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F30 / F31 / F32 / F33 (2012 - current)
The sixth generation 3 series, chassis code F30. 2013 model year 328i and 335i sedans now in production. Read the F30 frequently asked question thread for all your basic question and dive into all the details in the ultimate F30 information thread.

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  #1  
Old 02-20-2012, 11:47 AM
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pix335i pix335i is offline
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Post Dyno of the Long Term 2012 BMW 328i comes in at 241hp / 275lb-ft of torque!



The dyno numbers are in from the morning testing at Turner Motorsport and the numbers are almost too good to believe. The long term review 328i reported in at 241.241 horsepower and 274.759 lb-ft of torque. Considering the car is rated at 240 horsepower and 255 lb-ft of torque by BMW at the crank, these numbers at the wheels are just really impressive.

2012 BMW 328i Dyno Run

2012 BMW 328i Dyno Run

Before today, two 2012 F30 328i sedans have been dynod, our friends at EAS (EAS F30 328i dyno thread) put down 226hp and 230ft-lbs of torque. InsideLine (InsideLine F30 328i dyno thread) put down an even more impressive 240hp and 257ft-lbs of torque. Clearly BMW is under rating the N20 4 cylinder turbo in these cars.

2012 BMW 328i N20 Motor

This was the first time anyone has dynoed the N20 328i with a 6 speed manual and I think anyone would be happy with these results. A big thank goes out to Turner Motorsport for helping us make this happen!

Besides the dyno run we're using Turner Motorsport impressive facility to dive into our F30 328i. Look for the following technical results from our trip -
  • Complete suspension review including expert analysis from TMS suspension engineers
  • Side-by-Side comparison of the E90 to the F30 on the lift
  • We weigh the 328i on the TMS race scales. How much does an F30 328i really weigh?
  • Wheel fitment testing - If you're going to be putting rims on your F30 you'll need this info
  • Brake pad fitment - Are any existing brake pads compatible with our F30 328i brake system
  • And more! Who knows what else we'll come up with with the BMW experts at Turner Motorsports!
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  #2  
Old 02-20-2012, 11:51 AM
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cool!
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  #3  
Old 02-22-2012, 01:02 PM
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The time has been moved up to 10:00 AM tomorrow. The LIVE stream will be at:

http://www.turnermotorsport.com/live-stream.aspx
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Old 02-22-2012, 01:52 PM
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Damn, im gonna be at the dealer getting some service done(slight vibration in steering wheel)...might have to bring my laptop and watch there...or can i replay it somehow?
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  #5  
Old 02-22-2012, 01:54 PM
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We will have the video up on our Youtube channel at some point. Make sure you are subscribed for updates:
http://www.youtube.com/user/BimmerfestVideos/featured
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  #6  
Old 02-22-2012, 03:12 PM
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SD Z4MR SD Z4MR is offline
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Quote:
Originally Posted by pix335i View Post
The time has been moved up to 10:00 AM tomorrow. The LIVE stream will be at:

http://www.turnermotorsport.com/live-stream.aspx
No love for the West Coast! I'll still be sleeping, not a morning person! I guess that I'll have to catch it on YouTube.
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  #7  
Old 02-22-2012, 03:17 PM
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Quote:
Originally Posted by SD 335is View Post
No love for the West Coast! I'll still be sleeping, not a morning person! I guess that I'll have to catch it on YouTube.
The live stream will start at 10 with setup and some test runs. Full bore runs will be at 11, can you catch that?

Tim
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  #8  
Old 02-22-2012, 05:49 PM
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Looking forward to the 6 SPD MT numbers plus the rest of the TMS feedback.
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Old 02-23-2012, 05:54 AM
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The car has arrived at Turner Motorsport and is getting prepped for the big day! Here are the first couple pictures.

F30 328i at TMS

F30 328i at TMS

F30 328i at TMS
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  #10  
Old 02-23-2012, 06:17 AM
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  #11  
Old 02-23-2012, 06:36 AM
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Dyno packs going on the car. Stream is already up and live at:
http://www.turnermotorsport.com/live-stream.aspx

F30 Dyno Setup

F30 Dyno Setup
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Old 02-23-2012, 07:04 AM
Carlos Thomas Carlos Thomas is offline
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Need better upload bandwidth to get a better quality broadcast. However, it is great to be watching this while I am working. GOOD JOB!!
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  #13  
Old 02-23-2012, 07:58 AM
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Dyno numbers officially came in at a max of 241.241 horsepower and 274.759 lb-ft of torque. Those are some INSANE numbers for a car rated at 240hp and 255lb-ft!
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Old 02-23-2012, 08:02 AM
Carlos Thomas Carlos Thomas is offline
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Quote:
Originally Posted by pix335i View Post
Dyno numbers officially came in at a max of 241.241 horsepower and 274.759 lb-ft of torque. Those are some INSANE numbers for a car rated at 240hp and 255lb-ft!
Being that I am not an engineer, explain to me why that is "insane".
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Old 02-23-2012, 08:05 AM
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There are two ways to rate HP / Torque. I found an explanation online that probably explains it better than I can.

Quote:
Crank power is measured with an engine connected to a dynamometer and tested (with out the rest of the car attached, just the engine by its self). wheel HP is measured with a chassis dynamometer, and is measured with the car on a rolling road type of machine. wheel HP is typically lower because the engine has to use some of its power to spin the transmission and wheels (among other things). there are rough estimates for drivetrain loss for front wheel, all wheel, and rear wheel drive vehicles. those estimates are used so people can compare the power their car is making at the wheels to the power the car was rated at the factory (from the crank).
So, the fact that the car is making more HP / TQ at the wheels than what BMW advertises at the crank is what makes it insane.
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Old 02-23-2012, 08:08 AM
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Here are two quick screen captures from the dyno runs

F30 328i Dyno Run

F30 328i Dyno Run
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Old 02-23-2012, 08:10 AM
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Quote:
Originally Posted by Carlos Thomas View Post
Being that I am not an engineer, explain to me why that is "insane".
Im no engineer either, but based on those numbers HIS n20 is putting out close to 270 horses and 300lb foot toruqe
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Old 02-23-2012, 08:27 AM
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Quote:
Originally Posted by pix335i View Post
Here are two quick screen captures from the dyno runs

F30 328i Dyno Run

F30 328i Dyno Run
Wow that's impressive! Great HP & torque numbers.

For reference here's a good link about the N20 that matches close to your dyno powerband curves

http://www.bimmerboost.com/showthrea...N52-comparison

BMW did a great job to transition the torque drop off at 5k rpm into the HPs sweet spot around the same rpm.

Did you have the A/F ratio map?
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Old 02-23-2012, 08:27 AM
Carlos Thomas Carlos Thomas is offline
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Originally Posted by justinnum1 View Post
Im no engineer either, but based on those numbers HIS n20 is putting out close to 270 horses and 300lb foot toruqe
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  #20  
Old 02-23-2012, 08:29 AM
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That's pretty incredible. Definitely underrated.
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  #21  
Old 02-23-2012, 08:30 AM
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I had trouble believing the previous two tests cited in the OP. But this clinches it! Fan-frig'n-tastic.
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  #22  
Old 02-23-2012, 09:15 AM
matts335 matts335 is offline
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I'd probably still want the 335, but that's pretty cool. What's with the initial dip somewhere between 1500-2000 rpms in the torque curve?
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  #23  
Old 02-23-2012, 10:40 AM
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The dip is from the way the dyno loads the engine. It freewheels at first then clamps down to load the engine.
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Old 02-23-2012, 06:10 PM
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I quickly put together a video of a few runs from today. We did a total of 12 runs on the dyno and despite the turbo getting "rather warm" (as shown in the video) the oil temp hardly moved and there was no coolant temp warnings. Watch and let me know what you think!
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Old 02-23-2012, 07:25 PM
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weird...why no real wheels on the car?
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