Rotrex supercharger mechansim

[stene12345]

@Marshmallowrex hu?

[mjdurack]

Does this help

youtube.com/watch?v=hgl7IBmUj8­o

[MugenDB2]

What makes this kit better than the kraftwerks, and SOS kit for the S2000 help plz thx

[polog450]

how much does it cost??

[richardarichter123]

cool supercharer

[riru69]

nice, i need one of these for my type r

[Kloopofadown]

Is there any coincidence between the drive ratio and your company name?

[949Racing]

@Kloopofadown

Coincidence. The C15-60 used in the NA Miata kits is 12.67:1

[BlackBeastofAaaaagh]

Perhaps I missed something.

How is this any different from a conventional small centrifugal SC driven by a small pulley? Both would accomplish the same thing: higher RPMs.

[949Racing]

@BlackBeastofAaaaagh

Compound drive ratio of 9.49:1 with this particular Rotrex. Using regular toothed gears generates too much heat, friction and noise. Using smooth roller annulus and planetary drive like Rotrex allows turbo-like impeller speeds in a more compact and cooler running package than any centrifugal or turbo. More impeller speed = greater efficiency. Anyway, search for dyno videos here on YT. The Rotrex drive mechanism works very well.

[BlackBeastofAaaaagh]

@949Racing

Thanks, that makes sense. Let me ask another question:

The boost pressure of a centrifugal SC is theoretically proportional to the square of RPM. I can see how the high drive ratio would help at low engine speeds, but wouldn't the design then spin too fast at higher engine RPMs? Is some sort of variable slip employed? A turbo system can control speed by simply dumping excess exhaust gas.

[MiataChallenge]

@BlackBeastofAaaaagh

You gear the blower for the application by changing pulley sizes.

[jhbonarius]

nice vid! But turning it in de wrong direction ;)

[unknownally]

interesting

[91DAintegraB20]

almost looks like an alternator lol

[schl0tte]

awesome! how much?

[anothernord]

Great video!

[SynapseEngineering]

Nice vid, nice demo, thanks for the good info

[AirWobble]

MMMMM.......would love to put this baby on my 912 aircraft engine!