[ap0c552]

I would not use K&N filter, they are not good for engine longevity.

Tests show that they filter WAY less dirt out than conventional filters. Totally not worth 1.3hp more!

K&N Air Filter Review - Debunking the Myths (and why OEM is better)

 

[ap0c552]

It does mean better efficiency. Your argument only works during acceleration. On the highway with cruise set at a certain rpm less fuel WILL be used. It's just a fact. It's stoichiometry.

I still disagree. Less air and less fuel means less power, more air and more fuel means more power. So putting less air in the cylinder does not increase to work being done by each litre of fuel. To improve fuel economy you would need to increase the amount of work being done by X amount of fuel, and I just don't think that this is the case here.

Either way fuel economy is hard to test!

You should do a bunch of acceleration tests, with an without intake, so we can learn some valuable info!

 

[ap0c552]

Warmer air = less dense = less fuel per combustion cycle = more mpg. I did go up a little on my drive home.

This does not = better fuel economy.

Less air/fuel per combustion cycle means more combustion cycles to do the same amount of work, which means no better fuel economy.

LOL Hey everyone lets just stuff our intakes to block them....we will get way less air and way less fuel and we will have amazing fuel economy!! LOL....

Right now my friend you are a complete sucker for the placebo effect. Yes I am quite sure your fuel economy and low end torque went up....except it didn't.

EDIT: What would have been smart would be to do 3 0-30mph and 3 0-60mph runs before and after, so we could have some hard stats to go on here...

 

[ap0c552]

I don't know how much it will help, might even hinder performance. You will be getting much warmer air into the intake now...