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Weight of a 12a rotary?
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Does anyone know the weight of a 12a rotary engine? I have heard many times about its small size and light weight, but i cant find what it actually weighs! Any ideas? Thanks

Posted on: 2009/11/2 4:43
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Re: Weight of a 12a rotary?
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Hey mate im not sure of the weight but have a look on www.Ausrotary.com

Posted on: 2009/11/2 4:56
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Re: Weight of a 12a rotary?
No life (a.k.a. DattoMaster)
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i dont know how much they weigh (id be intersted to know aswell), but im guessing about the same as an a12.
gearbox is a different story though, mazda box probably weighs at least double that of the datto 4spd.

my ute was 40kg heavier all up post conversion.

Posted on: 2009/11/2 7:19
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Re: Weight of a 12a rotary?
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between 100kg and 120kg i believe

Posted on: 2009/11/2 8:01
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Re: Weight of a 12a rotary?
No life (a.k.a. DattoMaster)
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Found on a rota site

mazda 12a rotary with transmission, flywheel, clutch, starter, intake, carb, alternator, coil packs, all required wiring, homemade exhaust header, as pulled from a running car (eg, I could have started the motor on the scales if I hooked up 12V) was 375lbs.

Posted on: 2009/11/2 9:49
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Re: Weight of a 12a rotary?
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cool thanks guys thats exactly the kind of info i was after, and 40kg heavier is not much for the power bump if you had one of these. At least if the extra weight was in the tranny its positioned where it can give some good balance

Posted on: 2009/11/2 11:42
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Re: Weight of a 12a rotary?
No life (a.k.a. DattoMaster)
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ca18det eats a 12a for a snack in the conversion, weight and performance dept.

Posted on: 2009/11/3 12:17
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Re: Weight of a 12a rotary?
No life (a.k.a. DattoMaster)
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Are you rotor-ing a 1000 eFunk?

Posted on: 2009/11/3 13:05
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Re: Weight of a 12a rotary?
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well a c18det should eat a standard 12a rotary.. if it was 12a pp or 12a turbo the rotary would smash the ca18det. as for how it handles. depends how you do the convertion.

Posted on: 2009/11/3 22:56
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13b turbo datsun 1200 ute. (WARZ ON)

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Re: Weight of a 12a rotary?
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Yes, a modded CA18DET beats a stone-stock 12A rotary.


But the 12A is lighter
CA18DET - engine alone: 282 pounds
CA18DET 5-speed: 85 pounds:

CA18DET w/o all acc. but with gearbox: 367 pounds
12A, all acc. & gearbox: 375 pounds, all the weight down low
add an alternator to the CA and that's 377 pounds...some of the weight up high, and more forward too

Look like the 12A beats CA18DET for weight!

Posted on: 2009/11/3 23:52
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