18a ?? anyone know anything about this?
06-01-10, 03:09 PM
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18a ?? anyone know anything about this?
http://www.youtube.com/watch?v=R8x3d...eature=related
i realize its in a hachi.. but still.. i think its pretty cool...
from here
http://www.hachiroku.com.au/blog/?p=3284
"Brendans car has a hybrid 12a tripple rotor called an “18a” It makes just over 300hp at the wheels and is only running to 7500rpm at the moment. The motor will eventually be tuned up to 9000rpm and potentially 400hp area. It will make its competition debut this sunday at the NZ Drift series at Pukekohe.
Should be interesting. Easily at potent as my 4agte 86. Lighter too can’t be too far over 800kgs.
And he did EVERYTHING himself!!!!"
im assuming it would be the same as building a pieced together 20b. it would need an eccentric shaft made (probably cost as much as the car...) manifolds, and tuning...
im hitting up google now for a build thread..
i realize its in a hachi.. but still.. i think its pretty cool...
from here
http://www.hachiroku.com.au/blog/?p=3284
"Brendans car has a hybrid 12a tripple rotor called an “18a” It makes just over 300hp at the wheels and is only running to 7500rpm at the moment. The motor will eventually be tuned up to 9000rpm and potentially 400hp area. It will make its competition debut this sunday at the NZ Drift series at Pukekohe.
Should be interesting. Easily at potent as my 4agte 86. Lighter too can’t be too far over 800kgs.
And he did EVERYTHING himself!!!!"
im assuming it would be the same as building a pieced together 20b. it would need an eccentric shaft made (probably cost as much as the car...) manifolds, and tuning...
im hitting up google now for a build thread..
06-02-10, 10:00 AM
#4
He probably did it from a packaging stand point. 12A based 3 rotor would be way shorter and lighter than a regular 20b. I've always said, we need more displacement versions of rotary's.
I would love Mazda to just start building more rotary's. You could 12A 2 3 & 4 rotors, 13b 2 3 & 4 rotors, and 16X 2 3 & 4 rotors. There's a huge variety of piston engines why not the rotary? Those above 9 rotary engines would dominate the world.
06-02-10, 12:05 PM
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theirs is only around 250 hp it seems..
they also want 9k for it.....
if they would just sell the E shaft it would be cool, or a straight up kit to DIY
i wouldnt mind building one of these motors if i was getting 500ish at 9000 lol
then id have to find something to put it in....
what id really like to know would be the size and weight difference of this "18a" compared to a 20b
06-02-10, 01:09 PM
#7
He probably did it from a packaging stand point. 12A based 3 rotor would be way shorter and lighter than a regular 20b. I've always said, we need more displacement versions of rotary's. I would love Mazda to just start building more rotary's. You could 12A 2 3 & 4 rotors, 13b 2 3 & 4 rotors, and 16X 2 3 & 4 rotors. There's a huge variety of piston engines why not the rotary? Those above 9 rotary engines would dominate the world.
I would love Mazda to just start building more rotary's. You could 12A 2 3 & 4 rotors, 13b 2 3 & 4 rotors, and 16X 2 3 & 4 rotors. There's a huge variety of piston engines why not the rotary? Those above 9 rotary engines would dominate the world.Trending Topics
06-02-10, 01:26 PM
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06-04-10, 05:19 AM
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Engine specs:
http://www.trademe.co.nz/Trade-Me-Mo...-266599928.htm
http://www.trademe.co.nz/Trade-Me-Mo...-266599928.htm
06-11-10, 05:42 PM
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Engine specs:
http://www.trademe.co.nz/Trade-Me-Mo...-266599928.htm
http://www.trademe.co.nz/Trade-Me-Mo...-266599928.htm
it has to be the sickest engine.
it covers everything cool light, fast, rev happy, N/A, and.. powerful.
makes me wonder what na 2 rotor motrs are really capable of.
400 hp is ~133 hp per rotor so... 2 rotors ~266hp at 7800 rpm...
500 hp is ~166 hp per rotor so... 2 rotors ~332hp at 9000 rpm...
^^(guys estimated 9000 rpm hp mark)
lol, stupid simple math i know it isnt perfect.
but with that math a 4 rotor would get 533 hp at 7800 and 666 hp at 9k lol
07-28-10, 01:38 AM
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The problems I have run across in thinking about the 18a are; mounting an additional stationary gear in the extra center plate, would the rotors need to be phased 120 degrees from each other? Or could they just continue to be 180 degrees, of course the oil pan but simple fix, and of course timing but you would go with a crank fire setup
07-28-10, 09:27 AM
#14
^ Rotor phasing is as follows:
2 rotor= 180
3 rotor= 120
4 rotor = 90
That one company in New Zealand already does the gear mods for the 4 rotor crank package. It would be no different for a 12a based set-up as all the side plates are virtualy identicle. The only thing left is the shorter e-shaft and counter weights to make whats needed to build your own 12a based 3 rotor short block.
2 rotor= 180
3 rotor= 120
4 rotor = 90
That one company in New Zealand already does the gear mods for the 4 rotor crank package. It would be no different for a 12a based set-up as all the side plates are virtualy identicle. The only thing left is the shorter e-shaft and counter weights to make whats needed to build your own 12a based 3 rotor short block.
07-29-10, 02:43 AM
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That's kinda what I thought. Since a stock 2 rotor e shaft is 180 out. Why can't the Front and rear rotor be 180 from the center rotor. I would think it would be a balance issue at that point.
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