cosmo
Well-Known Member
True, but if you're building boost while cruising something is wrong with your tune haha. It requires an incredibly low amount of horsepower to cruise, no boost should be demanded by the ECU.I have a Focus ST, i.e. the turbo 2 L.
Turbos only improve efficiency from a standpoint of power, in essence it makes minimal to no impact on the highway because you're only driving NA. If anything, whenever you add forced induction you need to feed in more gas to balance the fuel:air ratio, hence turbos typically result in fewer MPGs as compared to the same engine purely NA.
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