Quote:
Originally Posted by Stacygifford
In the insight the K20 would probably do much better for MPG If not for just reduced pumping losses. on the otherhand, The CRV world benefit from the added torque for sure though.
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Displacement is not everything when it comes to mileage, and actually it wouldn't surprise me if one could get better fuel-efficiency with a K24 instead of a K20 even in a featherweight like the early Insight. Though I'm not so sure on how the aftermarket support for Honda K-series engines deals with efficiency-oriented projects, being able to reach a similar power and a higher torque at lower RPM ranges with a K24 even resorting to a lower compression ratio sounds quite reasonable, especially matching to a higher gearing and leaner burn.