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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > 3 Stage Manifold Install, BPC Dyno Tune



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      12-24-2016, 01:50 PM   #1
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3 Stage Manifold Install, BPC Dyno Tune

I appreciate all the info others have shared, and hope this information is useful for anyone considering performance upgrades for the N52 engine.

I have a 2009 328i with a manual transmission and had been considering installing a 3 stage intake manifold for a while. I woke up and realized that Bimmer Performance Center (BPC) was relatively local so I brought the car in to them to install the manifold, perform a dyno tune and take care of some other maintenance items.

BPC was very knowledgeable and great to work with. Im delighted with the power increase from the manifold and tune.

Performance Mods:
Before: AA Stage 1 tune (from 2012)
After: 3 Stage IM, BPC dyno tune
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      12-24-2016, 02:25 PM   #2
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Neato!
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      12-24-2016, 02:42 PM   #3
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Wow, 55wtq at 2800rpm - can't wait to complete my 325xi swap.
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      12-24-2016, 05:01 PM   #4
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Those are some nice gains
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      12-25-2016, 12:14 AM   #5
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Wtf 30hp/Tq over aa!!!! WOW that's insane. Kudos to bpc for actually caring about the n52. That's some tune. Very impressive. Was the aa tune also dyno based or was it ots
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      12-25-2016, 01:46 AM   #6
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Quote:
Originally Posted by boro92 View Post
Wtf 30hp/Tq over aa!!!! WOW that's insane. Kudos to bpc for actually caring about the n52. That's some tune. Very impressive. Was the aa tune also dyno based or was it ots
The AA tune from 2012 was off the shelf, installed remotely. BPC did the tuning in their shop.

I need to point out that the difference was both the tune and addition of the 3 stage manifold, not just a difference in tunes.
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      12-25-2016, 03:44 AM   #7
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Was the soft rev limiter kept in the case? Very nice gains, just wondering about the 6500-7k range.

Enjoy your new found power!
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      12-25-2016, 09:10 AM   #8
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Are the 2 dips at 3200 and 4300rpm due to the DISA valves opening on the 3 stage IM?
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      12-25-2016, 10:05 AM   #9
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Yes that would be the distinct 3IM dips.
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      12-25-2016, 11:56 AM   #10
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The experts do it again
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      12-25-2016, 12:39 PM   #11
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Another testimony to how effective the three stage manifold mod is. Thanks for posting.
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      12-25-2016, 01:32 PM   #12
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Quote:
Originally Posted by UncleFester View Post
I appreciate all the info others have shared, and hope this information is useful for anyone considering performance upgrades for the N52 engine.

I have a 2009 328i with a manual transmission and had been considering installing a 3 stage intake manifold for a while. I woke up and realized that Bimmer Performance Center (BPC) was relatively local so I brought the car in to them to install the manifold, perform a dyno tune and take care of some other maintenance items.

BPC was very knowledgeable and great to work with. Im delighted with the power increase from the manifold and tune.

Performance Mods:
Before: AA Stage 1 tune (from 2012)
After: 3 Stage IM, BPC dyno tune
Impressive stuff, I'm starting to think their dyno reads a tad lower than mine, just going off those numbers.

Anyhow, get a good intake and nice axle back and you'd really be in business!

(Pretty sure this car was featured on BPC's FB page too.)
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      12-25-2016, 04:37 PM   #13
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Quote:
Originally Posted by tlow98 View Post
Was the soft rev limiter kept in the case? Very nice gains, just wondering about the 6500-7k range.

Enjoy your new found power!
Prior to the mods, BPC had suggested that raising the rev limiter might be useful, but they didn't see enough power on the dyno at the high RPM range to warrant it. I'm not fluent in the distinction between soft and hard rev limiter. If my response is off target, BPC might need to join the conversation.
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      12-25-2016, 04:43 PM   #14
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Quote:
Originally Posted by TheAxiom View Post
Impressive stuff, I'm starting to think their dyno reads a tad lower than mine, just going off those numbers.

Anyhow, get a good intake and nice axle back and you'd really be in business!

(Pretty sure this car was featured on BPC's FB page too.)
I had to go look at BPC's FB page after your comment ... yep, mine is the white sedan, debadged, with Breyton GTS wheels.

I started tracking my car last Fall. Tons of fun, and the vehicle is pretty capable for novice/intermediate groups, especially with track wheels, tires and brake pads. However, that environment really gives you a thirst for MORE performance.

I'm interested in headers once I'm confident that I can reliably pass annual vehicle inspections.
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      12-25-2016, 06:00 PM   #15
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Quote:
Originally Posted by UncleFester View Post
I had to go look at BPC's FB page after your comment ... yep, mine is the white sedan, debadged, with Breyton GTS wheels.

I started tracking my car last Fall. Tons of fun, and the vehicle is pretty capable for novice/intermediate groups, especially with track wheels, tires and brake pads. However, that environment really gives you a thirst for MORE performance.

I'm interested in headers once I'm confident that I can reliably pass annual vehicle inspections.
If you've got brakes, wheels and tires. I'd suggest focusing on suspension. You'll be shocked on what you'll be able to do with stock-ish power levels.

Camber plates in the front and dampers all around will raise the performance bar and even out tire wear at the same time. Even on stock springs these two are real eye openers.

Enjoy!
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      12-26-2016, 01:02 PM   #16
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Quote:
Originally Posted by tlow98 View Post
If you've got brakes, wheels and tires. I'd suggest focusing on suspension. You'll be shocked on what you'll be able to do with stock-ish power levels.

Camber plates in the front and dampers all around will raise the performance bar and even out tire wear at the same time. Even on stock springs these two are real eye openers.

Enjoy!
Agreed, braking, tires and then suspension is the way to go. Power is the least important assuming a decent baseline to begin with.
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      12-28-2016, 02:08 PM   #17
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Quote:
Originally Posted by 3002 tii View Post
Agreed, braking, tires and then suspension is the way to go. Power is the least important assuming a decent baseline to begin with.
Bingo. At least someone else besides us gets the idea...
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      12-28-2016, 04:28 PM   #18
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now i need to find a 3im ! ahh
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