The core fits in the stock location and requires no modification to the radiator pack assembly. Cooling is radically improved. Our test Golf Mk7 GTI achieved 16bhp more without any other modifications whilst also demonstrating a consistent 25-30 deg C (77-88 deg F) temperature drop over stock on the dyno, with all runs performed on the same day with only a 2 deg C variation in ambient temperature over the runs (in fact it was 2 deg C hotter when we tested the Forge core).
You can see the dyno pulls for the Golf for the stock car and with our intercooler fitted You can also see the temperature drop comparison of the stock and Forge cores - click on the image for a closeup.
The stock core typically increased in temperature by 5 deg C on each subsequent run, with heat soak becoming a real issue after only three runs. The stock ECU was pulling timing and boost after only one run – typically anything over 40 deg C inlet temperature will cause the ECU to change ignition timing to suit – and the stock core peaked at 60 Deg C on its first run, where the Forge core was able to get temperatures back under control after each run so that by the end of 4 back to back runs the core temperature had only risen by 4 degrees C.
All of this was achieved on a stock car (it should be noted that although Volkswagen claim 220bhp for this new engine we have seen examples range from 230 to 240bhp completely stock, on the same rolling road). At the time of writing there are no software solutions (other than tuning boxes) available to really test the car or the intercooler, but we are confident that the core will continue to deliver a much lower intake charge temperature than stock across all states of tune, as its based on our award winning Mk5/Mk6 intercooler which has been fitted with great success on everything from road and track cars, to full blown race and drag cars.
The core comes in a satin black light powder coated finish, and includes all mounting hardware necessary for installation.
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