Results 1 to 4 of 4

Thread: How much HP??

  1. #1
    Senior Member MASTER BUILDER
    Join Date
    Oct 2003
    Posts
    144

    How much HP??

    I am tryin g to determine a base line on an engine combo I am building.
    It is a sbc, dart 4" stroke, 4.155 bore, 14.5-1 compression, heads that flow
    350-355 cfm @ .700.
    it is alcohol injected and also vac pumped.
    drag engine.
    Engine is new.
    here is what I came up with:
    engine alone 720 hp
    alcohol injection 5% + 756 hp
    vac pump + 35 hp = 791 hp
    am I close?

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    May 2006
    Posts
    2,044
    Pretty close I'd say. A dyno will tell no lies though.

    Later Cp
    ***IN GOD WE TRUST***

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    May 2003
    Location
    Coldwater, MI
    Posts
    2,998

    Re: How much HP??

    Quote Originally Posted by altune
    I am tryin g to determine a base line on an engine combo I am building.
    It is a sbc, dart 4" stroke, 4.155 bore, 14.5-1 compression, heads that flow
    350-355 cfm @ .700.
    it is alcohol injected and also vac pumped.
    drag engine.
    Engine is new.
    here is what I came up with:
    engine alone 720 hp
    alcohol injection 5% + 756 hp
    vac pump + 35 hp = 791 hp
    am I close?
    I'd say you are close, but we usually see 15-20hp for vacuum pump. Seen 45hp for injection.
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  4. #4
    Senior Member MASTER BUILDER
    Join Date
    Oct 2003
    Posts
    144
    It's kinda what I figured.
    Close to 800 hp.
    Possibly a bit more or a bit less
    I have also a morroso oil accumilator and running less oil in crankcase.
    no dyno's in my area
    crap
    Al


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Copyright © 2005-2016 RacingJunk.com All Rights Reserved.

Designated trademarks and brands are the property of their respective owners. Use of this Web site constitutes acceptance of the RacingJunk.com
Terms of Use, Classifieds Disclaimer, Privacy Policy, and Cookie Policy