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Old 12-10-2014, 03:45 PM   #9 (permalink)
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Join Date: Apr 2012
Location: Ann Arbor, MI; Madison, WI; Bloomington, IN
Posts: 10

Vansquish - '06 Mazda Mazdaspeed6 Grand Touring
90 day: 32.63 mpg (US)
Thanks: 1
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I've installed a new turbo, a new intercooler, a new intake, a new fuel pump, and have cleaned my intake valves (DI engines are terrible in this respect).

Since the turbo went in, I've managed slightly better fuel economy than before. I'm now averaging about 31mpg with 2 people in the car (I'd see closer to 29 before), and in excess of 35mpg on a more regular basis than ever before. I've also seen my combined fuel economy average increase to around 27mpg (which is 2mpg higher than the OE highway fuel economy estimate).

The car is also making ~352awhp/360awtq, up from 289/335 just before the turbo swap.
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