Do you win? Heck, I don't know. I'll take a shot at it. Watch me get it spectacularly wrong. The 1.9L engine has 475cc displacement per cylinder. I think two cylinders fire per revolution, so at 900 rpm we got 900 x 2 x 475 = 855cc of air per minute being sucked into the engine. If the mixture is a good stoichiometric one, we'd have about a 1:15 fuel:air mass ratio. Air has a mass of 1.3g per liter, so that's .855 x 1.3 = 1.1kg of air per minute, with being one-fifteenth of that, or 74g per minute. At 60 minutes that's 4.4kg of fuel. Gasoline masses roughly 740 grams per /liter, so that's 6 liters, roughly 1.6 gallons U.S. per hour. Those are the numbers I come up with and I bet they're within an order of magnitude of being right. Mike "Rocket J Squirrel" Elliott On Nov 24, 2007 3:52 PM, Matthew Snook <matt@snooksband.com> wrote: > 0.9375? Is that right? Do I win? > > :) > > At 60mph, mine's turning @ 3200rpm. It will burn 3 gallons doing that. 3 > gallons per hour at 3200rpm. But it idles at 1000rpm. So that comes to > 0.9375 gallons per hour at 1000rpm. Of course there's no wind resistance at > that speed, so maybe less... > > Matthew Snook (@ ~3000 ft) > > > > -----Original Message----- > From: Michael Elliott > Subject: Calculate fuel consumption when idling? > > A properly-tuned 1.9L WBX engine would consume how many gallons of > gasoline per hour when idling at sea level? Would this be significantly > different at 6,000 feet? > > |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.