Lysholm supercharger

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Shaffer325ix
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Lysholm supercharger

Postby Shaffer325ix » Tue Nov 11, 2014 10:38 pm

So, I have this Mazda millenia. I don't feel like outing anymore money into it, can't seem to unload.it in its present state, so I'm going to scrap it.. I'm going to remove the really expensive parts off it that I have replaced to sell.

However it has a Lysholm supercharger on it. It looks like a twin screw but I guess it's considered something different. It's suppose to be very efficient and also really expensive. It's made by IHI who also makes the same style for Mercedes..

Do you think this is feasible? Fabrication aside, this is suppose to run 18-20 psi max (only 14psi in the Milly) but it was mostly used to make up for the lack of intake charge.. This engine is really neat, look up "Miller Cycle" on the interwebs if you want to read some crazy silly shit. The idea is fantastic, the car has a lot of ass to put down from idle all the way up.. the issue is keeping it running, which.require parts... Parts.that.are hard to get sometimes.

I do not want to turn this engine into a miller cycle, that would require a special ground cam. I'm just tossing around the idea of using the SC.
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Re: Lysholm supercharger

Postby 87e30 » Tue Nov 11, 2014 10:50 pm

What exactly are you thinking about doing? Installing that supercharger on an m20? I know that engine/SC combo. I sold one of those cars a few years ago for my shop. That engine is NOISY, but not so much in a bad way if you like the sound of a loud supercharger.
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Re: Lysholm supercharger

Postby Yoshi » Wed Nov 12, 2014 12:30 pm

My wife laughs because latin for milenia is "many asses"

Twin screw? Like... designed to live on a V engine? I don't see how that would easily work on an M20. I'd sell it man. Not worth the effort.
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Re: Lysholm supercharger

Postby 87e30 » Wed Nov 12, 2014 1:52 pm

Twin screw many asses?!? Sounds like quite the party! :-D
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Re: Lysholm supercharger

Postby M20_fever » Wed Nov 12, 2014 3:12 pm

It's designed for a 2.3L DOHC engine, right? It would require a custom intake manifold, custom pulley or serp setup, and a stand alone EMS so your not looking at an easy or cheap install. If your going through all that work and really want a SC you'd be better off selling that unit and buying a centrifugal charger or a roots unit that will fit in the compressor curve better for a 2.5L 12 valve engine.
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Re: Lysholm supercharger

Postby Shaffer325ix » Wed Nov 12, 2014 6:42 pm

Oh boy M20, now you're getting technical.. Selling it probably would be the best option. I was just tossing it around because I have the unit and the two intercoolers.
I'm not looking for easy because I love doing fab work when I can.. Now, fitting the compressor curve to the engine is something I didn't think about. Honestly as much as I have been around and played with turbo/supercharged vehicles, I get confused when looking at a compressor map... As long as I'm being honest.. I don't think I would know how to match an engine to the correct compressor without trial and error and a dyno. That being said, I do understand everything that's happening on the electronic side of it..
I know people have used these in other applications like Rx7's and because it's 24"s long it might "look" like it's suppose to be there next to the straight 6. It is more efficient than the EatonM90 which is a roots type.

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This is the "ass" end of it. Looks pretty simple, yeah? Although routing it to the TB might pose a problem.
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Re: Lysholm supercharger

Postby M20_fever » Wed Nov 12, 2014 6:48 pm

If you're up for the challenge I say go for it, after finding the compressor map and posting it here so we can see if it will even be worth the time and money spent. I can say as far as I know you would be the first to use a Lysholm charger on an M20, and your correct, they are more efficient than a roots type. The benefit of the roots type is price, availability, and information on using them in our applications. You will have the same issue I am having with the TB being in the back, but its nothing that can't be solved with some good fab work.
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Re: Lysholm supercharger

Postby Shaffer325ix » Wed Nov 12, 2014 6:52 pm

Ohh... looky here.

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Re: Lysholm supercharger

Postby Shaffer325ix » Wed Nov 12, 2014 7:07 pm

I don't think the "supply" to the engine would be a problem because the 2.3L is actually a 3.0, but because of this Image or Imagewhich is the only reason why the supercharger is used. To make up for the lack of volume in the combustion chamber, due to the intake valve remaining open on the "up stroke". Which in turn gives the piston more inertia or "ass" behind it and takes resistance off the rotating assembly which allows for better gas mileage... so to speak... I might be explaining that wrong.

In this picture you can see how the intake comes into the TB and directly in the the SC, gets compressed, exits out to the intercoolers, then back in and pushed to the cylinders.

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Re: Lysholm supercharger

Postby Shaffer325ix » Wed Nov 12, 2014 7:45 pm

I just emailed Lysholm asking for some info.. lets see what they say.
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Re: Lysholm supercharger

Postby M20_fever » Wed Nov 12, 2014 8:28 pm

That has to be the dumbest placement I've ever seen. Why the hell would you mount the charger ON TOP of the exhaust manifold? And damn that thing is loud, lol.
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Re: Lysholm supercharger

Postby 87e30 » Wed Nov 12, 2014 9:11 pm

I did say it was loud, didn't I? :-P
Schwarz 5-speed 87 325is (newest project)
Arktisblau 5-speed 86 325e (current DD)
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