redhalo

OMG people, this is benchmarking. Two different cars with the same horsepower will pull different 1/4 mile runs. The point of rating hp is to compare changes made on the same vehicle and to get an extremely rough estimate when comparing to another vehicle. Use the info as a tool, not a definative argument. You can pull a 5% margin of error between two dyno runs with the same car anyways.

tazman34685

I totaly agree great point

I_dont_know

Well, there are two ways to measure horsepower. An engine dynamometer measures the HP at the Flywheel or crank. A chassis dynamometers measures the HP at the wheels, a 'real world' level of usable HP. There is a loss of HP between the flywheel and the wheels. An automatic trans loses more HP than a manual trans does. But for the best measurement of usable HP, a chassis dynamometer is the one to use.

Zombietime

Thank you captain obvious.

TheScionicMan

Technically, horsepower is not "measured" at all, but is derived from torque and RPM by formula.

Regardless, who here shopped for their xB based on the HP rating? Probably as many that had rigid wheelbase specifications. Would you not have gotten it if it only had 103 HP? It's a rating, a way to compare and is useless when taken as a lone measurement. The fact that it has been shortened to the point that the RPM isn't even listed is a perfect example of that. How often are you hitting 6000 RPMs? The fact that we're getting max torque at 4,200 RPMs is slightly more relevant to What Moves You...

I_dont_know

I may be captain obvious, but if you didnt notice, there are alot of people on SL that dont know alot of things. I was just providing them with the information they could use. "Keeping my post relevant and helpful". . . . something more people on SL should do