Truck parts Dynamometer.

[SRavet at bangate.compaq.com]

wmcgonegal at rr.etc.ncr.doe.ca Wrote:

| I think the easiest way for a DIYer to calculate power output from a 
| vehicle is (as mentioned in other postings) to accelerate on a flat 
| stretch of road while recording speed versus time.  From this 
| acceleration can be calculated.  Power is calculated as Vehicle Mass * 
| Acceleration * Speed.  If kg, meters/second squared, and meters/ 
| second are used the result is in Watts.

Someone on the hotrod list a long time ago suggested putting a hall effect 
type sensor at the both ends of the driveshaft and measuring how much it 
twists.  Another idea was a very large flywheel hanging in a pit in the 
ground, measure how fast the engine is able to accelerate it.  This sounds 
dangerous, but the driveshaft twist would be easy enough.

--steve

Steve Ravet
sravet at bangate.compaq.com
Baby you're a genius when it comes to cooking up some chili sauce...