M52tu B28 to M54 330i manifold swap.why

Antm72

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Lots say the injectors are not needed though as all they do is just throw more fuel through?
I imagine when remapping though getting good fuel flow through as well as air is fundamental to getting the best results.
 

Rha

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Look out for the E60 M54B30 it could be little known that it's the same as the 330i and the Z30. Might catch a steal.;)i
RHS,Roy.
PS; your 2.8 injectors will stop it overfueling and can handle the extra air, the're only needed if you go bigger displacement. AFAIA.:bored:
Roy.
 

oldcarman

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Yup, definitely need to make sure you have enough air to match the bigger injectors if you go that route. JIM
 

g8jka

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Its got 320i written on it ...lol i imagine the disa etc may be different the 3.0 is defo bigger than the 2.8 it must play its part in the upgrade.:thumbsup:
Its the same part number as the one gookah has fitted to his, which is fitted to the 320 (2.2 M54) and the ports are definitely bigger and so is the disa compared to the 2.8 one. I wonder if this produces the same results but no one has ever gone down that route as they only believe the 325 or 330 ones fit? Yet I have just found one on eBay with the part number from the 320 which says it has been removed from a 325?!

Disa fitted to 320 2.2 manifold on left and 2.8TU on right

upload_2017-1-13_22-32-20.png
 

Rha

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Jim I believe it's the volume in the combustion area that it's all down to and the 2.8injectirs are just fine the purple are overkill no needed although will work, but the pressure won't be altered
Roy.:happy:
 

Rha

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Its the same part number as the one gookah has fitted to his, which is fitted to the 320 (2.2 M54) and the ports are definitely bigger and so is the disa compared to the 2.8 one. I wonder if this produces the same results but no one has ever gone down that route as they only believe the 325 or 330 ones fit? Yet I have just found one on eBay with the part number from the 320 which says it has been removed from a 325?!

Disa fitted to 320 2.2 manifold on left and 2.8TU on right

View attachment 48058
Part number for DISA for the 330i, Z3 30, E60 inlet manifold is; 11 61 7525 752.

RHA, ROY.
 

g8jka

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Part number for DISA for the 330i, Z3 30, E60 inlet manifold is; 11 61 7525 752.

RHA, ROY.
That number shows up on realoem as fitted to both the 320 and 325 E46's plus the 2.2 Z3's which leads me to believe that the M54 2.2 ones should also work. If the 2.5 intakes work then surely the 2.2 ones do the same if they are showing as fitting both models.
 

Rha

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Someone needs to push the boundaries and that £18.99 mani is cheap as chips, if the ICV comes with it and is OK then it's worth it for that alone(Bosch ICV new £170). If the part numbers are the same as gooka's then it's got to fit, as for the performance gain if gookah is happy with it why wait. I would have bought it if this info was available to me before I did mine, still might just for the ICV and sell it on.(if one of you don't) The sellers out there know that the TU is becomming a more popular mani mod swap and if you wait too long they'll try their luck price wise.
Might buy em all up and do just that.=)):whistle:

Roy.:happy:
 

g8jka

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Might be worth a try at that price if it includes the DISA and ICV as pictured and its the same part number as Gookahs which seems to have worked. I've chickened out and gone for one off a 3.0 though, albeit an X5 which has the same engine code and specs as a 330. Couldn't find the part number on real oem for it though as its listed as 7523291.

From what I found the 2.5 ones have the part number 7523290 or 11617525752. So the one I have is ending 291 which I think the equivalent part number will end 753, which is the one you have Roy. Anyway its from an M54B30 as far as I know and it comes with the DISA and ICV so I will wait and see what its like when I get it. Paid £55 which will be a bargain if the DISA is correct and working otherwise I'm looking at another £80 on top. Adaptor plate cost me £22.69 direct from Bimmertune. Once fitted I can compare with Gookah to see if there is actually any difference.
 

Rha

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Might be worth a try at that price if it includes the DISA and ICV as pictured and its the same part number as Gookahs which seems to have worked. I've chickened out and gone for one off a 3.0 though, albeit an X5 which has the same engine code and specs as a 330. Couldn't find the part number on real oem for it though as its listed as 7523291.

From what I found the 2.5 ones have the part number 7523290 or 11617525752. So the one I have is ending 291 which I think the equivalent part number will end 753, which is the one you have Roy. Anyway its from an M54B30 as far as I know and it comes with the DISA and ICV so I will wait and see what its like when I get it. Paid £55 which will be a bargain if the DISA is correct and working otherwise I'm looking at another £80 on top. Adaptor plate cost me £22.69 direct from Bimmertune. Once fitted I can compare with Gookah to see if there is actually any difference.
That's really good news and your persivierance has paid off, fingers crossed your Z turns out as good as mine and you'll be looking in your rear view mirror for your dad.=)) And he'll be looking in his for me:meh:. This also means that the way you managed your engine swap your ind/mani will be on by tomorrow night.:whistle:
Don't know how you matched them numbers up but well done cos it's a nightmare, be nice of you if you keep that info for others that want to do this mod.
See you and your dad this summer hopefully for a good chat adout it all.

Roy.
 

oldcarman

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Jim I believe it's the volume in the combustion area that it's all down to and the 2.8injectirs are just fine the purple are overkill no needed although will work, but the pressure won't be altered
Roy.:happy:
I agree @Rha what I said was he needs to make sure he can supply enough air to match larger injectors IF he goes that route. If he goes to bigger injectors he has to ensure air volume is correct or will be running rich and I don't know if the computer will be capable of adjusting enough to make use of the extra fuel without remapping. JIM
 
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m3toz3

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Hello guys, trying to revive this thread because i am also planning to do a manifold swap.
i have 2000 z3 2.8 m52tub28 and swapping it to m54b25 from 2001 325ci. is this worth the swap or should i find a m52b30 from a 330?
is it worth the swap?
i am currently waiting on my schmieddman headers and i have magnaflow cat back. after the full exhaust i am planning to do the intake manifold if ever i found a good source to follow.
Please help and Thank you in advance !
 

NZ00Z3

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Both are better than the M52TUB28 manifold, but the M54B30 manifold is best.
 

m3toz3

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I just pulled m54b30 intake assembly with disa and icv and ccv came from 2001 x5 3.0 same intake manifold.
Can i use my reuse fuel injectors and fit it to my new intake?
My understanding is i need a TB adapter plate (may need to shave the metal to fit)
New disa and new icv came w m54b30 ( or can i use my old icv)
Maybe hoses but everything else i should be able to use?
Im also fitting oil catch can so i can eliminate the ccv but can i also use my old ccv ?
Please need guidance as i am going to do this all by myself. Im preparing everything.
Thank you
 

Sajk

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I have the M54 3.0 intake manifold on my M52TU. The stock injectors can flow enough fuel in NA applications. I also have the M54 3.0 intake camshaft which is a drop in as the heads are identical. This cam has more lift and duration and still the stock injectors are enough although I strongly recommend a remap to add the additional WOT fuel you will need.

The combination of the cam and intake manifold has increased WOT airflow by 8-10% as measured by the MAF and now instead of running out of breath this thing screams to 7k and pulls hard all the way. You do seem to loose a little seat of the pants torque below 3k but in a Z thats not really an issue. In a 2.5 ton 7 series maybe.

If you do the job yourself (and I did not) make sure to be sure to label all the wires you disconnect. The guy who did mine did not and there is only two wires that can be mistakenly incorrectly connected which results in a blown fuse and a no start situation. These are the oil pressure sensor and fuel breather solenoid wiring.
 
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m3toz3

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I have the M54 3.0 intake manifold on my M52TU. The stock injectors can flow enough fuel in NA applications. I also have the M54 3.0 intake camshaft which is a drop in as the heads are identical. This cam has more lift and duration and still the stock injectors are enough although I strongly recommend a remap to add the additional WOT fuel you will need.

The combination of the cam and intake manifold has increased WOT airflow by 8-10% as measured by the MAF and now instead of running out of breath this thing screams to 7k and pulls hard all the way. You do seem to loose a little seat of the pants torque below 3k but in a Z thats not really an issue. In a 2.5 ton 7 series maybe.

If you do the job yourself (and I did not) make sure to be sure to label all the wires you disconnect. The guy who did mine did not and there is only two wires that can be mistakenly incorrectly connected which results in a blown fuse and a no start situation. These are the oil pressure sensor and fuel breather solenoid wiring.
Thank you, wow the cams thats something i would want also but im in have no mechanical experience to dig that deep inside the engine. it is a junkyard so dont matter what i do w the donor car but.... let me research thank you!!
so the m54b30 and m52tub28 is a double vanos. did u literally just drop in the heads?
i just recently did my vanos refresh. did u change anything in your vanos?
 
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Sajk

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Thank you, wow the cams thats something i would want also but im in have no mechanical experience to dig that deep inside the engine. it is a junkyard so dont matter what i do w the donor car but.... let me research thank you!!
so the m54b30 and m52tub28 is a double vanos. did u literally just drop in the heads?
i just recently did my vanos refresh. did u change anything in your vanos?
The m52tu 2.8 head and the m543.0 head share a part number. Same part. Exhaust cam timing on both engines is the same but M54 3.0 intake has a mild performance intake cam which is a drop in on M52tu. At my altitude I measured about a 5% increase in airflow at WOT. You need to remap to add WOT fuel.
 

m3toz3

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The m52tu 2.8 head and the m543.0 head share a part number. Same part. Exhaust cam timing on both engines is the same but M54 3.0 intake has a mild performance intake cam which is a drop in on M52tu. At my altitude I measured about a 5% increase in airflow at WOT. You need to remap to add WOT fuel.
Hi there. i am closing to begin the intake swap. i am just waiting for the adapter.
back to intake cam. sorry if im asking questions bit by bit.
do you happen to know if you paid to change the lifters or u can use the m52tu lifters?
 
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