MK5 Golf GTI

General => Random Chat => Topic started by: stealthwolf on September 19, 2014, 06:15:46 pm

Title: The mathematics of horsepower
Post by: stealthwolf on September 19, 2014, 06:15:46 pm

Didn't realise this but on a dyno, torque and horsepower will always cross at the same point irrespective of the vehicle's engine:

http://www.hotrod.com/techarticles/1410_the_mathematics_of_horsepower/

Title: Re: The mathematics of horsepower
Post by: rich83 on September 19, 2014, 06:17:04 pm

Correct.... 5252rpm  :smiley:

Title: Re: The mathematics of horsepower
Post by: GrayMK5GTI on September 19, 2014, 09:56:00 pm

I know I'll be checking every graph on the forum to prove this wrong  :laugh:

Title: Re: The mathematics of horsepower
Post by: rich83 on September 19, 2014, 10:00:26 pm

Quote from: GrayMK5GTI on September 19, 2014, 09:56:00 pm

I know I'll be checking every graph on the forum to prove this wrong  :laugh:

Just remember to check that the scaling is the same for bhp/lbfts.. otherwise it wont  :smiley:

Title: Re: The mathematics of horsepower
Post by: Shaw on September 20, 2014, 06:38:55 pm

Also. Bhp is just torque x rpm/5252. So bhp is the meaningful figure when looking at a dyno chart, not torque. Diesels have so much more torque at low rpm but are slower because petrols essentially have a bigger 'multiplier'.