Old worn out blower vs brand new stripped Littlefield

Discussion in 'PSI Superchargers Tech Questions' started by GregM784, Oct 10, 2019.

  1. GregM784

    GregM784 Member

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    I've updated my blower. My Mooneyham had been maintained but wasn't ever restripped. It was very loose. At 25 over it would make 16-17#s max.
    My new Littlefield is nice & tight (brand new). On my old combo, about 10% over was 14#s. I'm thinking starting this blower at 1:1 or even a few under to get the feel of it.
    Is there a general consensus on how much a new blower pics up?
    Mathmatically, 1:1 should be 14psi or so (387" sbc)

    This is a 7.60 index car, blown alcohol FED.
     

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  2. nitrowannabe

    nitrowannabe Member

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    Both are hi helix ? Is the new Littlefield an LB22 ?
     
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  3. GregM784

    GregM784 Member

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    BOth are std helix.

    Littlefield is a competition blower, not an LB.
     
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  4. nitrowannabe

    nitrowannabe Member

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    Don't know what you mean by that. The LB22 Littlefield is their best competition blower.
     
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  5. GregM784

    GregM784 Member

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    They have a series called "competition". It's not a retro (LB) it is a standard helix, cast case stripped 671
     
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  6. nitrowannabe

    nitrowannabe Member

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    Perfect for your application.
     
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  7. turbo69camaro

    turbo69camaro Member

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    I had a 362ci sbc LF 6-71 made 25 psi 30 OD its was maxed out
     
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  8. GregM784

    GregM784 Member

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    Ended up 10 under, making 14# of boost, running the same numbers as 26 over.
     
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