Pre Computer Data Logging

[Frank Lee]

Originally Posted by gilbogger

defying physics is a rather narrow assessment of a problem and possible solutions.

but if that's the brush you like to paint with,...then I think I would be best served by spending my resources and time into developing a time machine that will somehow defy physics enough to get me out of this conversation with you.

Nah- think of it as a challenge. Won't it be awesome to create your 50 mpg V8 4x4 and rub my nose in it? Why, I'll even grovel before you if you get 40. Carry on.

[dcb]

Gil, you should peruse some of Big Daves work.
Details: The Red Baron - 2000 Ford F-350 XLT Fuel Economy - EcoModder.com

He has an '00 F-350 XLT 7.3L (4x2) that he has nursed 28mpg out of, and is fairly exacting in his methods as well.


Edit: also note that you can get a clone usb arduino for like $20, it has 6 onboard a/d converters so you can monitor 6 analog signals and send them out the usb port with minimal external circuitry, then figure out the readings on a laptop or ??? And you can get a map sensor from the boneyard for peanuts, stick a thermistor in the airstream and you can compute air mass w/rpm.

[msc]

There are so many data loggers on the market there are only two reasons to reinvent the wheel. The first is because you really want to make your own, the other is because you have special needs that can't be met with an off the shelf system.

For your needs the products developed for race cars are probably best suited because the developers had mad many of the signals you want to collect in mind. The products aimed at the weekend auto cross and other non professional race teams will be the lowest cost. There is a lot of stuff out there which means competition, which means you can buy it for cheaper then you can develop it, so you may as well save yourself hundreds of hours of development time.

Do some hunting around on the internet, a Google search for "race data logger" turned up some good prospects. Be creative with your search string to narrow the search. Look carefully at specifications. You want something that collects for a long period of time so you can collect for a whole tank rather then just one race. You probably want a lower sampling rate than most race teams are collecting. Also look at the support tools, a good package will provide some analyses tools or at least make files that import to your favorite spread sheet.

Mike

[glhman222]

why do u need a logger? just calculate every tank, its what i do