sct question..
#1
sct question..
i thought id ask here maybe for a simple answer rather than call...but i thought sct x3's had an option to where you can change tire size ? if so , where do i change it at? to be honest im not sure how much i went up or down in tire diameter or if changed at all ,i had the stock 17's on before with the stock pirelli's, and i now have 18's with wheel/tires measuring at 26.5 " tall ....the only thing i see on the tuner is tire revs/mph?? is there a chart to convert this or something? am i stupid and dont see it lol?
#4
http://www.gordon-glasgow.org/tirecalc.html
use this link for your tire size to figure out your revs
use this link for your tire size to figure out your revs
#5
6th Gear Member
There are a few choices to obtain your tire RPM's. Tirerack.com lists most tire specs, you could try the manufacturer's website OR try this: http://www.1010tires.com/tiresizecalculator.asp
You'll probably come up with a few different numbers for the same tire but no worry. The SCT allows you adjust it to the nearest "10" RPM's (i.e, 740, 750, 760). If you have a GPS you can fine tune it from there.
You'll probably come up with a few different numbers for the same tire but no worry. The SCT allows you adjust it to the nearest "10" RPM's (i.e, 740, 750, 760). If you have a GPS you can fine tune it from there.
#8
thanks to the gordon glasgow link for tire calc , i was able to figure out the revs.....and the funny thing is it actually didnt change at all ! from the stock 17's with 235 /55 /17 to my 255/45/18 front 275/40/18s in the back! i didnt feel like it needed calibaration, but hell 2-3 mph off is 2-3 mph off lol !
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