2 step question

Discussion in 'PSI Superchargers Tech Questions' started by rickey, Oct 13, 2010.

  1. rickey

    rickey Member

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    removed air cylinder and intalled a 2 step

    when 2 step is activated the tach goes crazy

    is this normal?

    thanks
     
    #1
    rickey, Oct 13, 2010
  2. Mike Canter

    Mike Canter Top Dragster
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    Throw that tach away. You don't need no stinking tach. Remember the 2 Step is shutting down spark to cylinders to keep that RPM down. This makes the tach go crazy. So the answer is YES that is normal. Hope you are installing a fuel bypass solenoid to dump some fuel when on the Step
     
    #2
    Mike Canter, Oct 13, 2010
  3. rickey

    rickey Member

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    thanks Mike, no we are not dumping fuel, it's only a SBC :D
     
    #3
    rickey, Oct 13, 2010
  4. Don Onimus

    Don Onimus New Member

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    2 step

    doesn,t matter what motor it is. you need to keep that extra fuel away. or you will be asking why my stuff is all over the starting line and track
     
    #4
    Don Onimus, Oct 14, 2010
  5. KennyKeller

    KennyKeller New Member

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    Rods and pistons on the starting line.... car, 20 feet away.....
     
    #5
    KennyKeller, Oct 14, 2010
  6. ibaddlizzard@aol.com

    ibaddlizzard@aol.com New Member

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    how you go about taking the fuel away while on the 2 step ? and how much you take away ?
    we have never taken fuel away before, havent had any probs in 3 years, DOC:cool:
     
    #6
    ibaddlizzard@aol.com, Oct 14, 2010
  7. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    solenoid

    Doc,

    The common set up is a nitrous solenoid (for methanol) that activates off a clutch switch or tbrake switch. Depending on the fuel system, most have a 75 to 120 jet open while on the 2 step to basically act like the barrel valve at stage. When you go wide open, you put WOT fuel through the BV.

    Like yourself, I have heard of people doing the 2 step without leaning it out, but I would think it would help it at stage.
     
    #7
    Will Hanna, Oct 14, 2010
  8. aj481x

    aj481x Member

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    Clearly there is more than one way to do this, but there are some very successful cars that do not take away any fuel.
     
    #8
    aj481x, Oct 15, 2010

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