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Thread: How Much Timing GT500

  1. #1
    Tuner
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    How Much Timing GT500

    How much timing is the maximum I should run on 93 and 100 octane?

    Just switched to a 170 degree thermostat and am seeing a good amount of timing. Added 4 degrees of timing and saw 23* on the log. About crapped a brick. Pulled 2 out of her and now I am at 20 depending on the weather. Air fuel ratio is 11-11.4 throughout the pull.

    7.4 wot.hpl
    2019 Ford Raptor Tow Rig Scarab 195 Open 250HO
    2008 Shelby GT500 VMP Gen II-R (17psi), JLT 123mm CAI, Ford SCJ Monoblade Throttle Body, 56# Injectors, BoostAPumps, VMP triple pass heat exchanger (dual fan), 170* thermostat, BBK long tube headers, Dual resonators, Magnaflow Catback, LC2 Wideband, RXT clutch

  2. #2
    Senior Tuner SultanHassanMasTuning's Avatar
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    18-19 peak on pump safely
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  3. #3
    Senior Tuner
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    Apr 2005
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    20* is the most I log with my 2013 and with a 2.40 upper pulley.

  4. #4
    Tuner
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    Sounds good. Yeah I backed it down after that run. Just need to work on a new heat exchanger to keep the temps down.
    2019 Ford Raptor Tow Rig Scarab 195 Open 250HO
    2008 Shelby GT500 VMP Gen II-R (17psi), JLT 123mm CAI, Ford SCJ Monoblade Throttle Body, 56# Injectors, BoostAPumps, VMP triple pass heat exchanger (dual fan), 170* thermostat, BBK long tube headers, Dual resonators, Magnaflow Catback, LC2 Wideband, RXT clutch

  5. #5
    what if its 110 pump?