SCT and tire size. - Diesel Truck Forum -
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post #1 of 3 (permalink) Old 12-04-2006, 12:33 AM Thread Starter
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SCT and tire size.

What Rev per mile should I put in the SCT for 35" tires? The Stockers were 33 and now I am running 35" I can start at 500 rev per mile and go up by 5s.
I hope once I get it set correctly It will cure the surging from 1800 RPM to 2000 RPM @ 65-70 mph and also at about 35 mph it is surging. I am running the Xtream tune from ID.

2006 PSD 4X4
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post #2 of 3 (permalink) Old 12-04-2006, 04:44 AM
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According to the calculator I found....35" tire=570 revs per mile.

'04 F250 FX4, CC, SB, Zoodad, Innovative SCT XCal2, 4" MBRP, Airaid intake, 4" Superlift front with 5.5" Fabtech springs in back with stock 2" block delete, 18" predators with 35" Nitto's, Isspro gauges overhead. '00 27' Rinker Captiva Millinium, 454MPI Captains Call exhaust. '06 '33 Tahoe Transport. '03 Polaris Predator 500, K&N, WB pipe, '08 Polaris Outlaw 525 S.
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post #3 of 3 (permalink) Old 12-04-2006, 08:02 PM
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measure the circumfrence of you tires in feet then divide by 5280
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