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Author Topic: The mathematics of horsepower  (Read 1515 times)

Offline stealthwolf

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The mathematics of horsepower
« 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/

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Offline rich83

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Re: The mathematics of horsepower
« Reply #1 on: September 19, 2014, 06:17:04 pm »
Correct.... 5252rpm  :smiley:

Offline GrayMK5GTI

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Re: The mathematics of horsepower
« Reply #2 on: September 19, 2014, 09:56:00 pm »
I know I'll be checking every graph on the forum to prove this wrong  :laugh:
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Offline rich83

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Re: The mathematics of horsepower
« Reply #3 on: September 19, 2014, 10:00:26 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:

Offline Shaw

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Re: The mathematics of horsepower
« Reply #4 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'.
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