Im looking into a jdm motor and was wondering if I could get some feedback on what everyone thinks of their performance

 

If you get a good compression one, performance will be the same as a USDM turbo engine. IF you get a poor compression one, or one with bad coolant seals or other defect, then performance will suffer greatly. :P

 

I was going to get one with the new apex seals, maybe even go from n/a to a tII

 

well if it has new apex seals then it is a rebuilt motor and that all depends on who built it.

 

Eh...what? You must be new to this game...

Jspec engines are just used junkyard engines. You know this, right? They won't have new seals, or new anything. Theyre all just as old as the ones we have, though perhaps they havent been driven as far, or as consistently. BUt they have likely been allowed to sit, which for a rotary, is very bad.

The best thing you can do is buy a cheaper jspec and rebuild it.

BTW, all jspecs are turbo, there were no japanese nonturbos after 85.

 

i already explained this to him in another thread.

 

the JDM site has a list of options and in the cheaper list they have a "basic" and then the more expensive says they have new apex seals that are better than the stock ones

 

Looks like that worked out really well for everyone involved

Well, I'll be honest. You can believe what they say, or you can beleive what we say. Perhaps they have an in house rebuilder for their jspecs, but I have never heard of such a thing, and if such an option existed it would surely add to the price greatly. The best thing you could do is do it yourself or contract some builder to do it for you so that you know exactly what was done, not what "some website" said.

And if you go around asking the same stuff over and over without doing your own research people are going to chew your ***, and I'll be first in line.

 

this is my first thread on this thank you very much, I have no idea why you think I have been going on about this over and over like have nothing better to do than sit on the computer and ask the same question over and over. As for what this company offers Im asking what everyone thinks of their work and I was only pointing out what their options were. I checked your site and prices, now would you suggest that if I bought an engine from you that I replace the apex seals or are they replaced by you already??

 

I made the statements I did because I (and others who frequent this forum for years now) see this on a weekly basis. New guy gets car, decides he wants to shift mad quick, and wants to do "the swap". He then floods this forum with posts on a daily basis asking the same things that we've answered for years. So I was trying to head off some of that before it got started, as you seemed to have little clue about jspecs.

You didnt even post the site, but I can only assume that you're still talking about a used, jspec, junkyard engine.

What my site talks about is a rebuild, not a used engine. OF course, during a rebuild, a full teardown, evaluation, and seal replacement is performed. They are 2 totally different animals. With that said, anyone who does a rebuild would surely install new apex seals, they are the number one wear component in the engine. IF there is the "option" to replace apex seals or not, I would stay away from that shop.

 

Count me for second inline. To me it seems like the hardest decision for people is the $$$$. It's going to cost you money, it was free then I't be the most popoular engine option. The bottom line is you get what you pay for most of the time. Don't expect a lot for a little. It's in your favor to do your research and learn about the engine. If' your going to build an engine or anything for that matter you should know what it is your doing.

Example Ikea furniture, you ever try to put it together with out reading the instructions, yea you can do it but sometime after it's put together, you realise that something is installed completely backwords.

 

go easy on him Kevin

anyways, we are just trying to explain that jspecs(JDM) engines are not exactly reliable engines because they usually sit untouched for long periods of time. no matter what anyone here sais they cannot guarantee their engines, not even a builder can guarantee that an engine will not fail due to acts of god but i think we have a bit more faith in our work and a bit less salesman mentality.

one good thing about jspecs is that they are complete, i have to admit that. they do make for good turbo swap engines but i still suggest having one rebuilt prior to installation.

 

and they make good cores for rebuilds, no?

 

k

 

for the most part, due to their low mileage.

 

has anyone bought an engine from TDR? turner design racing they seem to have pretty good prices and I just need to know how well they perform.

 

I've never heard tell of it?

 

this is all i can find on the http://cgi.ebay.com/ebaymotors/ws/eB...spagename=WDVW

 

A lot of what's said in that auction seems inconsistent as far as packages and such. Also, reading the warranty, there is almost no use in the warranty, since there are exclusions for every mode of failure an engine can encounter. It is also stated that any modified engine is not covered under warranty, so unless you're installing this into a bone stock car (and can prove it) the warranty seems irrelevant.

Also something to note, the RA seals he's using don't like used rotorhousings all that well, while an atkins or mazda seal tend to break in much quicker. I'll usually only use an RA seal on an engine with new or like new housings.

 

i hate it when people show their detailed engines for their sales, like you will recieve an engine with the lettering detailed like that.... right!

the price is good but i've never heard of them either but they do offer all the services most shops do.