That's a great question! At Truth Dyno and Performance, a "tune" is adjusting fuel, spark, air, and electronic transmission parameters to optimize drivability and performance.

General Tuning process:

• Starting and idle
• Drivability and acceleration
• Full throttle
• Transmission shifting (electronic transmissions with factory ECU or Holley EFI only)
• Power optimization/dyno tuning (if desired)

When we tune a vehicle, we expect that all systems and sensors are functioning as they should. If the fuel system, ignition system, valve train, etc. are not working as expected, then the tune will not be successful. If we find issues with this area, we will have a discussion to determine if you would like to address these issues at an additional cost or you would like address them yourself and return the vehicle later to complete the tune.

Therefore, whatever you can do to ensure these systems are functioning prior to bringing your vehicle to us will make the process smoother for all of us!

Yes, if the vehicle is running a Holley EFI system, we definitely tune power-adder cars with blowers, turbos, and nitrous. Contact us to discuss your application. We do not tune power-adder cars with factory ECU. There are simply too many complexities involved.

Anything GM from 1950-2015. We also do some early Ford and Chrysler work as well. Bottom line is that we need to feel comfortable working on your vehicle. If it's not something that we're comfortable with, it's not going to be a great experience for us, you, or both!

Anything with a Holley EFI system, including Holley Dominator, Holley HP, Holley Terminator X, Holley Terminator X Max, Holley Sniper, and Holley Sniper 2. We've even done boats with Holley EFI installed! We also do GM LS Gen 3 and Gen 4 (1997-2014) engines, whether that's a "LS Swap" or factory engine. We also do muscle cars, drag cars, street rods, hot rods, etc. The majority of our background is in GM vehicles from the 1950s through the 1970s, but we also do other American brands too. Can also adjust carbureted vehicles and tune jetting and acceleration on Holley carburetors.

Dyno testing is a measurement technique that assesses a vehicle's performance by evaluating its horsepower and torque using a dynamometer. This process yields critical data about the engine's efficiency and power characteristics, enabling detailed tuning and optimization for enhanced performance. Through this analysis, any potential issues can be identified, ensuring your vehicle runs at peak condition.

Dyno testing provides valuable insights into your vehicle's performance, helping to identify issues, measure power output, and fine-tune engine components. It allows owners to see the impact of modifications, whether it's new performance parts or tuning adjustments.

Yes, dyno testing is safe when performed by experienced professionals. At Truth Dyno & Performance, we carefully monitor the testing process, ensuring your classic car is treated with the utmost care to prevent any damage!

If you are bringing your vehicle to us, we will use the dyno to test the maximum horsepower through a series of progressive dyno tests or "runs". These tests will start out light and progress from there. We will be monitoring your vehicle for any signs of stress or issues and if we feel based on our experience that the testing may be harmful, we will not continue.

If your vehicle is 1996 and newer with the factory computer, make sure you know where the OBDII port is located.

If your vehicle is equipped with ABS and/or traction control make sure you know how to disable those. If your vehicle is equipped with all-wheel drive, make sure you know how to disable that as well. Sometimes disabling these features requires pulling fuses from the fuse box. If that is the case, make sure you know how to locate them.

Yes, it’s important to ensure your vehicle is in good working order. Check fluids, tire pressure, and make sure any modifications are secure. Additionally, consider getting your vehicle aligned beforehand, as proper alignment can enhance the accuracy of the dyno results. Ensuring that all systems are functioning well will help achieve the best performance measurements and identify any potential issues during testing.

We use a Mustang MD-150. Complete information can be found here.

Yes, you will need to sign a waiver acknowledging that you understand the risks and that neither Truth Dyno or it's event hosts are responsible for any damage. A copy of the waiver can be found here.

Street tires work best. Soft compound tires do not work very well and the rough roller surfaces may cause wear. Drag slicks do not work well due to the soft compound and wrinkle-wall design. Most drag slick manufacturers DO NOT RECOMMEND running them on a chassis dyno.

Dyno tuning can reveal various problems, such as fuel supply issues, air intake problems, or ignition timing errors. These issues, when left unchecked in an uncontrolled environment, could lead to catastrophic engine damage.

If a problem is detected, like a fuel supply issue, we recommend addressing it immediately. In this scenario, the vehicle would need modifications, such as installing a new fuel system, before retesting to ensure optimal performance and safety.

Yes

We can only test AWD vehicles in rear wheel drive. The dyno can only accommodate 2 wheels spinning.

No

Up to 80" wide from sidewall to sidewall of the tire. This covers most trucks with the exception of duallys. Maximum axle weight is 6000lbs. Once again, almost all vehicles.

The Mustang MD-150 dyno has a maximum horsepower capacity of 1200hp. This equates to roughly 1400-1500hp at the crank. It also has a maximum top speed of 165mph.