Thread: How much HP/TQ did you gain from Dyno Tune?
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Old 12-02-2006, 04:01 PM
J Persons J Persons is offline
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Join Date: Aug 2004
Location: Rosamond, Ca
Cobra Make, Engine: FFR, 331 Sportsman block, T5Z, 3.55 IRS, Fuel Safe cell
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First pull produced 356 HP @ 5955 RPM, and 328 FT LBS TQ @ 5517 RPM.
Last pull produced 372 HP @ 6156 RPM, and 340 FT LBS @ 5262 RPM.

They went up 3 sizes on the secondary mains, and installed a one size larger pump shooter on the primary to cure a tip in stumble. Cost was $250.00, for three pulls, and that included the parts.
John
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FFR, 331 SBF dynoed 372RWHP@ 6100 RPM on 87 octane pump gas
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