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Old 04-25-2010, 07:44 AM   #11
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Originally Posted by bowtieguy View Post
that is debatable in regard to mpg increases. HolyCow prolly has something in his signature suggesting that increases are only reached under wide open throttle using K&N. also there has been some debate about them adversely affecting MAF sensors.
well I think I just figured out he has a map sensor instead of a maf, maybe get a better oil filter(purolator pure1) to make up for the extra stuff k&n lets through, lol
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Old 04-25-2010, 07:45 AM   #12
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I always suggest tire psi first.

Next, get your car tuned up, and I mean well.

New filters, fluids, plugs/wires, pvc, etc.
pcv... positive crankcase ventilation
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Old 04-25-2010, 08:54 AM   #13
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Only if you over oil them.
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Old 04-25-2010, 10:52 AM   #14
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Quote:
Originally Posted by bowtieguy View Post
that is debatable in regard to mpg increases. HolyCow prolly has something in his signature suggesting that increases are only reached under wide open throttle using K&N.
In my meta-sig (click the link in my sig), I have links from the US EPA and an independent experimenter (who also provides a plethora of other useful info) showing that even a seriously clogged filter doesn't reduce fuel economy.

I think that even with my WOT technique I wouldn't lose any FE. WOT at low RPM is still a small fraction of the flow that a stock paper filter is designed for.

A K&N might help FE in a race, but not under normal or hypermiling conditions.
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Old 04-26-2010, 01:44 PM   #15
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Thanks for the tips, I haven't recorded my mileage lately, I used to on just about every tank. I still reset the trip so I have a rough guess. Anyways the most I remember seeing is 27mpg combined which isn't too bad at all. I'd love to get it to 30 or more average. I'll be updating my gaslog soon
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