Does anybody have any insight on JDM 2.3 liter auto transmission gearing and final drive ratios. I did the engine/tranny swap on my 98 Accord and it purs and shifts perfectly, however, I noticed that at about 80mph I am only travelling about 72ish....On the low end while accelerating its not off that much but progressively gets to be about 10mph off at the higher speeds. I swapped all my sensors over from my old tranny, and am just curious if there may be a "fix" for this speedo issue....I am kinda digging the lower gearing, just wish the speedo was correct..TYIA

 

I don't know if they make them for cars, but a speedo healer is what i used on my bike.