Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

[clemgoh]

This looks interesting
Stage 3 Performance Upgrade for 2006 325i (E90/E91) - Software & Intake/Exhaust Manifolds 325i (E90 E91) [SIZE=+0][/SIZE]

Adds
1) A new freer-flowing intake 3-Stage manifold vs 1 stage - The intake manifold is very easy to install as the factory wiring harness will accept the new manifold with just a few clicks.

2) High-flow catalytic converters - Removal of the exhaust manifolds is relatively simple and the new manifolds are just bolted right in -- no cutting or welding required

3) Performance tuned software to match - The Stage 3 software is a re-flash of the software in the car's engine computer. We alter the computer's fuel and spark mapping, adjust the throttle response, adjust the cam and Valvetronic timing,

Peak HP: 262hp @6300rpmMax HP gain = 50 hp @4700rpmPeak Trq: 223lb/ft @4500rpmMax Trq gain = 38 ft-lbs @4000rpm


Turner Motorsport - Item# TN52-ST3 - Stage 3 Performance Upgrade for 2006 325i (E90/E91) - Software & Intake/Exhaust Manifolds - E90 E91

Price: US$3,995.00

 

[Puny]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

The US version of the 325i uses a 3.0l engine block. There is a high chance that this stage3 kit from Turner motorsports is the the US version of the E90 325i, unless they state otherwise.. I'm not sure if it's feasible on the Asian/European version.

 

[grappleking88]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

The N52 engine block (which is almost 4 years old since its introduction in 2004) doesn't seem to have much engine power upgrade options except for maybe ECU remapping. Most current aftermarket option parts/software also tend to cater to the previous M54 engine generation. Hopefully, more options to improve the horsepower and torque in the N52 engines will be made available soon especially for the 2.5 litres version of the 325i and 525i models.

 

[Puny]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

Just checked the Turner website more thoroughly and it's indeed for the N52B30 block which is the US version.

 

[wilman2772]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

Another point to add.....anything to do with exhaust manifolds from States, it's only for LHD cars!

So it wun fit our RHD cars here!!

So, can forget about this Stage3 mod yah!

kekekeke


'The Great White'

 

[clemgoh]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

How about as an Upgrade for e90 323 models?
If I am correct the e90 323 is a tuned down 2.5 with the e90 325 with the tuned up same engine N52B25 block. This could mean that this upgrade would be useful for the 323 models in Singapore as a upgrade?

 

[wilman2772]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

How about as an Upgrade for e90 323 models?
If I am correct the e90 323 is a tuned down 2.5 with the e90 325 with the tuned up same engine N52B25 block. This could mean that this upgrade would be useful for the 323 models in Singapore as a upgrade?

You still can't.

Intake manifold is the same for N52 323 & 325. No diff.

View attachment 17927

http://www.realoem.com/bmw/partxref.do?part=11617559525&showus=on&showeur=on

Unless you try buying the N52 330 intake manifold....?

http://www.realoem.com/bmw/partxref.do?part=11617559523&showus=on&showeur=on

I think Turner can't reflash European ECU.....

High flow LHD exhaust manifold can't install into our RHD cars, so this Stage3 mod is out for you.

Local Reflash can get about 12~15bhp max........


'The Great White'

 

[clemgoh]

Stage 3 Performance Upgrade for e90 323/325?

Thanks for the research. My months of desktop research too seems to indicate the following...

USA 325 and 330 is a 3 litre engine N52B30 but 325 is detuned - 1 stage intake manifold + lack high flow Exhaust + lower ECU tuning

So USA 325 upgrade to a 3 stage intake manifold + corresponding optinmised exhaust and ECU to match makes the 325 closer to the 330

However 325 e90 in Singapore is 2.5 litres unlike the USA models.

So since Singapore's 323 and 325 are 2.5 litres, this means that the 323 is a detuned version and likely a 1-stage intake manifold and so on....

Taking the same approach, the 3-stage intake + tuning (except the LHD/RHD exhaust issue) should take the 323 performance clower to that of a 325 ....

I did check before the Realoem site and believe that the 323 is 1-stage (since this will always be an odd model with a detune 2.5, but not sold in the USA except canada, Britan and some parts of Asia) and the USA 325 is also 1-stage (detuned but 3-litre engine) and thus, you will find no difference in the intake type mentioned.

So - Since 323 is a single stage - then a 3-stage will cetainly help with the right adjustments to ECU etc... surely and this is available for purchase at the turner motorsport site. Turner Motorsport - Item# TN52-ST3 - Stage 3 Performance Upgrade for 2006 325i (E90/E91) - Software & Intake/Exhaust Manifolds - E90 E91

Say if J4C can bring this in and refabricate the Exhaust to RHD? Then this would really boost the power than the limited ECU tweak without optimised airflow.

Comments anyone?
Cheers!

 

[IntegraTypeS]

Re: Stage 3 Performance Upgrade for e90 323/325?

Hi Clemgoh, very detailed research you done there... i am also closely following the development of these N52 blocks... and more or less end up with your conclusion... i will add a few additional comments;

1) 1 stage to 3 stage manifold upgrade is tough.... 325/330 in the US are still trying to crack it, some claimed hav, but no hard data... most likely a frankenstein mod

2) 325i N52B25 is already top of the game, with an updated reflash its can reach 231HP, few cc short of M class efficiency of 1HP/cc, very good liao for a non-M

3) N52B25 is alum-alloy and has many weight saving features, like hollowed out camshafts... all these does not reponse well to tuning and especally TC/SC, its not as strong as a traditional cast-iron block...

4) its already highly tune to start with, coupled with the advance engine design... leads to very few after mkt parts...

Hope to hear some positive news...

 

[grappleking88]

Re: Stage 3 Performance Upgrade for e90 323/325?

Maybe we can take the approach of improving the bhp-to-weight ratio like changing to lighter rims/tyres and also other upgrade options to improve the driveability/stability of the car.

 

[clemgoh]

Re: Stage 3 Performance Upgrade for e90 323/325?

Thanks for the nice message.
That is why this is for the 323 and 523 models in Singapore, that would push the performance to that of 325 and 525 correspondingly, for what the 2.5 litre can really do instead of the de-tuned state here.

This comes from example of the same concept done for the 3 litre engine, when the upgrade is for the USA 325 and 525 (which are detuned 3-litre models in USA) to pushing this to 330 and 530 respectively.
USA company Turner Motorsport - Item# TN52-ST3 - Stage 3 Performance Upgrade for 2006 325i (E90/E91) - Software & Intake/Exhaust Manifolds - E90 E91

I am hoping some shop can offer to do this, purchase intake manifold in, find a RHD high flow catalytic exhaust and then tune together with a new ECU.

 

[clemgoh]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

Thanks.
You know, since the 523 is not in the USA, how about comparing the intake for the 523 and 525 on the realoem site.... are they the same? What make the power difference for these two models then?

 

[desertfox65]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

Here is the diffrence between 525 and 523. The N52N engine on a 525 has a second "DISA" Motor while the 523 has only one in the intake manifold. THe Intake manifold is identical and the only thing missing is the second motor. You can easily replace the intake to the 525 or add the DISA motor. You will still need to re-program the ECU to get 525 parameters and operate the second DISA stage at around 5000rpm i believe. Now here is the actual problem: The ECU cannot be just reflashed with 525 software since the VIN and engine data is encoded in the software and rest of car electronics. therefore a reflash with 525 software on the 523 would require that someone ensure that VIN data is encoded otherwise it will just not work. All other parts between 523 and 525 are identical. hope this helps. If someone has the tools and equipment ot re-flash the ECU, then it is a fairly simple issue to resolve.

 

[Deadkookaburra]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

instead of pondering into the unknown why not just buy a 325 or 525?

 

[wilman2772]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

instead of pondering into the unknown why not just buy a 325 or 525?

Cos it was a S$40k issue back then between the 523 & 525.......kekekeke


'The Great White'

 

[pufferfish]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

Thanks.
You know, since the 523 is not in the USA, how about comparing the intake for the 523 and 525 on the realoem site.... are they the same? What make the power difference for these two models then?

Hi Clem,

Chanced upon this thread and have read through some of your posts. From your post, I gather you are driving a 2007 E90 325i. I am driving a E60 523i with N52B25 engine. Our engines should be the same. As the ECU upgrade is not currently available, the only other alternative really is to upgrade the engine. Do you have any further developments? Would be happy to chat further with you.

Thanks

 

[clemgoh]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

Hi puffer,
driving a 323 e90 - same engine as yours
understanding that the 2.5 is the same as the 525 and 325 - then the upgrade bit must be the 3-stage intake induction (some hardware) which can be purchased and installed... programming the ECU ... (software) which may be tricker with the encoding with the car VIN and the exhaust bits (more hardware) ....

I am hoping someone (J4C or others) will try to bring these

Turner Motorsport - Item# TN52-ST3 - Stage 3 Performance Upgrade for 2006 325i (E90/E91) - Software & Intake/Exhaust Manifolds - E90 E91

and offer to do this for me.... and others - so many 523s on the road to offer upgrade.

 

[desertfox65]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

was told recently that pml will discontinue 523 and bring in 520 followed with 525.....

 

[clemgoh]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

How you think we can persuade our BMW shop friends to offer this fix?

 

[eNerGy]

Re: Anyone? Stage 3 Performance Upgrade for 2006 325i (E90/E91) -

Hi Clemgoh,
I am driving a e90 323 too. Please count me in if you can find any shop that can do upgrade.
PMed you my mobile number already.

Thanks bro.

energy