Torque Convertor stall speed

Discussion in 'Fox 5.0 Mustang' started by Cobra912, Nov 5, 2009.

  1. Cobra912 Active Member

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    I need help figuring out my torque convertor stall speed for my C4 and 3.73 gears on a 26x8 soon to be a 28x10. The car specs are as follows:

    Engine - = 331 SBF

    Horsepower? = 448 @ 5700

    RPM of peak HP? = 5700

    Torque? = 419 @ 5600

    RPM of peak torque? = @ 5600

    Any power adders? = Supercharger - Paxton 1220 SL - approx. 7 - 8lbs boost at WOT

    Duration of cam @ .050? = 212 / 224 - .512 / .512 Lift Here are specs: COMP Cams - Cam Details

    Shift RPM? = @ 5600

    Rear end ratio? = 3.73

    Tire height? right now 26 x 8

    1/8 mile or 1/4 mile? = 1/4 mile only

    Best ET? = 11.46 @ 121mph with stock T-5

    Best MPH? = 122

    Car's track weight w/ driver? = approximately 2700 lbs


    Any suggestions?:shrug: New to the C4 world..........
  2. Bullitt95 Active Member

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    If you have your dyno sheet, post it so we can take a look at the HP/TQ curves. Then we might be able to tell at what rpm your converter is stalling at.
  3. Cobra912 Active Member

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    well I have no way of scanning it in. How do I tell what RPM it is stalling at . It climbs consitently from 2500 rpm up maxing at 5700 rpm. there is no plateau until then.

    Not a lot of C4 users on Stangnet?
  4. Bullitt95 Active Member

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    Take a digital photo of the dyno sheet and upload it.

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