Porting, flow testing and rebuilding a BMW M54 head - BMW E83 X3 Rebuild Series: Part 2
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- เผยแพร่เมื่อ 28 ก.ย. 2024
- Thanks for watching my rebuild series on my BMW E83 X3. In this video I go over flow testing and rebuilding my M54 head. I've been gone for a while but I'm back with more videos. Thanks for your patiences and I hope you enjoy. If you have any questions feel free to ask. TR
Just wanted to give you props for the great M54 content! This was the second video of yours I watched after the first installment of M52 54 custom intakes and have to give respect to your craft! Great music by Tommy Guerrero. Please keep them going I'll be watching. Cheers
🙏I really appreciate that. Seriously. It’s encouraging. Cheers 🍻 to you too sir.
Awesome job, very impressed with the level of detail on your build. Getting ready to build a race M54 myself.
Curious of your opinion of CFM vs. velocity. Considering BMW has seemed to have been trending towards velocity rather then total CFM. BMW went from the big M50 manifold to smaller M52 manifold then to the smaller ports of the M54 head. Do you think you will see a significant drop in midrange torque with your porting?
M54 ports are approximately 30% smaller then M52/S52 ports, HP are lower but torque is stronger.
I’m a road racer, acceleration and torque are critical. Power under the curve…
Love the channel 👍🏻
Great questions and so much to talk about. Thank you. The super flow bench we have at MM is kind of old. It doesn’t have a manometer or any way to read velocity. I wish it did. I’m still working on way to test that or upgrade the flow bench. I think velocity and volume are equally important. I generally look to higher flowing heads for inspiration. Such as the s54 and M50/52. To keep the answer simple I don’t think mid range torque has been killed. Maybe a little lose in the 1000-2500 but tuning is crucial. Active Autowerkes has been incredibly helpful for me.
Side note. I’ve personal always felt bmw neutered the m54 engines. Maybe to separate it more from the s54. The n52, which replaced the m54 has way better ports. Just a thought.
Flow data at the end. 19:30. Pause the video. Sorry for not making it clear.
Wow, definitely subscribed. I have a m52tu that I’m building.
Thanks 🍻
@teddyroweshow5643 can you make a video on how the flow bench works and how it is calculating the flow? I am not a machinist and theses things interest me.
Definately would be interesting to see more on BMW M21D24. I wonder how it sounds and what power it makes after mods in previous videos. I have myself car with this engine, that head doesn't really love stress as far as I know. But back where i live people used to make some solid power with them. Also there is a recipe for M20 strokker with M21 crankshaft.
I appreciate you want more M21 content. Thank you. I've got a couple car projects in the works that have slowed me down but I'll get back to my E28. 🙏 Yes and thanks for your comment. I'm familiar with M20s. I've done a bunch of M20 2.7, 2.8, 2.9, 3.0 and 3.2 engines. Personally, I've moved on from the M20 and I think the only 2 valve engine I care to mess with is the M21.
I dont think you stated what the flow rate was?
At the end. 19:30 Pause the video. Sorry I didn’t make that clear. Thanks for asking.
That must be our humble mechanic :D
I totally forgot. That’s the guy! 🙏 Thanks for watching. 🍻 Cheers.
i have a turbo s52. I also have a turbo m54 zhp on a stand, and a few spare m52tu. I really wanted to get the m.m. rally cams. however im running this s52 on ms43. my question is, do I upgrade to the single vanos rally cam, or do I cut the front of the s52 head, install the dual vanos trays and get a hotter cam for the dual vanos. Im not spinning the s52 over 7k. looking for the best drivability, I own a manual winterbeater m52tu e39 and a winterbeater manual m52 e39, the s52 is in a manual e39it. I do prefer the feel of the dual vanos (or it may be the dbw feels like the car moves more effortless?) idk. I do know my 272 cams in my high power saab were the jam. s52 is fully built and blueprinted, top and bottom. Currently has a gtx3582 gen 2 , I plan to swap with a 66mm turbine 3584 gen 3 psr. ( I also have two 524td's and a e36. )
th-cam.com/users/shortsvMrw61DnJD0
Hello there so nice job ... Beautiful work ... But i want ask you how many mm you remove from 2 sides
Thanks for asking but that’s proprietary. Sorry. A lot of time was spent in making the jig fixtures, finding the right port angle, seat angles, bowl, short side radius and flow testing. If you want me to port your head you can message me on Instagram to work out details. Bimmer.bear
Thanks for watching and asking.
@@teddyroweshow thank you so much nice to see your reply... I will text you soon bro hopefully we see your final port 😊😊🙏