Actually this car was indeed road tuned. Whenever I road tune, I use a wideband O2 sensor as well as my own proprietary Road Dyno software (that's where these graphs are from). As long as the road dyno is operated propperly and the pull is performed on very flat road, the numbers it produces are extremely close to what is seen on a Mustang chassis dyno.

As far as road tuning vs. dyno tuning, IMO both have their own advantages. Dyno tuning is very convenient in that you don't need a wide open road with very little traffic and thus it can be done in just about any location. Dyno's are also very good at precisely measuring the power output of the car, while Road Dyno software requires that a bit more care is taken (in the form of using a completely flat road and propper calibration settings) to keep numbers accurate and consistant.

Road Tuning on the other hand allows for the tune to be performed under the actual conditions in which the car will be operating every day. While a dyno can come close to simulating real world conditions, some things such as air flow and load are never simulated perfectly. In that aspect, a road tune can actually provide a smoother and more consistant tune than dyno tuning alone.

The best overall tunes are actually a combination of road and dyno tuning. This allows the tuner to get a good general tune on the dyno where its convenient and overall power levels can be seen and then smooth out any inconsistancies on the road. This sort of tune is only really necessary for heavily modded cars, however, and for basic mods, either a just a road tune using the propper tools or a dyno tune with a little road testing afterwards is more than sufficient to provide a good tune.

Please let me know if you have any other questions on the topic.


Thanks