Quote:
Originally Posted by cRiPpLe_rOoStEr
Fewer temperature and charge air pressure, leading fewer fuel to vaporize.
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Right, but I would not think a 10 degree difference in the intake temp would increase mileage nearly 10%. Peak IATs were the same, just took longer the one log to get up to temp being slightly colder that day. If that small drop in IAT made that big of a difference I need to do a lot more work to dropping my IATs since I have been typically running 40-50 degrees over ambient with light cruising. My coworkers 1000hp CTS-V will run that hot only under boost so something is not quote right with my intake setup and there are possible major gains to be had.
This weekend if the wind finally quits I am going to do some back to back at 50mph and see what happens then. And if I notice the increase again in the smaller filter, I might go one set further and try a stock sized throttle body over my 92mm aftermarket one I have.