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This HPF M3 is still using an old school Precision 67-mm journal bearing turbo, which I believe has a P-trim hot side. You can just barely see it up in there by following the intake tube to the compressor on the right, and the downpipe coming out on the left. At 703 WHP this turbo is pretty maxed out. And, on this car which flows tremendously well, it starts to run out of lungs at just 24 PSI. The HPF M3 makes its power via a built engine, an AEM Series 1 stand-alone ECU tuned by MKC Performance, and 93 octane with a single nozzle of methanol spray for anything above roughly 10 PSI.
Since the turbo sits so low, it cannot drain back to the oil pan. Therefore an external oil scavenge pump is necessary.
A TiAL Sport external wastegate is part of the HPF Stage 2.5 kit, and it’s routed back into the exhaust for quiet operation. Like I said, it’s a real sleeper. With the new Clutch Masters 850 twin disc clutch, we know we’re getting that crazy power transferred to the wheels. The car is insanely fast. The pedal feel is stiff indeed, and it releases pretty high up–within the first few inches–making quick gear changes a snap. Slipping the clutch is no problem, thanks to the hybrid surfaces.
Let’s check out some MKC cars at the shop! Up first is this C7 Z06 rated at 650bhp from the factory—that’s 12bhp more than the out-going C6 ZR1, which had a price tag of about $110k.
This particular Z06, however, had its factory supercharger removed in place for a ProCharger system. It’s a very clean looking kit!
How much power did this Z06 put down, you ask? Find out on the next page’s dyno chart.
