Any fast cars up here?

[.RJ]

Holy shit RJ. You're just wrong. Get over it.

End of discussion unless you want to try and tell us why a dyno that measures power at the hub is better than a dyno that measures power at the wheel.

Whatever you're smoking, please pass it over

If you're just using the dyno to get numbers I say you are wasting your time. The numbers themselves do not mean anything - the deltas between what you had before and what you ended up with are whats important, especially with tuning. The A/F ratio doesnt matter as much since you cannot always tune to a specific ratio - there are too many variables. The dyno will show changes in the A/F ratio along with changes in torque and you can look at how much ignition the ecu is pulling out (knock). Again - just a tool, a part of the big picture. Use the tool to get the desired results - reduction in lap times, ET's at the strip, driveability, and so forth. Generating "xxx HP" on the rollers doesnt say jack chit about the state of tune or how well the motor will do. Thats why I said if thats all you're looking for then load it up on a dyno jet and spin the rollers - a calibrated dyno jet seems to be the de facto standard when talking about peak numbers.

IMHO, a loading (as opposed to interia) dyno is a more accurate tuning tool because it gives you more options when tuning. Want to tune low rpm, heat soaked, high load where knock loves to hide in the timing maps?