Dyno Tuning?

Performance News on Dyno Tuning. What is dyno tuning and what are the benefits? Do I need my vehicle dyno Tuned? These are question we here every day from current and potential customers. Below is a standard dyno run what does it tell you? Most people it says your car makes 285 RWHP. Well it tells you much more than that. Think about what the graph says about the motor in this car. We will give more details and answer these and other questions later this week. For comments please post to the EFI Tuning forums on our site.

1st off you can tell if a dyno graph is legit by checking something simple and easy thier is a mathmatical rule for engines and basicly it says that at 5250 RPM's the torque and horsepower are the same. As you can see they do right around there. This car makes 285 RWHP @ 5450 RPM's, which is good for a stock vehicle with a few bolt on items. But the most important thing on this is the torque, this motor is maintaining over 275 RW Ft/Lbs of torque from 2800 RPM's all the way to 5400 RPM's that means that this car could be heavy and still run a respectable time. If the ignition timing was not right you would notices a sharp rise in torque instead of a flat curve.

Back to more of the orginal questions. What is dyno tuning and what are the benefits? Do I need my Vehicle dyno tuned or a "custom tune from one of the many magazine adds i see"? This vehcile is an 06 Mustang GT with a 5 Speed it has a few bolton items, air kit, no cats, cat back exhaust, and underdrive pulleys. This was the last dyno run, which was made for the customer for a baseline, so they would know where they are. Does this car need a custom tune? The answer is maybe (if you want to pay for it) the tune in this car is a base SCT file in the tuner, the ignition timing is conservative and the a/f is right at 12.4-12.8 to 1. If this car was to have a custom tune done by our shop on our dyno the peak horsepower and torque numbers would only be 3-5 higher than what they are now. You would howerver notice that the lower or average horsepower and torque numbers would be up anywhere from 2-8% in the lower RPM ranges. The diference on the strip maybe .15-.28 if the car had a really good driver and no wheel spin. This would be achieved by holding the enigne at particular RPM ranges and dialing in the a/f ratio, ignition timing and cam timing to build the most torque. Why Torque? You will have to check back later for that.