Quote:
Originally Posted by Pete_vB
On most autocross courses I think a FMIC is likely to slow you down. Slightly more lag due to the larger volume of air to compress after the turbos (it's there, even if you don't feel it), more weight on the nose increases both understeer on turn-in and oversteer on exit, and reduces acceleration whever you're traction limited (which is a lot at the autocross). You're also probably not on the throttle (or on course) long enough for heat-soak to be an issue, and the extra weight will hurt cornering, braking, transitions, etc everywhere, which is where time is made. Could the extra power overcome this? On most courses I don't think so.
So whether the intercooler benefits "massively outweigh" the negatives depends on usage. Drag racing, sure. In a number of other cases I don't agree, however.
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Tracking = road course, in my opinion
Not to mention I was specifically responding to the op commenting that he frequently did hour long drives consistently at high rpm. Nothing to do with autocross.
Again, I seriously doubt anyone could notice 10 lbs at the front of the car. Swapping to different tires would equal 100x more of a difference.
As far as lag goes, depends on the setup. I have noticed zero lag when using ets on my prior 335i 6mt. Stock or tuned.
If you are focused on the 1m as a focused auto x car I think one would be missing the point. And if you are more concerned with 10lbs at the front end than high iat and related detonation, well, we will have to agree to disagree