M52 in place of M50 [SWAP]

[bequa]

Hi guyz.

I have M50TU (B25) motor and I want to get a M52 (B28) to swap .

Has anyone done this thing, which parts of my M50TU will not work ?

Will the Transmission of M50TU fit on M52 and work without problem ? What about ECU ?


Thank you in advance, I will take pictures and keep you informed if you help me too )

[bequa]

Nobody ?

[328icod]

I'll give you a bump

[jskin1510]

the tranny should bolt up fine however everyone talks about the ZF tranny being significantly better. so that might be something to consider. IMHO i wouldn't swap the m52 for the m50 because it's so much work and money for little gain. unless maybe you blew your m50 and just want to get your car runnin for a cheaper price. I'd look into an s50 motor if i were you and going to do a swap but anyway good luck...

[Quailane]

All you get are .3 liters of displacement. Big waste for all your money and effort.

[bequa]

@ jskin1510 & Quailane

Thank you, for your advices .

yes, my engine is blown and I thought I would get M52 coz I cant found S50 in my country so easily .

So tranny will work, thats good, but what about wiring ? ECU software ?

[Quailane]

@ jskin1510 & Quailane

Thank you, for your advices .

yes, my engine is blown and I thought I would get M52 coz I cant found S50 in my country so easily .

So tranny will work, thats good, but what about wiring ? ECU software ?

You can convert your new engine to OBDI using the parts off of your blown engine. In that case it will drop right in.

[restricted]

i put the m52 in a 92 e36 and am running obd 1 you should swap the manifold,metal oil filter housing along with knock sensors,camand crank sensor from the m50 to the m52 cake walk

[bequa]

I bought '95 M50TUB25 (Out from 525 executive from Japan) .

Mileage is 42k only :)

There was M52s also, but I would have to change/modify wirings, ECU etc . I cant see my car dead so long time, so I bought M50TU .

Tomorrow I will install it on my car !


Thanks and regards.

[beebz07]

what are you going to do with the blown up one?

[Quailane]

what are you going to do with the blown up one?

It's not like he's going to give it to you. He lives in another country.

[bequa]

Thats right, I live in Georgia .

You can get one in your country with Shipping fee amount of this Motor . :)

[Nacanowhere]

if you have the cash, screw the m52... it's S50-S52 time... get one complete with a manual tranny for around 3k-4.5k in parts... if you can pull the old motor yourself it won't cost you any more than that.

Big time worth it when you consider even the most basic M5x swap will cost relatively little less $$$ than a much more satisfying setup.

If you're going to go the budget route I can understand that... but even then theres still a good argument to upgrade past the 32x's series driveline.

[losgalos1]

I Think You And I Have The Same Project Going On;

An Engine Swap For A 1992 325i E36 m50 To A M50tu From A 525i 1994,

Am I Correct?

If Yes,we Have Alot To Talk About.......
Reply,

[HellKat]

no losgalos, he is going m50tu to m52.

as stated before, it is a very easy swap. i would keep the ecu, all sensors and intake manifold from the m50, and convert the m52 to obd I. if you did that and just put in some s52 cams, you would have almost as much power as a stock m3 and you would save yourself major $. this is a very easy swap.

the tranny that usually bolts to the m52 is the same that they use for the m3. yeah it is a better tranny, but if you arent going for massive power outcome or anything strenuous, just stick with the one you have now.

losgalos if you need any help or advice just post here. there are a ton of members who are very knowledgeable, and can help you figure anything out!

[NYY42]

Yes its been done, see my sig.

[losgalos1]

There was M52s also, but I would have to change/modify wirings, ECU etc . I cant see my car dead so long time, so I bought M50TU .

I BELIVE IT IS THE WAY I SAID THIS IS WHAT HE POSTED EARLIER.LOOK AT POST.
AND YES I NEED ANY INFO AVAILABLE!
THERE ARENT ANY ENGINE SWAPS LIKE THE ONE I AM IN THE PROCESS OF,OR CORRECT ME IF I AM WRONG?

[losgalos1]

I Would Not Swap An M50tu For An M52,

There Is Very Little Hp Gain And An Obdii System That Is Very Much Complex.
The Usa. Ver. M50tu Is An Outstanding Piece Of Engineering It Is A Tech.modified M50 Engine.

Witch I Recall Is One Of The Best Engines The E36 Ever Had.

[NYY42]

I Would Not Swap An M50tu For An M52,

There Is Very Little Hp Gain And An Obdii System That Is Very Much Complex.
The Usa. Ver. M50tu Is An Outstanding Piece Of Engineering It Is A Tech.modified M50 Engine.

Witch I Recall Is One Of The Best Engines The E36 Ever Had.

You have no idea what you're talking about, no offense.

[losgalos1]

I Mean Dont Get Me Wrong All Bmw Engines Are Built To Precision.
And Well Your Swap Is Some What Intresting.obd1 To Obd2
But Now For The Cost Of A Obd 2 To A Obd1 Conversion Is Much More Expensive Andtime Taking.

What I Have Done After A Few Months Of Investigation Is
Re-enforce An M50tu Engine To Yhe Max And Then Installing A Turbo Charger.gain Is 192hp To 500hp+.

I Rather Invested In My Pre Obd2 M50tu W/22000 Miles By Upgrading From Piston Rings, Cams ,port Polishing,lightwieght Aluminum Crankshaft Pulley Kit.ect.

Now With My Engine Ready It Is Time To Install It To An E36 92 325i Chasis.

If Any One Has Ever Done Any Thing Like This Please Reply.

[HellKat]

I Would Not Swap An M50tu For An M52,

There Is Very Little Hp Gain And An Obdii System That Is Very Much Complex.
The Usa. Ver. M50tu Is An Outstanding Piece Of Engineering It Is A Tech.modified M50 Engine.

Witch I Recall Is One Of The Best Engines The E36 Ever Had.
thats why we all recommended that he change over to obd I. and there is very signifigant power gain, with the option to go much higher with other basic mods!


You have no idea what you're talking about, no offense.
+1


I Mean Dont Get Me Wrong All Bmw Engines Are Built To Precision.
And Well Your Swap Is Some What Intresting.obd1 To Obd2
But Now For The Cost Of A Obd 2 To A Obd1 Conversion Is Much More Expensive Andtime Taking.

What I Have Done After A Few Months Of Investigation Is
Re-enforce An M50tu Engine To Yhe Max And Then Installing A Turbo Charger.gain Is 192hp To 500hp+.

I Rather Invested In My Pre Obd2 M50tu W/22000 Miles By Upgrading From Piston Rings, Cams ,port Polishing,lightwieght Aluminum Crankshaft Pulley Kit.ect.

Now With My Engine Ready It Is Time To Install It To An E36 92 325i Chasis.

If Any One Has Ever Done Any Thing Like This Please Reply.

^^^^

wait what?

first you need to understand that when he puts the m52 into his previously m50 powered e36, he already has all the parts for the obdi conversion. it will cost nothing. and why would it take any more time than your swap? it would actually be quicker/easier. are you keeping the 402 or going 413?

and then you state that it would be better to build the m50. not only will that take time, but those are hardly upgrades. especially port polishing the head. have you ever even seen an m5x head? they flow quite well stock, and to get it polished is $ better spent elsewhere.

to top it all off, both engines are great for turbocharging. you want to build your m50 to get 500hp? well with an m52 and the tt stg 2 the m52 could already be close, and the m52 has been proven to acheive over 700hp with just a different headgasket that lowers compression closer to ~8.5:1.

you have a lot of learning to do. this is a great place to start.

btw: why do you type like that. what is the purpose of capitalizing every first letter? and is english your first language???

[dallas02E39]

Ok I have a few questions about M50 to M52 swap. If my M50 is a non-vanos then I assume I can't keep that computer to swap in a 97 M52? I don't want to use the computer from the donor 1997 because it is an automatic which I think is different than an ECU for a manual car? So I guess I have to find a 92-95 E36 ECU to keep the car ODBI?

[HellKat]

yes i suggest you go 413.

[MisterBimmerMan]

I Would Not Swap An M50tu For An M52,

There Is Very Little Hp Gain And An Obdii System That Is Very Much Complex.
The Usa. Ver. M50tu Is An Outstanding Piece Of Engineering It Is A Tech.modified M50 Engine.

Witch I Recall Is One Of The Best Engines The E36 Ever Had.
http://i17.photobucket.com/albums/b73/and1c/IMG_0500.jpg

[NYY42]

I know this is several months old but if anyone needs a chip to run an OBD1 328 I have one for sale.

[SHARKBITEATTACK]

I plan on doing this swap and would like to hear from some other who have done it as well.

2.5l stroked to 2.8l is almost an 11% increase in total displacement and the M50 could really use some additional torque below 3500rpm. Lot's of chevy musclecar guys put in a stroker kit to go from 350 to 383. That's even less of an increase in total displacement and 350's usually already have an excess of torque at low rpm's.