What is the best gear to do a dyno run? 3rd or 4th?
That's a LONG pull but the most accurate. I dynoed my F355 in 3rd and 4th (recalibrating in between) and it picked up 8 RWHP in 4th, I wonder what it would put down in 5th? Rob
That's probably because most cars are equipped with 5-speeds making 4th gear closer to 1:1 ratio. In a 6-speed (T-56 is an exception that comes to mind) 5th is closest to 1:1 ratio.