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Does this procharger torque curve look typical?

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Old 04-29-2015, 09:41 PM
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Default Does this procharger torque curve look typical?
The torque curves I've seen haven't been this flat. It's a F1 on a 383, ~12 psi.

Thanks,
Mark

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Old 04-29-2015, 10:24 PM
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looks like wheel spin

can you have them overlay engine speed and drum speed?
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Old 04-29-2015, 10:56 PM
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^i was thinking the same^ or blowing through the converter if it's a auto car. It's pretty freakin flat though.
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Old 04-29-2015, 11:02 PM
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look how it rolls off, then starts to climb back up at the top, 9/10 times ive seen that on the dyno is wheel spin or clutch slip
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Old 04-30-2015, 12:56 AM
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Definitely tire spin
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Old 04-30-2015, 07:13 AM
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I agree, had one do that yesterday with 5 year old hard tires.
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Old 04-30-2015, 11:55 AM
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Thanks guys. Tuner said he thought the clutch was slipping. Just wanted some addl feedback.
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Old 04-30-2015, 07:34 PM
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both tire and clutch slip can look similar on the dyno.
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Old 05-04-2015, 10:23 AM
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It's very easy to tell if it's clutch slip or tire slip on the dyno when tuning, there shouldn't be a question as to which one it was.
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