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Valve springs for SOHC application

Discussion in 'Advanced Tech Section' started by Wallace, Jan 14, 2011.

  1. Wallace

    Joined:
    Dec 3, 2004
    I'm trying to figure out what valve springs I should use for a SOHC engine. It has 41mm int and 36mm exh valves. The cam is a stock roller with .430 lift and .236/.232 duration. Boost will be in the 35 psi range. Would like to know what seat and open pressures I should be using. any advice or info is always appreciated. Thanks for your time.
     
    Wallace, Jan 14, 2011
    #1

  2. wantabe

    Joined:
    Oct 12, 2010
    depends on spring rate..
    seen upto 140-160 lbs on lexus quad cams
    80-120 is common too for tuff streeters
     
    wantabe, Jan 15, 2011
    #2
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