328i mods? - Page 2 - BMW 3-Series (E90 E92) Forum

e90pilot · 09-30-2010, 08:11 PM

Quote:

Originally Posted by brocklanders

my engine is untouched, completely stock and the whole power ban feels flat, and i have a manual. i think bmw did it on purpose to make the 330 seem better. in all reality the 06 325 has decent power just unimpressive acceleration.

Yes, BMW intentionally tuned the 325i slower. If you look at dynos from both cars, you'll notice the air/fuel ratio is richer on the 330i which allows it to run more spark advance. The 325 also runs less valve lift at full throttle and even less lift at high rpm to cap off peak power. That's one of the reasons the 328 has 15 more HP with almost the same engine.

brocklanders · 09-30-2010, 09:14 PM

just out of curiosity what does this powerbox do. i had a 16v gti back in the day and there was a similar device but that one implemented the cold start fuel increase at full throttle. besides the drive by wire delay improvement where does the claimed increase in power come from with this bms product?

Das.Euro · 10-01-2010, 01:04 AM

What brand ecu upgrade to go with?

EmjayDavis · 10-03-2010, 11:39 AM

Quote:

Originally Posted by e90pilot

Yes, BMW intentionally tuned the 325i slower. If you look at dynos from both cars, you'll notice the air/fuel ratio is richer on the 330i which allows it to run more spark advance. The 325 also runs less valve lift at full throttle and even less lift at high rpm to cap off peak power. That's one of the reasons the 328 has 15 more HP with almost the same engine.

learned a whole lot O_O

Emmerich · 01-18-2011, 09:34 PM

Hey jopa489,

how did you get your headlights to look like that (deleted amber)?

driverman · 01-20-2011, 07:35 AM

Has anyone with 6MT tried changing the rear axle ratio? Stock is 3.23. 6AT has 3.73. Going from 3.23 to 3.73 would send 15% more torque to the drive wheels.

e90pilot · 01-20-2011, 12:43 PM

A lot of people have done that. That is on my to-do list.

driverman · 01-20-2011, 12:45 PM

What do you think it will cost? $1500-$2000?

Thanks.

mike-y · 01-20-2011, 01:10 PM

The 3-stage manifold functions properly without the tune, and you can feel a difference. I am using the 3 stage with a PBX right now, and it made a very noticeable improvement compared to without the manifold.

The tune will make it much better though, as e90pilot pointed out.

e90pilot · 01-20-2011, 04:27 PM

Not sure. My diff was replaced already for $2k even but that was a brand new one and before I had the idea of getting the automatic one. You can get one out of a junked car.

ModBargainsTech · 01-21-2011, 03:23 PM

I would look into the BMS Powerbox for added power and improved throttle response.

XYR03 · 01-29-2011, 12:44 AM

Quote:

Originally Posted by e90pilot

Not sure. My diff was replaced already for $2k even but that was a brand new one and before I had the idea of getting the automatic one. You can get one out of a junked car.

Time to find a junk 330 lol what do u mean by "automatic one"?

jerflash · 01-30-2011, 02:33 AM

i just got my 328xi and i love it. i was going to start modding the shiz out of it with performance exhaust, euro intake, powerbox but then i figured something out. i bought the 328 cause i did not need a superfast and loud car...i got one of those already. so im going to throw some 19s on it and maybe a couple more appearance mods. IMO if you want to go fast in a e90/92 just spend a few extra dollars and get the 335. not only faster but better brakes and all that good stuff. makes way more sense.

e90pilot · 01-30-2011, 03:20 AM

Quote:

Originally Posted by XYR03

Time to find a junk 330 lol what do u mean by "automatic one"?

A diff from a car with an automatic transmission. The ratio is shorter. You'll have better acceleration but rpm cruising in 6th will be higher.

AlpineSwift · 01-30-2011, 03:28 AM

Quote:

Originally Posted by EmjayDavis

Try a AFE intake should get you about 15 HP to the wheel seriously recommend getting it.. YOU WILL FEEL the HP .. its incrediable

I seriously just lol'd.

The day I see a stock 328 with just the aFe intake dyno higher numbers than a drop in filter, I will concede and put mine back on.

EgoPaintedGrey · 01-30-2011, 11:50 PM

Quote:

Originally Posted by e90pilot

A diff from a car with an automatic transmission. The ratio is shorter. You'll have better acceleration but rpm cruising in 6th will be higher.

Do you know how much acceleration can you get from that? Does it work in the 1ers?

driverman · 01-31-2011, 12:10 AM

Quote:

Originally Posted by EgoPaintedGrey

Do you know how much acceleration can you get from that? Does it work in the 1ers?

The 128 and 328 6MT both have 3.23 rear axle ratios. The 128 and 328 6AT both have 3.73.

If you put the 3.73 diff in a 128 or 328 with a 6MT, 15% more torque will be sent to the drive wheels. I would GUESS that would cut the 0-60 time by about half a second.

EmjayDavis · 07-06-2011, 11:38 AM

PBX + AFE Stage 2 Intake is amazing got both setups under the hood now.

What exhaust system do you guys recommend purchasing for a pre-cli e90 (2007) 328i

engotski · 07-06-2011, 11:28 PM

Quote:

Originally Posted by EmjayDavis

PBX AFE Stage 2 Intake is amazing got both setups under the hood now.

What exhaust system do you guys recommend purchasing for a pre-cli e90 (2007) 328i

A lot of guys are swapping out of afe because it apparently robs power rather than gain some. Stock airbox is better or the euro box is best.

Im picking up my oem performance exhaust tom or friday and i think its one of the top dawgs in quality/sound. Exhaust will only give us 5 hp/tq

leebermeister · 07-07-2011, 12:02 PM

373 gears would be the best Acceleration mod you can get for the N52 & 6MT. However, I would not do it unless you can have a limited slip dif. installed. Otherwise, it will be tough to get traction in 1st gear.

xSp33dD3mon · 09-06-2012, 07:08 PM

Quote:

Originally Posted by **********s.com

Although it is harder to get horsepower from the N52 engine, there are a few mods that have been extremely successful and have been proven to increase horsepower, torque, and throttle response. I would recommend that you check out the BMS Powerbox, AFE intake, and the Remus Exhaust system for your 328i. I'll shoot you over a PM with more details!

- Alan

can i get some info also?

manutdas11 · 09-06-2012, 07:53 PM

Quote:

Originally Posted by xSp33dD3mon

can i get some info also?

Yeah, not going to happen anytime soon dude. They've been banned from here for a while now...

01-20-2011, 12:43 PM	#29
e90pilot Freight Dawg Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA Posts: 1,950 iTrader: (3)	A lot of people have done that. That is on my to-do list. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Racing Brake 2-piece rotors Click here for review!

01-20-2011, 04:27 PM	#32
e90pilot Freight Dawg Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA Posts: 1,950 iTrader: (3)	Not sure. My diff was replaced already for $2k even but that was a brand new one and before I had the idea of getting the automatic one. You can get one out of a junked car. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Racing Brake 2-piece rotors Click here for review!

01-30-2011, 02:33 AM	#35
jerflash Second Lieutenant Drives: 2007 E92 328xi/2002 ws6 Join Date: Jan 2011 Location: long island, ny Posts: 243 iTrader: (0)	i just got my 328xi and i love it. i was going to start modding the shiz out of it with performance exhaust, euro intake, powerbox but then i figured something out. i bought the 328 cause i did not need a superfast and loud car...i got one of those already. so im going to throw some 19s on it and maybe a couple more appearance mods. IMO if you want to go fast in a e90/92 just spend a few extra dollars and get the 335. not only faster but better brakes and all that good stuff. makes way more sense. __________________ Daily Driver: 2007 E92 328xi Space Gray w/ Coral Red/Black Int, M3 Comp Spoiler Painted Body color,WeissLicht LED Angel Eye H8, 19" Avant Garde M310s Gunmetal w/ Machined Face with Goodyear F1 Asymmetric 235/275 combo Racecar: 2002 Trans Am WS6, Red w/Ebony Leather...Loud and Fast. Bike: 2006 GSXR 750 Maroon and Black, Pipe/Filter/Powercomander

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

09-30-2010, 09:14 PM	#24
brocklanders Captain Drives: 2011 e90 335i Join Date: Mar 2010 Location: houston Posts: 689 iTrader: (1) Garage List 06 325 [0.00]	just out of curiosity what does this powerbox do. i had a 16v gti back in the day and there was a similar device but that one implemented the cold start fuel increase at full throttle. besides the drive by wire delay improvement where does the claimed increase in power come from with this bms product?

10-01-2010, 01:04 AM	#25
Das.Euro Banned Drives: 07 328XI- Montego Blue Join Date: Oct 2010 Location: NNJ Posts: 432 iTrader: (3)	What brand ecu upgrade to go with?

01-18-2011, 09:34 PM	#27
Emmerich Registered Drives: 2007 328i arctic metallic Join Date: Jan 2011 Location: MD Posts: 1 iTrader: (0)	Hey jopa489, how did you get your headlights to look like that (deleted amber)?

01-20-2011, 07:35 AM	#28
driverman Lieutenant Drives: 2008 E90 328i 6MT Join Date: Nov 2008 Location: SF Bay Area Posts: 517 iTrader: (0)	Has anyone with 6MT tried changing the rear axle ratio? Stock is 3.23. 6AT has 3.73. Going from 3.23 to 3.73 would send 15% more torque to the drive wheels.

01-20-2011, 12:45 PM	#30
driverman Lieutenant Drives: 2008 E90 328i 6MT Join Date: Nov 2008 Location: SF Bay Area Posts: 517 iTrader: (0)	What do you think it will cost? $1500-$2000? Thanks.

01-20-2011, 01:10 PM	#31
mike-y just another bmw douche bag Drives: 1.9L of fury Join Date: Nov 2008 Location: Los Angeles, CA Posts: 2,794 iTrader: (4)	The 3-stage manifold functions properly without the tune, and you can feel a difference. I am using the 3 stage with a PBX right now, and it made a very noticeable improvement compared to without the manifold. The tune will make it much better though, as e90pilot pointed out.

01-21-2011, 03:23 PM	#33
ModBargainsTech Private Drives: E92 335i/E90 335i/ E82 135i/ Join Date: Jan 2011 Location: La Habra, Ca Posts: 79 iTrader: (0)	I would look into the BMS Powerbox for added power and improved throttle response.

07-06-2011, 11:38 AM	#40
EmjayDavis Captain Drives: Batmobile Join Date: Sep 2010 Location: Toronto Posts: 719 iTrader: (0)	PBX + AFE Stage 2 Intake is amazing got both setups under the hood now. What exhaust system do you guys recommend purchasing for a pre-cli e90 (2007) 328i

07-07-2011, 12:02 PM	#42
leebermeister Enlisted Member Drives: 06 330i Join Date: Jan 2010 Location: ATL Posts: 36 iTrader: (0)	373 gears would be the best Acceleration mod you can get for the N52 & 6MT. However, I would not do it unless you can have a limited slip dif. installed. Otherwise, it will be tough to get traction in 1st gear.