Livewire "Dyno."

[Dingo]

The SCT Livewire has a built in dyno based on speedometer data, vehicle weight, etc... Not just based on inertia like the old crappy performance monitors. I'm anxious to see how close it is. If the Livewire is even close, I must be doing something right.



Incidentally, this was done in a single run on dry level ground. No wheel slip.



<img src="http://www.zjstech.net/~library/22354/Jul25_0005.jpg">

 

[Travis Munday]

Yeah....that's not even close to being right. Particularly if it's RWHP.

 

[Todd Z]

IF that is Motor hp, Minus loss, I could see with the tune, Exhaust and my TB, plus what ever you have that you have not said, I could see that 4.6 having 320+ at the rear wheels...



Todd Z

 

[Doctor CAD]

Torque is work and distance. Why would an inertia based device that measures work and distance be crappy?



527 ft lbs, you are in big block with blower range, or desiel range.

 

[Bill Ellis]

Remember, torque is multiplied whenever gearing reduction is less then 1:1. If motor torque is 100 ft-lbs and drivetrain provides a 5:1 speed reduction, then torque at axle is in the range of 500 ft-lbs minus drivetrain loss.

 

[KentheREALone Z]

527 lb-ft, also small block w/turbo(s).

 

[Travis Munday]

DoctorCAD-

Horsepower is a measure of work over time; torque is a measure of rotational force.



All of these units rely on accurate weight in order to give an accurate number. If you put in the listed curb weight of a vehicle, you'll get inflated numbers...the HP numbers will read too high, and your accel times will read too low.

 

[Dingo]

I used 4852 for the weight. That's what the truck with a full tank with me in it weighed on a truck scale.

 

[Tom Schindler]

The old crappy inertia based system is used to test very powerfull engines.





Tom

 

[David Humphrey]

I used 4852 for the weight. That's what the truck with a full tank with me in it weighed on a truck scale.

Wow! Is your's a 4x4? Mine weighs 5450. I have a few items I carry around and I'm a big guy but that's a huge difference.

 

[Dingo]

4x2. And I'm almost 240 by myself.