Mazdatrix Titanium Rotors

Roen · 03-07-2012, 10:40 AM

So we have another player in the lightweight rotor game. If some of you remember, East Coast Racing came out with Billet rotors a little while ago. Now Mazdatrix has announced its Titanium rotors that they hope to get under 6 lbs.

Thoughts?

t_g_farrell · 03-07-2012, 11:31 AM

Where did you see/hear this? I can't find any mention on their web site.

Roen · 03-07-2012, 12:20 PM

http://www.rx8club.com/showthread.php?t=230169

RETed · 03-07-2012, 02:25 PM

Titanium is not a good material if there is any chance of metal-to-metal contact.
Titanium galls like a mofo.
Add to the fact now you've got another different metal with differing (heat) expansion rate, and you've got one messy engine unless you calculate all the clearances correctly.
I bet it's almost necessary to run those under apex seal oil jets that Hurley Engineering was touting a few years back just to keep the apex seals from seizing in their slots...

-Ted

RICE RACING · 03-07-2012, 03:19 PM

Yep what he said,

I made my own Ti seals in 1994, they were fucked

There is a reason it is used as a rubbing block on the bottom of F1 cars LOL. MASSIVE SPARKS.

If you ever tried to grind Ti on abrasive belts, good luck you will see what we are both saying

to cut it is fine (machines great!) but "rubbing" its a disaster as natural as a homo having sex.

The Ti will need some sort of coating or insert on all the seal slots to work.

rxspeed7 · 03-07-2012, 05:03 PM

not worth a bajillion dollars to save a couple pounds nor will mztrix make it usefull and functional!! All they will accomplish is making a cool sparkler!!

sa22c · 03-08-2012, 09:57 AM

My take is that they might be of interest in sponsored rotary drag racing.

I'm yet to see evidence of any one in the world undertaking a controlled scientific test to see what the real limit of the factory rotor engine is when its correctly running. I have no doubt 1MW could be generated for a minutes at a time using just about any factory twin rotor if all the conditions were controlled.

Plant to supply the boost on a dial in a test cell
Inductrial sized Coolant and Oil Coolers
Controlled test fuel
Correct mixture and ignition calibration

speedjunkie · 03-08-2012, 10:13 AM

I saw this on facebook. Didn't even think about how it would work with the other metals as far as expansion and all that. Not that I was going to get them anyway haha.

EJayCe996 · 03-08-2012, 07:23 PM

There you go

http://www.ewp.rpi.edu/hartford/~les...unterfaces.pdf

Raksj04 · 03-09-2012, 10:57 AM

Quote:

Originally Posted by EJayCe996

There you go

http://www.ewp.rpi.edu/hartford/~les...unterfaces.pdf

Tech paper FTW!

My5ABaby · 03-09-2012, 01:53 PM

Why not just coat the titanium rotors with ceramics?

EJayCe996 · 03-09-2012, 02:31 PM

Quote:

Originally Posted by My5ABaby

Why not just coat the titanium rotors with ceramics?

Some sort of dry film coating is basically what most of the documents related to titanium from the site in my last post suggests. You have to stop the titanium from transferring a layer onto the other metal it has friction with.

reddozen · 03-13-2012, 11:07 AM

Quote:

Originally Posted by EJayCe996

Some sort of dry film coating is basically what most of the documents related to titanium from the site in my last post suggests. You have to stop the titanium from transferring a layer onto the other metal it has friction with.

The rotor shouldn't be making contact with anything other than the misc seals (apex, side, corner, etc). If it is making contact with the epitrochoid, then you have other very serious problems... I do think they will be too light for street use. I'm curious to see what the dyno says and what the RPM response rate looks like both on accel and decel.

My5ABaby · 03-13-2012, 12:37 PM

Quote:

Originally Posted by reddozen

The rotor shouldn't be making contact with anything other than the misc seals (apex, side, corner, etc). If it is making contact with the epitrochoid, then you have other very serious problems... I do think they will be too light for street use. I'm curious to see what the dyno says and what the RPM response rate looks like both on accel and decel.

I wonder how light they'll actually seem in regards to drivability. People go from a stock flywheel (17lbs?) to one under 10 and are fine with it. I'm sure due to differences in inertia, center of mass, and other stuff I don't really understand it's not a direct comparison, but the question remains the same: How much will shaving 5 lbs off the engine's rotating mass affect drivability?

FC Zach · 03-13-2012, 10:15 PM

Quote:

Originally Posted by reddozen

The rotor shouldn't be making contact with anything other than the misc seals (apex, side, corner, etc). If it is making contact with the epitrochoid, then you have other very serious problems...

I believe it's more of a concern with the rotor touching the irons, not the epitrochoid. If all is clearanced, shouldn't be a problem but if not that is when galling starts.

03-07-2012, 10:40 AM	#1
Roen Evil Club Mod Join Date: Feb 2008 iTrader: (0) Posts: 183 Rep Power: 17	Mazdatrix Titanium Rotors So we have another player in the lightweight rotor game. If some of you remember, East Coast Racing came out with Billet rotors a little while ago. Now Mazdatrix has announced its Titanium rotors that they hope to get under 6 lbs. Thoughts? __________________ Ex-King of the Loop / Captain Guardrail / Master Crab Rapist / Evil Crop Dusting Mod

03-07-2012, 11:31 AM	#2
t_g_farrell Waffles - hmmm good Join Date: Aug 2008 Location: Huntersville, NC iTrader: (0) Posts: 757 Rep Power: 0	Where did you see/hear this? I can't find any mention on their web site. __________________ 1980 GS stockport, Fat Nikki, RB Dual Facetfuel pumps, Holley regulator, RB Street port exhaust, 2GDFIS, MR2 MK I electric fans, 2G strut bar, relayed fans, lights and fuel pump, LEDs Project Fat Nikki Budget 12A rebuild Video setup < $30.00

03-07-2012, 12:20 PM	#3
Roen Evil Club Mod Join Date: Feb 2008 iTrader: (0) Posts: 183 Rep Power: 17	http://www.rx8club.com/showthread.php?t=230169 __________________ Ex-King of the Loop / Captain Guardrail / Master Crab Rapist / Evil Crop Dusting Mod

03-07-2012, 03:19 PM	#5
RICE RACING Don Mega Join Date: Dec 2008 Location: Utopia iTrader: (0) Posts: 1,688 Rep Power: 17	Yep what he said, I made my own Ti seals in 1994, they were fucked There is a reason it is used as a rubbing block on the bottom of F1 cars LOL. MASSIVE SPARKS. If you ever tried to grind Ti on abrasive belts, good luck you will see what we are both saying to cut it is fine (machines great!) but "rubbing" its a disaster as natural as a homo having sex. The Ti will need some sort of coating or insert on all the seal slots to work. __________________ www.riceracing.com.au Worlds best Apex Seals Coil on Plug Water Injection ECU Calibration

03-08-2012, 07:23 PM	#9
EJayCe996 PPP-P-P-P-POWER! Join Date: Feb 2008 Location: North GP, TX iTrader: (0) Posts: 283 Rep Power: 17	There you go http://www.ewp.rpi.edu/hartford/~les...unterfaces.pdf __________________ 1. Walk through a row of 22", or larger, rims 2. Say you love dubstep 3. ????? 4. PROFIT! Axiomatic: Total cacology.

03-08-2012, 09:57 AM	#7
sa22c The Newbie Join Date: Jan 2012 iTrader: (0) Posts: 21 Rep Power: 0	My take is that they might be of interest in sponsored rotary drag racing. I'm yet to see evidence of any one in the world undertaking a controlled scientific test to see what the real limit of the factory rotor engine is when its correctly running. I have no doubt 1MW could be generated for a minutes at a time using just about any factory twin rotor if all the conditions were controlled. Plant to supply the boost on a dial in a test cell Inductrial sized Coolant and Oil Coolers Controlled test fuel Correct mixture and ignition calibration

03-08-2012, 10:13 AM	#8
speedjunkie RCC Loves Me Not You Join Date: Mar 2008 Location: Colorado Springs, CO iTrader: (1) Posts: 2,089 Rep Power: 19	I saw this on facebook. Didn't even think about how it would work with the other metals as far as expansion and all that. Not that I was going to get them anyway haha.

03-09-2012, 01:53 PM	#11
My5ABaby Sigh..... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (6) Posts: 2,377 Rep Power: 19	Why not just coat the titanium rotors with ceramics? __________________ 1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present." Last edited by My5ABaby; 03-09-2012 at 01:55 PM..