if you want to be really accurate, then it needs to be done by weight, not litres, (as F1 fans will know) the volume of fuel changes with temperature, but the mass stays the same
The calibration process is the same for every pump on every forecourt. The environmental factors change massively though which will effect volumes.
Not sure to be honest! Presumably you want it to be cool and high pressure so the fuel hasn't expanded. Don't get too hung up on it, it won't make that much difference!
Well after all my problems with fuel pumps recently (see other threads) a couple of months on and everything has now settled down. After a couple of trips in October was surprised to see 28mpg!!! That was mainly motorway driving around 60mph. Usually get around 20-22mpg. I'll keep an eye on this in the new year when it starts getting some serious use again, but maybe the best way to improve your fuel economy is to fit a CB Performance fuel pump! Cheers.
Way Down 44litres = 9.68 gallons. 338.60km = 210.37miles = 21.73miles/gallon Motorway During 44 litres = 9.68 gallons. 279.70km = 173.78 miles = 17.95miles/gallon Urban Way Back 44 litres = 9.68 gallons 319.30km = 198.40 miles = 20.50 miles/gallon Motorway Combined =21.73 + 17.95 + 20.50 = 60.18/ 3 = 20.06mpg =210.37+173.78+198.40=582.55/3 = 194.18 average miles/tank latest statistics I did on a trip to cornwall.
22 - 24 mpg on a 1600 currently using a Chinese carburetter and distributor, with fuel delivery through a Brosol mechanical pump. All items that needed a certain amount of er adjustment before using but have been on test for the past year and are still functioning as they should. OOps just read back to the starting post 2L twin carbs. Oh well ignore this )
i darent work it out but i spent £70 to tatton and back adding on a few miles on the way back to Dubious in merry hill......sat at 55mph i find it best not to check anymore.
Soo one really needs a calibrated and temperature compensated flowmeter in the fuel line together with two impulse counters each having a toothed wheel driven off each of the gearbox driving flanges..this giving an input for actual distance travelled. The use of two providing a mean value across the diff to allow for discrepancies occuring when cornering. Easy innit )
So are you telling me that my bus might actually be doing 35mpg if I get it calibrated corrected?? Here's hoping so though I suspect Rickyroo will still be only getting 17mph