hm... whats your guys mpg??
03-26-03, 11:15 PM
#29
Displacement > Boost
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No I am not kidding. It got 27mpg coming home from Portland right after I bought it. This included some test drive city miles, too. A healthy NA that is driven normally and not hard can do 27mpg freeway. Some streetported and modded NA's even do this.
Crappy MPG with the turbos is because turboed engines need extra fuel as a coolant inside the combustion chambers. This is why most tuners set aftermarket standalone ECU's to 13:1ish air/fuel ratio on turboed rotaries. Stoichiometric (perfect chemical combustion) is 14.7:1 and best MPG is about 15:1, with best power about 13.5:1. Some really modded FD's run in the 11:1 range under heavy boost. How does 5-8mpg sound?
Crappy MPG with the turbos is because turboed engines need extra fuel as a coolant inside the combustion chambers. This is why most tuners set aftermarket standalone ECU's to 13:1ish air/fuel ratio on turboed rotaries. Stoichiometric (perfect chemical combustion) is 14.7:1 and best MPG is about 15:1, with best power about 13.5:1. Some really modded FD's run in the 11:1 range under heavy boost. How does 5-8mpg sound?
03-27-03, 01:40 AM
#31
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10mpg thrashing the car around town, I've squeaked 13 out of it, but it's really hard to not step on it. Before the turbo swap I got 18mpg on the freeway <sob...> Car's a '90 TII with a 60-1 turbo / 3" exhaust / Haltech E6K running things.
-Manolis
-Manolis
03-27-03, 01:58 AM
#34
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300 miles per fill up?
fuuken heck... i got 160 miles for a fill up.. it cost me 40£ as i live in England.. for those in america... where i am from it is about 65$ for a fill up... hmmm makes me wounder if this was a economical car??? lol my wife thinks it is.. but she hasnt seen my bank account yet!!!
03-27-03, 02:28 AM
#36
pei > caek
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Fill up on gas, reset your trip meter, go drive until you are at about at a 1/4 of a tank. Then fill up again. Take how many liters it took to fill the second time and divide it by your trip milage. That will give you km/liter. Times the km by 4 to get km/gallon. Then divide km by 1.6 I think.
03-27-03, 02:45 AM
#37
cool story bro
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A more reliable way would be to write down your odometer mileage every time you fill up and how much gas you've put into your car. That way if you forget to set the trip meter or something, you can still calculate MPG.
Then to figure out the MPG, you wield the same math skills that Mazda engineers use to calculate the volume of the combustion chamber of a rotary engine.
Then to figure out the MPG, you wield the same math skills that Mazda engineers use to calculate the volume of the combustion chamber of a rotary engine.
03-27-03, 04:39 PM
#39
**-P I drive a miata.
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I am getting about 10mpg on the highway and 9 in town... only mod is full exhaust.... my idle is kinda freaky though... do you think that TPS can cause REALLY bad gas mileage? I think my BAC valve needs cleaning too.
03-27-03, 06:29 PM
#43
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Originally posted by nonameo
I am getting about 10mpg on the highway and 9 in town... only mod is full exhaust.... my idle is kinda freaky though... do you think that TPS can cause REALLY bad gas mileage? I think my BAC valve needs cleaning too.
I am getting about 10mpg on the highway and 9 in town... only mod is full exhaust.... my idle is kinda freaky though... do you think that TPS can cause REALLY bad gas mileage? I think my BAC valve needs cleaning too.
Something is not right. Have you replaced your O2 sensor recently (if ever?). How about your spark plugs (in fact, are they even hooked up?). Have you replaced your spark plug wires? Check a few things, as something is wrong.
03-27-03, 08:07 PM
#45
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I got 245 miles out of one tank, and this was mostly highway. The way i figured it out was i devide the miles (245) by the amount put into the tank which is 13 gallons and i get like 18mpg
03-27-03, 08:07 PM
#46
**-P I drive a miata.
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Originally posted by ponykiller
Something is not right. Have you replaced your O2 sensor recently (if ever?). How about your spark plugs (in fact, are they even hooked up?). Have you replaced your spark plug wires? Check a few things, as something is wrong.
Something is not right. Have you replaced your O2 sensor recently (if ever?). How about your spark plugs (in fact, are they even hooked up?). Have you replaced your spark plug wires? Check a few things, as something is wrong.
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