BMW M50 vs M52 vs M52TU vs M54 

Thanks Joel!

Мерси подобно :)

I don't think is going to be so interesting, but if the demand is high I will see what can I do about it :)

@@crank3646 everything here is about stroke, more power, torque... so i am in too!

A guy told me the capacity change from the stroke is it true that? So it would be lovely to see what happening with the cranks shafts ..!! Keep it up!

@@01sidiropoulos Yes, M5X engines change their capacity modifying the stroke. m50b25 is 75mm stroke m52b28 is 84 and m54b30 89.6. The m5Xb25 use 140mm rods, while the B28 uses 135mm rods, the M54b30 uses 135mm. The only one that breaks this rule is the m5Xb20 which has a smaller bore, smaller valves and camshafts.

@@MachoMostacho the M50B25 Non vanos uses 135mm rods, same length aswel as the b28 and b30 while the M50tüb25 (vanos) engine uses 140mm rods wich also makes the pistons different from one another

Non vanos m50 has different valve size.

Yep, but no one wants M54B30 crankshaft because its not reliable. So 2.8 is fine enough for me :)

the sound output would be nearly identical to the m54...

@@moneyshifters No it's not, the M54 is a 3.0L engine while the M52TU is a 2.5L

@@Ayixlia the m54 came in 3.0, 2.5, 2.2L variants. The M52TU came in 2.5, 2.0, 2.4 and 2.8L arrangements. Hope this helps.

Thanks! Haha this will be my relic :D

I was really thinking to try to make M52/54 with 300 hp, with cams like this + higher compression pistons and ITBs. But as usual, when you start doing your math, you are always going to say to yourself, just go with S54.

Or put a turbo on it. 😛

@@michaelblacktree Had a SC, removed it and sold it, prefer NA I6. If i want power would swap a N54/B58 and go for 600 easily.

@@UndeadCrook Do not polish and port the M54 head, you can't do better than stock. This is the silliest thing you can do with an M54 head without understanding how the M54 differs from the M50/M52. M50 / M52 are all aimed at reducing the fuel film in the intake, longer intake manifolds, etc. M54, on the contrary, relies on the fuel film as much as possible. The killer feature of the M54 is its excellent low/mid torque. This is achieved by using a fuel film on a specially shaped intake surface. Intake polishing turns m54 into m50 and loses low/mid torque. Yes, you pull out a little more power / traction at the top - but other things being equal, a ported motor will lose to an unported one in all conditions except for the only drag racing, perhaps ..

@@olegbelykh2840 Mine is for track so I have custom 272/272 cams and having the power up top is what i need ;)

many people at my work have experiance with turboing m52s, youll be fine, 400 is a good number, decomp,. plate and headbolts is enough, and it wont explode. good luck bud, im gonna turbo my m50 once the rest of the car is sweet!

As far as I know the internals are pretty durable. The biggest problem is that the old Bmw engines have pretty weak head bolts. They are pretty skinny (M10 only) which becomes even more difficult in aluminium blocks in my opinion. There are ways to bore out the threads and upgrade to M11 or even M12 but then you also have to drill cylinder head and even head gasket... Also the aluminium blocks are kind of sensitive to overheating. Once overheated in the past there is danger of the aluminium getting soft around the threads for the head bolts in the block so that they won't tighten anymore. However I don't know if you can eliminate this by boring out to M11 or bigger...

@@peterm3861 Most popular option is ARP head studs for iron block turbo builds. They're proven to work great without the need to drill and tap the block to M11. Guys with 1000+hp use custom age 625+ arp studs for around $600. You're more likely to throw a rod through the block than lift the head with those studs.

@@aamaramba Yeah in iron blocks some good head studs seem to do the job. I wonder if they would be a good solution for the alloy blocks or if the threads would just rip out. Newer all alloy engines use head bolts of greater diameter and length, that is really some weak point of the M5x engine family unfortunately. At least when boosting.

What engine do i have in my 1999 328i. I know it has the zf 5 speed transmission

@@finessedyawife4915 328i, your probably using the M52B28

I would choose m52b28tu

M52B28TU

@@atnstn why?

@@theylive8256 why?

Добре е да има поне един такъв човек :D

Im not 100% sure about the head but I believe you can since the m54 in general is the same engine what’s different from the B25 & B30 is the crankshaft,piston and rods they are different but interchangeable I also believe you can interchange b28 or tub28 internals into the b25 and or b30 m54

Do you sell it :D

@@crank3646 Nahhh, im building 3.0 from it :D

Nikasil is better, no doubt about it. It provides less friction that the sleeves. 8 psi should be save enough for this engines.

@@crank3646 sounds perfect for me then, probably going to stay NA for now and good enough for a little extra in the future, plus the lightest block. thanks for the reply and videos!

as far as I know its the opposite. The NV head has 1mm larger valves, so should have slightly better flow. As well as dual valve springs. So its a little happier with higher RPM

@@NeverEndingBuilds what nv means?

@@EliasRizk53 Non Vanos (no variable valve timing)

You can use NV or single vanos block with NV or single vanos head only. Double vanos block can use only double vanos head

If you’re that deep in the build, just keep your block and add NV pistons. They are beefy compared to the Vanos pistons.

M52 got a technical update in '98 and is now called M52tu, one of the improvements is that it got double VANOS. The other improvement was steel cylinderliners instead of Nikasil coated alu.

M54 has the crank sensor elsewhere? My (supposedly) M54 engine has the crank sensor at the bottom of the block.

why ?

M54 hat am wenigsten Leistung 😂 Die haben nie ihre Leistung

​@@alexbabtan2395 materials and sizes

M50 is more stronger for boost

Yup i have a 325i 92 coupe nonvanos m50b25. Cold start damm sound is so nice. Its a summer car only drive it sometimes in the summer

It Is

Yep but this is not an issue. Just use a hollow bolt on your Vanos supply hose, and you can add the 2nd sensor there. I will be doing this in my next video actually.

m54b30 intake cam and intake manifold

Yes I had a chance to buy one, but as usual it was with erased engine number and some damage to several threads... so I decided to let him sail a long the river :D

Thats what i got

@@crank3646 What is your solution to the weak head bolt threads in the aluminium block? M10 seems pretty weak for me, do you bore out to thicker head bolt diameter? Do you have a solution to the problem of damaged or weakened threads due to overheating the block in the past? Will boring out to M11 remove the weakened material? I am very interested in building M52B28TU turbo engine but I am scared of putting much work in it and then stripping a head bolt thread while assembling... Do you think my fear is reasonable? :D

@@peterm3861 There is always a risk if you don't know the past of the cylinder block. If it was severely overheated, there is no way to fix it, even with M12 threads. If it was minor, we use time-serts, without any issues.

@@crank3646 Thank you very much for the good information! Alright, so my concerns seem to be real. That is unfortunate. So before building a M5x aluminium block you should tighten head bolts and check if the threads are holding up... And by that procedure weakening the alu thread once again. Or is there any other possibility to check if the material is ok around the threads? I would love to go M52TU turbo with my E28 in the future but that damn issue is what keeps me from starting. It is the only reason I am still trying to decide between M20 turbo and M52TU turbo... Both weigh around the same, both lighter and easier to get than M50...

M52 iron block, m54b30 crank, pistons, and rods also b30 intake camshaft

@@tribewu3223 do you know if I can use the m50b30 intake cam on my m50b30nv? Using 413 ecu

@@dikkodikko6262 You are talking about using the M54B30 intake cam for your M50B25nv Stroker? I dont see there any problems, if so there could be space issues with the vanos gear but you can disassemble the vanos gear from the intake cam. I'm using M54B30 intake cam on my M50B30 with MS41 and using the M50B20nv Intake cam as exhaust cam (B25nv cams are the same but mostly more expensive). Timings for intake cam are normal (using the common BMW Cam-timing tool) and exhaust cam is open 1.0 mm at TDC. I can highly recommend (rebuild) Vanos on M50B30 with MS41, never felt such a big difference with Vanos on any other M50/M52 engine. Really kicks when it changes timings at mid-RPMs.

@@deepur2362 i was thinking of that route. Do you have any social media platform that i could msg you on?

@@dikkodikko6262 deepur91 @ insta

Very simple, m50 is top, m52 and m54

Everyone knows that US M52 engines are with sleeves, because of your fuel there. But in Europe we don't have that luck, so you are on the lucky side this time :)