Don 95Vert
Founding Member
I agree with Kevin on this. This is true ESPECIALLY with a turbo car - you'll never see the boost you will on any dyno as you will on the street and you will never load the engine like you will do on the street. We used a Mustang dyno which is an Eddy current dyno and it does NOT load the car like the street does. We ALWAYS do turbo cars on the street, than if the owners wants, we check it on the dyno.
We tuned a turbo Gen 2 Lightning a month or so ago that made 800/800 - we dialed the tune in on the street - got the AFR to 11.4 or so on the street. Then we took it to the dyno to se if we could dial it in better. It was right on and the significant thing about this is using two widebands, including the one we used on the street, the AFR went from 11.4 - to about 10.9. We did NOT adjust it though because we knew it would be perfect on the street. Had we tuned it exclusively on the dyno, it'd have been too lean on the street.
We tuned a turbo Gen 2 Lightning a month or so ago that made 800/800 - we dialed the tune in on the street - got the AFR to 11.4 or so on the street. Then we took it to the dyno to se if we could dial it in better. It was right on and the significant thing about this is using two widebands, including the one we used on the street, the AFR went from 11.4 - to about 10.9. We did NOT adjust it though because we knew it would be perfect on the street. Had we tuned it exclusively on the dyno, it'd have been too lean on the street.