Broader picture would be, to check basics, too.Anything i missed out on? Or other things to consider tracking for reference/changes?
I just finished the Nevada Open Road Challenge. In the 130 target class, My actual average was 130.04mph for 119.78 miles, and I pulled 6.7 MPG with a 496 stroker using a Megasquirt 2 EFI setup holding me at about 13.8:1. Big engines use big fuel. 130 mph is about 4400 rpm. We were up at 152 for a while and that was closer to 5000. Pulled off a 2nd place in our class with 2.2 seconds error.
After reading your post again , It sounds like your using the fuel gauge to figure the mpg.Here i am buying RON 98 fuel for the Dodge.
I do have a few bottles of octane booster at home for any time i go for a long tour and might not come across a petrol station that sells 98 fuel.
According me, my fuel gauge is not showing really accurate so i had to do the math myself. (think it shows Empty a bit too early, or not?)
As the tank is 72 liter (19 US gall.), i filled it up full with 56 liter (14.8 US gall.) when the gauge was showing a hair of Empty, which leaves me 16 liter (4.2 US gall.) of backup.
After driving around for about 60 miles the gauge is almost showing half again and i was kinda shocked it burned 28 liters (7.4 US gal.) on 60 miles (96 km).
So in conclusion, it's not the consumption...it has a small tank
Same as with me, everybody always talks about my drinking, but never about my thirst.
I did manage to get the AEM A/F sensor installed this morning.
I made it such to be a temporary setup to do the needed adjustments/troubleshooting, if not required i can remove it from the car and put a blank plug in the exhaust nipple.
Run the wiring through the hood scoop and secured with a strap very good visibility during driving==> safety awareness)
Noted the readings at idle, different speeds and near WOT situations.
I wrote down the average readings during constant speed.
Idle: 13.2 ("cold") / 12.8 after a drive with engine at operating temperature.
20 Mph: 12.0
30 Mph: 11.5
40 Mph: 11
50 Mph: 10.5
Several hard launches, mid sprints 30 ==>60 Mph i have not seen it go any higher then 13.5 (maybe 12.5 -13.0 average)
When speeding up normal it shows between 10.5 and 11.5 on average.
I think it could be leaned out slightly, or leave it as is?
Primary jets are #78, i just got my package with goodies which include the #75 and #73 jets to do any needed adjustments.
Also received my Firmfeel Stage 2 steering box!!
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