[Buster Blue]

Hi,

Could any one advise if the 2.0i and the 2.8i share the same specification turbo.

Guess Nick will know, but just in case he doesn't any one advise.

[NISFAN]

Different part numbers on REALOEM.

[Buster Blue]

Originally Posted by NISFAN

Different part numbers on REALOEM.

Thanks guess I could have looked myself.

[Nick the Greek]

Just to confirm...

The 28i has a man's turbo.....

[Steven1077]

Originally Posted by Nick the Greek

Just to confirm...

The 28i has a man's turbo.....

[Buster Blue]

Originally Posted by Nick the Greek

Just to confirm...

The 28i has a man's turbo.....

Ohh there goes another one!!

[Buster Blue]

Originally Posted by NISFAN

Different part numbers on REALOEM.

Hi Sorry to dispute but just checked RealOEM and they are the same part Number.
So Nick I also have a mans one!!

F30 328i TURBO CHARGER

Language:
Sponsored links
RealOEM.com Home => Select another car => Engine => Exhaust manifold
Parts diagram Sponsored links
No. Description Supplement Qty From Up To Part Number Price Notes Photo
01 AT-TURBO CHARGER 1 11657635803


F30 320i TURBO CHARGER

Language:
Sponsored links
RealOEM.com Home => Select another car => Engine => Exhaust manifold
Parts diagram Sponsored links
No. Description Supplement Qty From Up To Part Number Price Notes Photo
01 AT-TURBO CHARGER 1 11657635803

Sorry Nick

However just also noticed that there is another part number for the 328i

No. Description Supplement Qty From Up To Part Number Price Notes Photo
01 AT-TURBO CHARGER 1 11657642469

[Ti Rich]

Didn't the early 328i have a mechanical waste gate on the turbo but the later ones have an electronic waste gate.

That may explain why there are two turbo parts listed?

[Buster Blue]

Originally Posted by Ti Rich

Didn't the early 328i have a mechanical waste gate on the turbo but the later ones have an electronic waste gate.

That may explain why there are two turbo parts listed?

That's it I'm sure, but for the avoidance of doubt Nick they are the same.

Thanks Rich.

[Nick the Greek]

In that case I welcome you to the man's club!

So the only differences in the engine is the different engine map, and, I believe, different shaped pistons. Presumably due to higher boost pressure in the 28i.

I wonder if there are any drive train changes? Clutch, drive shafts, box ratios and so on?

[Buster Blue]

Originally Posted by Nick the Greek

In that case I welcome you to the man's club!

So the only differences in the engine is the different engine map, and, I believe, different shaped pistons. Presumably due to higher boost pressure in the 28i.

I wonder if there are any drive train changes? Clutch, drive shafts, box ratios and so on?

Thanks Nick it means a lot!! found this on the forum just doing a little research before it gets DMS'd ie will it blow up as I still have 2 years warranty . I did read some time ago that the diff is different.


Engine vs Engine - 320i to 328i - Where is the missing 60HP?
F30 320i specs to 328i engines specs

With the roll out of the new entry level F30 320i BMW has kicked off a wave of discussion. Most interestingly the 320i and 328i both use the award winning N20; TwinPower single turbo, twin scroll, 2.0 liter inline 4 cylinder engine as the 328i. However the 320i is factory rated at 180 hp at 5,000 RPMs and 200 lb-ft of torque from 1,250 RPMs. On the other hand the 328i comes with 240hp at 5000 RPMs and 255 lb-ft of torque from 1250 RPMs. What happened to the missing 60 horses and 50 lf-ft of power if both cars are N20 powered?

The first obvious answer is something in BMW's DME control software that limits the power, most likely by limiting boost pressure, on the 320i. That appears to be true as both the 320 and the 328 use the same DME hardware (PN - 12148604210) and the same engine control system MEVD 17.2.9. With confirmation their is a software tweak to limit power on the 320i we go in search of other changes that might limit the 320is ability to make the same power the 328i N20 puts down.

Read more about the 2013 BMW 320i entry level 3 series

The next easy target is the intake, exhaust manifold and turbo. Surprisingly they turned out to be the same part number. In fact the 320i and the 328i share almost the exact same part numbers for all the major engine components.

Shared engine components between F30 320i and 328i
Cylinder head - PN 11127624778
Connecting rods - PN 11247624616
Crankshaft - PN 11212212762
Intake manifold - PN 11617588126
Air box - PN 13717597589
Air filter - PN 13718507320
Intercooler - PN 17517618809
Radiator - PN 17117600520
Throttle body - PN 13547588625
HPFP - PN 13517584461
MAF - PN 13627602038
DME/ECU - PN 12148604210
Exhaust manifold/turbo - PN 11657642469

See what is missing in the above list? The difference in the 320i and the 328i is the pistons. While both have a 10:1 compression ratio the 320i has a different part numbers for the pistons then the 328i. What that exactly means in terms of the ability to boost the turbo pressure and get 328 power from your 320 is not yet known.

Stay tuned as we continue to sift through BMW's technical documents searching for an answer.
tim330i is offline

[Nick the Greek]

I got the piston bit right then!