easy mpg increase?

[razr_88]

ok imagine it this way, is it easier to suck a milkshake through a coffee stirrir, <1/8 " or through a straw that is 1/4 inches in diameter?

takes more energy to suck it through the coffee stirrer... correct? if not explain to me why this is not the case.

if it takes more energy to suck it throught the small one, were do you think that sucking energy comes from? i can tell you it doesnot come from pixie dust.... it comes from the negative pressure caused by the pistons set in motion by the fuel. the leeching affect... easier to suck it in, the less energy is dedicated to sucking it into the intake.

[dmanlyr]

Originally Posted by razr_88

ok imagine it this way, is it easier to suck a milkshake through a coffee stirrir, <1/8 " or through a straw that is 1/4 inches in diameter?

takes more energy to suck it through the coffee stirrer... correct? if not explain to me why this is not the case.

if it takes more energy to suck it throught the small one, were do you think that sucking energy comes from? i can tell you it doesnot come from pixie dust.... it comes from the negative pressure caused by the pistons set in motion by the fuel. the leeching affect... easier to suck it in, the less energy is dedicated to sucking it into the intake.

Ok, well your reasoning would only be 100% true if you were running the engine at the highest operating RPM. AT NORMAL RPM LEVELS such as cruise and acceleration, the FACTORY COLD AIR INTAKE sytem is not the restricting intake component. It is the intake valves.

However, as stated previously, if you increase the RPM potential of the engine, such as changing the cam, etc, then the stock factory CAI MAY become a restriction, but ONLY at those higher RPM's, NOT at your normal cruise or accelerating RPM's.

Do you normaly run your engine at 4500 rpm or more? Hardly. And if you were, then you kill your fuel mileage. However that is where the aftermarket CAI's come into play with the ability to pass more air flow AS DICTATED by the HIGHER rpm.

No offense Raz, but you said it yourself, you wanted to dramaticly increase your fuel mileage, but not spen much money. You can not get there from here with those restrictions. Yes, you can drop the final drive ratio, but if you were to save only the theoretical $85 a year (once again your calcalations) with a two MPG increase, it would take you more than 10 years to repay the cost of changing the final drive ratio.

If it was a easy as flipping a switch or removing a screen the factorys would do it, especialy now that fuel is at a premium price.

Now, don't take offense, but I'll bet you that $85 that if I was able to observe your driving habits I could probably point out where you could save more than that by simply changing your driving habits. And secondly, if it really comes down to $85 a year, then to be honest and please don't take offense at this, but you can't afford to drive a car. It costs more than that in other costs such as repair, insurance etc.

I agree totally with you that there are better things to do with one's money than spend $3.50 a gallon for fuel, but this is the reality that we ALL were WARNED about in the 70's. It is also why you could buy a new Honda Civic in the early / mid 80's that was rated at 67 MPG hiway, YES 67!!! abd 55 MPG around town. YES 55!! You had to shift it yourself, it was small, and had 47 hp, with a top speed of 85 mph, fast enough to get you a ticket in any of the 50 states. Or, if like me, you prefeer to drive and support America, a Diesel Chevette at 55 MPG hiway. BUT like most Americans, I chose to drive a less efficient vehical so they stopped making that type of car, at least in this country.

But remember, we are dealing with a limited resource as we learned over 30 years ago. Guess the lesson was forgotten.

David

[razr_88]

but you fail to realize that i love my olds.... i don't know about you but simply switching to a different car is not something i really desire to do.

i read something about install a vacuum gauge to measure intake manifold pressure and then using it to help adjust driving habits, by watching the load on the engine or something.... is this true?

one last thing what if the auto companies and gas companies were working together, cuz everyone knows they are. it's worse than the enron scandal.

[dmanlyr]

Razr - for all of the discussions, I sure agree with you on the Olds - it is why I keep mine and just pony up the $$ to keep it fed. (I pay for the galffriends fuel also) Double $$ $$ lol Of course I had to give up any sort of a vacation this year because of the fuel costs... so I sure feel the pain also!

David

[olds8894]

I realize that the gas prices hurt all of us in the pocket book, but the way I look at it, its gonna happen. I'm not going to stop living and enjoyin my life because of gas.

[razr_88]

i don't really let it bug me, i just love to tinker with cars and fuel economy is my project.