Look at the renesis pics in these pics.

http://rotarynews.com/view.php?id=150

Notice that the water oring grooves have been moved back into the peripheral housings. This makes lapping of the side housings easier. Also note the race clearanced rotors and the one piece apex seals. The tranny looks like it has a similar bolt pattern as the 13B, will this be "swappable"? Anything else you guys see?

 

wish who ever took the pictures would have taken
some looking in the water jacket area where
the exhaust port used to be.
just wondering if these new housings could be used
for the old 4 port motors if the exhaust port was cut out .
hmmmm
matt

 

Badass!

 

 

 

is it me, or do the side seals on the rotors look thicker?

 

 

Ahhh man, 6 port inatkes?!?!? There goes the Renesis engine as a source for Pro Drag Racing

rxrotary2_7 - The look thicker, but it might be a picture trick.

 

maybe your right. but i do like the apex seals.

 

Note the small reliefs at the ends of the apex seals. I am assuming this helps to keep them from sticking.

 

Scalli,

What reliefs are you talking about?

 

Did you guys notice that the oil seals seem to have given birth to a third ring?

 

Looks to me like it will have a push-type clutch like on a 2nd gen.

B

 

I cropped this pic and turned it so the top of the seal is facing upward to make sure we are looking at this correctly. The end of the seal has a slight recession at a 45 degree angle that goes to the top corner. I would "assume" that this is at both corners and both sides. This creates less surface area at the ends. The only reason I can imagine it being that way would be to help keep it from sticking.
I could be wrong but if there is another reason I am failing to figure it out.

 

There is a seal between the oil control rings and the side seals. This seal helps to insulate the oil rings from the exhaust heat as the rotor passes over the new exhaust ports.

The rotor edges are 45 degrees to help aid airflow as the edge of the rotors passes over the ports.

The apex seals still look to be 2 piece to me. They could just be glued together for visual purposes. I glue mine together when assembling my engines.

The intake and exhaust port edges are shaped very interestingly. I wonder why they aren't smoother?

The '6-port' intake runners in the housings are very differently sized. There are still rotating sleeves in the system but they are no longer actuated by airflow restricting rods. They somehow turn from above.

Those exhaust sleeves look like they can be opened up quite a bit for better flow.

 

Still tring to figure out how that center exhaust port works. Woulden't there be a lot of reversion?

 

One thing that I am wondering about the RENESIS is the fact that mazda said that turbocharging the RENESIS would result in the exhuast temps being Too COLD for the cats to work properly. . . Hummm well sounds odd. Is this because of the side exhuast ports? And I thought I was just starting to get rotarys...Oh well.

 

That's a good point, maybe they did glue it together for display. If that is the case they may have made the corners even shorter. I wish they would have got a better picture.

 

Oh ya. I didn't even notice that. They do look 2 piece.

 

That seems to be the rumour they are spreading. For some reason I really doubt this. It's a fact that the temperatures are lower, but really, they can't be so low to totally neglect turbocharging - especially since the previous design were so extremely hot to start with.
I think it's part of a marketing gimmick to use as an excuse not to turbocharge it. They know all RX-7 owners love turbos. To some people, rotary MEANS turbo.

It can be done. It will be done. Some companies are already making turbo kits for the RX-8.

ps - 3 rotor Renesis instead of turbo ... it's easy to add a turbo but not easy to add the 3rd rotor.

 

I think the emmissions on cold start is the problem. The renesis, I believe should have enough exhaust heat to propel the turbo and heat the cats under normal operating temps. The problem is getting the cats up to proper operating temps. Placing the cat ahead of the turbo would probably solve this problem but then you are decreasing the efficiency of the turbo system.

 

What is the most amount of power that you think that is to be got out of the new renesis without using forced induction.

 

they could always rig up something to bypass the turbos until the cats are warmed up (flashbacks of the thermal pellet)

 

With or without giggle gas?

 

yea with giggle gas hehe i love giggle gas