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ByteJunkie

calculating the BHP using Vag Com

3 posts in this topic

in case you didnt already know...

1/ Take the peak MAF reading on a FATs run (4,200 to 6,500rpm in 3rd) and divide the figure by 0.8.

2/ log the torque and use this simple formula

BHP = 2 x pi x torque x revolutions / 550.

Pi is 3.1416, torque is in pounds-feet and revolutions are revs per second.

Obviously, we can change the revs to revs per minute, easily!

3/ BHP = 2 x pi x torque x rpm x 1.34 x 10 to minus third power / 60.

For this formula BHP is in horsepower and torque is in Nm

first way is commonly thought to be most accurate.

shamelessly stolen from RS246.com

Matt

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Good stuff Matt. Now talk to me about FATS times because I couldn't find a clear explanation on 246?

John

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When it says revolutions in the equation, does it mean rps which the torque was logged at or rps which the MAF reading was logged at????

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