When is it time to switch to a Mag ?

Discussion in 'InsideTopAlcohol.com Tech Questions' started by Bill Masiello, Nov 7, 2019.

  1. Bill Masiello

    Bill Masiello New Member

    Joined:
    Jan 17, 2019
    Messages:
    4
    Likes Received:
    0
    I have been running a small block injected dragster on alcohol and have started to run small amounts of nitro as well ! I run an MSD 7AL 3 box with a 2 amp coil ! I started at 13 percent and the car picked up about a tenth and now have gone to 25 percent with really no gain at all ! With an 84 jet the plugs show on the lean side yet going to an 80 jet shows no change at all ! I tried a little more timing from 34 to 36 and no change at all ! Could it be that my ignition is not putting out enough ? Thanks Bill !
     
    #1
  2. dragster156

    dragster156 Member

    Joined:
    May 31, 2012
    Messages:
    136
    Likes Received:
    4

    Why not send it out and have it gone through ?? Only a few hundred bucks
     
    #2
  3. jay70cuda

    jay70cuda Active Member

    Joined:
    Sep 30, 2009
    Messages:
    1,040
    Likes Received:
    19
    Or now could be the best time to buy a mag. Used to be a $6000 investment. Hell I’ve seen whole setups now for $2000. You’re gonna end up upgrading sooner or later anyways ? The rage is all the coil over plug stuff. People can’t give away mag setups.
     
    #3
  4. Mike Canter

    Mike Canter Top Dragster
    Staff Member

    Joined:
    Mar 10, 2004
    Messages:
    4,425
    Likes Received:
    134
    Nitro really has a slow burn rate so the more you add the more timing you have to add. The question is how much. Also a main jet change of only 4 sizes in truly insignificant with methanol and even more with nitro. Pure nitro has a 1:1 AFR so the more you add the richer it needs to go. Also what sparkplug gap are you using? It needs to be down around .015 because the more fuel you add the more liquid in the chamber and the harder it is to ignite
     
    #4
  5. swsc4133

    swsc4133 Member

    Joined:
    Nov 18, 2012
    Messages:
    66
    Likes Received:
    2
    Have you talked to Spud Miller at Fuel Injection Enterprises? Hes very good with that exact combo and has some really good reads on his website called "Nitro Notes".
     
    #5

Share This Page