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Thread: SBE 302 Turbo selection?

  1. #1
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    SBE 302 Turbo selection?

    I am putting together a budget turbo kit for my SBE 302 and planned to run a cheap GT45, but I have the opportunity to buy a Borg Warner S366 at a pretty good price. I already have the GT45, but am worried it won't start building boost quick enough. 1) Do you think the GT45 would pair well with the 302? 2) Would I benefit more from the S366? 3) Also open to other opinions.

    Setup is SBE 302, TFS 170s, 4150 EFI intake and elbow, E85, non-intercooled, TKO600, 3200 lbs.

    GT45: Trim: 69
    A/R: .66
    Inducer: 68.7
    Exducer: 97.8*
    Turbine:
    Trim: 92
    A/R: 1.05
    Inducer: 87.4
    Exducer: 77*

    S366: Compressor Wheel Inducer Diameter (mm): 66mm
    Compressor Wheel Inducer Diameter (in): 2.6
    Compressor Wheel Outer Diameter (in): 3.6
    Turbine Wheel Outer Diameter (mm): 80mm
    Turbine Wheel Outer Diameter (in): 3.14
    Turbine Wheel Exducer (mm): 73mm
    Turbine Wheel Exducer (in): 2.89
    Turbine A/R: 0.91
    Turbine Inlet Style: T4
    Scroll Type: Twin

  2. #2
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    The gt45 will be a little laggy but the s366 should make boost quicker and be plenty for your set up. All depends on hp and et goals. But with a stick if it were me, I'd run the s366.
    SB Dirty Dozen #5, 2005
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  3. #3
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    I gotta ask- whats the SBE in "SBE 302" mean? Never heard that one before. Small block engine?
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  4. #4
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    Id run the S366 also. The 1.05 A/R on a stock bottom end will be very slow to spool.

    - - - Updated - - -

    Quote Originally Posted by IWRBB View Post
    I gotta ask- whats the SBE in "SBE 302" mean? Never heard that one before. Small block engine?
    Stock Bottom End
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  5. #5
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    https://www.theturboforums.com/threa...321736/page-27

    Great thread to read about gt45 turbos.
    SB Dirty Dozen #5, 2005
    SB Dirty Dozen #11, 2006
    92 blk on blk coupe, coyote turbo power in the works
    Engine builder for Pinks winner

  6. #6
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    Quote Originally Posted by draggin50 View Post
    Id run the S366 also. The 1.05 A/R on a stock bottom end will be very slow to spool.

    - - - Updated - - -



    Stock Bottom End
    Thanks, I was wondering as well.
    SB Dirty Dozen #5, 2005
    SB Dirty Dozen #11, 2006
    92 blk on blk coupe, coyote turbo power in the works
    Engine builder for Pinks winner

  7. #7
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    New Facebook lingo used in the LS world!!! Don't ask me why I know this!
    Photobucket can kiss my ass!!!

    04 Comp Orange Cobra #3653

  8. #8
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    I hate facebook, now I have another reason. Lol.
    SB Dirty Dozen #5, 2005
    SB Dirty Dozen #11, 2006
    92 blk on blk coupe, coyote turbo power in the works
    Engine builder for Pinks winner

  9. #9
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  10. #10
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    Out of those two I would go with the Bog Weiner 366.

  11. #11
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    Quote Originally Posted by 2-Tone View Post
    Out of those two I would go with the Bog Weiner 366.
    Hahahaha!!!!
    Photobucket can kiss my ass!!!

    04 Comp Orange Cobra #3653

  12. #12
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    Thanks guys. I'll go with the S366. SBE,,,,, I have been hanging around too many LS guys

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