Quote:
Originally Posted by Sedan_Clan
I track boost via AWRON when I drive my car, and during normal driving the S55 uses little to no boost at all. It's only during hard acceleration where it comes on heavy. The pic below was taken on the 241 toll roads in Orange County at about 70 MPH cruising speed (...actually I slowed down to 47 MPH to take the pic, but at 70 MPH on cruise control the boost was identical). I'm using 0 boost. It truly surprises me that your mileage is so bad.
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Exactly. Stay off boost and your mpg gets good. I chose not to since to me it’s the always accessible TQ spike that makes the S55 and that require boost, a lot of it. For the S65 it’s obviously the high rpm glory, which is only accessible, well at high rpm
. Average it all out, a lot of S55 TQ/boost vs less frequent high rpm S65 and I end up with very similar average mpg.