in milage? how much?

 

on my 94 3.slow i pulled out all of the restrictive plates in front of the air box, bought a 3"flexible plastic air ducting hose made by spectre, stuck that into the hole on the air cleaner box, dropped a k&n stock replacement filter, and now im getting 24mpg. when its sunny and rain-free i extend the ducting hose up to where the hood comes down and it has a cold air feed right there. if it starts to rain i just push the hose back down so it wont catch any water. thats basically a cheap mod that you can consider a cold air intake without the restriction. and its really no hassle at all to just adjust it when needed. the person who owned it before me said she could get 18mpg. thats with all the plates in front of the box. and just a fram filter

 

I have heard that cold air intake decrease milage since cold air has higher density= more air in cylinder= more fuel needed. A little bit like a turbo, but much much weaker effect. Im thinking, if you do something similary on a carb. you would have to get a bigger jet= more fuel ...
But, perhaps this is not correct...

 

It isn't. More air density = more cylinder filling... some additional fuel is needed to balance, given the throttle is not moved for the comparison. However, if more power is made, less throttle is needed than before, resulting in marginal economy improvements.

Inflating your tires to a higher psi would probably net as much.

 

And YOUR mileage before this mod was ?????





Fred

 

"Does cold air intake give better mileage?"

SURE! If you pick your tanks right, it can be huge!

Puhleeze people - there is so much variability in the tank-to-tank gas mileage that unless you do a significant sampling (like 10 tanks before and 10 after) it's not really a valid comparison.

How many of the people above are comparing one tank before to one after? Or better yet, their recollection of what they got before to one accurately counted tank after?

 

I would say no. Cold air intakes are installed for performance. If your looking for more MPG look someplace else. Why? Cold air is more dense (takes up less space than hot air), the more air you stuff into an engine the more fuel you will use.

 

Yup, you won't see any increase, especially on these vehicles that pass less gas than a gnat fart.

Heated air will help, as will heating the gas some before delivery.
Look at what some of the newer vehicles are doing in that department.
The newer Mustangs, for instance, have an air heater in the intake.
Hotter air and/or hotter gasoline makes for much better gas atomization which means easier ignition, better burning characteristics, better mileage and more power.




Fred

 

I gained about 1-2 mpg but I drive with a light foot (economical) unless Im showing off