Unit 5302- They do enter your engine size into the computer(of the car stock). I was thinking that if you hooked up a four banger or v6 to the dyno it would have a lot less emission than a 302. Maybe this would trigger something in the state computer system? I'm paranoid about this stuff.
So would it even matter what type of car I used as the "dyno car"?
I thought that a honda(or other small displacement) would easily pass and mustangs and others would struggle by. Is this just a myth?