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Old 12-03-01, 09:14 PM
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replacement rotary engines

my 87 GTX engine has lived a good life but i think it needs to Rest in Peace now, with 190,000 miles on it. which engines can i put in it from later models Example: will a gen 3 engine fit without changing the transmission or or bolt placements.

if not , which later model engines will fit in the 87 body. i dont neccesarily want to put a turbo in it yet.
Old 12-03-01, 11:01 PM
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just go with the 89-91 motors the are better. If you really want to make the most of it though, you will need the computer to go with it. more$$$
I would just have your motoer rebuilt. That way you could street port it and put in better apex seals.
Old 12-03-01, 11:55 PM
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Im assuming a gtx is a non turbo in your book, since you stated you didnt want a turbo. So any engine from an 86-8 NA fits any other 86-8 NA. You can upgrade tot he 89-91 NA motor too, using your fuel injection adn wiring. SOme people even like the 89+ intake too, using the 86-8 fuel injectors. IF you go turbo you can use either, but you really need to swap every wire and drivetrain component in the car.

BTW, Im about an hour from you if you ever need help or parts for your FC. I have a 86-8, newly rebuild, streerported engine sitting in my basement if you might be interested. I think it will go in the $1300 range.

I can install an engine in a day's time, and I have about 20 or so under my belt. Im also about to start doing rebuilds too, so keep me in mind. Visit my parts page below for more information.
Old 12-04-01, 07:03 AM
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isn't GT-X the Jspec designation for the TII?
Old 12-04-01, 12:10 PM
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Thats what I thought...gtr for 87-8 t2, gtx for 89-91 t2. But he clearly states he doesnt wanna go turbo. Whether or not he's right about the designation, I assume he means he has an NA car.
Old 12-04-01, 06:35 PM
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I wouldnt mind going turbo , but i figure that would drive up the price of the change out, which i dont want to do.

from looking at all of the different parts for turbo and n/a i get the feeling i would have to replace more than the block and the exhaust

the GTX for the 87 is N/a. if it had been turbo i dont think i could have bought it for 500 dollars. it was a good deal. has a lot of miles on the engine but good body with all of the paint still on it and a tight tranny.

Thanks,
Justin
Old 12-05-01, 11:25 AM
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Not to be a know it all, but the GTX was a japan-only designation for 87-88 turbo cars, since there werent any non turbos made in japan. Here in the states there is no GTX or GTR. Sure youre not thinking of GXL? IN the US, in 87, there were the following non-turbo models:

GXL...all power, optional leather, cruise, sunroof, power windows, LSD rearend, speed sensing power steering standard, auto adjusting suspension(buttons on console define this as a gxl, only car to com with AAS), 5 lug wheels standard with 4 piston front brakes(has a GXL sticker on front fenders)

BASE...some options available, may or may not have sunroof, power mirrors, has cloth interior, 4 lug wheels designate any car as a base(unmarked as anything on the fenders)

SPORT...some options available, may or may not have sunroof and aluminum hood, LSD standard, 5 lug wheels, 4 piston brakes, and turbo suspension standard. 5 lugs with no power windows set this apart from a gxl. Usually has darl gray/black plastic pieces as part of the aero package...small rear wing, mudflap type deals in front of and behind each wheel. UN marked on the fenders.


Turbo II...all options of a GXL excetp AAS, and turbo drivetrain. Has turbo II stickers on fenders.
Old 12-05-01, 09:25 PM
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I am retarded

Yeah i am a moron. i dont know how i put GTX instead of GXL since it is written all over the side of my car. oh well i wont do that again.

what all would i have to replace in order to change it out with a 91 TII engine? in order for it to be reliable.

so call me a dumbass from now on
Old 12-05-01, 11:28 PM
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If you want it to be reliable and right...basically every wire, electrical, and drivetrain component in the car. A friend of mine in Charlotte is doign this with his car right now, and just got it running. He had both cars side by side, and it took him about a week. He put an 87 turbo setup in an 89 gxl, but you;'d need to put the 89-91 turbo wiring, electronics, and drivetrain into your 87.
Old 12-06-01, 12:59 AM
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I recommend that SP engine if the price includes installation. It is the easiest option, and would have about the same HP as a TII engine but without all the trouble. If the compression is good, then I think that it will be at least as reliable as any TII engine that you would find from one of the various J-Spec importers. If you don't like the idea of a SP engine, then you should probably just get a regular rebuild, which runs about $2K.

All of the 13B engines will bolt up to your current transmission. All of the 2Gen engines will bolt up to your current engine mounts, but the 3Gen engines have different mounts. All of the turbo engines have different ECU's and wiring than your car, as do the 89-92 NA engines. Basically, the only engines that will fit into your car without a lot of trouble are the 86-88 NA engines.
Old 12-06-01, 07:56 PM
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Ok i think i have decided to go with a rebuild of my current engine or buy a rebuilt 86-89 na. I went to the auto parts store, only to find out that very few people rebuild rotary engines

does anyone know where i can get a rebuild close to Western North Carolina. (as close as it gets) or a website where i could order one or send my engine to,

i will go to hypnytyz7's website

I guess if i want a TII i will buy one

Hypnytyz, would you be willing to put any sort of warranty on that engine, not much of one but just so that i dont get it in and have it flop on me without a hope. (not to say you dont do good work but i am sure you can understand my position) also, does the 1300 dollars include installation cause i wouldnt mind doing it myself.

oh and what is SP?

thanks for the help,
Justin
Old 12-06-01, 11:32 PM
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Warranty, hmmm..well, of course Ill warranty it 100% against DOA or any defects to begin with. But if Im not doing the install I cannot really give much of awarranty since I dont know what's going on with it. We can work something out though, so email me or something, hypntyz@charter.net. I can also give you my cell and we can talk it over. The $1300 does not include anything except the bare block itself(no intake or accessories or oil pan, you need to use what is on your existing engine) and no installation, though I only charge about $400 to pull your engine, swap every part over, and reinstall it, adn tune it to run. This is altogether about 20 hours of straight labor, but then of course Id guarantee it to run properly. OF course you know that with a 0 mile rebuild there are break in procedures that MUST be followed if th eengine is to have a long life. Oh, adn SP is streetported, an upgrade equivalent to adding a larger cam to a piston engine. IT changes the flow rate and timing of intake and exhaust ports, allowing for more flow and power.

Why dont you email me hypntyz@charter.net and we'll talk it over, and i can also give you my number.
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