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Where to start with switching to E85

Discussion in 'Carburetor + Boost Tech Questions' started by 82datsun720, Nov 2, 2015.

  1. 82datsun720

    Joined:
    Nov 8, 2014
    Hey guys truck is very dialed ..finally. on 93 so im now wanting to switch to E-85 when i built the truck I ran all E85 lines and made sure my pump and regulator would work also. Im running a Holley 500 on a 2.2L datsun engine with 63 jets 50cc pump pvcrs opened up about 0.10 I know i need about twice the amount of fuel another question is do i have to read my AFR gauge differently with E85 is there a different chart?
     
    82datsun720, Nov 2, 2015
    #1

  2. Rickracer

    Joined:
    Nov 19, 2012
    Your boosters need to be opened up along with the rest of the mods, it's not twice the amount of fuel, more like 28~30%. You can leave the W/B setting the way they are and just look for different numbers. I've got a chart somewhere, but I look for mid ~ low 11s to high 10s at WOT.
     
    Rickracer, Nov 3, 2015
    #2
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