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Backside housings too small?

Discussion in 'Turbo Tech Questions' started by PEARL MUSSIN, Oct 31, 2020.

  1. PEARL MUSSIN

    Joined:
    Jan 30, 2003
    Without putting a gauge on it how can I tell if my exhaust housings are too small? Will the car act differently? Car went 9.5-9.4 @ 145 on 18psi and 9.2 @ 148 on 21.

    357 with twin T-70 with. 68 housings.. Should. 96s be in my future?
     
    PEARL MUSSIN, Oct 31, 2020
    #1

  2. Mnlx

    Joined:
    Sep 20, 2009
    Mph per psi, or if it lays over prematurely. A gauge is the only real way to know imo. There's a member here with a 383 sbc, with decent heads, and e85. He needed to go to the .96's to get below 2:1 with the same turbos.
     
    Mnlx, Nov 1, 2020
    #2
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