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low power?

Discussion in 'General Tech and Maintenance' started by DB8-GSR, Apr 28, 2008.

  1. DB8-GSR

    DB8-GSR New Member

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    I have a 94 gsr with, intake, intake manifold, headers, catback exhaust and some other little things. i recently got my car dyno'd before i put the intake manifold on and it made 155.3 at the wheels. i know that there is about a 15% loss of power through the drivetrain, but i was just wondering is this a little low? :confused:
     
  2. INJEN78

    INJEN78 HS LEGEND

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    stock gsr makes about 165hp..intake adds maybe 1hp,exhaust adds maybe 2-3hp,header will be about 1-2hp..so your figures sound about right,a little low,,,but that manifold will make you lose power,if you dont do cams and such
     
  3. siesmic

    siesmic New Member

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    check the 02's and make sure all vacumm lines are good
     
  4. INJEN78

    INJEN78 HS LEGEND

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    if there was a bad vaccum line,then there would be a noticeable leak(hunting idle,high idle)and if one of the o2's were bad there would be a cel
     
  5. siesmic

    siesmic New Member

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    true, but i just mentioned it as an extra.
     
  6. DB8-GSR

    DB8-GSR New Member

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    it was on the dyno before the IM is put on, cams , new valvetrain, and a bigger TB and hondata is in the mail as we speak for that, but i'll look into the o2's. i just didn't think that 155 was right.
     
  7. BrutalB83

    BrutalB83 Brutal Moderator Moderator VIP

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    If you calculate a 15% drive-train power loss on a 175 horse power engine you end up with 149 horses (roughly). When you take the intake, header, and exhaust into account, 155 horses sounds just about right...
     
  8. LS_VTEC

    LS_VTEC you get the BRAKE

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    Its a stock gsr engine with bolt-ons, what did you expect? 155 is about right for what you have. Adding a larger plenum intake manifold actually loses power if you do not compensate with more air/fuel. The throttle body won't add much except better throttle response in your situation, and intake/exhaust isnt a serious deal here since your still flowing the same as stock through the engine. Bolt-ons are pointless without engine modifications, like head porting/matching to the manifold, higher lift camshafts, high quality header (smsp/hytech/rage) and so forth. I personally keep the stock manifold/tb most of the time for a smoother power band.
     
  9. awptickes

    awptickes unimpressed by you VIP

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    Sounds about right to me. Just don't listen to the people who say "INCREASEZ UR HORSEZ BY UPTO 10+!!!"
     
  10. siesmic

    siesmic New Member

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    LMAO!
     
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