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Old 06-23-2019, 08:06 AM   #1
MisterM52
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Thumbs up Ultimate Supercharger DIY for M44, M42 & M43

Welcome to my thread, this will my ultimate guide to doing a budget DIY supercharger build for all the M4x engines found in the 3 series & Z cars. Starring Red Rudolph the Ti.

About the Setup:

We will be building around 4 different superchargers. Yes, Four.
First the Ogura AMR 500 (~500cc) and SC14 (~1430cc), Next the Eaton M45 (~740cc) and M62 (~1015cc). Those are the rough displacements of the superchargers. All of them can be had for next to nothing, around $150 for the AMR 500 band new, and Around $400 for an SC14. The Eatons go cheaper and abundant, usually you can grab the Eatons for as low as $50 - $100 from yards or parts places all over USA, Canada, UK, NZ, Europe.


Now if you remember from the list,
DASC Used the M62 and GDK IIRC uses the M45.

Enter the HMW M.O.A.B. - The Kit itself will maintain the AC, The Alternator, the Power steering. The SC14 & AMR500 will retain the stock manifold, while the Eaton M45 & M62 will require you take off the top part of the M44 Manifold as well as needing to either raise the hood hinges slightly in the rear or use a low profile hood scoop to clear the hood a little. They are all roots based blowers so all the power is available low end.

DASC Used the M62 and GDK IIRC uses the M45.

Pictures of the concept & prototyping phase...








The Eatons and SC14 also use their separate belt drive while the AMR500 incorporates the oem belt drive. For M42 guys, you must go with the M44 Manifold. The Eaton brackets should also be able to support an smaller M90 (Jaguar or Thunderbird) but support is not official, however in the future if the project takes off well, then we will incorporate the M90 as well as the almighty Eaton M122H GT500 blower on these cars.


Boost will start from around 5 - 8PSI if using either the AMR500 or M45 and upto to 10 - 20PSI with the M62 or SC14. Making these setups good for 200 - 300HP's + if your motor can handle it.


Tuning I am not a tuner, but from my research on these motors, So far majority have been doing it using an old school method of the rising rate fuel pressure regulator, thats for most people running upto 6-8PSI. However a proper tune has always given so much more. The M42 will likely have to be done by Ostrich II type piggyback, While the M44 will need a bench flash, its easy enough to build a bench flasher but the tune from a tuner and data logging is going to be the key. I have spoken with Barry from Midnight Tuning a while ago, and he will be whom I recommend for the tune.


A little bit about this project, after returning from Germany this year, I bought this Red 318 Ti from a local club member in NZ as a daily. I got it at an offer I couldn't resist. On my way back which was a 3hr drive, I was grinning the entire way, just the way this car felt, it has a character of its own, I couldn't help but fall in love with the car.




I have been supercharging BMW's for a good part of a decade now. And have my setups have gone around the world from races to shows. For those of you who have seen our work they know it to been mostly for the bigger engines as the M5x (6 cylinder cars). So I thought its time for a 4 cylinder project. I have first hand overseen this V4 project and worked on it with nearly a hundred man hours on the final prototypes. After I am done here, the 3D & CAD modeling team will take over, once they are done it will enter semi production stage in the factory. I estimate another 3 months before these are publicly released.

A teaser of the crazy things we do. Here is the HMW M122H KC.




A quick video to go a bit more into explaining the prototyping and all. (the youtube button is not working it seems I will just post the video url)
https://youtube.com/watch?v=4Uef2A8329Y

I know DASC & GDK have both offered SC kits at a stage for these cars, those used a custom manifold. The HMW kit will be the largest and most comprehensive yet. Now you are no longer limited by one type or supercharger, you have the option of using a much larger SC than anybody else, you can even inter cool it! and best part, the kit will be priced around a grand or so, that's including the custom sc manifolds, belt, idler pulley's all powder coated & shipped anywhere in the world when it hits the market.

Now we finally have the ability to bolt something on and make far more power than the typical 6 cylinder swap while being affordable for you all.

I want this to be a community project, when the time comes I will pick few from here interested to try the setups. Till then this is the thread I will be posting updates and progress in. So drop a line, some encouraging words, perhaps some feedback, give us a cheer, tell us what you think.


Best Regards,
- Hyde

Last edited by MisterM52; 07-01-2019 at 09:17 AM.
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Old 06-23-2019, 04:59 PM   #2
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Following! Very excited. Cash in hand, too.

Couple questions: how are these blowers compared to the one used in the DASC (flow).

Have you reached out to Nick G./TT about tuning? He also several tuning options for the DASC; could this work also?

Last edited by niceguyeddie; 06-23-2019 at 05:05 PM.
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Old 06-23-2019, 05:17 PM   #3
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Following this too.
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Old 06-23-2019, 10:46 PM   #4
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Quote:
Originally Posted by niceguyeddie View Post
Following! Very excited. Cash in hand, too.

Couple questions: how are these blowers compared to the one used in the DASC (flow).

Have you reached out to Nick G./TT about tuning? He also several tuning options for the DASC; could this work also?
Oh DASC used the Eaton M62 Supercharger, we support the M62. GDK UK was using the M45. We support that too.

In addition the SC14 is nearly 500cc larger than the M62 Eaton, more flow. We use those on the bigger 6 cylinder cars with nice results.

Haven't reached out to them, but maybe in the future.

Quote:
Originally Posted by OllieNZ View Post
Following this too.

Definitely! Thank you!
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Old 06-24-2019, 04:39 PM   #5
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This is looking great!


I only wish this was available ~2.5 years ago when I swapped in the m52! Maybe I should swap back.
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Old 06-24-2019, 08:27 PM   #6
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Which of those superchargers will support the 300hp? Would that setup need intercooling, and where do the stock injectors max out?
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Old 06-25-2019, 03:21 AM   #7
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Quote:
Originally Posted by anassa View Post
This is looking great!


I only wish this was available ~2.5 years ago when I swapped in the m52! Maybe I should swap back.
Well, maybe its time for more power, you could try the SC14 to make a small bump, or even an Eaton M62. or the M122H to blow the motor up. We have a lot of setups for the M50/M52/M54 actually. Will throw in a discount down the line if you ever want that route.

https://www.youtube.com/watch?v=O9nHhp6po_U
https://www.youtube.com/watch?v=-v7DPK3CLHE
https://www.youtube.com/watch?v=bcriTQha1eY



Quote:
Originally Posted by Beemernut View Post
Which of those superchargers will support the 300hp? Would that setup need intercooling, and where do the stock injectors max out?
300HP at the crank or rear wheels? if crank then thats no problem with the SC14. I would definitely say some larger injectors like #30Ibs or even #42Ibs will be something for anyone aiming to hit 300. Thats what we do for the 6 cylinders. The kits will all support air to air intercooling as well. Most we have seen from it was 360rwhp on a S52B32 motor in the american endurance races, our team won 3rd place there.

https://www.youtube.com/watch?v=aY6NWl8Jdvo&t

On a small 1.9L M44 though if you can build it then you can really seek serious power. I intend to try doing a M122H (GT500) setup on it as well with help of my Chief Engineer, Keith in NJ. If we can manage a M122H on the M44 then it will push 30 PSI + and put you in 400+ HP. But that setup wont happen till these are done. Here is what the 6 Cylinder M122H looks like



Some progress today, some more trials with the concept then its almost done.
Just wait, we will do something great for the Ti community.
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Last edited by MisterM52; 06-25-2019 at 10:28 AM.
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Old 06-26-2019, 03:06 PM   #8
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Just educated myself a bit on the SC14. Pretty excited to see where this goes. The clutch that lets you switch it on and off is especially appealing to me. 300 crank would be terrific! Hopefully that's attainable on an M44 with just head studs? Edit & re edit: reread original post

Last edited by Beemernut; 06-26-2019 at 03:55 PM. Reason: answered questions
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Old 06-26-2019, 03:58 PM   #9
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Quote:
Originally Posted by Beemernut View Post
Hopefully that's attainable on an M44 with just head studs? And what is needed for tuning?
Unfortunately for us guys with an eye on FI the M44 has been engineered for N/A performance and can't really handle much boost stock. From the research I've done so far the consensus seems to be 6-7 psi max, much more can lead to various failures pretty rapidly. The M42 is slightly better off as it has a forged crank but again to run more boost you'll still need to lower compression initially and then build the engine from there.

If you've never come across Metric Mechanic before, I'd highly recommend checking these guys out. They really know how to build an M42/44 and are pretty open with what they do

http://metricmechanic.com/wp-content...ne-Booklet.pdf
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Old 06-26-2019, 07:54 PM   #10
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Awesome thread!
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Old 06-26-2019, 10:44 PM   #11
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If you ever need a test monkey M42 in NJ, im your guy hoping to save a little cash and play with this kit. As always it looks great on that little motor haha. Im really enjoying watching this progress and I appreciate your support for the 4 cylinder crowd.


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Old 06-27-2019, 04:36 AM   #12
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Quote:
Originally Posted by MisterM52 View Post
Well, maybe its time for more power, you could try the SC14 to make a small bump, or even an Eaton M62. or the M122H to blow the motor up. We have a lot of setups for the M50/M52/M54 actually. Will throw in a discount down the line if you ever want that route.


You have my attention. I will be sending you a PM with some questions.

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Old 06-27-2019, 04:41 AM   #13
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������all money in
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Old 06-27-2019, 04:42 AM   #14
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I'm super super stoked about this I can't wait to get in I would love to be picked from the bunch I definitely want to be the guinea pig ear
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Old 06-27-2019, 05:43 PM   #15
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Just looking at the list of SC's, will you be doing one for the M90?
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