ok so i'm at taco bell enjoying my chicken enchilada and i rembered somthng. i had found a website that sold fc3s jdm motors so i got to thinking that i could buy one of those and either A drop it striaght in, or, B take it to rotor-sports and have them rebuild it while i putter around in the oem one, or c, i save some cash buy an atkins rebuild kit and do it my self, however i cant rember if the apex seals go bad from sitting around. i mean the motor will be draind of all fluids i just dont know if its worth the trouble of buyind it.....
PS it comes with a transmission, ecu, and wiring harness...
i know i have to make sure that the engine is either s4 or s5 to make sure its a diirct fit

 

If you get a j-spec, definately rebuild it. Even if it dones't have a blown seal (a BIG if for many importers) there is a decent chance the soft seals are bad from sitting too long in a junk yard.
Also, I haven't heard of the apex seals going bad from sitting, but its silly to reuse them when the engine is apart.

 

What website?!

 

ive seen rx7 that sit for 4 yrs and run perfect afterwards...

as far as getting a jdm motor its kinda random if u get ag ood one or not, ive seen people driving like 4 yrs on a jdm motor and ive seen one only go 4 months.....

since they ussually come with a warentee of some sort, install the motor, if it runs good then great, if its allready blown then id return it.

then do a compression test if compression is good like over 100, then the motor is probably in decent shape, if compression is shity then try to return it or then look into rebuilding it soon.

 

Yes, but for all you know the motor has been sitting for 10+ years. Also, a lot of importers won't warranty rotaries, and many of the ones that do won't honor them (search for osaka jdm imports or whatever they are called). Even with a a good core I would just feel much better with a fresh rebuild, plus you can streetport it that way.
If you can verify it has good compression and want to drop it in, then go for it, but start saving for a rebuild just in case.

 

royaljapanesmotors.com is the place i think the whole swap is 950 before shipping

 

well thats why i would ask specificly about rotary engine warentee, my local shop offered a 30 day warentee on rotary instead of a 90 day.


i would also only buy form a local reliable shop, as if u get screwed over you can at least burn there shop down... hahahaha

 

lol or at least burn out around the parking lot
and speaking of warentee's my friend had went up to advanced auto, he had bought an alternator for his car. it came with a life time warentee but, they said they couldent find anything on it in there system. so he got his step-dad to go up there and he started to get really loud when they told him the same thing. so he said " u meant to tell me i bought this alternator and your not going to hold up to your part of the deal" and all the customers were looking at him two seconds later they brought out a brand new one lol


but back to the topic. i'm just wondering if (well i know it would be cheaper) to rebuild it my self or take to the shop and have them rebuild it.... i mean its not like i couldent get the better spring, ect....

 

Got a question? Somewhat on the subject. I doing a jspec turbo swap into my s4. Do i need to get a s4 engine or can i get a s5 engine. Includes trans, wiring, and ecu. Also ive been told that the jspec turbos better than usspec. Is that true?

 

You can put a an S5 engine in, but it's a big pain in the ***, from what i've heard.

http://www.rotaryresurrection.com/ has some articles about it.

http://www.rotaryresurrection.com/2n..._s5_diffs.html

http://www.rotaryresurrection.com/2n...o_s5_swap.html

 

That sounds a lot like my father-in-law. lol
Also, an s5 motor can go in an s4, but its far easier to swap in an s4 engine. The wiring is pretty much useless to you since to use the s5 harness and ECU you need to switch out pretty all of the wiring in the whole car, even inside the cabin, which is a massive PITA. If for some reason you can only get ahold of an s5 motor, then you need to use an s4 front cover and TB so that the OMP and TPS will be compatable. Its all detailed in the links provided above.
And to my knowledge all turbos were the same within the series, regardless of where they were sold.

 

O ok that helps with the engine question. I will look into for getting a s4 engine. The power differance doesnt matter to me. Also thanks for clearing up the turbo question. Any suggestion on turbo upgrades. Im just looking something better than stock. Any direction I should look?