MacAuto Utec, Vortec,Dyno results

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03-19-2006, 07:16 AM

#21

booger

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If his boost was at 9.5psi at 5000rpm and basicly held around there till redline . His belt was slipping . Either from a loose serp belt or a combination of serp belt and higher preasure between the IC and blower

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04-06-2006, 11:33 AM

#22

Robert_K

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Kevin, Did you get new numbers yet with the 550 injectors & re-tune?

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04-06-2006, 03:58 PM

#23

kevinapex

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Ya, I did go back to MacAuto for a re-tune with the 550s. We had a hell of a time with two stuck injectors, torn seal at the end of the fule pump in tank. After all this it went great, richened up AF @ hi boost. Still about the same hp #s but it sure does feel better!! Lots smoother through the whole rpm range.