Edge Comp 4x4 with the injection pump wire disconnected, winterized fuel 47 cetane, 32*F for temps, no head/tail winds, cruise set for each speed, and elevation is roughly 2,500 Feet.

65 MPH - 14.8 MPG - 1,880 RPM's - 74.6 HP produced.


55 MPH - 18.1 MPG - 1,589 RPM's - 50 HP produced


45 MPH - 26.8 MPG - 1,308 RPM's 27.7 HP produced...


Speed still is a factor to making the MPG number rise... If you figuring that 4x4 on th Edge Com and driving 65-70 MPH is going to net you good number its not going to happen...

Another set of magic numbers to gain MPG's! Keep your pyro below 600*F and boost below 5 PSI and 20+ MPG will happen... Remember this rule of thumb... The more pyro temp you see the more fuel your dumping in the cylinder to make that fire!

 

Good post!
At 65, I am at just under 1200 deg. I have to go 70 to stay around 1100.

 

Ok, thanks for the info.
How do the ScanGauge numbers compare to the overhead MPG reading?
I see good numbers on cruise at 60mph, better numbers at 55mph and some more better numbers at 50mph. They're not even close to accurate compared to hand figured fuel mileage but they do indicate general improvement or deterioration.

 

you have 1200 F at that speed? Where is your pyro set up? that seems really strange to me.

 

When pull into the fuel station the gallon comsumed number is normally dead on unless I need to recalibrate the ScaGauge II. Which is something the overhead computer CAN'T do.

The is a whole segment on how to properly calibrate the ScanGauge II for accuracy. Like getting MPH, engine size, fuel tank size, fuel type (gas, diesel, NG, LPG, etc).

These are setting that the overhead idiot can't be re-calibrated at all...

So I know exactly how much I'll spend at the pump to fill, and how many gallons I will put in...

 

If you guys want to get real accurate with fuel consumption, you really need a flow meter.

If I ran at 55mph, my fuel economy would drop 2 mpg. At that speed, I am lugging.

My best economy comes from 67-70mph with the cruise on. Consistent 23-24mpg. Now, increase the speed a few more MPH, the wind resistance becomes very high, rpms climb to 2000 and my economy starts dropping fast.

Dave

 

Hmmm... There is a accurate flow meter inside your VP44 pump now... The Scangauge II make all its calculations from this flow meter. It measures in GPH (Gallons per Hour).

Really that strange mine falls quite a bit... Look back at the pics... Even my pyro fell considerable...

I range from 0.00 GPH to 12.00 GPH in measurements... I'll try to redo my ScanGauge II pics with GPH measurements here soon...

 

It is setup in the manifold. I have egt's that high at that speed, yup.
Mind you, that is pulling a 20' enclosed car hauler trailer. But still, they shouldn't be that high.

 

3x4 for me is best

 

There is?

How does it compile this information? I have not seen any info on an actual meter within the pump. That's not to say it does not exist, just news to me. Any info on the actual meter within the pump out there?

Dave