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Old 04-08-2007, 06:02 PM   #1
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Merc 496 Mag HO MPI Torque

Does anyone know how much torque this engine produces. All I can find is horsepower info.

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Old 04-08-2007, 09:49 PM   #2
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Must be a state secret. Nothing in the Mercruiser Product Knowledge Handbook nor the 496 Mag HO owners manual.
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Old 05-08-2007, 01:48 PM   #3
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You can work it out easily enough

torque = 5252 x horsepower / rpm
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Old 05-08-2007, 03:18 PM   #4
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Quote:
Originally Posted by codprawn View Post
You can work it out easily enough

torque = 5252 x horsepower / rpm
Whilst you can indeed calculate the torque from rpm & power, it only gives you a torque figure based on the peak power rpm, and gives no idea of the max torque, which will of course be quite a bit higher than that at max power point, and also gives no idea of the 'torque curve' at all, which is all important. For that you need a proper graph derived from dyno testing.
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Old 05-08-2007, 05:00 PM   #5
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Quote:
Originally Posted by Jon Fuller View Post
Whilst you can indeed calculate the torque from rpm & power, it only gives you a torque figure based on the peak power rpm, and gives no idea of the max torque, which will of course be quite a bit higher than that at max power point, and also gives no idea of the 'torque curve' at all, which is all important. For that you need a proper graph derived from dyno testing.
Obviously it's not a subsititue but better than nothing.
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Old 05-08-2007, 09:31 PM   #6
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It will probably produce a little more peak torque ,than its rated horsepower,so it could be around 450 ft/lbs

But like John said ,you don,t want to know peak torque ,its nice to know ,but its good to know how long it will hold torque (in the rpm band)
and when it start/ends.

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