Quote:
Originally Posted by Vezna31
I just returned from Lagune Seca and can verify the increase in performance with my K & N. I went from consistent 103 on the front straight to consistent 108 on the front straight all while being on crappy Bridgestone RE750's
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I'm sorry, but that is hardly thorough proof, unless you are a very experienced driver.
As an example, before I had my S2000, I was driving a Mazdaspeed Protege. At Gainesville Raceway one day, I had fairly consistent exit speeds from the chicane after the decreasing radius sweeper in the 40mph range. 1 month later, I went back with no differences other than a different BOV. My exit speeds were closer to 45mph then, and had dropped my lap times by around 2 seconds on average.
Did the BOV make me go through the turns faster? Of course not. After reviewing recordings from my in-car camera, I determined that I simply was apexing the decreasing radius later which allowed me to turn much less sharply through the chicane.
My point is that, unless you have a lot of seat time on a course, small changes are mostly negligible as an increase in driving skill or track familiarity. I'm not saying it's impossible, I just doubt that the intake was the one distinguishing change.
Also, were both setups (OEM vs K&N) done on the exact same day, with the same temperature, humidity, track conditions?