I'll get right to it. Here are the results from the dyno day April 28, at four star motorsports in Georgetown Ontario. As some of you are probably already aware, we tested out two sets of intercoolers on two different cars, to get a better idea of expected HP gains with the aftermarket intercoolers.

The first car to run was a stage 3 piggie A-box, which put down 245WHP on the dyno dynamics dyno. For reference, my car only put down 297WHP that day, on the same dyno that I put down 339WHP back in August of last year. The low numbers could be due to the software changes that were done to the dyno between then and now.

For reference, a stock 1.8T B6 A4 put down 112WHP vs 132WHP last August. With the runs done last year, we calculated drivetrain loss to be at 23%. This time around, it looks as though the dyno was eating up another 10% of the available power. On my car, seeing 339 vs 297 this time around also confirms that the dyno is reading 10% lower this time (estimated 440CHP@22PSI).

As can be seen in the picture below, the red line was the first run done before the ICs were installed (.009). The blue (.029) and purple (.031) were the runs done after the ICs were installed and the car came up to operating temperature.



There are very noticable gains between 4500 and 6500RPM, with peak HP up 37HP on both runs after the ICs were installed. In the last run (3rd run post-ICS), you can see that heatsoak has started to take effect, as the power drops off quicker than in the first post-IC run. Torque is up by as much as 30lb ft at 4800RPM.


The second car to run was a very strong running AMS stage 2+ car, M-box IIRC. With this car, we see a jump from 247WHP to 299WHP on the first run post-ICs, with a cooler engine.

After the first post-IC run, we see a less optimistic gain of about 31WHP with the engine in the same operating conditions as the pre-IC runs (hot engine).







Interesting to note that peak HP on the stage 2+ and stage 3 car were similar, although it can be clearly seen that the K03s fall flat on their face (if they had one) past about 5300RPM. At 6500RPM, the not so strong stage 3 car is making 40WHP more than the stage 2+ car.

These dyno numbers confirm that the numbers seen on my car back in August of last year were not inflated in any way. I'll post a video of some of the runs shortly.