SBC exhaust EGT readings.

Discussion in 'PSI Superchargers Tech Questions' started by Clayto, Apr 19, 2010.

  1. Clayto

    Clayto new

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    What are guys seeing in EGT readings on blown alcohol small blocks. Idle and finish line temps? Especially the centre exhaust pair?

    Thanks.
    Greg.
     
    #1
    Clayto, Apr 19, 2010
  2. BLOWN INCOME

    BLOWN INCOME tafc

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    Idle- (850)
    at the traps- 1080
    powerglide,leaving at 4500 rpm,1900lb. Dragster,8200 rpm at the traps, 6.0's @219mph..chev splayed valve heads,10:71...
     
    #2
    BLOWN INCOME, Apr 20, 2010
  3. turbo69camaro

    turbo69camaro Member

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    700-800 idle 1100-1200 at the 1/4 387ci pro action 14 heads 14-71 15 over 40 lbs boost 4 speed Lenco 2900 lbs 7.50's 189 mph
     
    #3
    turbo69camaro, Apr 20, 2010
  4. old school

    old school Member

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    egt readings

    750 to 850 starting line,1050 to 1175 at the line.
    sbc 434 donovan 25# boost ,7.0 in the 1/4!

    DON
     
    #4
    old school, Apr 20, 2010
  5. Mike Canter

    Mike Canter Top Dragster
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    Why so hot at idle? 700-800* is real warm for a hemi or BBF. We run down at 400-425 maybe up to 450 except for a couple of back cylinders which may be at 500*. Is this just characteristic of a SBC?
     
    #5
    Mike Canter, Apr 20, 2010
  6. SCO1035

    SCO1035 New Member

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    Middle Cylinders

    We always ran a little larger nozzle in the middle two cylinders for the obvious heat reasons.
     
    #6
    SCO1035, Apr 20, 2010
  7. turbo69camaro

    turbo69camaro Member

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    I always ran my BV a little lean at idle wanted to build heat faster and did not want to milk the oil with the old kendel oil we could go 3 to 4 weekends and the oil looked great.once i staged and brought the motor up the temps dropped to 500 or so
     
    #7
    turbo69camaro, Apr 20, 2010

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