Background:
Continuing to create some benchmarks for comparing FMIC options a bicooler combination of the Neuspeed FMIC and AMS stock location is recorded during a series of six (6) pulls.
Note: The standard for the FMIC comparison is a minimum of nine (9) pulls. Six pulls were made because the combination of two aftermarket intercoolers is outside the scope of the systems under test. Still, I wanted to have the data for comparison and this setup was on the GTI at the start of the project.
Test Procedure:
The details of the FMIC test are shown on the test comparison page.
Test Results:
The first chart shows the trend of the delta IAT over the series of pulls.
Delta IAT is the difference between the Intake Air Temperature (IAT) and the Ambient/Outside Air Temperature (OAT) at an engine speed of 6,000 RPM while operating at full boost.
The Neuspeed/AMS combination will be compared with the stock GTI IC in the following charts.
This chart shows the average of the delta IAT throughout the pulls.
This chart shows individual data points making up the delta IAT for both intercoolers.
This chart shows the delta IAT in a histogram format.
The next chart shows the IAT of the first and last pulls of the Neuspeed and AMS ICs, there is no comparison with the stock GTI IC on this chart.
This chart shows the average IAT across the pulls.
Next is the average temperature exiting the turbocharger throughout the pulls.
Next is the average intercooler cooling efficiency throughout the pulls.
This chart shows the average pressure drop between the turbocharger compressor outlet and the intake manifold.
The trend of acceleration times using the Neuspeed and AMS intercooler combination is shown next.
Acceleration times are compared next in the histogram format.
This chart uses the histogram format to compare the estimated peak WHP during the pulls.
The final chart shows the variation of acceleration time with delta IAT for each intercooler setup.
Conclusions:
The combination of a Neuspeed FMIC and AMS stock location intercooler was compared with the Mk7 GTI stock intercooler using measurements made while operating the Mk7 GTI on the street.
In all comparisons, the Neuspeed/AMS combination outperformed the Mk7 stock intercooler.