i am tossing up ideas about a new motor or rebuilt or used whatever but i was looking and i found that a forum user Rotaryworks sells 12a jdm engines that make 130 hp stock for 1000 is this for real how come more people dont jump on this it sounds like a good deal to me. im addicted to my 7 help!!!!!

 

cmon guys nothing nobody knows anything about these motors.

 

cause it's possibly BOGUS. true those jdm engines didn't suffer from emissions control, but i dunno about 130hp. you said it yourself, wouldn't people be all over this??? they aren't because it's probably not true. if it is, then FUG YES. hahaha get one!

 

I think he's talking about the 12AT engines that Rotaryshack are selling. If that is what your talking about, please search, the topic has been covered many, many times. And the $1100 pricetag is a far shot from the total cost to get one running in your car.
Grant

P.S. My apologies if I'm totally out to lunch.

 

Yeah, if youre talking about the JDM 12AT (turbo) engines, $1000 for just the engine is a far shot from actually getting it in the car and running as said, but for about $700 - $800 + shipping depending on year you could probably find a JDM 13B Turbo which made I believe 190 HP stock. Granted, you would still be a far way from getting it in the car and running, but the engine itself is more power, and IMO more available for parts and accessories.

~T.J.

 

For $1000 you can spend $800 on a full set of seals, $100-$200 on a junkyard 12a, and then spend some of your own time and do the mildest porting job ever and see 130hp. I'm also guessing that If someone is building a concours show RX-7, then yes a JDM 12a is vital. If you want an OEM turbocharged 12a, then yes you gotta cross the Pacific to get a 12at. There again though, the 12at's turbo was tiny and did very little. As RotorMotorDriver said, you also have to consider shipping and installation. If you want to work your car to have a theme of JDM parts then get it. If you want to have a RacingBeat RX-7, then get your *** to RB and start charging.

People seem to be rather hung up on the JDM thing. JDM only specifies that the engine was made for the Japanese domestic market. Nothing more. It is entirely possible that the Japanese model was tuned for different gasoline (probable, confusnig when you consider that the rest of the world uses RON and we use R+M/2 to rate octane), and economy rather than more power. Stop thinking in terms of labels and lists of numbers and parts. If you want to build a more powerful car you need to use the correct parts for the job, not the ones that come with a sticker. If the $5 autozone part will work the same as the $35 'designer' part, then why use the designer part? I find it to be akin to wearing desinger underwear, by the time anyone see's the label on your knickers should be the last thing on thier mind.

 

actully if you do some reserch you will find the that Japaness market 12a's were 130hp stock with a better carb and a also more aggressive port timming. Also I picked these engines up to help the 1st gen crowd after these 4 are gone i will not carry any more. TELL ME WHERE you can find prestine 12a's with less the 30k miles on them. And also before you state i have no idea where these came from understand you are dealing with a business that does nothing more then import jdm RE's. So yes we do know the quailty on our engines... Take care

Shane

 

hey rotaryworks werent ya'll selling theses enignes on ebay 2 weeks ago??

 

So then is my 12A 130hp??

 

Remember mazda did put out a 12a 6 port, not in North America though, one of these would put out about 130 hp with good torque.

 

LOL thats a good one!! obviously you never drove a 7 with a 12a 6 port!! slow as hell

 

I have been living in Japan since 1985, and have never, ever seen a 12a that made 130hp stock from the factory. the 10a cosmo 12a familia's rx-3's 12ap SA22c, all made less than 120. the 12at that came in the cosmo, and the SA22c was about 135 or 140, and IMHO is not worth the effort for performance, the apex seals in that model where ****, and they were constantly blowing there o-rings. Not until the FC did reliable seals and orings for rotaries appear get a FC motor port it power FC it and be done with the matter.

 

wrong...what part of jpan do you live in???

 

chill bud, i don't know why you are getting all defensive. look at my post again, i stated IF IT IS TRUE, then let us know. HIT IT UP! but think about it, why do people not get these more often????? plus, dont tell me about your shop and it's credability, i don't give a damn. i trust one shop only and it's initials are R.S. ...... Take care,

 

Don't confuse horsepower with the common jappanese term of Baraki, they are not the same. most of the americans I have met, as well as the importers in america confuse baraki, and HP.

as listed earlier in the column mazda did make a 6 port 12a, reagrdless of what they claim I saw a stone stock 4 port, and 6 port both get dynoed in 1986, one was a 1980 model (which had 78~79 body details but 81 on up ignition but 4 port ) and a 82 6 port they both had about 16000 km on them and both ran great. they also both ran up a 135 baraki on the jappanese dyno. so we both know all makers underate slightly for various reasons, but these both ran up the same figures.

 

http://www.der-wankelmotor.de/Fahrze...A/RX4/rx4.html

12A, 130ps Are we satisfied now? It's not because something wasn't available on the market you live in, that it doesn't exist... And this was no 12AT.

 

The 12A TURBO was sold in Japan! They peaked at 165 Bhp. How i know? Well i know of two people who has had them imported to Norway. One of them is mazdafun, try to pm him and im sure he will give you the correct data!

 

dang...so much hostility...what does an 83 12a make? 105 says the factory...maybe 110...who knows any more...but, and heres a big but...how many of us have removed our cat...ported our intake manifold and thrown the rats nest out of the window and seen 130+hp? well me for one!

think about it...why are the ports on the intake manifold smaller than those on the engine...its either for racing (the whole being able to remove material from things) or because other markets have larger ports on their intake amniforld...and north america gets the horse power shaft once again. almost every car in northamerica that is sold on the international market, makes less hp in NA than in the rest of the world

 

Read again Horsepoewer and Baraki are not the same the PS figure is what most JN's refer to as Baraki its measurement is not the same as HP. 1 PS does not equal 1 HP. Metric, and Imperial measure are not the same.


Edit: also living in Japan means that the only Mazda Rotary that was not available to me is the one in the lemans car. all other versions and models were sold in Japan. edit:

 

First: I know that a 12AT was available in Japan Mortenf, but I wasn't talking about that.

Second: PS is not the same as HP, but it's actually a German (european) standard. It's usually a bit lower then the HP figure. For example: the 241hp from an FD (EU ones had 241hp) are equal to 239ps.
I have no clue what baraki is, all I know is that the link I posted states the PS as it was advertised in Germany. I can obviously take no responsability for any wrong numbers should they be given by Mazda, can I?
So OFFICIALLY we got 130ps (must be some 131hp) 12A cars. Wether or not this number is right I can not know as I never seen a car like those, let alone having one on a dyno.

 

Im not getting defensive, im just tired of everyone on the forum stating one person is lying when they are not. It gets old ya know Anyways another thing is for the last 3 years i have been begged to bring these engines over i bring 4 awesome condition 12a's and no one wants them. That dont bother me, but what does is when clients are intrested in them and someone talks them out of it and they really dont know what is going on. Well take care and hopefully this 12a situation is over.. lol take care

Shane

 

ps i still have 4 availble. take care

Shane

 

Well, it's actually neither of those. It's to stop reversion of the intake charge.

 

i just droped the price on these to 800, once they are gone no more awesome condition 12a's from Japan.