M54B30 ZHP engine swap into 323

Originally Posted by lab rat

Nice setup, the engine stand is well worth it. Do the rear crankshaft seal before you put it on the stand.
I admire your confidence with car electronics. I wish I was this brave

thanks for the suggestion.
is the crankshaft seal #5 on realoem (link below)?

http://www.realoem.com/bmw/showparts...67&hg=11&fg=10

Do you know how hard is it to install the seal?

P.S. Stupid question but how do i secure the engine to the engine stand. I

I know it's a little off topic but your old engine what will you do with that one?

Originally Posted by JuicyE46

I know it's a little off topic but your old engine what will you do with that one?

promise not to laugh? I get attached easily (I am very sentimental)....so after the swap I am going to put the M52TU on the engine stand and put it on display either in the garage or study room.

Turn it into a table like on Top Gear.

Originally Posted by fadeaway

turn it into a table like on top gear.

+1000000

Originally Posted by fadeaway

Turn it into a table like on Top Gear.

dammit, you beat me to this idea!

Do it.

Originally Posted by flashtwosix

thanks for the suggestion.
is the crankshaft seal #5 on realoem (link below)?

http://www.realoem.com/bmw/showparts...67&hg=11&fg=10

Do you know how hard is it to install the seal?

P.S. Stupid question but how do i secure the engine to the engine stand. I

Yeah, that's the one. Obviously while you are there you should do #2 (giggle) as well.
It's very easy DIY even with the motor in the car. You just can't do it on the engine stand.
You will need 4 long M12 bolts for the engine stand. They go where the 4 big transmission bell housing bolts normally mount.

Originally Posted by lab rat

Yeah, that's the one. Obviously while you are there you should do #2 (giggle) as well.
It's very easy DIY even with the motor in the car. You just can't do it on the engine stand.
You will need 4 long M12 bolts for the engine stand. They go where the 4 big transmission bell housing bolts normally mount.

got it. i will make sure I change out #2 as well.

with regards to the mounting the engine, it makes total sense now.
i am using a lot of PEI330 pictures as reference and here is a picture of his engine mounted on his stand using the tranny bell housing bolts

http://my330i.com/forums/showpost.ph...&postcount=116

Originally Posted by mkodama

Has this plan been revised? Nothing in this original plan sounds like it will work.
-Original injectors won't put in enough fuel with 330 software, since 330 makes calculations based on higher flow fuel injectors.
-330 ecu and software do the calculating from throttle pedal to throttle body, so is wiring going to be different and how will the ECU react to not having all inputs?
-Will a Conforti Shark Injector even allow you to replace software of one model with another for liability reasons?
-Will your ECU even be compatible with the needed software?

She's swapping the block and using her existing ECU and sensors. Well see how it turns out.

do a build thread. im sure plenty of people would love to follow the thread. I cant recall the name of the guy that just did the swap with the s54. I want to do a engine swap one day in the next few years. got 200k on mine

Originally Posted by Iceman00

She's swapping the block and using her existing ECU and sensors. Well see how it turns out.

From a programmable Bosch ECU guide:

The injection time depends mainly on throttle position, engine speed, fuel pressure and injection valve type. To get a first estimation, the following characteristics must be known:
• displacement per cylinder VC (m3)
• expected intake manifold pressure (after throttle) pi [Pa]
• desired lambda value ***955;
• operating fuel pressure pf [bar]
• injection valve flow rate Qstat [g/min] at reference fuel pressure pfRef [bar]
• intake air temperature Ti [K]
The fuel mass mf is calculated by: ...

The only difference with the E46 setup is in place of manifold pressure and intake air temperature there is a MAF. If you change the block, the displacement value goes wrong. The ECU will still calculate fuel, but it will have an incorrect value, and will inject incorrect amounts of fuel.

With a larger displacement, and no other changes I'd expect the mixture to run lean, misfires would occur, the engine would try some enrichment compensating, and then go into safe mode.

Maybe a ghetto fix would be just install an adjustable fuel pressure regulator, and slowly up the fuel pressure, until the engine compensation amounts were close to neutral. The mapping probably wouldn't be ideal though, as camshaft and intake properties would throw things off in a few areas.

Originally Posted by Sweeney921

Enjoy the new project! Someday when I have a backup DD I'll have a go at an engine swap up to the S52, I'm too emotionally attached to my 330Ci to give it up for an M3. You're my hero for doing a swap.

Do you mean the S54? I mean in all honesty, the S52 is a nice motor but not really an upgrade from the M54. More like stepping sideways-ish...

Originally Posted by mkodama

From a programmable Bosch ECU guide:


The only difference with the E46 setup is in place of manifold pressure and intake air temperature there is a MAF. If you change the block, the displacement value goes wrong. The ECU will still calculate fuel, but it will have an incorrect value, and will inject incorrect amounts of fuel.

With a larger displacement, and no other changes I'd expect the mixture to run lean, misfires would occur, the engine would try some enrichment compensating, and then go into safe mode.

Maybe a ghetto fix would be just install an adjustable fuel pressure regulator, and slowly up the fuel pressure, until the engine compensation amounts were close to neutral. The mapping probably wouldn't be ideal though, as camshaft and intake properties would throw things off in a few areas.

Originally Posted by mkodama

Has this plan been revised? Nothing in this original plan sounds like it will work.-Original injectors won't put in enough fuel with 330 software, since 330 makes calculations based on higher flow fuel injectors.
-330 ecu and software do the calculating from throttle pedal to throttle body, so is wiring going to be different and how will the ECU react to not having all inputs?
-Will a Conforti Shark Injector even allow you to replace software of one model with another for liability reasons?
-Will your ECU even be compatible with the needed software?

Original injectors won't put in enough fuel with 330 software
when did I say I was running 330 software?

wiring going to be different and how will the ECU react to not having all inputs?
when did I say I am going to run a MS43 or MS45 engine wire harness and DME?



you have no reading comprehension and just came in here with your negativity. I would even say you came in here just to "rain on my parade." next time, I suggest you read the thread before commenting.

The only valid thing you said so far is the "lean codes" but I am sure I won't run into that problem. The 2.8L and 2.5L uses the same injectors and I think the stock injectors is rated up to 210-220HP.

Anyhow, I might be a "newbie" so I am sure this is why are you are shitting on my thread but what do you have to say about 4ngie and M4TT dropping in a 3.0L engine to replace's their B25 engine. 4ngie ran her car with the MS42 (325 Map) on the 3.0L and reported no major issues.

I am already talking to a few tuners to customized my MS42 Map to take advantage of the larger displacement and larger injectors. So if everything fails I will just get a custome tune and hopefully this will silence your non sense and negative views.

BTW...since you know it all, can you at least help me and contribute to my thread in a postive manner by answering my question:

what is the stock flow rate for the 323/328/325 fuel injectors? I know the B30 uses #24 but can't really confirm the B25. I keep on getting conflicting numbers from #16 to #22

if my project fails then I will be the first one to admit that I was wrong based on a lot of incorrect assumptions. Heck, I will even suck up my pride and ego and come on here and say "you are right." However, at least I can walk away knowing that I have bigger balls then you to try something like this.

lol, short temper today? I was just chatting about engine stuff. Notice most of the stuff I said had a question mark behind them and not a ?

If I wanted to come in hear and annoy you, I'd start putting stuff in bold and saying "YOU HAVE NO READING COMPREHENSION!!!!"

EDIT: oh wait, you already did that to me...

Jebus... this is the internets. Calm down, people.

Opinions are like @$$holes. Everyone has one.

M54B30 only
BMW Part No: 13 53 7 546 245
Manufacturer: Siemens
Manufacturer Part No: 1439800
Flow rate: 244cc/min or 23.2lbs/hr at 3 bar (43.5psi)
315cc/min or 30.0lbs/hr at 5 bar

All M54 and M52tu (excluding M54B30)
BMW Part No: 13 53 7 546 244
Manufacturer: Siemens
Manufacturer Part No: 1427240
Flow rate: 161cc/min or 15.3lbs/hr at 3 bar (43.5psi)
208cc/min or 19.8lbs/hr at 5 bar

Originally Posted by mkodama

Yes, bow down before my trolling and arrogance with somewhat useful information. Ok, now I'm going to troll somebody else who is in over their heads.

M54B30 only
BMW Part No: 13 53 7 546 245
Manufacturer: Siemens
Manufacturer Part No: 1439800
Flow rate: 315cc/min or 30.0lbs/hr

All M54 and M52tu (excluding M54B30)
BMW Part No: 13 53 7 546 244
Manufacturer: Siemens
Manufacturer Part No: 1427240
Flow rate: 208cc/min or 19.8lbs/hr

thanks for the 2.5 flow injector answer (sincerely mean this) but I think your B30 flow rate is wrong. a lot of people keep on saying that the B30 flow rate is 30lbs/hr but PEI330 has confirmed that it is istead a 24ft/lbs. I will put my money on PEI because 1) he is Canadian and 2) he is a god

here is what PEI330 wrote on his amazing build thread on my330i


With "spark" handled, I turned my attention to fuel. The purple ones are the OEM 24 lb/hr injectors, the maroon ones are new 30 lb/hr injectors:



It appears that the OEM injectors have a directional nozzle that points towards the valves. The OEM injector is on the left, new one on the right:

Originally Posted by flashtwosix

I will put my money on PEI because 1) he is Canadian and 2) he is a god

and 3) PEI330 now has mkodama's car and made it more bettererest than mkodama ever did.

Originally Posted by mtnbound

and 3) PEI330 now has mkodama's car and made it more bettererest than mkodama ever did.

Flash a couple of things ...

1-Im so subscribed to this thread.
2-I you for the attempt.
3-Please document and post pics of every Inch and detail as many 323I owners will be most likely doing this after you do It.
4-Will you be parting any thing from youre 323 ?
5-Have a look at DYNOTUNE...may wanna get a euro flash...

Ill be back with more ...