325i to 330i conversion successful! Dyno charts included!

e90pilot · 04-21-2010, 02:54 PM

Quote:

Originally Posted by 318 NewBoy

Manifold is where the fresh air will be directed into the engine. Header is where the exhaust gas will be directed out of the engine.

The words manifold and header both mean pretty much the same thing: multiple ducting pipes condensing down to one or one pipe splitting into several. I've heard people calling an intake manifold an intake header and an exhaust header an exhaust manifold. It's just which side of the engine that makes the difference.

There apparently is a small difference between a manifold an a header, at least on the exhaust side. I'm not exaclty sure but a factory car usually comes with an exhaust manifold and if you go aftermarket you can get headers. Semantics aside they are esentially the same.

e90pilot · 04-21-2010, 03:03 PM

328 owners: if you have an N52N, this mod will most likely work. The engine block pistons and exhaust manifolds are the same as a 330. The rest of the exhaust will have no bearing on software tuning. If you have an N51 you already have a 3-stage intake manifold but your compression ratios are different so this will not work. However, you can just get aftermarket software and get more power with the engine you have. You can go to www.realoem.com and compare the part numbers to double check.

PBX owners: Using this in conjuction with aftermarket engine software is not a good idea. It's like saying, "I want an AFE intake and a Gruppe M intake." That will probably not work out well. Aftermarket tuners can tune the throttle for you. Also, ECU will most likely adapt out the tuning from the PBX if you go with aftermarket tuning.

IancoleTX · 04-21-2010, 04:13 PM

Interesting. I want before-and-after dyno sheets on a 328i.

philsteroni · 04-21-2010, 05:58 PM

Ok, lemme get this straight. The software is`nt custom software, it is the powerchip 330 tuning software.When you slap the intake in and do the software the disa valves operate just like a 330?

e90pilot · 04-21-2010, 06:15 PM

Quote:

Originally Posted by philsteroni

Ok, lemme get this straight. The software is`nt custom software, it is the powerchip 330 tuning software.When you slap the intake in and do the software the disa valves operate just like a 330?

It's been mentioned in this thread that the DISA valves will work like the 330i with the stock 325i software.

issabmw · 04-21-2010, 09:40 PM

Quote:

Originally Posted by e90pilot

It's been mentioned in this thread that the DISA valves will work like the 330i with the stock 325i software.

Correct, the 325s ecu contains software for opening the valves during different intervals or the powerband, hence approx 8hp gains.

Some people reported flat spots in the full throttle acceleration. This can be fixed with software.

issabmw · 04-21-2010, 09:47 PM

Quote:

Originally Posted by philsteroni

Ok, lemme get this straight. The software is`nt custom software, it is the powerchip 330 tuning software.When you slap the intake in and do the software the disa valves operate just like a 330?

They open on stock software.

Any different software we could buy? Anything cheaper than the powerchip that works with the 325?

Classycali · 04-21-2010, 09:48 PM

Quote:

Originally Posted by issabmw

Correct, the 325s ecu contains software for opening the valves during different intervals or the powerband, hence approx 8hp gains.

Some people reported flat spots in the full throttle acceleration. This can be fixed with software.

okay, so do i send in my 325i ecu for a 330 tune or do i need a 330 ecu for it to get tune

e90pilot · 04-21-2010, 10:24 PM

Quote:

Originally Posted by Classycali

okay, so do i send in my 325i ecu for a 330 tune or do i need a 330 ecu for it to get tune

Both cars use the same ECU.

wuchao1 · 04-21-2010, 11:14 PM

So, basically what I will need to do is to order the intake manifold and install it myself-- that will gain 8hp... And get the powerchip which will give me a total of extra 30hp. Am I right? I was being a bit confused after reading all six pages..

e90pilot · 04-21-2010, 11:28 PM

Quote:

Originally Posted by wuchao1

So, basically what I will need to do is to order the intake manifold and install it myself-- that will gain 8hp... And get the powerchip which will give me a total of extra 30hp. Am I right? I was being a bit confused after reading all six pages..

Correct me if I'm wrong... But didn't I say that in my first post? Lol!

wuchao1 · 04-22-2010, 08:17 AM

Quote:

Originally Posted by e90pilot

Correct me if I'm wrong... But didn't I say that in my first post? Lol!

yea you did.. its just after reading all six pages I got a bit confused with all those numbers and charts.. lol

wuchao1 · 04-22-2010, 08:32 AM

has anyone try to combine this tune with an aftermarket intake? outcome?

Juan.sidarta · 04-22-2010, 12:49 PM

Quote:

Originally Posted by wuchao1

has anyone try to combine this tune with an aftermarket intake? outcome?

this shouldn't be a problem, should it? I mean, the thing that is changed is the manifold and the ECU. But I dnt think there should be much difference in hp gains..

jabwind51 · 04-22-2010, 02:07 PM

Quote:

Originally Posted by Juan.sidarta

this shouldn't be a problem, should it? I mean, the thing that is changed is the manifold and the ECU. But I dnt think there should be much difference in hp gains..

intake won't really do too much besides sound and easier RPM climb, and maybe a bit more low end torque. but this is still noticeable.

actual hp gains are prob somewhere between 3-6 hp from an intake, although some claim 10 hp like the injen, but i don't remember if this is actual, and i have heard that there is also some loss at a certain RPM.

( i have bmw perf intake FWIW. )

and this MOD would 100% NOT be affected by different intakes or exhausts, except for perhaps helping in power gains. so there won't be any problems springing up from varying set-ups.

sandman0615 · 04-22-2010, 03:10 PM

i just typed 11617559523 into realoem and its showing this part is for both 330 and 328.

heres the e90s it says:

E90: Details on E90

E90 328i Sedan
E90 328xi Sedan
E90 330i Sedan
E90 330xi Sedan

is it possible the 328s already use the manifold? perhaps with downgraded software which is why it only has 15hp over the 325 rather than the 30hp of the 330

sandman0615 · 04-22-2010, 03:12 PM

oh i see now the 328s are for the n51

IancoleTX · 04-22-2010, 04:13 PM

Quote:

Originally Posted by sandman0615

oh i see now the 328s are for the n51

What?

e90pilot · 04-22-2010, 04:28 PM

Quote:

Originally Posted by IancoleTX

What?

Some 328s have the n51 engine. It's an SULEV engine.

IancoleTX · 04-22-2010, 05:10 PM

Quote:

Originally Posted by e90pilot

Some 328s have the n51 engine. It's an SULEV engine.

And would therefore be ineligible for this swap?

Which models came with this engine?

e90pilot · 04-22-2010, 11:39 PM

Quote:

Originally Posted by IancoleTX

And would therefore be ineligible for this swap?

Which models came with this engine?

The N51 has a 3-stage intake manifold already so there's nothing to swap. It's internals are different from the N52 so 330 software will not work. You can get software specific to that engine. Go to www.realoem.com and enter in the last 7 of your VIN and it will tell you what engine you have.

huchung · 04-23-2010, 01:14 PM

great job on the swap man...are you planning on writting up DIY for this mod?

04-21-2010, 03:03 PM	#112
e90pilot Freight Dawg 108 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	328 owners: if you have an N52N, this mod will most likely work. The engine block pistons and exhaust manifolds are the same as a 330. The rest of the exhaust will have no bearing on software tuning. If you have an N51 you already have a 3-stage intake manifold but your compression ratios are different so this will not work. However, you can just get aftermarket software and get more power with the engine you have. You can go to www.realoem.com and compare the part numbers to double check. PBX owners: Using this in conjuction with aftermarket engine software is not a good idea. It's like saying, "I want an AFE intake and a Gruppe M intake." That will probably not work out well. Aftermarket tuners can tune the throttle for you. Also, ECU will most likely adapt out the tuning from the PBX if you go with aftermarket tuning. __________________ --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 \| Deiselboost caliper brackets \| E46 M3 front rotors Last edited by e90pilot; 04-21-2010 at 03:16 PM..
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04-21-2010, 04:13 PM	#113
IancoleTX Dillo boxers 278 Rep 3,359 Posts Drives: 2019 M5C Join Date: Jan 2010 Location: USA iTrader: (14)	Interesting. I want before-and-after dyno sheets on a 328i. __________________ 2019 M5C Matte MBB / Tartufo
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04-21-2010, 05:58 PM	#114
philsteroni Private First Class 12 Rep 144 Posts Drives: 325xi Join Date: Apr 2009 Location: Montreal iTrader: (1)	Ok, lemme get this straight. The software is`nt custom software, it is the powerchip 330 tuning software.When you slap the intake in and do the software the disa valves operate just like a 330?
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04-21-2010, 11:14 PM	#120
wuchao1 台北台灣 44 Rep 619 Posts Drives: 2004 MazdaSpeed Miata Join Date: Apr 2009 Location: Michigan State Spartans / Taipei iTrader: (5)	So, basically what I will need to do is to order the intake manifold and install it myself-- that will gain 8hp... And get the powerchip which will give me a total of extra 30hp. Am I right? I was being a bit confused after reading all six pages.. __________________ 2006 E90 325i AT TiAG...Sold! 2000 E39 M5 "The Beast"...Sold! 2004 Mazda Speed Miata... Bone Stock... 2000 Ford Explorer... Beater all the way
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04-22-2010, 08:32 AM	#123
wuchao1 台北台灣 44 Rep 619 Posts Drives: 2004 MazdaSpeed Miata Join Date: Apr 2009 Location: Michigan State Spartans / Taipei iTrader: (5)	has anyone try to combine this tune with an aftermarket intake? outcome? __________________ 2006 E90 325i AT TiAG...Sold! 2000 E39 M5 "The Beast"...Sold! 2004 Mazda Speed Miata... Bone Stock... 2000 Ford Explorer... Beater all the way
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04-22-2010, 03:10 PM	#126
sandman0615 bimmer freak 99 Rep 579 Posts Drives: F30 335xi 6MT Join Date: Sep 2009 Location: USA iTrader: (2)	i just typed 11617559523 into realoem and its showing this part is for both 330 and 328. heres the e90s it says: E90: Details on E90 E90 328i Sedan E90 328xi Sedan E90 330i Sedan E90 330xi Sedan is it possible the 328s already use the manifold? perhaps with downgraded software which is why it only has 15hp over the 325 rather than the 30hp of the 330
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04-22-2010, 03:12 PM	#127
sandman0615 bimmer freak 99 Rep 579 Posts Drives: F30 335xi 6MT Join Date: Sep 2009 Location: USA iTrader: (2)	oh i see now the 328s are for the n51
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04-23-2010, 01:14 PM	#132
huchung Second Lieutenant 5 Rep 249 Posts Drives: BMW Join Date: Mar 2006 Location: Los Angeles, CA iTrader: (4)	great job on the swap man...are you planning on writting up DIY for this mod? __________________ What did the five fingers say to the face? COOOOOLD BLOODED!
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