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Jetting and boost

Discussion in 'Carburetor + Boost Tech Questions' started by 67TurboChevelle, Mar 16, 2006.

  1. 67TurboChevelle

    Joined:
    Jun 10, 2005
    Right now I am running 10lbs of boost with a D1SC on a 400 inch small block. I have a new pulley coming that will push this to 15lbs of boost. Based on everyones experience with a blow through carb and boost increase, how much should I bump up the jetting with this new boost level???
     
    67TurboChevelle, Mar 16, 2006
    #1

  2. Lincs 84 351

    Joined:
    Oct 28, 2005
    Do you have a wideband?


    My own personal experience (FWIW) is that if the jetting is good at 8 psi it'll be good at 12 and 16 and 20......
     
    Lincs 84 351, Mar 19, 2006
    #2

  3. Lincs 84 351

    Joined:
    Oct 28, 2005
    browse the database..........

    Short answer to your Q........it depends.
     
    Lincs 84 351, Mar 19, 2006
    #3

  4. jdpepper

    Joined:
    Dec 15, 2003
    Like linc says, it depends. I took the car to a tnt w/ the 70/95 jets and it fell on its face(tooooo rich) but at the dyno the day before it made 850+hp. Its probably better to err on the rich side and take fuel out if needed.
     
    jdpepper, Mar 19, 2006
    #4
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