mattW· Premium Member
Has your deflector made a noticable difference to your stability at high speed? A spoiler works by deflecting air upwards which results in a reaction force downwards on the back of the car. Your deflector is doing the opposite, deflecting air down and lifting the back up... Its possible to reduce the drag of a car but increase the lift which results in a effiecient but dangerous car. I don't mean to be critical but i don't want you spinning off the freeway at speed.Since the Pusher needs cooling air to enter the grille, I've fabricated custom mounts and cut down the rear air deflector from a 1980's Oldsmobile station wagon to catch a bit of the air coming off the rear of the roof and direct it down the slope of the rear hatch. No scientific data on that modification, but anything that smooths the air flow behind the car can't be bad.
The E-Meter patent was purchased by Xantrex and has been renamed "Link 10" (Here's a link to a descriptive page about it from Energy Outfitters). If you were to use the method described by veperformance above, the Link 10 could be very useful, especially if you purchased it with the RS232 option, which provides a data port from which you can compile data at one second intervals. Running this data through Excel, it's possible to make some very useful graphs:How good are E-meters and that kind of thing at measuring your effeciency?