In-depth engineering processes and testing alongside leading VAG tuning/supercharger specialist, VF Engineering, and Pacific German allowed us to make this high-level vehicle’s components just as refined as the vehicle itself.
We tested the CSF intercooler upgrade with a tuned RS6 at VF Engineering using their in-house Mustang four wheel dyno. In doing so, we were able to see real world abuse on the stock intercoolers by starting with a tuned RS6, performing several back-to-back dyno pulls with 50 seconds cool down in between pulls (1-minute intervals with 10 second pulls). We then flashed the car to the OEM tune and ran the same back-to-back pulls on the dyno. Once we had the data collected for the OEM intercoolers, we removed the bumper cover and swapped out the factory units for the upgraded CSF intercoolers, and immediately tested the car again using the same methodology and controlled testing, with a OEM tune and then flashing onto the vehicle, the VF Engineering Stage-2 performance tune.
The dyno cell was 8°F warmer in the afternoon, during the testing with the CSF intercoolers installed, than the morning tests of the OEM intercoolers. However, we saw a huge improvement despite the warmer conditions. With the OEM intercoolers, the temperature rose 20°F on average every pull on the dyno. With the CSF intercoolers, the temperature dropped 4°F on average every pull on the dyno. Some pulls at peak temperatures were 30°F cooler with the upgraded CSF intercoolers compared to the OEM units. The OEM intercoolers began to show signs of heat soak around the 3rd pull, however with the CSF intercoolers recovery was nearly instant and showed minimal signs of heat soak even after the 5th pull.Tyler Setterstrom, Lead Technician at Pacific German
These two graphs show the comparison of OEM (Left) and CSF Intercoolers (Right) with a factory OEM engine tune on an Audi C8 RS6. As you can see from the graphs above, the OEM intercoolers start to exhibit heat soak early on in the testing, already starting to affect performance on the 3rd dyno pull. IATs go up with engine speed. With the CSF intercoolers, the temperature drops as engine speed increases, and recovery between dyno pulls is very quick.
The second set of graphs compares the OEM (Left) and CSF Intercoolers (Right) with VF Engineering Stage-2 engine performance software. In these graphs, like the previous ones as well, the OEM intercoolers allow for heat to rise as engine speed increases. With the CSF Intercoolers, the intake air temperatures drop as engine speed increases. IATs are much more stable with the upgraded CSF units compared to the OEM intercoolers.
Maximum performance, increased recovery speed, stronger design and more power – another industry-leading design, exclusively by CSF.