Quote:
Originally Posted by Avto
I have installed them on my M3 this summer, unfortunately, we have not tested them before and after dyno. But based on our 100-200kph tests on the road we shed off our 100-200 times by 0.3s which significant gain with just the bolt-on part. I was amazed how high stft went up on the idle and the car felt very torquey on 80-120% engine loads 20-40% pedal. Fuel consumption goes up by 15-20%, thanks to BMW Valvetronic system stock smooth idle and fuel efficiency is achievable without any performance drawbacks.
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Are you on stock motor and stock turbo? Did you upgrade the valvesprings and valves? I'm trying to find out if it is necessary to upgrade the valvetrain to run this cam.