Looks insane as always.

Just some food for thought though, are you sure the aluminium intermediate "iron" you've drawn in cad there is strong enough?

Remember, rotor housings want to do this, especially in high hp high boost applications:



https://lh3.googleusercontent.com/-w...5/deformed.jpg



The rotor housings need the strenght of the intermediate and frond and rear plates, or else they would seriously warp.

This is also what causes the rear iron to break on older rear iron's.

Your design doesn't look very strong in this area. The steel inserts don't add strength, and the aluminium part has a lot of cutouts, so that's not very strong either.

Ever thought about making the steel insert a bit larger?, like just a little bit smaller than the outer o-ring groove?

That way you can drill the holes for the engine bolts and dowels in the steel insert, so the steel inserts add strength to the engine.

As always YOU do the insane calculations https://www.nopistons.com/forums/pub...IR#>/smile.png

I will think about it while I'm trying to give my billet rotors some work.



This is the start of my 4 billet-rotors https://www.nopistons.com/forums/pub...IR#>/smile.png

http://i815.photobucket.com/albums/z...d/IMAG0857.jpg

What oil pump style and front cover pattern do you plan on using?

Dry-sump-cover https://www.nopistons.com/forums/pub...IR#>/smile.png

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Rotors is on...

The work for the weekend is over. Everything takes more time then you think. And the fact that I don't work in the CNC-Lathe makes it worse...

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Before cleaning...

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Ohh, was it soo deep?

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Very nice! I can't wait for more updates on the rotors.

In all this CAD, theory-crap and so on, I have done some backgrounds for my motivation https://www.nopistons.com/forums/pub...IR#>/smile.png

http://i815.photobucket.com/albums/z...11920x1200.jpg

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Just because https://www.nopistons.com/forums/pub...IR#>/smile.png

We have done awsome progress this weekend. But we will not show it yet https://www.nopistons.com/forums/pub...IR#>/smile.png

Everything goes according to plan, but everything has its time:)

Meanwhile, the graphic card goes hot in the computer.

Is updating my drawings on the chassis and so on. And when inspiration is short, so make it a nice rendering, so you will be happy again:)



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A good start on a looong weekend...

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3.45min

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9.55min

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+24min

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If this doesn't work, I think this would be a good bookrest.. https://www.nopistons.com/forums/pub...IR#>/smile.png

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Now I've cleaned up after me and takes weekend.

This took a lot longer than I guessed. Then it's always so well with the first, but had probably hoped for smoother processing:)

Has anyway tried to run a finishing the outline today. Is not quite satisfied, however, it does not matter for the function. Has left 0.5mm for further testing:)

To be continued in the Christmas Holidays!

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Great job! I can't wait to see this thing run!

What are you going to do for the apex seal slots to ensure they don't wear prematurely?

Also, how are you going to seal the side plates to the body of the rotor for the oil?

You'll see when I come there. Difficult to explain, but I have a plan https://www.nopistons.com/forums/pub...IR#>/smile.png

Tried a little bit smaller step this face. What do you think about the comp-ratio in the bottom?

Good or silly...?

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Informative!

amazing stuff your doing here , something i could only dream of acomplishing.

Any idea of design flaws Mazda may have made and/or you might try to improve or fix? Just wondering if there will be any type of directional finish on the rotors themselves? WIll you be making your own rotor housings? Rock on!

The only bad thing with older Mazda Rotors are the tolerance between them.There could be big differens in comp-ratio for example. Then they started to CNC-mill the face, and it got better. The weight should be around 3700grams on this one, and that a little better than 4000-4200gram stock.

No, Rotorhousings feels like a difficult part to make. Maybe center-plate though.

Now finally the production has begun for real ... I had never guessed that it would be so much preparation work on these. Do they look simple, but have been scratching my head once or three times ...

On top of all this, a revision of the CAM program take 5-15minutes of the heaviest pieces.

3st roughing 3D pockets from one direction is about 1500kb large program. Times the third Times two ...

Milling time, we will not even go into. It takes time:)

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good pic

sick

What are your plans for doing the rotor side plates?

What are your plans for doing the rotor side plates?

What are your plans for doing the rotor side plates?

How do you mean? How they will look like or so?



There will be sideplates i aluminium.