Join Date: Jan 2002
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Re: bigger tire questions
I ran my old MT's at 25, and now im running my MTR's at 30. The 35's had no impact on my mileage (unlike the lift) so im assuming that its a good pressure (at least for the winter). Perhaps in the spring ill try to go lower on the street.
Im assuming that the 80-86 uses the same speedo calibration as the 87-91? Dont see why not. Its actually really easy to do. I went to ford, said i swapped from 3.08 to 4.10 and that it was X (about 15 in my case, IIRC) mph fast. he came back in about a minute with a new gear, that is about as dead on as i can possibly ever get it (20 real miles= 20.1 on the odometer). I only had to change the gear that clips onto the speedo cable, and not both like i had originally figured.
Also, I determined my speedo error by mile markers, and one of those police trailers that tell you your current speed.