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When do you need to swap to a severe duty exh valve?

Discussion in 'Turbo Tech Questions' started by TTFBDY, May 31, 2009.

  1. TTFBDY

    Joined:
    Aug 18, 2004
    It's all in the title.
    What hp or boost level or ????
     
    TTFBDY, May 31, 2009
    #1

  2. 10secgoal

    Joined:
    Jan 29, 2005
    High egt's !!!
     
    10secgoal, May 31, 2009
    #2

  3. TTFBDY

    Joined:
    Aug 18, 2004
    Thanks, but wouldn't that be a little late????

    I'll probably mount a tc before the turbo for tuning. Most just use a WB to make sure the afr is ok.

    What temp should you stay below long term and short term?
     
    TTFBDY, May 31, 2009
    #3

  4. 10secgoal

    Joined:
    Jan 29, 2005
    Not sure on long term, short term. But you are gonna need a valve to withstand 15-1600 deg
     
    10secgoal, May 31, 2009
    #4

  5. TTFBDY

    Joined:
    Aug 18, 2004
    I'm just curious since I see a lot of people running stock LS valves. They usually break something else first. Running extra fat helps I guess.
     
    TTFBDY, May 31, 2009
    #5

  6. 71 cam

    Joined:
    May 29, 2009
    You will eventually need to upgrade to an Iconel exhaust valve to hold up to the heat and a good stainless intake valve. I would say you would be ok up to 10lbs. Most bolt on turbo kits for stock applications are under 10lbs.
     
    71 cam, Jun 2, 2009
    #6
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