This thing kicks ass
ohh yea bronco power i had the wrong weight in it, so the power is way off
ill have to update it and go do some pulls after work.
-0-60mph or whatever mph u want
-full track specs, different trees, roll out, rt, 60’, 330’, 1/8m with mph, 1000’, 1/4m with mph.
-hp and tq vs rpm
-hp vs time
-rpm vs time
-speed vs time
- gs (lateral and foward/back)
-gs vs time
-braking distance - 0-100-0, or what ever u pick.
-speed mark (what point u reach a certain speed during a run)
-distance mark (what point u reach a distance during a run)
-us and mertic - lcd display
from a local drag racer:
I have Gtech and it has been within 0.1 to 0.15 seconds at the track, which is excellent considering that the track timers will vary that much depending on how deep you stage. I see that the new ones have a built-in 12" rollout. The MPH usually reads higher than the track. Gtech says that’s because they report at 1320 feet, not the average of the last 60 feet. As Bill said, you do have to carefully zero the unit in tilt (at least the old ones) and start from a dead stop. Tough to do a 1/4 mile run on the road and keep your license! If you are off on the tilt adjustment by say, 0.02 Gs, then the 1/4 mile time can be off by 3 or 4 tenths. As such, their claim of 0.01% accuracy is suspect in my opinion. Some of these types of units have auto-tilt compensation (but not the Gtech). Those other units cost a lot more.The biggest value I found is comparing acceleration (Gs) at a given RPM or MPH. For example, it used to pull 0.50 Gs at 50 MPH in 2nd, and now it pulls 0.55 Gs which means 10% more HP and torque. Also, once you know acceleration and speed you can calculate road HP once you add back in aerodynamic drag (about 30 HP at 70 MPH, varies with the cube of the velocity). I have done that with my Cobra and can match the Dynojet numbers pretty well. I can give you the math. Comparing accelerations, I can also match what the dyno said for before and after supercharger installation (about +40%, pretty much flat from 2500 to 7000 - gotta love positive displacement blowers).
