RX8 E-shaft vs 13B-RE/REW shaft

		Rotary Car Club > Tech Discussion > RX-7 3rd Gen Specific (1993-2002)
RX8 E-shaft vs 13B-RE/REW shaft

RX-7 3rd Gen Specific (1993-2002) RX-7 1993-2002 Discussion including performance modifications and Technical Support Sections.

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06-13-2009, 02:50 PM

#32

vex

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Quote:

Originally Posted by joff

Where'd this figure come from and would you mind explaining?

I assume these are the forces on the stationary gear that would otherwise cause it to twist? How is this relevant to E-shaft loading? I'm just a genuinely curious lurker -- have no credentials for an opinion, and no data points to offer so feel free to ignore...

It's from an ASE article regarding the 13B engine from an FD. Loads exerted on the stationary gear play a very large role in an asymmetric loading of the eccentric shaft. Since the loading appears to be greater than what the eccentric shaft sees on the bearing load. This means that a majority of the deforming load applied to the stationary gear should see abnormal wear when you have a case similar to Glenns. This is assuming that an abnormal ignition event caused the initial deformation of the shaft.

The actual title of paper is "Recent Technology Development of High-Powered Rotary Engine at Mazda" by Takumi Muroki.

It also has an interesting portion about timing and the propogation of the flame front depending on the location of ignition (10* EW TDC, 20* EW TDC, 30* EW TDC).

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