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Old 01-21-2022, 01:11 PM   #85 (permalink)
racprops
Master EcoModder
 
Join Date: Oct 2009
Location: Phoenix AZ
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Quote:
Originally Posted by Piotrsko View Post
how do you intend to accurately measure fuel burn? The sensors I have seen seem to be +/- 20% and most demonstrators use a precisely calibrated fuel container and weigh the fuel at a controlled temperature

I suppose if you have a calibrated fuel flow map for injectors, accurate pressure measurement and record of the controller output, you could use that, maybe.

I use the following: A MPGunio, a ScanguageII and runs from Phoenix, AZ to Blythe, CA is 150 miles (241 km). a 02 hours 20 minutes drive by car.

So a fullup to three kick offs by the gas pump handle, and then doing the math.

A full test would be a round trip both ways and a return to the very same pump.

As I am only interested in broad strokes not each 1/10th of a MPG, more in rather I am seeing 5 to 15 MPG changes these are accurate enough for my needs.

Once I am sure my Two MPG gauges are reading close and just about the same as the road trip, I can do short runs up and down I17 near my home working to get a good improvement and if one really shows up, I can do the run from Phoenix, AZ to Blythe, CA to really prove it.

Rich
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