The Baseline 996TT: The baseline 996TT dyno test that we use for all of our comparison charts is a very optimistic 996TT. Typically the stock 996TT numbers are in the 370-380 Wheel power range while the stock GT2 & X50 cars are in the 415-420 range. We chose to use one of the highest 996TT dynos as our baseline to be very conservative with our comparisons.

How most dyno facilities conduct their testing: Dyno testing is not as simple as securing the car on the dyno and running a few runs. Most dyno facilities throughout the US were set up as additional profit centers for their already established automotive business. With this being said, time is money and the quicker they can dyno test your car and get the next one in, the more profit the dyno generates. This is a fine way to make money however dyno testing takes a lot of time, many runs to gain accuracy as well as experience with this car and over $10K of data logging equipment to insure accuracy. It is very hard to obtain real results in 3 short runs in the course of a few minutes. Most dyno facilities do not have adequate cooling, adequate ventilation and experience with Porsche cars let alone a 996TT. Experience is crucial when it comes to obtaining accurate data.

How we dyno test to obtain accurate results: In order to get the feel of any new vehicle that we put on our dyno, it may take 6-10 runs to get a feel for the car in the specific conditions with the specific upgrades that the car has. It may take close to an hour to really grasp how the car makes repeatable power. This may mean that the car has to cool down for a considerable amount of time and re test to see if the actual baseline runs were accurate due to the temperatures of the engine components. THIS IS VERY IMPORTANT. Anytime we dyno test a vehicle to gather accurate data, we data log the engine functions with a $10K factory Porsche PST2 scan tool. This tool allows us to monitor oil temps, intake air temps, coolant temps, MAF, knock activity / knock retard, O2 volts (AFR), fuel trim, timing, injector time, boost, throttle angle, and over 50 other channels to gain accurate data. Without this tool, the experience to use it and the experience of over 2000 dyno runs with the 996TT, it is nearly impossible to obtain accurate data with 3 dyno pulls in the course of 20 minutes on the dyno. We have a state of the art facility with proper ventilation and proper cooling to dyno test these vehicles which helps us obtain accurate results. Our dyno facility is not set up as an additional income stream for our company, rather a very important research and development tool we use everyday to test our customer’s cars, company cars, test and retest everything we engineer and manufacture that is designed to change the power of a car.

Our dyno facility: In order to achieve accurate results besides what you have already read about in the above paragraph, it is crucial to have adequate cooling and ventilation for the car while on a stationary dyno. When we are testing vehicles in our facility, we will reach speeds of 130 MPH and may reach speeds of up to 180 MPH while the car is strapped to the dyno. While high speed / high load is good for testing, this can be brutal for an engine that is use to having this amount of air flowing through the radiators, intercoolers and engine compartment in order to keep it cool. This is another crucial element when dyno testing. 

Most dyno facilities have a few floor fans to feed air through the radiators during testing which will replicate about 5-10 MPH of airflow over a very small area of the car. This type of inexperience and inadequate equipment can prevent obtaining accurate data as well as actually damaging your car. When we test in our AZ facility, we have 2 factors to consider when cooling the vehicle for testing. The first is our summer climate. Our climate in the summer is one of the most brutal climates in terms of heat. Our dyno facility can reach temperatures of 115 degrees which is fantastic for high temperature endurance testing but difficult to control high engine temperatures. Our dyno methods in the summer months are completely different for obtaining accurate data as compared to the winter months. We may take 3X as much time in between dyno runs to stabilize the engine temperatures to repeat the procedure as compared to winter testing

The second factor is our cooling / airflow equipment. We have spent nearly $5K on our main 5HP, 3 phase electric cooling fan. This fan is capable of replicating wind speeds of up to 60 MPH which is not 130 MPH but it is 10X better than most other fans that you will find in other facilities. In addition to this high flow main fan, we have 5 additional industrial grade 60 MPH scroll fans that are designed to concentrate direct airflow to cool the 2 intercoolers, 2 outside front radiators and engine compartment. With these fans in place we are able to make repeated high speed runs while maintaining close to accurate intake, intercooler, engine compartment and engine fluid temperatures which help with repeatable and accurate dyno results. Without proper airflow and cooling, power gains can vary by as much 60 HP on high power cars and 20 on stock power cars.

About the Mustang AWD500SE Dynamometers: 

One very important final thought to consider when dyno testing: If all of the procedures, ideas and techniques are considered and implemented from the above information, the only power figure that matters is the difference between stock and modified. If your dyno figures show the car makes 320 WHP stock and modified it makes 460 WHP, then the net result is still the same as our 380 WHP stock and 535 WHP modified.