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Determining Turbo size with limited data

Discussion in 'Turbo Tech Questions' started by SpeedyBuick, Aug 27, 2023.

  1. SpeedyBuick

    Joined:
    Apr 18, 2020
    I am needing to figure out what Turbo to buy In order to complete my hotside fabrication. The problem is I only have limited info for naturally aspirated specs
    I know the following

    Cubic inches 310 (V8)
    Stroke 3.4
    Bore 3.8
    HP goal 500-550
    Max rpm 6000
    Compr ratio 10.0 (alloy heads)
    Sequential fuel injection
    Coil on plug ignition
    98% street car

    I'd like to buy a quality turbocharger. Not interested in the inexpensive Chinese versions. I could use some assistance

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    SpeedyBuick, Aug 27, 2023
    #1

  2. B E N

    Joined:
    Nov 22, 2016
    s363 or s366. Cubic inches and power are all you really need to figure it out. You can use maps to figure it out, but there are lots of combos on this site that have been tried real world.
     
    B E N, Aug 27, 2023
    #2

  3. SpeedyBuick

    Joined:
    Apr 18, 2020
    When I search those Turbo's they come up with a bunch of options that I have zero clue about.

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    SpeedyBuick, Aug 27, 2023
    #3

  4. TurboSnake281

    Joined:
    Dec 13, 2021
    I vote t4 .96 ar for a single turbo kit with your engine size.
     
    TurboSnake281, Aug 28, 2023
    #4

  5. SpeedyBuick

    Joined:
    Apr 18, 2020
    I ended up going slightly conservative. Ordered and on the way.

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    SpeedyBuick, Aug 28, 2023
    #5
    B E N, Wallace and Pro-SC like this.

  6. TurboSnake281

    Joined:
    Dec 13, 2021
    67mm will spool quickly. What size hot side?
     
    TurboSnake281, Aug 28, 2023
    #6

  7. SpeedyBuick

    Joined:
    Apr 18, 2020
    Open T4 / V-Band 0.82 A/R for GBC37-900
     
    SpeedyBuick, Aug 28, 2023
    #7
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