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Determining what turbine size to use???

Discussion in 'Turbo Tech Questions' started by jon6.0, Aug 19, 2010.

  1. jon6.0

    Joined:
    Jul 13, 2009
    Engine specs in sig. Basically I want an s475-482 to be able to allow me to spin a 370 LS motor to 7000rpm cleanly. They offer a 83mm, 87mm, 92mm, and 96mm turbine wheel. I am going to shoot 100-150hp of nitrous off the line to help get things moving. Which should I try first? What factors go in to figuring out turbine wheel size?
     
    jon6.0, Aug 19, 2010
    #1

  2. jon6.0

    Joined:
    Jul 13, 2009
    Re: What Borg Warner turbine size for rear mount?

    What about a Garrett GT80/88 with a 94mm turbine wheel?
     
    jon6.0, Aug 20, 2010
    #2

  3. TTFBDY

    Joined:
    Aug 18, 2004
    Check out screen name Zombie on tech. He runs a ST80 rear mount.
     
    TTFBDY, Aug 20, 2010
    #3

  4. jon6.0

    Joined:
    Jul 13, 2009
    He is running an 87mm turbine with a T4 1.25AR. His motor is lower compression than mine with a small cam and he isn't spinning it much past 6k rpm.

    I want to use a T6 and spin to 7k without it falling off. Peak power somewhere in the 6400-6700 range.
     
    jon6.0, Aug 20, 2010
    #4

  5. TTFBDY

    Joined:
    Aug 18, 2004
    Blown385 -S480, 1.1 T6, 87mm, 6500 shift, front mount
     
    TTFBDY, Aug 20, 2010
    #5

  6. JZ 97 SS 1500

    Joined:
    Jan 29, 2003
    92mm turbine, with a 1.10A/R T6. You could go with the 96/1.32A/R combo, but it would add some un-needed lag.
     
    JZ 97 SS 1500, Aug 21, 2010
    #6

  7. jon6.0

    Joined:
    Jul 13, 2009
    How much lag? I'm going to have the stall set from 4400-4800 once I get everything built.
     
    jon6.0, Aug 21, 2010
    #7
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