sct and speedometer - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 7 Old 09-23-2009, 09:45 AM Thread Starter
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sct and speedometer

does changing the revs per mile on my sct correct my speedo reading? just went from 265/65/17's to 275/65/20's and really like it.
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post #2 of 7 Old 09-23-2009, 09:48 AM
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No it cant. Ford can. Or you can get a superlift truspeed.

Email: Dave@powerstroke.org
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post #3 of 7 Old 09-23-2009, 09:55 AM
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not to hi jack the thread but if ford changes your speedo will it change your strategy

SCT BY INNOVATIVE AND GEAR HEAD
4in turbo back farmboys diesel
zoodad mod
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35in hankook dynapro m/t

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post #4 of 7 Old 09-23-2009, 09:56 AM
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The revs per mile only change the shifting. I wouldn't think Ford calibrating the speedo would change your strategy

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post #5 of 7 Old 09-23-2009, 10:23 AM
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It depends reguarding the strategy... If you have the most recent flash theb you should be fine. Ford cannot calibrate the speedo for anything larger than 34" tires if you have a 3.73 rear diff. I just went thru that. The options are either a mod box like the truespeed or auto enginiuity which is a code scanner that is capible of programming the abs sensor. Not sure what your new tires are size wise but my 315's on 16 inch rims are 35" and my spedo is set as close as they can at 65 on the spedo I'm going 70

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post #6 of 7 Old 09-23-2009, 02:51 PM
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mine are 35s on 18s so will i have to get a true speed through raul or what would you suggest?

SCT BY INNOVATIVE AND GEAR HEAD
4in turbo back farmboys diesel
zoodad mod
fog light mod
2.5in leveling kit
35in hankook dynapro m/t

Soon too come:
egr delete
head studs
Paint Job
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post #7 of 7 Old 09-23-2009, 03:11 PM
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If you go truspeed it will only serve one function. If you get the auto enginuity it can work as a comprehensive code scanner and scantool for the 6.0 as well as other vehicles. It would really come down to how much each will cost and how you would use it to make the total cost effective. The auto enginuity would have to have the ford liscensing which is at an extra cost. It would probably be cheaper for the tru speed but the ae would do a lot more if you plan to ever work or diagnose problems on your truck.

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2006 f250 4x4
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lariat auto
Some tuning, gauges and other assorted non factory dodads
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