N51 build - Dyno tune

matthewjmoser · 02-15-2020, 10:26 PM

I purchased my bmw 2011 328xi A/T 4 years ago with 32k miles. This past weekend it rolled over 115k putting on 1100 miles traveling from Long Island down to Stage Fabrication and Performance run by Bob + Phill. The car has the following engine modifications. AA headers , custom secondary cat delete , charcoal delete , k + n filter , silicone intake tubing, 3 stage manifold ( n51 ) , Bmw performance exhaust and a vibrant ultra quiet resonator, XDelete. The final results were as following. The next step is to do milvs and get a retune this spring. This is the link to the dyno pull. https://youtu.be/eWPjP1k-8H8

R.Thillman · 02-26-2020, 09:10 PM

Quote:

Originally Posted by matthewjmoser

I purchased my bmw 2011 328xi A/T 4 years ago with 32k miles. This past weekend it rolled over 115k putting on 1100 miles traveling from Long Island down to Stage Fabrication and Performance run by Bob + Phill. The car has the following engine modifications. AA headers , custom secondary cat delete , charcoal delete , k + n filter , silicone intake tubing, 3 stage manifold ( n51 ) , Bmw performance exhaust and a vibrant ultra quiet resonator, XDelete. The final results were as following. The next step is to do milvs and get a retune this spring. This is the link to the dyno pull. https://youtu.be/eWPjP1k-8H8

does the auto trans hold back that much? i remember when bob was at bpc they posted graphs with 237whp.

nsjames · 02-29-2020, 09:25 AM

Quote:

Originally Posted by R.Thillman

does the auto trans hold back that much? i remember when bob was at bpc they posted graphs with 237whp.

was that an n52 dyno?
n51s are weaker than n52s.

matthewjmoser · 03-01-2020, 04:06 PM

Auto and manual are a big difference power wise. Manuals usually read 10-20 whp more

tlow98 · 03-01-2020, 08:48 PM

220 whp/tq seem like pretty good numbers based on n51s of the past. Nice work!

Do you have a dyno pre-mods? Interested to hear the delta.

Eagle1oh7 · 03-02-2020, 10:43 AM

Nice! I dyno'd at 210whp and 200wtq with almost similar mods, but RWD only. I'm sure if I was local to Bob I'd get more power.

AmuroRay · 03-03-2020, 07:54 PM

How did you dyno it in RWD mode?

matthewjmoser · 03-03-2020, 10:32 PM

Bob flashed xdelete while I was there. My car is now rwd.

Eagle1oh7 · 03-04-2020, 09:51 AM

Quote:

Originally Posted by matthewjmoser

Bob flashed xdelete while I was there. My car is now rwd.

Might as well do a full conversion to get rid of those useless components.

matthewjmoser · 03-04-2020, 10:08 AM

Quote:

Originally Posted by Eagle1oh7

Nice! I dyno'd at 210whp and 200wtq with almost similar mods, but RWD only. I'm sure if I was local to Bob I'd get more power.

yeah I'm sure he could get a bit more torque of your car if it was on the dyno. car feels completely changed.

E92William · 03-23-2020, 08:53 PM

Those are great numbers, I saw an e90 328xi 6at n52 similar mods and the 3 stage mani with catted headers barely break 200 on that same dyno

matthewjmoser · 03-31-2020, 04:01 PM

Quote:

Originally Posted by E92William

Those are great numbers, I saw an e90 328xi 6at n52 similar mods and the 3 stage mani with catted headers barely break 200 on that same dyno

thanks. im proud of my n51. i think my customs secondary cat may have something to do with my numbers also. very happy with the car. seats are next maybe some sparcos.

02-15-2020, 10:26 PM	#1
matthewjmoser Second Lieutenant 56 Rep 294 Posts Drives: 2011 328xi Join Date: Feb 2015 Location: Long Island iTrader: (0)	N51 build - Dyno tune - stage fabrication and performance I purchased my bmw 2011 328xi A/T 4 years ago with 32k miles. This past weekend it rolled over 115k putting on 1100 miles traveling from Long Island down to Stage Fabrication and Performance run by Bob + Phill. The car has the following engine modifications. AA headers , custom secondary cat delete , charcoal delete , k + n filter , silicone intake tubing, 3 stage manifold ( n51 ) , Bmw performance exhaust and a vibrant ultra quiet resonator, XDelete. The final results were as following. The next step is to do milvs and get a retune this spring. This is the link to the dyno pull. https://youtu.be/eWPjP1k-8H8 Attached Images Last edited by matthewjmoser; 02-15-2020 at 10:55 PM..
	Appreciate 5 MCShred99.00 gT-BMW203.00 niksss10.00 Silnismo225.50 AmuroRay2267.50 Tweet Quote

03-01-2020, 04:06 PM	#4
matthewjmoser Second Lieutenant 56 Rep 294 Posts Drives: 2011 328xi Join Date: Feb 2015 Location: Long Island iTrader: (0)	Auto and manual are a big difference power wise. Manuals usually read 10-20 whp more
	Appreciate 0 Quote

03-01-2020, 08:48 PM	#5
tlow98 Brigadier General 2173 Rep 4,989 Posts Drives: 2009 E91, 2014 F15 x35i Join Date: Aug 2011 Location: Bay Area iTrader: (2)	220 whp/tq seem like pretty good numbers based on n51s of the past. Nice work! Do you have a dyno pre-mods? Interested to hear the delta.
	Appreciate 0 Quote

03-02-2020, 10:43 AM	#6
Eagle1oh7 Lieutenant Colonel 287 Rep 1,710 Posts Drives: '11 328i Sedan Join Date: Oct 2012 Location: Chula Vista CA iTrader: (0)	Nice! I dyno'd at 210whp and 200wtq with almost similar mods, but RWD only. I'm sure if I was local to Bob I'd get more power. __________________ DONE: Seibon CF Hood, M3 Rep, MSport rear w/DD CF Diffuser, M3 Rep Skirts, Seibon CSL trunklid, Forgestar F14 18s w/Michelin PSS, Eisenmann catback, AA Headers, BPC Stage 2, Charcoal Delete+revMotor+AFE Drop In filter FUTURE MODS: LED headlights, CF rooftop, M3 Suspension Conversion, Dinan CAI Mod
	Appreciate 1 matthewjmoser55.50 Quote

03-03-2020, 07:54 PM	#7
AmuroRay Brigadier General 2268 Rep 4,130 Posts Drives: M235i Join Date: Aug 2019 Location: Florida iTrader: (0)	How did you dyno it in RWD mode? __________________ Mods: Yes.
	Appreciate 0 Quote

03-03-2020, 10:32 PM	#8
matthewjmoser Second Lieutenant 56 Rep 294 Posts Drives: 2011 328xi Join Date: Feb 2015 Location: Long Island iTrader: (0)	Bob flashed xdelete while I was there. My car is now rwd.
	Appreciate 1 AmuroRay2267.50 Quote

03-23-2020, 08:53 PM	#11
E92William Banned 1998 Rep 2,026 Posts Drives: 2008 E92 328xi Join Date: Nov 2019 Location: Miami iTrader: (0) Garage List 2008 BMW 328xi [0.00]	Those are great numbers, I saw an e90 328xi 6at n52 similar mods and the 3 stage mani with catted headers barely break 200 on that same dyno
	Appreciate 0 Quote