So I'm reading some stuff on whipplesuperchargers.com... I read the following snip on the site: So I'm thinking to myself - In theory, then the effect on gas milage during freeway cruising should have little/no effect since the engine is breathing normally, right?

I guess what I'm interested to know is the effect of the whipple kit on my MPG numbers for my '04 F150. I know it would drop in city driving, but since I'm majority freeway miles, would I be looking at a 1mpg loss? 2? 4? Is it just marketing hype?

Thanks in advance gurus!

 

MY MILAGE increased on highway
runs after addition on eaton set up
at 120kph ctuisinng never kicks out of overdrive where as before it did
mitch

 

Mitch - Do you have numbers? Just curious. What about overall mileage, with city driving mixed in?

 

I have a Procharger on mine and Gas milage went up the highway for me too, about 2 MPG. Just like Mitch, it doesn't shift out of overdrive now on the highway even in hills.

 

if i have done the math right
13 to 16 milles to the us gallon
mitch

but iam realistic if you get a honest
15 mpg with a pickup of this weight
you are doing great
anyone who sayes they get more than that i always question

 

Yeah, I currently get between 15-15½MPG bone stock with 65-75% being freeway cruising somewhere between 65 to 80MPH. If I could maintain at least 14-15mpg w/ a supercharger, intake, exhuast & programmer I'd be happier than a pig in slop.

I know alot of it will depend on my right foot, but I figured after a bit I'll be able to control it.

 

I get 17 city and 22 mpg highway. I have a 4.6L though. I have gotten as low as 9 mpg due to leadfooting it.

 

i would not factor increased mpg into wether or not i got a s/c, unless it sound good to the wife
my highway mpg is the same as before the s/c, around 14.0 to 14.5 at 70 to 75 mph.