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Ranger50
Ranger50 SuperDork
6/29/12 8:37 a.m.

Out comes a BILLET motor.

Alan Cesar
Alan Cesar Associate Editor
6/29/12 8:46 a.m.

I know I've already used this one today, but...

Oh holy crap.

Javelin
Javelin GRM+ Memberand UltimaDork
6/29/12 8:49 a.m.

Conquest351
Conquest351 Dork
6/29/12 9:15 a.m.

So, when's the 4-rotor version coming out? LOL

kreb
kreb GRM+ Memberand SuperDork
6/29/12 9:15 a.m.

Believe it or not, a kid at my HIGH SCHOOL made an operating wankel as his senior machine shop project. The rest of us were making such sophisticated pieces as plumb bobs, so we were pretty well in awe.

This one is far slicker though. Sweet!

DaveEstey
DaveEstey Dork
6/29/12 9:17 a.m.

I just went from 6 to midnight...

N Sperlo
N Sperlo PowerDork
6/29/12 9:18 a.m.

I know I've already used this one today, but...

I'm going to have to remain seated for the rest of the day.

Jay_W
Jay_W Dork
6/29/12 9:40 a.m.

uhbuhbuh buhuh buh

ScottRA21
ScottRA21 Reader
6/29/12 9:54 a.m.

Found the web page: No info

http://www.billetinc.com.au/

JamesMcD
JamesMcD Reader
6/29/12 10:29 a.m.

Mazda was not the only modern manufacturer of wankel enignes:

UAV Engines Ltd.

Spinout007
Spinout007 GRM+ Memberand Dork
6/29/12 1:17 p.m.

@#$@#$@#$@#$ That is all....

McTinkerson
McTinkerson New Reader
6/29/12 1:37 p.m.

PPRE in NZ is building a 6 Rotor

The pic's

PPRE's Website

The rotary isn't dead, it's just getting revved up.

scardeal
scardeal Dork
6/29/12 2:26 p.m.

I'm looking forward to a MX-7/8/9...

Hungary Bill
Hungary Bill GRM+ Memberand Reader
6/29/12 2:35 p.m.

My wife is going to see this stain when she does the laundry

Curmudgeon
Curmudgeon MegaDork
6/29/12 2:38 p.m.

Racing Beat has already come out with aluminum replacements for the stock 'irons'. http://www.mazdatrix.com/engpartrace.htm

They can be 'stacked' to build a 20B just like the stockers.

RexSeven
RexSeven SuperDork
6/29/12 4:36 p.m.

And while this is old news, don't forget that Mazdatrix is working on titanium rotors:

http://www.facebook.com/media/set/?set=a.378225772197029.94061.219671674719107&type=3

MrJoshua
MrJoshua PowerDork
6/29/12 5:11 p.m.

Man you guys are making me want to dabble in rotary engines again. Anyone know the RPM range they are dreaming of with those titanium rotors?

mad_machine
mad_machine GRM+ Memberand MegaDork
6/29/12 6:57 p.m.

titanium is a weird metal. Not only is it strong and light.. but it more flexible than steel and aluminum

JamesMcD
JamesMcD Reader
6/29/12 8:48 p.m.

It also has galling issues. How that works with apex and side seals sliding in and out I don't know. Coatings?

irish44j
irish44j SuperDork
6/29/12 8:59 p.m.

shiny.

mad_machine
mad_machine GRM+ Memberand MegaDork
6/29/12 9:21 p.m.

you know.. looking at that aluminum "Case" I want to drop a rotory into my fiat

RexSeven
RexSeven SuperDork
6/29/12 10:02 p.m.

WRT Titanium rotors: This is the latest update from Mazdatrix, as of 6/14/2012:

http://www.rx8club.com/showpost.php?p=4286333&postcount=46

Mazdatrix said: "Test engine FINALLY being assembled with our Titanium Rotors! We were "down" for many weeks while we made new rotor gears. The first set were warped in heat treating. These new gears have EDM'd teeth - came out great. Please remember this whole project is VERY experimental. It may be 2 weeks before the engine is on the dyno as we have a crazy week scheduled for next week. We will keep everyone informed as we progress, and have the time to post here."
chuckles
chuckles Reader
7/2/12 8:38 a.m.
mad_machine wrote: titanium is a weird metal. Not only is it strong and light.. but it more flexible than steel and aluminum

And, it loses comparatively little strength when it gets hot.

egoman
egoman New Reader
7/2/12 12:06 p.m.

Titanium like stainless steel mostly has galling problems when it is in contact with itself. If it runs against dissimilar metals I dont see it as being too bad.

Conquest351
Conquest351 Dork
7/2/12 12:19 p.m.
McTinkerson wrote: PPRE in NZ is building a 6 Rotor The pic's PPRE's Website The rotary isn't dead, it's just getting revved up.

Can't wait to hear that thing run!

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