Superformance Speedo Issues

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#1 (permalink)

04-24-2012, 08:43 PM

Bannon

CC Member

Join Date: Feb 2000

Location: Montpelier, VA

Cobra Make, Engine: Former Owner of both Superformance #2666 Roush 427IR and Superformance #1601 Ford Crate 460CI - 486 HP 510 ft\lbs TQ

Posts: 347

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Superformance Speedo Issues

Hey folk,

Getting SPO2666 on the road tomorrow for a final state inspection On the drive tonight I matched my GPS against the speedo speed. I noticed that the speed is sluggish to get to 20 mph, Wants to hang at a 35mph between30 and 50mph. does not seem to go over about high 30's on the guage at higher speeds. I have the Rousch 427IR Tremec 600 and the data btr rear end

Any answers on how to fix this?

Thanks,

JB

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