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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > 335d dynograph



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      12-05-2007, 02:08 AM   #1
dagjohnsen
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335d dynograph

The 335d with steptronic gearbox measured 266 rear wheel horsepower!
Thats pretty good I think
The powerloss with auto would be around 20%, meaning 332 hp at the flywheel, thats a lot more than the rated 286 hp.

Link here: http://www.rri.se/popup/performanceg...p?ChartsID=688
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      12-05-2007, 12:44 PM   #2
Nikolas
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Quote:
Originally Posted by dagjohnsen View Post
The 335d with steptronic gearbox measured 266 rear wheel horsepower!
Thats pretty good I think
The powerloss with auto would be around 20%, meaning 332 hp at the flywheel, thats a lot more than the rated 286 hp.

Link here: http://www.rri.se/popup/performanceg...p?ChartsID=688
Impressive numbers - amazing torque monster! However that is a hub dyno similar to a dynapak which generally read much higher, so I would say more likely a 10% or less drivetrain loss. Nevertheless, impressive for the diesel!
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      12-05-2007, 04:39 PM   #3
Driver72
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I agree you won't get 20% drivetrain loss when the wheels/tires are removed.
And I don't think the autos lose 20% drivetrain loss even WITH the wheels and tires on. It's probably closer to 16-17% (manuals are about 13-14%).

I think Nikolas is probably about right with a 10% loss when measured at the hub.

That would mean about 315-318 hp at the crank.

Is there a "chip" or piggyback for the diesel yet?
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      12-06-2007, 02:04 AM   #4
dagjohnsen
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Most German tuners have a chip already.
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