Fabricating and Flow Testing Custom Intake Manifolds: BMW M50-M54 (Part 1) 

Stumbled on to this after watching some 8HP swap videos. I own an e39 540i 6-speed. Love watching this kind of content.

I’m mesmerized how metric mechanic mixes art and science to create beautiful components for maximum performance and beauty in their design. Keep it up Teddy, Tyler and team!

Super interesting data, thanks for this! if by any chance you ever get hold of a N54B30 intake manifold, it would be interesting to see how it compares to these M serie manifolds as it doesn't have nearly as hard bends as these do. And some people have claimed great results with it on M50 and M54 engines.

Please post more progress when you get the chance thank you looking forward to more

stumbled on your channel and checked out some other videos. Cool stuff you're doing! I'll be sure to follow this project.

Great video, can’t wait to see more

Nice! I want one of those for my 320i

Simply awsome work and effort 🤟

Amazing video

Hey mate, do you know what the ‘boost limit’ of an m52 manifold is? I stopped making more power beyond 20psi with a 3584r turbo, 3 inch dump and twin 2.25inch exhaust. I’m curious if I simply hit the limit of the m52 manifold or if it’s something else. Would like to hear your opinion.

Its been 11 months, please upload an update on this !

very interesting ! thx for sharing !

Interesting video. Is the idea for the manifolds for forced induction or N/A engines? I drive a e46 330 and it has always interested me that there does not seem to be that many tuning parts available for the M54, like larger throttle bodies and aftermarket manifolds etc. Some supercharger kits available and ITBs but as soon as you hear any one person mention anything about looking to tune their M54, there are 10-15 people commenting that it is a stupid idea and not many gains to be had from the engine.

What do you think about two throttle bodies ? More air more power ? I so Simple but I never see this solution , And I dont know why , for example 1 throttle body for bank 1 (1,2,3cylinder ) and second for next three cylinders , thanks for answer

Bro please show results and how it makes the car sound

damn did you guys turn your own injector bosses as well?

Wow, the stock m54 head intake port is quite a lot worse then m50tu? As someone that tried and built intake manifold myself, for m52tub28 engine, I know how much time and effort it requires! I did it quite a lot worse then you guys too :D. It worked, but I felt no gains, so i ditched it, should have made maf logs... M50 manifold made no improvements on my engine on a dyno, at the least m52tub28, if anything it showed 4hp less then m54b25 manifold... Im really interested to see the results you guys will get! Good job and good luck with the project! Manifolds look awesome.

Would you sell the first manifold? Maybe even make one for a reasonable cost?

Iv been wanting a new intake for my super charger set up , making for public sale ?

That small profile flange is from a 323

I have a M54B30 swapped into an E34, this is relevant to my interests. There is a lot of nonsense floating on the internet when it comes to the M5x intake manifolds, nice to see some actual testing.

I need a s50b30 turbo manifold how do I find this company please

are those beautys for sale??

I love how it is a centered opening instead of the cylinder 1 offset.

First I love this video because you're doing the stuff I love to do... But we need to get you a 3D printer. You are currently on step two. Fabrication of a useful manifold. Step one is to quickly iterate a bunch of designs with some plastic cheap and easy printed runners until you find what you want to make on the flow bench. Because doing all that work and tooling and everything Well we don't need to tell you how much work that actually is. But when you get to the end and you find out man you just need to change this one thing or it would work better if you did this differently... You want to find that out on the cheap plastic that automatically printed out while you were doing other things. You don't want to find that out after you have a week's worth of work in something.

Bro how can I order ah part from you I need ah m50 manifold

I really wish there was more of the for the M50. Porting, polishing, chamber shape. Almost nothing in the public domain. Never know if you are making something better or worse. More airflow isn't the answer to every question.

Hello, Do you sale the Intake manifold?

Thats a lot of work. Runners look quite short. It should breathe well at very high rpm

This was really cool to watch. I really like that pressing jig for your runners. It’s nice to have good friends. Good work!

Was the flange from GB the one that is made to run s50 or s54 itb's on a m50?

Why not make your intake manifold out of plastic like the stock one?

e39m5 's channel. he is building a e39 530 with a supercharger, he is installing a s58 intake/cooler in the next episode, it will be interesting to see how that factory intake is adapted to a m54

Curious- since the outer cylinders have such a hard time getting air/ fuel would it be possible to build an intake with 2 or more smaller throttle bodies? 1 for cylinders 1-3 and another for 4-6? I mean I know its possible but would it actually be able to function or would it cause issues with ms42/43 or anything else? Thanks, love the video

i want to see some testing on the new spa turbo m5x intake. the tapered runners look like the newer bmw intakes..... and its cheaper than the poorly designed china options

I love How this is going into a z3 The same thing that Im trying to turbo right now I hope the best for him and remember to reinforce the rear much Love and great welds

Amazing work brother thank you for sharing 🫡

I need one 😊

Thank you very much for sharing your work. One question, can an S54 crankshaft be installed on an M50 and have greater displacement?

is there a reason the injectors are so far up the runners , and don't appear to point at the rear of the valve? (first manifold) p.s. my brothers name is Tyler Davis. I don't claim to know what's better, Just a honest question. maybe you address it further in the video?