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civic 88 with d15b vtec

Discussion in 'Civic and CRX - EW' started by kakaroto_ss4, Mar 21, 2007.

  1. kakaroto_ss4

    kakaroto_ss4 New Member

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    i want to know the spec of my JDM d15b Vtec all about it.:mellow:
     
  2. 801CRX

    801CRX Got Rice?

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    Its pretty much a D16 block with a D15 head on it.
    Its got a more agressive cam(higher redline....too the roof).
    Rated at 130hp.
    It uses D16 connecting rods.
    A completely unique crank.
     
  3. kakaroto_ss4

    kakaroto_ss4 New Member

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    and the redline is? i mean its 6800 or 7200 or what and which ecu i need and i want a M/T transmision which one can i use.


    thanks
     
  4. 801CRX

    801CRX Got Rice?

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    Redline is 7,200RPM

    The ECU for that motor is p08, but itll work just fine with a p28. And your gonna need a harness to run either of the ECU's. I would say use the p28 cause its USDM which is esier to obtain.

    And you can use any d-series manual tranny, and I mean any from an 89' CRX HF to 00' Civic Ex they will all work.

    But if you can get ahold of the JDM D15B tranny with LSD go for it.
     
  5. 801CRX

    801CRX Got Rice?

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    Oh yeah and try rywire.com for all your wiring needs.
     
  6. kakaroto_ss4

    kakaroto_ss4 New Member

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    ohh thanks now what its LSD tranny how can i reconize it i mean any number i want one cuz u say like its better. other thing its this engine its better than the one who have the two vtec zolenoid?:mellow:
     
  7. 801CRX

    801CRX Got Rice?

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    LSD=limited slip differential

    Which alows both wheels to spin at the same time. Instead of a one tire fire so to say.

    The tranny is stamped: L3 i believe

    And the other one your talking about is the 3-stage Vtec which was made for MPG.
     
  8. kakaroto_ss4

    kakaroto_ss4 New Member

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    ok. but now u're talking weird again what its MPG and mine its more faster or not
    well my email is kakaroto_ss4@hotmail.com
     
  9. kakaroto_ss4

    kakaroto_ss4 New Member

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    ok but now what its a MPG now and its the 3-stage better than mine.

    well my email is kakaroto_ss4@hotmail.com
     
  10. K2e2vin

    K2e2vin Senior Member

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    Other way around: "D15Z1" type block with Z6 head. The camshaft is not more aggressive(this was proven by a guy on SOHCHonda IIRC; turns out both the D16Z6 and the D15B VTEC can have the mystery camshaft; serial begins with a D. Mine began with a B and I compared it to my cousin's Z6 camshaft, which also began with B). Redline is the same as the Z6.

    The OBDII D15B VTEC(3-stage), in comparison to the OBD1, is about the same performance wise but gets better MPG(miles per gallon). Where the OBDI is better is when you start modifying it(the 3-stg uses a unique camshaft and ECU). The MPG increase comes from the first VTEC stage; at low rpms only intake valve is opened and the other is cracked a little bit open. This creates a swirl which helps with "lean-burn". Lean=A/F higher than stoich/14.7(less fuel per air). Second stage is "normal", while third stage is the high-cam. Regular VTEC engines are just "normal and high".

    88-91 transmissions=L3
    92-95= S20
    96-00=S40

    The OBDI D15B VTEC would be S20 and the OBDII one S40.

    LSD simply sends torque to whichever wheel has the most grip or just spings both wheels at the same speed(clutch style). A regular open diff. will send power to the one slipping the most(bad because no traction=not getting anywhere).
     
    Last edited: Mar 21, 2007
  11. 801CRX

    801CRX Got Rice?

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    MPG=miles per gallon
    ^^^you know gas mileage

    Both D15B's are rated at 130hp.
     
  12. kakaroto_ss4

    kakaroto_ss4 New Member

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    What about the timming of the engine i mean i dunno its out off time cuz he fail on 6600 or 6800 rpm when its running at this rmps he turn the check engine light
     
  13. 9000_red

    9000_red Junior Member

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  14. kakaroto_ss4

    kakaroto_ss4 New Member

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    OK now i have a p08 ecu it say 37820-p08-010
    460-207251 ARH i want to know its a Automatic ecu or a Manual one?
     
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