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2011-2014 Mustangs
Wheels/Tires/Brakes
Nitto DR 275/60/15 revs per mile SCT X4 input?
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<blockquote data-quote="twistedneck" data-source="post: 14164539" data-attributes="member: 130159"><p>forget about reality.. the sct really does not have the absolute number calculated in, its WAY off.. example, last year with my 3.73 and a 27" tire I had to tell the sct it was a 4.10 with 725 revs / mile. if you go over that revs per mile, it crashes and reverts back to about 600 rev's / mile even though its clearly set at 730.</p><p></p><p>I changed to a 3.15 this year with the same tire. I currently have it set at 3.73 gear and 650 rev's per mile. those numbers mean nothing, however now I can hone in on the speedo.. I got it close now just by changing the rev's / mile. at least I don't have to make macro changes with the ratio setting.. sucks we have to do a full re-tune just to change the speedo. I use a phone program to do gps speed - set cruise at 70 and see how close you are.</p></blockquote><p></p>
[QUOTE="twistedneck, post: 14164539, member: 130159"] forget about reality.. the sct really does not have the absolute number calculated in, its WAY off.. example, last year with my 3.73 and a 27" tire I had to tell the sct it was a 4.10 with 725 revs / mile. if you go over that revs per mile, it crashes and reverts back to about 600 rev's / mile even though its clearly set at 730. I changed to a 3.15 this year with the same tire. I currently have it set at 3.73 gear and 650 rev's per mile. those numbers mean nothing, however now I can hone in on the speedo.. I got it close now just by changing the rev's / mile. at least I don't have to make macro changes with the ratio setting.. sucks we have to do a full re-tune just to change the speedo. I use a phone program to do gps speed - set cruise at 70 and see how close you are. [/QUOTE]
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Wheels/Tires/Brakes
Nitto DR 275/60/15 revs per mile SCT X4 input?
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