OEM Tach vs MegaTune
 

Is this just my car, or has anyone else noticed the OEM tach is way off compared to MegaTune?

Mine is off to.
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anyone else notice the thread started two days ago on this same topic?


https://www.miataturbo.net/forum/t30952/

I didn't notice, but I just went through the tread, and noticed my situation is the same as the one you described. And its not a new phenomenon, I didn't worry much because I didn't think a stock ECU Miata would out rev an Integra GSR.

I'm running stock size wheels, so I think the gauge is just off, and the MS is accurate.

lollerskates

Go look at my update in my thread.