200 miles on full tank (TII) Is this the norm?
#1
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200 miles on full tank (TII) Is this the norm?
I have a slightly moded TII. I am getting horrible gas mileage. 200 miles per tank. Maybe something wrongs . Car runs great and doesn't smoke.
I drive to work on the highway and don't boost that often. Some of my mods are
Full RB setup
S5 turbo
FCD
TIDw/cone filter
removed emissions
Should I be getting better mileage? Again I rarely boost and I only drive the car to work on the freeway. Half of my 10 mile commute is 50 MPH only.
I drive to work on the highway and don't boost that often. Some of my mods are
Full RB setup
S5 turbo
FCD
TIDw/cone filter
removed emissions
Should I be getting better mileage? Again I rarely boost and I only drive the car to work on the freeway. Half of my 10 mile commute is 50 MPH only.
#5
Rotary Freak
iTrader: (1)
It doesnt seem absurdly low. I have a turbo swapped S4 vert (so even heavier than your car), and I average around 220-240 or so miles per full tank (I usually run it down to E, takes approx 15 gallons to fill back up in a mix of city and highway, and over 300-320 miles of solely highway at approx 75 mph. For highway cruising I usually run about 16:1 AFR, and the car is still very rich as soon as it hits boost and idles around 12-13 AFR. With a heavier foot tho, 200 miles is definitely not out of the question
#6
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#9
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This car has NEW everything for a tune up. I have no way to read my AFR. Maybe that will be my next purchase. I do smell exhaust real bad around the car when it is running. I thought this is do to removed emissions but maybe with my mods the car is running real rich. Could this happen even though I'm running stock boost and stock ECU?
#10
Respecognize!
so the fuel filter is new? there isn't anything clogging the sock on the fuel pump? Your fuel pressure isnt askew? Your injectors are less than a year old?
#12
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Thread Starter
The fuel filter is new and the injectors were prof cleaned when the rebuild was done. I don't know about the fuel pressure or sock in the fuel pump. I'll check these out but do you think they are causing poor mileage.
#15
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fuel economy can be adjusted some with a afc or standalone because rx7 run pig rich.
and the extreme smell that u have might be that u have no charcoal canister since u removed emmisions?
and yeah 200 is on the low side but normal ususally from spirited driving, but u have a turbo car enjoy it dont park it and look at it...
and the extreme smell that u have might be that u have no charcoal canister since u removed emmisions?
and yeah 200 is on the low side but normal ususally from spirited driving, but u have a turbo car enjoy it dont park it and look at it...
#16
^Hold On
Thread Starter
fuel economy can be adjusted some with a afc or standalone because rx7 run pig rich.
and the extreme smell that u have might be that u have no charcoal canister since u removed emmisions?
and yeah 200 is on the low side but normal ususally from spirited driving, but u have a turbo car enjoy it dont park it and look at it...
and the extreme smell that u have might be that u have no charcoal canister since u removed emmisions?
and yeah 200 is on the low side but normal ususally from spirited driving, but u have a turbo car enjoy it dont park it and look at it...
#17
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It would be much better to do a proper full tune up. Then diagnose other things. Leaning it out w/ a fuel management system is not a good way to gain mpg unless you are doing it to an engine that is in perfect operating condition. I doubt yours is as most everyone isnt.
#19
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I have a s4 TII with rtek 1.8 (720cc injectors) and premix and i get 300mpg. Engine has only 1000 miles with brand new 02 sensor, spark plugs and wires. Fuel filter is still old though!
#22
I wanna go fast
Join Date: May 2006
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when i first got my streetported 87 TII, it was in need of a tuneup. I actually thougt I was leaking gas. turns out boosting everywhere and high rpms will go through a tank in about an hour of hard driving. (I have no idea what the mileage was, I just wanted to go fast).