Ok I currently have a b16 with gsr tranny and mugen p28. I get about 20mpg, sometimes more and sometimes less. I just bought a 4.785 final drive, and now I'm having second thoughts about installing it. To those with this fd, what gas mileage do you get?with chipped ecu?

Thanks
Blake

 

the only time i have ever gotten under 20 mpg is when i'm on the track and when my gas line sprung a leak.....

my b20vtec with b16a tranny and 4.785 final drive gets 32 mpg highway and 28 city.....i think there is something wrong with your setup

 

probably the "mugen" chip on his ecu

 

get a air/fuel gauge and see if you are running rich...i would guess you are.

 

Hell yeah, those M00gen ECUs run rich as hell, all the time. I had one in my GSR to try out, and i got like 22 MPG, usually get 32 mpg, lol.

 

bah mugen chips are weaksauce to the real mugen ecu, i got like 12-15mpg on that thing lol

 

Yeah I know it's the chipped ecu that's causing my bad gas mileage, that and my driving habits, but how does the jdm final drive affect gasmileage compared to stock fd?

 

off the top of my head, maybe 3-4mpg difference on average, but dont quote me

 

ok thanks casey.

 

I previously had a stock GSR tranny, but I rebuilt it with new ITR/B16A 1-5th gearing and added a new JDM FD. If this would help, I currently get like 250 miles per tankful if I drive normally, whereas when I had the stock GSR gearing, I got closer to 285-290 miles per tankful.

So yes, milege did drop quite a bit

 

Mileage? Who's counting?

 

Last tank I had 28mpg...but I haven't tweaked with the part throttle settings yet, normally I average around 24mpg.

Austin

 

https://honda-tech.com/zerothread?id=359269

 

My ATS FD gets me 23-24 mpg vs my 26-28 mpg stock setup.

It reallly kills me. Are you really that cheap you woudl buy the part but worry about $1.50 in gas?

I admit I bitch about doing 80 MPH and 5000+ rpms but gas mileage is the leats of my concerns. Although it did improve when i leaned out the cruising rpms.

 

LOL, it's like my parents who go out and fill up both their cars when they hear gas is going up 5¢ a gallon. I mean, they save like $1.25

Anyway, JDM FD, Authentic Mugen ECU 25-30 MPG depending on driving style.

 

mine is chipped also......and i have 290 injectors (woohoo really big) and my vafc is at adding 18% accross the board so i know i'm way way way rich!

 

here is my speedo.....

at 85

 

I get about 25-30 w/ kenji P28

 

i get about 25-28 mpg with my mugen chip and 310s...
im gettin hondata pretty soon so i hope it'll change

 

It's not a matter of being cheap, but more of being broke. I'm in college man, and I make about $8000 a year. After I bought this fd, I realised my gas mileage was going to be affected, but how much was the question.

Now, I realise that my poor gas mileage is because of my driving and not because of anything mechanical. Once again, I was curious as to how much worse it was going to get, but it's obvious that it's not much worse.

 

gas mileage will not be affected by much. i typically lose about 5-10 miles for the entire tank vs. the stock FD.

i personally think that my city mileage went UP.. as I can cruise around the city in 4th and even 5th with no problem (instead of 3rd or 4th before)

 

I usually get between 24 and 28 depending on how heavy my foot is. This is all city driving too. Motor is a stock 98 JDM R.

 

I really really really forgot what over 200 miles per tank looks like since my ATS

 

Just got the motor reinstalled into the vehicle. I just drove 310 on 11 gallons. This included 80pecent highway @85mph and spritely around town driving. Oh, and this was all with 4 aboard. Hope that helps.

 

25 mpg is normal for daily driver. Best hwy was 28 mpg. This is with Spoon ECU, CTR Trans, and ITR 98+ FD. Bone stock otherwise.