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Terry @ BMS's Avatar
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Default BMW 2016 340i B58 dyno testing - 12-01-2015, 12:31 PM

Hey guys,

Finally strapped down our development BMW 2016 340i automatic to the dyno for some inital testing. Runs were done on ~93 octane with around 150 miles on the odometer. Temps in the 60s.

Summary:
I'm pretty impressed with the new platform!

Random thoughts:
1) The factory B58 turbo seems larger than the factory N55 turbo as evident by how much better it holds boost/power at higher RPM. It's almost a flat power curve from 5200rpm to redline even tuned.
2) Peak power stock is an impressive 330whp. I'll overlay with some stock N55 dyno charts for a visual comparison.
3) There is pretty good tuning potential for the platform. I've been burning the midnight candle the last few days to get the B58 JB4 ALPHA up and running. Some interesting changes were needed but nothing we couldn't easily handle. The B58 JB4 ALPHA has the in dash boost gauge, map switching, logging, boost by gear, and other features found in our other JB4 applications. Results of our current map1 below. I think this is about as far as we will want to push a stock car on pump gas although I did push it harder on the dyno for internal data collection purposes.
4) I'm not yet sure how the platform will take to E85. I plan to work on that next week. I'm hoping it responds well.
5) I've also included a JB4 log of the stock and tuned run in the dyno to add some context to the results.
Attached Images
     


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Default 12-01-2015, 12:35 PM

That's a nice start. Next up would be some E30 testing... More octane, more boost, more whp?
I guess it will easily hit 400+ on more octane.

Tnx for sharing!


F21 M140i - 100-200: 6.95
Audi TTRS - 100-200: 4.47 60-130: 5.16
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F20 M135i (sold) - 100-200: 6.26 , 60-130: 7.4
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Default 12-01-2015, 12:38 PM

Very exciting.


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Default 12-01-2015, 12:39 PM

I'm hoping it can hit 400whp on E30 but we'll have to see. We have some direct timing control built in to the system and I lowered it 2 degrees or so on the pump runs. On the E30 mix maybe we can raise it 2 degrees to get there.


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It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default 12-01-2015, 12:45 PM

Quote:
Originally Posted by Terry @ BMS
I'm hoping it can hit 400whp on E30 but we'll have to see. We have some direct timing control built in to the system and I lowered it 2 degrees or so on the pump runs. On the E30 mix maybe we can raise it 2 degrees to get there.
It sure looks very promising


F21 M140i - 100-200: 6.95
Audi TTRS - 100-200: 4.47 60-130: 5.16
F80 M3 - 100-200: 4.45, 60-130: 5.1
F20 M135i (sold) - 100-200: 6.26 , 60-130: 7.4
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Default 12-01-2015, 12:46 PM

Sweet! Interesting timing curve.

0 degrees ramping up to ~10 degrees.

In dash and steering wheel controls?! Ign timing control already?! You're not wasting any time

Nice!
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Default 12-01-2015, 12:53 PM

Quote:
Originally Posted by Pure Turbos
Sweet! Interesting timing curve.

0 degrees ramping up to ~10 degrees.

In dash and steering wheel controls?! Ign timing control already?! You're not wasting any time

Nice!
We're definitely getting better at this with every new model BMW releases.


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Default 12-01-2015, 01:14 PM

Certainly better than what anyone was expecting. Looks quite promising.
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Default 12-01-2015, 01:46 PM

This is very positive news~! cannot wait till its released, keep the updates coming~!!!
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Default 12-01-2015, 01:51 PM

Well done Terry! Very impressive results so far


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Default 12-01-2015, 02:01 PM

badass ill bet this thing will rip on max boost


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Default 12-01-2015, 02:35 PM






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Default 12-01-2015, 04:21 PM

Wow maybe finally a worthy n54 successor??
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Default 12-01-2015, 06:22 PM

Man this is exciting! I've been waiting so eagerly for some results on the B58. Can't wait to see what happens next, you always seem to make it happen!
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Default 12-01-2015, 08:25 PM

Quote:
Originally Posted by tredirtyfive
Wow maybe finally a worthy n54 successor??
I'm not sure about that. But, it's definitely better than the N55.


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Default 12-01-2015, 08:31 PM

Quote:
Originally Posted by Terry @ BMS
I'm not sure about that. But, it's definitely better than the N55.
Does this mean us n55 folk will forever be left in the dark and get no further love


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Default 12-01-2015, 08:31 PM

Wow, so just to compare. E series N55 on map 2 is basically the same as this stock. Then upping boost to only 18psi on pump, beats a FBO E40 N55.
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Default 12-01-2015, 08:37 PM

Quote:
Originally Posted by 1slowN55
Does this mean us n55 folk will forever be left in the dark and get no further love
No it just means you guys need to purchase larger turbos to remain competitive at the track.


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Default 12-01-2015, 09:53 PM

wow nice work Terry



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Default 12-01-2015, 10:23 PM

Quote:
Originally Posted by Weehe
Wow, so just to compare. E series N55 on map 2 is basically the same as this stock. Then upping boost to only 18psi on pump, beats a FBO E40 N55.
No way. Terry has a 2011 dct 135i (n55 of course) making 389/479 FBO no meth on e50. Running map 5 too

http://www.1addicts.com/forums/showthread.php?t=776002


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Default 12-01-2015, 10:24 PM

Map 2 did 366/430


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Default 12-01-2015, 11:39 PM

Great results, it will definitely be interesting when the engine makes it way into the 1/2 series.

It will be interesting to see how the b58 compares the f-series n55 with a bit of E.
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Default 12-01-2015, 11:52 PM

Quote:
Originally Posted by Newguy123
Map 2 did 366/430
Yea but its with e85 and the current numbers of the b58 are on pump !
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Default 12-02-2015, 04:22 AM

Looks promising!


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Default 12-02-2015, 06:37 AM

Quote:
Originally Posted by Newguy123
No way. Terry has a 2011 dct 135i (n55 of course) making 389/479 FBO no meth on e50. Running map 5 too

http://www.1addicts.com/forums/showthread.php?t=776002
14whp difference from FBO with E50 in a DCT vs AT on pump and tune only. We also dont even know how much boost the DCT was on. In this case the B58 peaked 18psi and made that much. As for map 2, tune only on 93, that is right where (maybe 5-10whp more) this B58 is stock.

However, I do have to say this has a lot less torque than the N55.
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