck on some shit! GL

    matt
     
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