Quote:
Originally Posted by Gixstars
To ordinancemarine, you say you have exceptional gas mileage w/ or w/out the IMG? what are you running? (intake, spacer, gaskets, tb, etc.)? i'm all for gas mileage
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I have all of the basic mods besides an intake (check my profile for details) and I'm able to wring out great mileage, better than many EXs and this was all with a car that hadn't had it first oil change until last week at 4100 miles. Check out the mileage thread on the Si page if you want to learn more about how to boost your mileage. I expected to see a slight reduction in mileage after installing the IMG and doing the TB coolant bypass because while cooler air does equal more available power it usually means lower efficiency. It would take some time to explain why but it has mostly to do with the fact that gasoline engines like ours have a throttle that modulates airflow.
The bottom line is I haven't noticed anything but my mileage getting better and better. All I can conclude is that a combination of my engine breaking in, temperatures getting warmer, gasoline switching to "summer blends", and me learning how to drive my car more efficiently has netted huge improvements in mileage over the past four months I've owned my car.