iv been looking into swapping a jdm TII motor and tranny into an N/A....does anybody know anything about these jdm motors, they seem pretty cheap and come with warranties, also are there any considerations i should think about for the swap?

 

wiring harness and ECU and be sure you get the warranty in writing..

btw, it's Jspec not JDM.

 

You may wish to use the search function next time. It is found in the upper right hand corner and can help you find threads like this that have been covered quite a few times.

The long and short of it, is that most Jspecs have been sitting in Japanese Junkyards for 12+ years now and getting a decent one is a crap shoot. Getting a decent one that drops in and works perfect for more than 6 months is even more unlikely.

The upside is that generally the are great for rebuilding. After being rebuilt they can last years.

As far as swap info please search on that. It has been covered to death. There are links on this and other information found in the FAQ for FC sticky thread at the top of this section.

 

i hope my hint at the warranty wasn't glanced over..

 

80-99% of the rotary engine warrenties on Jspecs are that it starts, not that it keeps running.

 

Same thing.

 

well that sucks, but i guess at least they make good cores and T2 cores are becoming scarce.

 

so it really doesnt make a difference if the seller gaurantees that it will start?

 

nope, rotaries can poop out if you look at em funny. mine did..

 

Starting and running well enough to drive on are 2 different things. I've bought 2 Jspec engines in the last 8 months. One ran like a champ until it threw a seal 4 months into it. I never even pushed it hard. The next one I bought, I could tell would be trouble. Putting a finger into the exaust port, I felt DEEP scratches in the housings. DEEP. I'm rebuilding that one and the previous one now, hoping to assemble as soon as my oil seal springs come in. BTW, the only reusable parts on the last one were the irons and one rotor. Both housings and one rotor were not usable. I did get a partial refund from the company because of this, but it was just a huge pain in the ***....

 

it sounds like its real hit or miss....are there any suppliers that are more reliable than others?

 

nobody?

 

well I got my motor from www.japanmotorimport.com and it's a good motor, nothing was broken. The total was like $1175 for motor and tranny. The only thing I didn't like was the metal shards in my turbo from them chopping off the downpipe too close. But it could take a dump on me down the road who knows.

 

why is it when someone asks a question you idiots want to jump all over them for not searching on it why do all that when someone new may be on and have different things to say about the topic and if you dont want to give an answer there is nothing wrong with hitting the back button and let somebody else give an answer geez not everyone wants to search for an hour its better to just ask and see what they say
next time just remember the back button

 

by the way that was intended for icemark so nobody else needs to feel like i was talking about them k

 

hey clueless one...

First, nothing like crapping all over this guys thread. Next time PM someone if you are unhappy instead of side tracking his or her thread.

#2 I answered his question as well as pointed him towards being able to help himself.

#3 If you have a problem with answering his questions (which I guess you do) as well as telling someone how easy it is to help themself, you should perhaps find another board.

One where you can be a stupied as you want and ask all the dumb questions you want. This board is for actually helping people; helping them by reading past posts and present ones.

 

Maybe because this question is asked every other week, And for icemark being an idiot, he seems to be one of the most knownledgable form member I have seen so far.

 

but yet he cant spell stupid (stupied)

 

Gosh, I certainly hope this isn't considered hijacking or crapping on the thread.

This got me to thinking about something. I've alway's assumed that the majority of the jspec/jdm engines were virgin factory engines. You know, factory built, run to whatever limits the Japanese bureaucracy have determined, then pulled and sent to the other markets. The last one I installed seems consistent with this as it's in great shape, just worn more than I would think 30k mi. would indicate (85psi).

One flaw in my theory I've already come up with. They must keep some or what would the rebuilders do for cores?

What does syklone's second engine tell us? Was it just my assumed virgin engine that was chunked in Japan and sent to us or was it a rebuild with nasty housings?

I don't know. What do you guys think?

 

CosmoTT, you're new, so unlike you may not be fully aware of Mark's massive contribution to this board and the wider rotary community. Take my advice: shut up now before you make even more of a fool of yourself, particularly if you hope to get help or advice in the future. Perhaps you should go read the FAQ too, and also the sticky entitiled "ATTN NEW MEMBERS, Read here before posting". Those threads are there so that frequently asked questions like this don't take up valuable space.

 

Well remember in Japan, 30K miles would be about the same as 60-80K miles USA. The driving conditions in Japan are considerably worse than north America and there is not the highway system like here.

 

sorry everyone.....i didnt mean to start up quite a stir in the forum, ill be sure check the archives next time. p.s thanx for the helpdful advice for those who contribtued thoughtfully

 

You want my experience with JSPEC motors... well here it is.

In November I ordered a JSPEC motor from Japanstarmotor. I've done my searching and realized that no one has had a problem with them. I paid $1000 for motor+tranny shipped to my door. I had the motor in 2 days. I wanted to do the misc tuning. The motor was drained of all fluids and was not seized when I received it. Dude told me he would warranty it for 30 days and pay for return shipping if motor did not run. It (by chance) came with a Blitz BOV and a OS Giken Twin Plate. Neither aftermarket part was removed. To make a long story short. It fired right up and I have not had one problem with the motor or tranny, turbo is great and compression is great also.

Keep in mind one thing, this is MY experience and not everyone will have the same one. I say go for it, and if you are worried about whether if it will start or not, send your motor to Kevin at Rotary Resurrection. He will definitely rebuild that badboy for the best price. It is a hit or miss risk you have to be willing to take. But the way I look at it, if you pay the money, you can have your self a great running motor for $1000 (if it works) or a perfect rebiuld w/tranny for $2000 through Kevin.

Those are my 2 cents so take it for what it's worth and how you want.

 

You mean except for the tens of thousands of miles of highways across the country?

The reason J-spec motors have such low mileage is simply because people don't drive their cars in Japan as much as we do in America. Gas is expensive, maintenance is expensive, theres bad traffic in the cities, and there's an excellent public transportation system.

The countryside is different though. There, many more people have cars, and the lack of a tightly-woven train and bus system makes driving more nessicary.

Hmm, Japan Star Motors and Japan Motor Import... I'll have to keep those in mind if I end up getting an NA.

 

I got a mazdatrix shortshifter and mazdaspeed clutch with my s4 from japan-motor-import. But no intercooler tubing.