Android dyno

sd2649 · #1 10-27-2010, 05:27 PM

I am attempting to setup a dyno program on my evo 4g. I know they arent real reliable or accurate, but I wanted to see how the free dyno app did, and I could post you guys the charts when I'm done. Anyway, I need some help, there are a few pieces of data that the program needs that I just cannot find, please anyone with an idea or even a good guess, chime in!

Pitch characteristics - ? default is 2.00*/G (pitch angle in degrees @ 1 G acceleration)

Roll characteristics - ? default is 2.50*/G (roll angle in degrees @ 1 G cornering)

Weight - my 94 fwd should be 3375lbs according to the interwebs

Drive train losses - ? Whats typical for subies weird fwd trannies? default is 15%

Rolling resistance - ? Need to look at my tire manufacturer? Psi? Weight? default is 0.015%

Drag coefficient - 0.29 cd - interwebs

Frontal area - 0.557 m2 - interwebs

Alright... help!

sd2649 · #2 10-28-2010, 03:01 AM

Nobody????

1986nate · #3 10-28-2010, 04:45 AM

drivetrain loss on the awd auto is about 25-30%

sd2649 · #4 10-28-2010, 08:32 AM

Sooo... the fwd would be higher than 15%??

1986nate · #5 10-28-2010, 12:51 PM

Quote:

Originally Posted by sd2649

Sooo... the fwd would be higher than 15%??

Yes, the FWD still works very similar. I haven't seen any numbers, but it's still going to be 20-25% on a fwd auto on the SVX, more than likely closer to the 25%

sd2649 · #6 10-29-2010, 02:22 PM

Even with the rear diff, center viscous clutchplate for the awd hookup and all those drive shafts/cv axles missing, you think its still close to 25%..... no way, its gotta be a ton lower.