BlackCloud#2

I just put in my mach 1.6's and was courious if anyone else was getting an increase in fuel milage. When I put these in on easy throtle acceleration I am getting 13 from stock of 18. Ideas?

JD730

Most people here will report an increase of 1 to 2 mpg increase once the smoke clears and you drive it normally.
I'm lost here, I already drank my coffee and I still don't get it. If your getting these numbers off the mpg readout disregard them, mine is totally useless now, usually reads 30mpg or something like that. If you hand calculated those numbers you either need to lay off the skinny pedal or you could have a fuel leak somewhere.

GlennRMK

I was getting a little worse at first, but now that I am back to babying it, I am up about 1 or 1.5 MPG

My overhead thing is off. Reads 22.4 MPG over the last 3000 miles or so. Everytime I've filled up, I've between 19.1 and 19.4 MPG.

This is with 315s and the truck came with 265s. Before the injectors. It used to read 15.5-16 and I would get 17.5-18.2.

So I imagine if your running stock tires the overhead display might read 3 to 5 MPG high.

BARTMAN

Nope...fuel mileage went down. But really, whom cares? You went bigger for more power, and that (MPG) is just one of the trade off's. What I wasn't expecting was the increase in smoke from my RV275's. People say that the RV is a "crude" injector...well, it doesn't smoke as much as these do! I definitely have to get the boost up to clear my path. No mosquitos here!

RowJ

I know several that have gotten 1.6's. Their mileage all went up...usually in the 1 mpg range, after they stopped playing with the new HP.

RJ

hotdram

Got my 1.6's in a few months ago and haven't stopped playing with the new HP, so I can't tell you

~Rob

BigBlue

My 275's were cleaner than my stockers. Not to mention gave me a better mileage gain than any injector I've ever run.