Power and Torque

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11-12-2006 | 04:05 PM

KW-rscos

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From: Exeter

Power and Torque

Have seen it on here before but cant find it anywhere, can someone please explain to me why power and torque crosses at about 5250RPM?

cheers

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11-12-2006 | 04:12 PM

Ratty

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From: Chippenham, Wiltshire

hp = (torque x rpm)/5250

So when rpm = 5250

hp = (torque x 5250)/5250

Or simply

hp = torque x 1

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11-12-2006 | 04:14 PM

Billabong

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From: Northants

It crosses @ 5252rpm where power and torque are indicated as BHP & lb-ft

BHP = Torque (lbft) x RPM / 5252

BHP is calculated from the torque, which is what dyno's measure.

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11-12-2006 | 04:23 PM

Anonymous

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As above, its by deinfition.

Same as 1 litre of pure water always weighs 1kg.

Cause thats how 1kg is defined in the first place!

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11-12-2006 | 04:28 PM

KW-rscos

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From: Exeter

cheers guys

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