Need input from other GFI'ers

Just got back from visiting the in-laws for Christmas.

Took the exact same route as always and topped off the gas at the exact same stations as always.

From Las Vegas, NV to Gardena, CA ~ 290miles

1st trip - Bone stock, brand new tC - Very light traffic, coasted on Neutral for the downhill portions. - One Full Tank (light came on as we pulled up to their place)

Return Trip - Very Light traffic, Coasted on Downhills - a little less than one tank


2nd Trip with Umnitza CF Intake, no other performance mods - Very Light traffic, coasted on downhills - One and a Quarter Tank (Had to gas up around San Bernardino)

Return Trip - Very light traffic, Coasted Downhill, still used up over a tank of Gas

Recent Trip with GFI, no other performance mods - Light to moderate traffic, no coasting - Needle was between Half tank and 1/4th I didn't even use 3/4ths of a tank WTF ?!?!

Return trip - needle was at the 1/4th remaining mark (3/4ths used) after very heavy traffic (Mountain Fog) and several Stop and Go areas.

I usually cruise between 85-90 although this time, with the GFI, I was cruising at 90 at 4k RPM effortlessly with a LOT of Pull when I mash on the pedal.


What I want to know is:
Has anyone else with a GFI experienced a huge boost in fuel economy?
This just doesn't seem right to me, but hell, I'm not complaining.

 

Forn those not in the know, GFI = Ghetto Fabulous Intake created by Dr Isotope. More info here: http://www.yoursciontc.com/forums/in...showtopic=7096

 

If your foot weighed the same on every trip, more airflow = more fuel used, so your GFI must suck compared to the other one you had.

 

Sense no make you

I used LESS gas this trip with even more traffic

Let me simplify

Stock Intake - 1 full tank used

Umnitza Intake - 1 1/4th tank used

GFI - 3/4th of a tank used

Thanks for your opinion though, it was very well thought out

 

ahh gfi, i thought it meant ground fault interrupter, ya know like in your bathroom or kitchen? haa im just playin

Thats cool it used less gas tho

 

Bump

I get ridiculous MPG.. i'm leaning towards this intake

 

There's just something about the stock airbox that makes the flow around the MAF just about perfect.

That's probably what's doing it.