No, this is not your weekly MPG thread.
I've done some research and was not able to find any threads covering specifically this.

My Z is my daily driver, but I plan to boost it in the future just for fun in the long run and run "lowest enjoyable psi" possible. Since it is a long commute from home to work, that is why I am concerned.

The question is:

What are Z's (low boost) getting average for MPG (or total miles per tank)?

 

i dont know how many MPG i was gettin before i got boosted but.... it used to take me 7-10 days before i had to fill up and from full to 1/4 tank for gas left.... but when i got boosted... i would have to fill up every 4-5 days.... but then again i cant stay outa boost.... oh and thats on 7psi..... lol but you can go 5psi....

 

just cruising not in boost you can get low 20 mpg. I think I do like 23-25 with greddy tt.

 

I wish I knew. I can't seem to stay out of boost.

 

Still in order for me to have an average I'd have to know about how many miles you drove in those 7-10 days.



Woww... 22mpg?
I get that in my Z stock, so I guess the MPG will only be worst if you really gun it, that's what I am guessing.


PS.: This may sound like a noob question but I have never owned a Turbo car before: How can you stay out of boost in a Turbo car?!

 

Mine varies as i live close to my work.I get about 330 on a lot of highway driving to a low of 220 city driving.

 

i drive about 25-30 every other day.... just deppends on what im doin and whats goin on that week

 

Avg'd 17 city / 21 hwy while at 10psi on APS' injectors. On a road trip, I could squeeze about 320 - 340 mi. on a tank of gas. In town (work and back), it was about 270mi.

 

When I was boosted w/ 750cc injectors and found myself in boost A LOT, I was getting about 250 miles/tank...lol

 

according to the gauge in the car i used to get 16 without turbo and now on APS single turbo the gauge reads 24. I guess when a turbo isnt in boost it ionizes the air and you get better fuel economy.

 

ionizes the air? that's some Riley Martin stuff right there

When not in boost, a properly tuned Z should not have any mileage significantly worse than prior to it being boosted

 

and that my friends is why turbo cars are so great ; ). I get about 25-27 mpg in my twin turbo 300zx and just a tad under that in the 350z. Obviously when I get on it a lot that drops to more like 15-17 but it doesn't matter, just nice to know you can go on road trips and get decent mileage.

 

...my car tells me im getting 15.8-16.0 mpg....and i dont have anything but an exhaust!!! i do alot of city driving...but come on!

 

I have logged a fair amount over the couple yrs of my FI experience. Let me tell you that a GOOD ems will make a big impact on your fuel economy.

To go back to stock days, I was getting around 21-23 average combined driving. near 30 mpg on the highway.... that said, the car was only N/A for about 3K miles and I think the milage would have improved over time

So I boosted the car on stock block and only ran it for about 1K miles or so and never really logged any fuel economy on that....... sorry

So I build my motor run 14psi tapering to 11 on an 8.8:1 motor with stock heads and cams. out of box APS fuel system and custom dyno tuned unichip. car would see around 16-17 mpg in combined driving. I averaged just over 24 mpg on straight highway trips -> logged a couple over 400 miles. Well after upping the boost, that motor went soooooo....

Onto my most recent build. I am running 9:1 CR with gtm stage 1 fi cams. APS extreme fuel system and here's the biggie -> HKS Fcon. I am tuned to 15 psi across the board. I just filled up today and average 19.2 mpg. This was litterly no highway driving, a lot of letting the car warm up due to the cold weather here, but not too much overly aggressive boosting. I logged my trip to Chicago and averaged 26.4 mpg. I have done a few longer "tours" to the tune of 250 to upwords of 350 miles. These were fairly hard miles with pretty consistant boosting and I would see around 16-18 mpg depending on the weather.

using my two ems's as comparison, highway driving and combined driving fuel economy both improved despite running a bigger fuel system, bigger injectors, and a significant amount more boost. Though I did increase compression from 8.8:1 to 9:1...

 

Im lucky to get about 13 to 15mpg

 

UTEC has gotten me around 21 mpg on the highway at 7 psi and greddy twins. 358 whp (uncorrected dynodynamics)

Turbonetics netted around 22 mpg at 9.5 psi. 331 whp (uncorrected dynodynamics)

My build god willing will be done at the end of next month, and we will see how she does then, I am predicting 12mpg at 16 psi for the first 2-3k miles, lol. I will probably stay in boost all the time!!! 5XX whp (maybe 6xx whp) *uncorrected dynodynamics*

 

Im lucky if I Can reach 300 miles CRUISING. When WOT, no BS I get 10mpg, 200 miles on a tank...

 

Freeways: my computer reads high 20s. Street driving, I'm looking at 13-15

 

I get 300 on the highway as well and like Alberto, I get 200 mpg on a tank when boosting (even just a few pulls). I am at 161 right now, I had 2 3-5 pulls on boost and I have 1/4 tank left.
I guess it's just the nature of the beast.

 

Im only getting 300 highway and maybe 150-200 city. Im always boosting.