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Torquemonster
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Joined: 26 Apr 2004
Posts: 208
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 Posted: Mon Nov 20, 2006 1:12 am Post subject: Quad Rotary |
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Recently someone was talking about a multiple rotary engine for power.
Found this - the sound you can hear dominating this video is the Mazda that won LeMans. Sounds a lot better than the twin rotor engines!
Thought some here might enjoy hearing it
http://videos.streetfire.net/video/459c2110-c466-4c36-bc02-985c016d974a.htm |
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SWR
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Joined: 29 Jan 2006
Posts: 1778
Location: Norway
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ROGUE GTS
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Joined: 15 Dec 2005
Posts: 130
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| Posted: Mon Nov 20, 2006 5:28 am Post subject: |
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Wow thats CRAAAAAZY  It idles like a fuel car and revs like a 2 stroke dirtbike. The sound when he revs it is very much like a nitro RC car... on crack. 
Were they fast/powerful?
Hey Barry. . . How about a Diesel ala audi R10  |
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Eric68
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Joined: 01 Apr 2006
Posts: 377
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| Posted: Mon Nov 20, 2006 10:26 am Post subject: |
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Very cool. 
It does have a major lope at idle, I thought it sounded like it was on a two step when he raised the RPM just off-idle -- almost sounded like it was missing, but when free-reving response was immediate and it was "all there" . . . cool.
Thanks for posting
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68 Camaro 427" E85 powered small block, 10.04 @ 132 mph in street trim, 1.352 sixty foot. |
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MadBill
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Joined: 15 Nov 2005
Posts: 3704
Location: Ontario Canada
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| Posted: Mon Nov 20, 2006 11:09 am Post subject: |
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After being pitted beside one at the track for a few hours, it doesn't sound nearly so cool! Not only that, the drivers must all carry Harley rider DNA; they're constantly blipping the gas. Last big race at Mosport we loaded everything back into the trailer first chance we got and moved as far away as we could from a wild-motored RX7 ... 
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"It is not necessary to build a swimming pool to determine that a bowling ball won't float." .....Zora Arkus-Duntov |
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Torquemonster
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Joined: 26 Apr 2004
Posts: 208
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| Posted: Mon Nov 20, 2006 1:25 pm Post subject: |
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| ROGUE GTS wrote: | Wow thats CRAAAAAZY It idles like a fuel car and revs like a 2 stroke dirtbike. The sound when he revs it is very much like a nitro RC car... on crack.
Were they fast/powerful?
Hey Barry. . . How about a Diesel ala audi R10 |
cc = 4 x 654
700hp at a low 8000rpm (low for a rotory) - naturally aspirated
The sound under load is a lot less tiny and annoying - I also have a wav file of it racing under load and it sounds even better isolated without the single seater near it - but can't upload it here.
RogueGTS - ANY ICE can be turned into a diesel thanks to Professor Poring (ex Naval Academy) of Sonex Research. He took me thru his lab in Annapolis - very interesting! Via a unique piston design - even a low compression (even well under 8:1) will fire without spark. He replaces the sparkplugs with a direct injector aimed strategically. The engine will run on gas, diesel, JP5 etc. Obvious military application = lightweight JP5 engines.
For road use - heaps of applications as they will rpm like no diesel can!!! They've seen 8000rpm from a Subaru boxer and were looking for 400hp from the turbocharged 4. Not bad with no spark. They need a lot more air however than a conventional engine.
I haven't forgotten them
 that's for some future play money |
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Noob
Member
Joined: 21 Nov 2006
Posts: 183
Location: Jacksonville,FL
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| Posted: Tue Nov 21, 2006 2:21 pm Post subject: |
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after racing against that 787 car and other RX7's.. I'm convinced that the amount of HP produced is exponentially related to the amount of time working/porting/rebuilding that engine goes through.. very few rotarys can make 24 hours endurance racing and competitive power.
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Red Lion Racing
Mech Engineer
north florida engine/suspension tuner
Fabrication |
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timdog
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Joined: 22 Nov 2005
Posts: 273
Location: UK
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Torquemonster
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Joined: 26 Apr 2004
Posts: 208
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| Posted: Tue Nov 21, 2006 7:14 pm Post subject: |
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hey - that's my home track! lol about 90 minutes away
Noob - yes - everything I've heard tells me the same thing - not my scene - but I appreciate the efforts that go into them |
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