Turbo mpg!

[boredom.is.me]

No offense, but like John said, that is almost a useless number. That's only instantaneous mpg, but it changes every second. It's greatly affected by whether or not you are on an incline, did you lift a little...blah blah blah.

I just use it to keep my "spirit" in check.

[lexusb3]

@Visconti i will reset my trip and fill up with 93 and also after e85 and have the true MPG soon just for the record book.
@TyperRspec789 im still running 5psi lol. i will be at the 8 mark next week. so hey it might be the same!
@boredom.is.me.. i see where you are comming from but like john said ill reset the trip and let you guys know the "true" MPG. but its there for a reason yes it changes every second that y i gave a range it 30 ish to at most 34mpg but it was on cruize control. just to have some sort of idea.

[lbroskee]

Originally Posted by lexusb3

lol when!!! pull the trigger

i dont have the money right now. im about 2000 short for a gt28 kit. =[

[lexusb3]

Originally Posted by lbroskee

i dont have the money right now. im about 2000 short for a gt28 kit. =[

dammmm open credit cards lol im kidding im a bad influence when it comes to that as soon as i see it i buy it..... thats why im scarred to look at @Frs300 because im going to want to build my car like that lol

[lbroskee]

Originally Posted by lexusb3

dammmm open credit cards lol im kidding im a bad influence when it comes to that as soon as i see it i buy it..... thats why im scarred to look at @Frs300 because im going to want to build my car like that lol

if i wanted to use credit i could order it rt now, but I'm the responsible ultramarine owner of us 2 lol

[lexusb3]

Originally Posted by lbroskee

if i wanted to use credit i could order it rt now, but I'm the responsible ultramarine owner of us 2 lol

hahahahhahahhahahahhahahhah

[wparsons]

Originally Posted by Visconti

I dont mean to steal anyone's thunder but you can't go by the MPG gauge on the car.

The only real way to calculate gas mileage is by filling the gas tank and resetting your trip and tracking the actual mileage.

Next time you feel up you take your mileage and divide by the amount of fuel you put in the car.


-John

There are lots of great smart phone apps that do all the hard work for you, plus show you trends, etc. The one I use I just enter the odometer reading, amount of fuel (in liters for me) and price/L, it gives me a nice graph over different time ranges and will export the raw data to excel as well.

Originally Posted by boredom.is.me

No offense, but like John said, that is almost a useless number. That's only instantaneous mpg, but it changes every second. It's greatly affected by whether or not you are on an incline, did you lift a little...blah blah blah.

I just use it to keep my "spirit" in check.

There's two mpg (or l/100km for us Canadians ) gauges in the car. One is instantaneous, the other is the cumulative average since the last time it was reset. Neither are super accurate, but they do show very different information.

[glorydays]

Originally Posted by Visconti

I dont mean to steal anyone's thunder but you can't go by the MPG gauge on the car.

The only real way to calculate gas mileage is by filling the gas tank and resetting your trip and tracking the actual mileage.

Next time you feel up you take your mileage and divide by the amount of fuel you put in the car.


-John

How would you account for time spent idling? From what ive seen the mpg avg. Accounts for this.

[Visconti]

Originally Posted by glorydays

How would you account for time spent idling? From what ive seen the mpg avg. Accounts for this.

What do you mean ?

MPG is Miles Per Gallon of gas, idle included. If you let your car idle for half a tank of gas your MPG will be greatly effected. The gauge on the dash can give you a idea where your at but is not capable of being more accurate then doing math yourself

John

[Sportsguy83]

Originally Posted by glorydays

How would you account for time spent idling? From what ive seen the mpg avg. Accounts for this.

Yeah, like John said, MPG number includes idle time, no need to try and take it out of the calculation.

Sent from my HTC One X using Tapatalk 2

[WRXGuy1]

Originally Posted by glorydays

How would you account for time spent idling? From what ive seen the mpg avg. Accounts for this.

The more time you spend idling the more fuel gets used while the mileage stays the same.

1.) Fill up tank
2.) Reset trip meter
3.) Refuel when tank is near empty
4.) Divide the miles you drove by the gallons of gas consumed (amount you put in)

So for instance if I drove 338 miles on a tank and used 10.482 gallons of gas, my MPG would be 32 for that tank. The MPG indicator in the car is not correct, and for me seems to be off from 1-2MPG.

[glorydays]

Ok I confused myself. I Got it.

[sierra]

My average fuel consumption readout is only 3% under that calculated at the pump.
Once ECU values have been changed by Ecutek that accuracy might be lost?

[King Tut]

If you have aftermarket injectors and your tuner scaled the injectors the correct way in EcuTek, the OEM gauge will not read accurately. Mine is normally off by at least 3 MPG compared to calculating it manually.