Quote:
Originally Posted by jystorey
F-127,
Is your PSOM (speedometer) calibrated for your tire size?
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Yep, tire size is within about 2mph at 65mph. It seems kind of strange, because I could swear that ocassionaly it has grabbed the right speed(like 3 times in the 4-5 months with my tunes on it), and it seems to do that only after the chip has been re-installed. Additionally, if it does grab the right shift, its like it goes through the shift schedule once and then its back to being ~20% over. Yeah, I know, sometimes I think this about myself too: 
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Thomas H.
'97 F-250 CCSB 7.3L Auto, Gauges, Modded H2E, 285/200% sticks, 7.3L IC, Stealth Dual HPOP, Pheonix chip
'03 F-250 CCSB 6.0L Auto, Gryphon CTS, FICM tuning by PHP, Powermax
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