So you can buy a 26B eccentric shaft for around 8K and you can get a 20B shaft for around 2.5K so if someone was crazy and had a wild hair up their *** to make a 26B shaft in theory couldn't they just IDK take (2) 13B shafts bolt them together and use that as a basis for a 26B shaft. I've seen it done with V8's. And, while rotaries are different in theory couldn't this work? Provided you didn't rev the hell out of the engine or run a crazy amount of boost. I'm not crazy enough to try it, but I figured it couldn't hurt to ask. There are no stupid questions right?

 

yes it is possible:

http://members.tripod.com/~grannys/4rotor.html

here is how they coupled the 13b shafts in the middle:



how much HP it will hold, or how high it will rev.. Im not sure..

would you like to find out for me?

 

so it would require some CNC work. and I guess some welding and a way to smooth back out the welding. Looks like a machine shop could do this pretty inexpensively. as far as how much stress it would take.... Most of the force applied to the e-shaft would be rotational torque. right ????, and then the pressure applied when you engaged the clutch. if I'm not mistaken. Otherwise it should be pretty smooth.

 

or mass quantities of super glue

 

I'm thinkin JB weld.

 

I've been thinking, and I'm concerned that the way the two e-shafts are connected would be a little weak under stress with the semi-circular "gear cuts". Wouldn't something more inline with a spur gear be more tolerant to the high stress that would be placed on that section of the joined shaft? That would remove any need for Jb weld or the like, and also increase the structural integrity I would think. As far as drilling and tapping the front e-shaft. That would have to be very precise, since even a slight deviation from center would throw off the balance and eventually vibrate the engine to death. Another benefit of the spur gear would be that if you did bolt them up and the firing order was off slightly you could just separate the shafts and adjust it. Granted there wouldn't be much room for error when you had it machined because any screw ups and you've ruined a perfectly good shaft. The last issue I thought about would be the primary bolt connecting the two shafts. Fortunately you could use that to hold the crank pulley on since it would be the standard size, although I would use some loc-tight just to make sure things held together. Anyway, I'm pretty sure that doing it that way would allow you to have a strong and reliable homemade two piece 26B eccentric shaft that will withstand a reasonable amount of horse power and moderate street use. But of course this is all just a theory because who would need a NA P-port 26B. But it's still interesting and I"m sure it will teach someone something.

Does anyone know the firing order for the 26B, I'm now seriously considering seeing if this could work. I'll go pick up some burned e-shafts this week. If it does not only would it save some people money, but it could also put a lot more 4 rotor cars on the street or track depending on how you would want to use it.