Ignition timing and Boost

Discussion in 'PSI Superchargers Tech Questions' started by Gabe Cogswell, Sep 18, 2021.

  1. Gabe Cogswell

    Gabe Cogswell New Member

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    I have a twin turbo hemi with fuel heads. Can't seem to find lots out there about turbo stuff.
    We are very conservative on igntion timing, this engine with a blower ran 28 degrees at 45lbs. The only thing different is it now has efi, turbos and coil on plug.
    So my question, have any of you guys swapped to a different power adder and does it effect timing. If you changed nothing on the engine and went to a procharger or turbos. Would timing change?
     
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  2. Mike Canter

    Mike Canter Top Dragster
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    Nope, timing should remain the same. The engine doesn’t know what is giving it boost. But fuel amount has to be correct.
     
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  3. Ron Clevenger

    Ron Clevenger New Member

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    You say you changed Ignition. If your new ignition has increased your Millijouels more than likely it will require less timing also. So watch that in your tune up.
     
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