Guess I was wrong, most of them are still super pricy but only cause they keep updating its looks to be more modern but still they only do about the same stuff.
picked up a Passport Escort G-timer performance computer Dyno GT-1
http://www.escortradar.com/pdf/gt1manual.pdf
Tracks acceleration times and speeds, including 0-60 and quarter mile times.
Mount on windshield, plug in and go.
Calculates peak horsepower.
Displays acceleration, cornering, and braking G-forces, including friction circle.
Keeps a list of your 10 best runs.
The GT-2 you could download the data but non to be found and the GT-1 was only $50 shipped new on e bay.
A few more GT-1s on there for a bit more, then the G-tech line goes to $200+