Solution: Speedo calibration, details inside Options

[snapshotgt]

It looks like my speedo is reading on the high side. I am using the e153 tranny out of a 99 Solara. I also have bilstein struts, tein springs and 7th gen GTS wheels with 205/50/16 tires.

Four sources of evidence of possibly reading high:

1.) GPS is reading ~10mph slower

2.) OBDII reader from the solara is reading ~5mph slower

3.) I can be crawling at a snails pace and it reads obviously high

4.) When slowing down to a stop, needle can make un-flowing drops down in speed, does not look very accurate.



Please post your thoughts and suggestions. I'm looking to fix this and get it as accurate as possible. Anyone running with a e153 tranny swap please post your experience. Thanks-

[Silver94CelicaOw...]

DO NOT change over to a speedo sensor with a different tooth count!!

You will strip all the teeth off the slave gear for the speedometer inside the differential because it will not mesh properly, and you'll have to open the whole transmission to fix the issue. It sucks, I've seen it done and its very ugly.



I think that Dakota Digital unit would probably do the trick, you would just have to break out the OHM multimeter and sort of dial in the correct resistance needed to compensate to the correct reading.




-Corey