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View Full Version : European HP vs. American HP ratings



Weapon_R
04-27-2003, 10:12 PM
Is anyone familiar with the European measure for engine power ratings?

When I was in Europe, a 1992 Mercedes 300E 4matic was rating as having 31 Horsepower.

Everyone knows that this isn't the case, according to North American standards, where even a firefly has more horsepower than that.

I remember driving a V12 Mercedes 600 and checking it's registration, which only read 46 ponies...

What's the deal with their methods of measurement?

DSM Power
04-27-2003, 10:41 PM
You must be taking about BHP (brake horsepower)... eh, but I have no idea what the difference is. :dunno:

buh_buh
04-27-2003, 11:19 PM
I thought brake horsepower = flywheel horsepower?

persid
04-27-2003, 11:24 PM
PS/HP/BHP/whatever are more or less the same thing. What you most likely saw was a rating in KW (kilowatts) which is just another way to measure power. But none of those cars make anything close to 31KW...closer to 350KW for the S600. So, in short, I don't know what you saw.

littledan
04-27-2003, 11:27 PM
1 HP = 0.746 kW...

ha ... that's the only thing i took away from my electric motor course..

FiveFreshFish
04-28-2003, 05:41 PM
Originally posted by buh_buh
I thought brake horsepower = flywheel horsepower?

I thought it meant horsepower at the brake (wheel)? :dunno:

4wheeldrift
04-28-2003, 05:58 PM
Originally posted by FiveFreshFish


I thought it meant horsepower at the brake (wheel)? :dunno: Brake horsepower is measured at the flywheel.

szw
04-28-2003, 09:10 PM
Maybe it was the gas tank capacity. haha

Silencer
04-29-2003, 08:59 AM
That's weird - I don't know what that is. But brakehorse power is measured at the flywheel by hooking up the engine to something that puts drag on the engine until it stalls.