Speedometer Chart (For you guys that had 17" stock wheels, and upgraded to 20" stock wheels)
#1
04-10-2008, 03:38 AM
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Speedometer Chart (For you guys that had 17" stock wheels, and upgraded to 20" stock wheels)
i was one of them. i had the stock 17"s with my ram st. upgraded to the stock 20" chrome clads from someone with a sport model. i still haven't fixed speedometer. but yea, here's what i figured out.
the difference in diamter was causing my speedometer to read 8.2% slower...which is quite a bit.
the difference in diamter was causing my speedometer to read 8.2% slower...which is quite a bit.
#2
04-10-2008, 07:50 AM
RE: Speedometer Chart (For you guys that had 17" stock wheels, and upgraded to 20" stock w
And you can take it to the dealership and have the computer flashed to correct the problem. Also corrects the shift points to compensate for the larger rolling mass.
Some guys end up getting charged for it .... some don't depends on the dealership & when (how
) you ask.
Some guys end up getting charged for it .... some don't depends on the dealership & when (how
) you ask.
#3
04-10-2008, 11:01 AM
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#4
04-10-2008, 11:04 AM
#5
04-10-2008, 10:01 PM
RE: Speedometer Chart (For you guys that had 17" stock wheels, and upgraded to 20" stock w
Man .... just dont feel like trying to figure that chart out ... rather use http://www.miata.net/garage/tirecalc.html
