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I Supported Toymods
Location:
perth
Registered:
September 2002
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12A in my ae93 ??
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Wed, 15 January 2003 15:56
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A friend of mine is upgrading to a 13B and he offered me his recently recondition NA 12A for $100 . . . i know ! 
How much do you think it would cost to get it in my ae93?
Dont know much about gearboxes mating to engines so any ideas would be helpful
Cheers
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Location:
Newcastle
Registered:
May 2002
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Re: 12A in my ae93 ??
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Wed, 15 January 2003 22:05
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I have seen rotary engines in FWD mazdas before so it is possible. I am not sure if you can legally fit a 12A though due to its age.
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Location:
Brisbane
Registered:
May 2002
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Re: 12A in my ae93 ??
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Thu, 16 January 2003 00:11
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How the hell do you mount a rotary in a FWD car? The position of the crank is totally wrong... I can't see how it would work.
Anyway to answer the question, it would cost a shitload due to the large amount of fabrication work involved. Totally not worth the effort, even if the engine is free.
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Toymods Club Treasurer
Location:
Sydney
Registered:
May 2002
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Re: 12A in my ae93 ??
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Thu, 16 January 2003 01:55
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The crank is too high to mount in a FWD. The only FWD Maxda I've seen with a rotary was a late 80's 323 sedan which was converted to RWD to suit the engine.
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Location:
New Zealand
Registered:
May 2002
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Re: 12A in my ae93 ??
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Thu, 16 January 2003 04:23
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http://www.badrotor.co.nz/
See above under Feature Cars, 1987 Mazda 323 S/W for a 13B in front wheel drive. So yes it can be done but only if your a lunatic kiwi. There is also a late 80's 323 Sedan converted to RWD running a 20B!!!!!!!! You would need to really like your car to justify the money though.
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I Supported Toymods
Location:
perth
Registered:
September 2002
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Re: 12A in my ae93 ??
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Thu, 16 January 2003 10:54
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Ok then, how about my friend's ae-86 ?
At the moment he's got a 4ac which is being thrashed to shit, so when we rip it out, is it worth looking into to get the 12A under the bonnet??
mmm rotary sprinter
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Location:
MACKAY
Registered:
May 2002
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Re: 12A in my ae93 ??
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Thu, 16 January 2003 11:25
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Why would anybody want to put a 12a in a AE 86 or AE 93 when a 4AGE will bolt straight in , fit a set of 40 mm sidedraughts off a 2TG or 18RG a set of extractors and it would be more driveable and quicker than a 12A .
Trevor
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Location:
Brisbane
Registered:
May 2002
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Re: 12A in my ae93 ??
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Thu, 16 January 2003 13:38
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A 1600cc 4A-GE quicker than a 12A (which is effectively 2400cc)? I find that hard to believe...
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Location:
MACKAY
Registered:
May 2002
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Re: 12A in my ae93 ??
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Thu, 16 January 2003 23:11
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Mate are you serious???
The standard carby 12A rotary is rated at 105bhp - So I hope a 4ag with twin carbs and extractors would have more than that.
Displacement is totally irrelevant when talking about piston to rotary engines.
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Location:
Newcastle
Registered:
May 2002
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Re: 12A in my ae93 ??
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Thu, 16 January 2003 23:32
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I dont think that it would be legal to run carbs in either a AE86 or AE92. Also why would you even bother as 4AGE engines are fuel injected to begin with.
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Location:
Brisbane
Registered:
May 2002
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Re: 12A in my ae93 ??
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Thu, 16 January 2003 23:55
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Later emissions-choked version of the 12A were rated at 100hp or so, but earlier ones were 130hp. In any case, with a few minor modifications (like you're suggesting for the 4A-GE) this power output skyrockets. I would argue that displacement is very relevant; whether rotary or piston, they're both 4-stroke internal combustion engines!
I also wonder why you'd throw out the EFI and replace it with carbs? Seems like a backwards step to me...
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Location:
A.C.T
Registered:
July 2002
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Location:
MACKAY
Registered:
May 2002
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Re: 12A in my ae93 ??
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Fri, 17 January 2003 09:30
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The reason I suggested the the 4AG is that it is a straight bolt in job , no mucking around with making up mounts and adaptors and so on , as for the twin carbs over the injection is that with twin carbs you will get a lot more power than the injection unless you go the quad throttle body path. I suppose it all depends on money and time and if you have plenty of both go with the 3SGTE !.
Trevor
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Location:
Sydney
Registered:
May 2002
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Re: 12A in my ae93 ??
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Fri, 17 January 2003 10:16
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"I work at burger king making famous whoppers,
I wear paper hats,
Wwwwwoooouuulllddd you like an apple pie with dat??..
DING FRIES ARE DONE!!!"
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: 12A in my ae93 ??
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Fri, 17 January 2003 10:52
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| Corvid wrote on Fri, 17 January 2003 21:16 |
"I work at burger king making famous whoppers,
I wear paper hats,
Wwwwwoooouuulllddd you like an apple pie with dat??..
DING FRIES ARE DONE!!!"
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*Dr Evil voice* Riiiiight....
Is that a twin dizzy 12A? Aren't they an absolute disaster zone?
Anyway unlikely to be legal.
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I Supported Toymods
Location:
perth
Registered:
September 2002
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Re: 12A in ae86 ??
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Mon, 20 January 2003 02:13
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I have to agree with toyrotor, regardless that a 4a type engine would go in nicely, i have a 12A in good condition to play with, and i think a bridge port (any bridge port) in a ~900kg ae-86 would shit on pretty much everything on the road
The question still remains: aside from engine mounts etc, what else needs doing?
its a 1983 model 12A, single dizzy, carby
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