Building the E92 328csl

Noir · 02-03-2019, 09:50 PM

What was the difference in measurement between an oem n54 TB and the RR TB on there right now?

I see some dude selling one for mad cheap in the FI classifieds right now... and the fancy OFH too :O

Joebie · 02-03-2019, 10:10 PM

Why N54 intake manifold instead of 3 stage?

gT-BMW · 02-03-2019, 10:25 PM

this is sick!!! thanks for creating this thread i really enjoyed it!! congratz on achieving your goal

breakingpoint · 02-04-2019, 01:24 AM

Great build and very nice writeup. Gave me some good ideas too. Curious about the exhaust cams too!!

Biginboca · 02-04-2019, 02:54 AM

Quote:

Originally Posted by Noir

What was the difference in measurement between an oem n54 TB and the RR TB on there right now?

I see some dude selling one for mad cheap in the FI classifieds right now... and the fancy OFH too :O

I don’t remember but it was very close. The WCR TB is just under 80mm. If I could do it again I’d do the N54 and save the $.

Biginboca · 02-04-2019, 02:58 AM

Quote:

Originally Posted by Joester

Why N54 intake manifold instead of 3 stage?

I had a 3 stage originally and it fell flat after 6500 rpms. The n54 manifold makes power all the way to 7500 and makes more peak power than a 3 stage. The compromise is the n54 makes less power in the midrange. There’s dynos and lots of info in this thread...

https://www.e90post.com/forums/showthread.php?t=1486800

Taskmaster · 02-04-2019, 07:07 AM

Fantastic!!

Bufalo · 02-04-2019, 10:32 AM

Quote:

Originally Posted by Biginboca

I had a 3 stage originally and it fell flat after 6500 rpms. The n54 manifold makes power all the way to 7500 and makes more peak power than a 3 stage. The compromise is the n54 makes less power in the midrange.

...and with your 3.91 rear, the mid range loss is less of a concern! Great looking car, excellent contributions in the N/A forum.

Biginboca · 02-04-2019, 10:44 AM

Quote:

Originally Posted by Bufalo

...and with your 3.91 rear, the mid range loss is less of a concern! Great looking car, excellent contributions in the N/A forum.

Yes exactly! When I swapped from the 3 stage manifold to the N54 manifold I also swapped from a 3.73 to a 3.91 rear end. This made up the midrange shortage.

PORTMOODY · 02-04-2019, 01:06 PM

I know you didn't baseline dyno but I still think it would be worthwhile to see the sum of all your mods on a dyno.

Biginboca · 02-04-2019, 02:15 PM

Quote:

Originally Posted by PORTMOODY

I know you didn't baseline dyno but I still think it would be worthwhile to see the sum of all your mods on a dyno.

I’m pretty curious myself to know what it would be, but now it seems kinda pointless. It could say 270whp or 230whp we all know there are so many variables the only thing you can really look at is power changes made on the same dyno on the same day. Everything is so variable.

I’ll say this, pretty much every engine mod I’ve done had dynos out there from others who had paved the way. I also did extensive testing of my own using my Dragy satellite timing device. Like 2 weeks ago I changed from the AFE airbox back to the stock airbox and added the Ram intake. This is the changes I documented:

AFE Stage 2 Sealed Intake:

Stock Airbox, Charcoal Delete, K&N Drop In, Ram Intake:

Both airbox set ups tested on same road, same amount of gas, multiple passes each way on the road to equalize wind variables. The only variable I couldn’t equalize for was temperature. But I then corrected for the temperature and weather data using the Dragtimes D/A calculator.

This shows what experience has told me is about a 3hp increase using the stock airbox combo. I don’t even know if a dyno could demonstrate that accurately.

Almost every mod on my car has been tested like this by me.

Nafy · 02-04-2019, 05:55 PM

Love your NA build, quality and tasteful mods!

yesss_k.b58 · 02-04-2019, 10:46 PM

Nice! Being a 335i owner (There are too many of us!), I'm actually glad to see some 328i builds out there. Have you suggested adding an M-Tech rear bumper as well?

Biginboca · 02-05-2019, 03:28 AM

Quote:

Originally Posted by yesss_k.n54

Nice! Being a 335i owner (There are too many of us!), I'm actually glad to see some 328i builds out there. Have you suggested adding an M-Tech rear bumper as well?

Thanks. I have thought about it but didn’t want to spend money replacing a perfectly good rear bumper. (My front was changed to M sport after a fender bender and insurance paid for a new one.)

I’m pretty sure someone texting will tap my rear bumper in the next few years and I’ll maybe change it to an M sport rear when that happens lol

Noir · 02-05-2019, 09:18 AM

eggscelent

AWSB328iM · 02-05-2019, 10:10 AM

Quote:

Originally Posted by Biginboca

Quote:

Originally Posted by yesss_k.n54

Nice! Being a 335i owner (There are too many of us!), I'm actually glad to see some 328i builds out there. Have you suggested adding an M-Tech rear bumper as well?

Thanks. I have thought about it but didn’t want to spend money replacing a perfectly good rear bumper. (My front was changed to M sport after a fender bender and insurance paid for a new one.)

I’m pretty sure someone texting will tap my rear bumper in the next few years and I’ll maybe change it to an M sport rear when that happens lol

[IMG][/IMG]

I got rear ended in my M-sport so I got a Euro diffuser out of the insurance claim. They also replaced my eBay high kick spoiler with an OEM BMW Performance Carbon fiber piece

Biginboca · 02-05-2019, 10:32 AM

Quote:

Originally Posted by AWSB328iM

[IMG][/IMG]

I got rear ended in my M-sport so I got a Euro diffuser out of the insurance claim. They also replaced my eBay high kick spoiler with an OEM BMW Performance Carbon fiber piece

That looks great!

tetsuo111 · 02-05-2019, 04:54 PM

Well-documented and inspiring build. I love projects like this - it's stands out (in a good way) from the many track / power builds commonly seen in the turbo and M communities, and it seems well executed and tasteful.

You had a clear vision of what you wanted to build and then executed the vision. There are so many big projects built to conquer the Nurburgring (or insert legendary track of choice here), when in fact the sweet spot is right here - a reliable daily that performs way beyond its class, is stylish, and generates big smiles behind the wheel.

Thanks for sharing.

InControl · 02-05-2019, 08:47 PM

Awesome mods and kudos for documenting it all. How much miles do u have on her now and are you concerned about durability long term?

Biginboca · 02-05-2019, 09:29 PM

Quote:

Originally Posted by InControl

Awesome mods and kudos for documenting it all. How much miles do u have on her now and are you concerned about durability long term?

I’m up to 85k miles now. Seeing as how there’s quite a few n52 328i over 200k and some over 300k miles on this forum, I feel like mine is just about broken in now lol. I have no concerns about reliability.

Twin_Snails · 02-05-2019, 11:21 PM

Beautiful build

E91Swagger · 02-10-2019, 09:55 PM

Did you notice any improvement in handling with the tower brace or mostly for looks? Also, is it a direct swap with the 435 front brakes?

02-03-2019, 09:50 PM	#23
Noir Major 883 Rep 1,413 Posts Drives: 2006 E90 330i 6MT Join Date: Aug 2016 Location: San Antonio iTrader: (1)	What was the difference in measurement between an oem n54 TB and the RR TB on there right now? I see some dude selling one for mad cheap in the FI classifieds right now... and the fancy OFH too :O __________________ See you, space cowboy. *Supercharged*
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02-03-2019, 10:10 PM	#24
Joebie Grandmaster 760 Rep 794 Posts Drives: 2018 ///M2 6MT Join Date: Dec 2014 Location: St. Louis iTrader: (0)	Why N54 intake manifold instead of 3 stage? __________________ Daily - 2018 Alpinweiß ///M2 6MT Exec Rain/Snow/Winter - 2011 328i 6MT Sedan - Black on Black, Sport Package Sold, But Not Forgotten - 2009 135i 6MT - Black on Black, M-sport, JB4
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02-03-2019, 10:25 PM	#25
gT-BMW Lieutenant 203 Rep 437 Posts Drives: 06' 325i 6spd Join Date: Jan 2018 Location: FL iTrader: (0) Garage List 2006 BMW 325i [0.00]	wow amazing!! this is sick!!! thanks for creating this thread i really enjoyed it!! congratz on achieving your goal
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02-04-2019, 01:24 AM	#26
breakingpoint New Member 8 Rep 29 Posts Drives: E92 330i Join Date: Jan 2019 Location: EU iTrader: (0)	Great build and very nice writeup. Gave me some good ideas too. Curious about the exhaust cams too!!
	Appreciate 1 Biginboca3761.50 Quote

02-04-2019, 07:07 AM	#29
Taskmaster Banned 2465 Rep 9,004 Posts Drives: M235i 6MT / E92 328 Msport 6MT Join Date: Nov 2013 Location: Florida iTrader: (6)	Fantastic!!
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02-04-2019, 01:06 PM	#32
PORTMOODY Captain 141 Rep 635 Posts Drives: Coal Roller Join Date: Mar 2014 Location: Vancouver, BC iTrader: (1)	I know you didn't baseline dyno but I still think it would be worthwhile to see the sum of all your mods on a dyno.
	Appreciate 0 Quote

02-04-2019, 05:55 PM	#34
Nafy Lieutenant 49 Rep 431 Posts Drives: 11 328i sedan Join Date: Feb 2013 Location: Vancouver, BC iTrader: (0)	Love your NA build, quality and tasteful mods!
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02-04-2019, 10:46 PM	#35
yesss_k.b58 New Member 24 Rep 13 Posts Drives: Looking for an F32 440i Join Date: Feb 2019 Location: San Jose, CA iTrader: (0)	Nice! Being a 335i owner (There are too many of us!), I'm actually glad to see some 328i builds out there. Have you suggested adding an M-Tech rear bumper as well? __________________ R.I.P - 2010 E92 335i \| M Sport \| 6AT \| Steel Gray Metallic - "Athena" Coming soon - F30/F32 340i/440i \| M Sport \| 8AT
	Appreciate 2 Biginboca3761.50 Drifter2090908.00 Quote

02-05-2019, 09:18 AM	#37
Noir Major 883 Rep 1,413 Posts Drives: 2006 E90 330i 6MT Join Date: Aug 2016 Location: San Antonio iTrader: (1)	melookingatthread.jpeg eggscelent Attached Images __________________ See you, space cowboy. *Supercharged*
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02-05-2019, 04:54 PM	#40
tetsuo111 Save the Manuals! 1227 Rep 1,239 Posts Drives: E91 RWD 6MT, X3, Ducati S4R Join Date: Dec 2014 Location: PNW iTrader: (0) Garage List 2011 E91 6MT RWD &q ... [0.00] 2005 Ducati S4R 996 [0.00] 2000 Ducati M750 [0.00] RIP - 2011 E91 328i ... [10.00]	Well-documented and inspiring build. I love projects like this - it's stands out (in a good way) from the many track / power builds commonly seen in the turbo and M communities, and it seems well executed and tasteful. You had a clear vision of what you wanted to build and then executed the vision. There are so many big projects built to conquer the Nurburgring (or insert legendary track of choice here), when in fact the sweet spot is right here - a reliable daily that performs way beyond its class, is stylish, and generates big smiles behind the wheel. Thanks for sharing. __________________ 2011 6MT RWD ClubSport Wagon \| 3,185lbs \| 1 of 149 ZSPs delivered in North America Outside: BMW M-Aero, Euro region lighting, Seibon \| Inside: M3 cockpit, Recaro SPG, Prototipo, AutoSolutions SSK, UCP \| Stop: M3 ST-40R, PFC \| Grip: Solid-mounted subframes, rear coilover conversion, M3 Nitron R3, Hyperco, SPL, AKG, ARC8 \| Go: StageFP, CF snorkel, 3IM, MILVs, SuperSprint headers, Dundon Motorsports Inconel exhaust, VoltPhreaks \| Cool: CSF \| PCA #2018100384 \| BMW CCA #505794
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02-05-2019, 08:47 PM	#41
InControl Lieutenant 59 Rep 552 Posts Drives: '13 328i coupe Join Date: Sep 2013 Location: VA iTrader: (0)	Awesome mods and kudos for documenting it all. How much miles do u have on her now and are you concerned about durability long term?
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02-05-2019, 11:21 PM	#43
Twin_Snails Private First Class 24 Rep 195 Posts Drives: E92 335i Join Date: Feb 2015 Location: San Diego iTrader: (5)	Beautiful build
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02-10-2019, 09:55 PM	#44
E91Swagger Private First Class 31 Rep 143 Posts Drives: E36S52; E91N52 Join Date: Oct 2015 Location: BurnabyJoe iTrader: (0)	Did you notice any improvement in handling with the tower brace or mostly for looks? Also, is it a direct swap with the 435 front brakes?
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