Dyno Test #2: Stress Testing

_L3A7141EVSR heads back to the Dyno for another workout with a forced air cooling system installed.

The results of the first Dyno Test proved sufficient power and range to meet all of our goals, with run times and amperage draw being within spec. The test also showed additional cooling was needed.

Dyno test #2 was another stress run. New fans and ducting were installed to force air through the motor in addition to the motor’s own cooling fan. The first 13 minutes of the session saw temps rise only to 100 degrees C with a steady current draw of 350 amps. The car was then lowered to  275 Amps for the remainder of the session. Temps stayed below the 110 degree C threshold.

A second session was run to verify results while using external, auxiliary fans to test if more air was needed. During this test, temps were able to be controlled to 100 degrees C with more air.

For the last session, the car was run to 4500 RPM with a dyno load of up to 30%. The new cooling system was a huge improvement but will require more refinement. We left the dyno confident, and have no concerns that we have a solid car capable of meeting our goals.

Data and controls for the Dyno allowing Entropy to simulate load on the car

Data and controls for the Dyno allowing Entropy to simulate load on the car

Dale monitors temps while Ryan looks on and Charlie mans the controls

Dale monitors temps while Andrew looks on and Charlie mans the controls and Chris records data

The test concluded that the car is more than able to race at a competitive level with more than enough range. The controller programming was also refined for cutoff and de-rating to insure battery safety and car safety.

Entropy Racing has been a leader in the sports racing world for over 15 years and continues to provide racing services to all types of race cars. For more information, visit www.entropyracing.com or email info@entropyracing.com