BMW 1-Series Forum (F20) 135i - 1Addicts.com > Second Generation 1 Series Forum > 2012 BMW 1-Series Sporthatch (F20) Discussion > B58 Mx40i OBD flash
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      07-18-2018, 03:26 AM   #1
Bee Pee
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B58 Mx40i OBD flash

Dervtech here in the UK posted this on FB yesterday...OBD tune Stg2 mx40i ~445bhp at the crank....

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      07-18-2018, 05:41 AM   #2
ovekvam
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How was the power measured on the crank?
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      07-18-2018, 05:48 AM   #3
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Quote:
Originally Posted by ovekvam View Post
How was the power measured on the crank?
On a dyno probably
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      07-19-2018, 12:19 AM   #4
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Quote:
Originally Posted by Bee Pee View Post
On a dyno probably
But they can only measure power on the wheels or the hubs, not the crank, unless you take the engine out of the car.
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      07-19-2018, 03:47 AM   #5
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Quote:
Originally Posted by ovekvam View Post
But they can only measure power on the wheels or the hubs, not the crank, unless you take the engine out of the car.
I posted this for general interest & awareness only.

Dyno runs quoting crank power/torque are common in the UK.

Don't shot the messenger, if you need more details, go direct to Dervtech.
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      07-19-2018, 04:12 AM   #6
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It is common a lot of places. I would prefer if they stick with what they can measure, and not estimations on what the engine power is. The problem with that is that all car manufacturers specify engine power, which is the reference.
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