At what point do you start to lose fuel effeciency... and at what point does it drastically drop?

Does it start with certain bolt-ons? intake, TBE?
MBC?
Cams?
Upgraded turbo?

just curious..

 

If you want to save gas, get a tune as soon as possible. For every simple bolt-on I added, pretty much the mileage would go down. The drastic change would be once you turn up the boost from stock with the mbc (so with a bigger turbo = more boost so less mileage I think). More power usu. means more gas. However when I wanna save gas, I stay out of boost. I was getting 12 mpg for full bolt-ons but with a tune with afr of around 10.9-11.1, I now get around 18 mpg.

 

The key is to stay out of boost. Think about the air and fuel nearly doubling when you get on it.

 

The more you get on it the more gas you will use.If you take it easy than you will not burn as much gas.

 

I can get about 20mpg if I drive on the highway and stay completely out of boost at 65mph... However, if i drive it like it wants to be, I get about 10mpg, if that.

 

my Evo is still stock,and i notice if i just baby it around,i will get a full tank to last me almost 300 miles
but if i get on it,im lucky to get 230-250 miles out of it lol
Im hoping intake,and TBE will help her out a bit

 

My evo run's 12.90's and gets about 260-280 miles to a full tank. But don't mix the two..

 

Yeah, it's all about how you drive.

I'm driving my stock Evo and I got all of 13 MPG this week, on 10 gallons

Then when I put in gas today, and drove slower I went 20 miles and the needle didn't even move.

 

driving behavior dictates a lot of the gas consumption

 

you wont noticable notice a difference if your driving habbits are the same and your tuned.

 

I just got cams & my fuel economy seems to be ****.

 

you can also get in your tune a gas saving map. In the city i can get from about 270 mi or so, and thats in the city. dont know about highway yet. and i got alot of fuel mods.

 

Yes, there are some tricks your tuner can add in to your maps for better mileage.

 

i just got my cams and cam gears mbc fmic fp headstud and new plugs installed .my gas mileage got so bad makin round at the gas station freq'. gonna get tuned asap'

 

Yeah man.... I got cams 4 days ago & the first day I rolled around un-tuned... the car reeked of pure gasoline. Its not as bad now, but it still is present.

Someone mention some gas mileage ideas. We have my cruising load/afrs set for 15.4. Timing about 8 degrees i believe