Quote:
Originally Posted by EcoCivic
It doesn't seem to have changed it for the worse though as long as its shifted in a way that keeps cruising RPM above 2K or so. I installed that cam 5 years ago before I tracked my MPG as carefully as I do now, but I don't recall seeing any decrease. Even with this short gearing I averaged about 37 MPG last time I went on a road trip with a best tank of 39 MPG, which is pretty much what this car did stock but with much better performance. A couple of the people who installed this cam actually reported slight increases in MPG, but that would obviously depend on how the car is driven.
I have been tempted to reinstall the stock cam temporarily for testing because I am curious if I would still get more MPG at a higher cruising RPM with the stock cam or if that is caused by my Crower cam. I may do that eventually, changing the cam in this engine isn't at all difficult.
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For the most part it won't be a big $$$ mod anyways. 15k miles a year for the average consumer, 45% highway, 40mpg = 169gal, 50mpg = 135 gal
Diff = -34gal @$2.20 for me = $75/yr saved