rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

ok so i just picked up this rx-7 with blown apex seals.
i've never worked on a rotary, but i'm not afraid to start now.
the plan is to have it turbo. the question is should i buy a jdm turbo 13b motor for 800-1000 from an importer or should i rebuild the 13b i have and turbo it.
side questions are

are the non turbo and turbo motors the same?

how much hp/boost can a nonturbo motor handle with a fresh rebuild? (i know i hate these questions also, but don't flame me too bad.

if it would be better to rebuild the one i have i'd rather do it cause i don't want the stock turbo anyway.

Re: rotary guys chime in please... just got an 89 rx-7 with blow apex seals
 

Search N/A Turbo build on Rx7club.com

But honestly I'd say it's worth it to get a full rebuild kit and just do it yourself, if the broken bits didn't score the irons you'll be alright.

That motor can be out and apart in ~1hr30min if you have a long enough pipe to get the front cover off. Impact gun won't work more than likely, use the pipe.

You never can know the exact condition of a JDM unit.

Re: rotary guys chime in please... just got an 89 rx-7 with blow apex seals
 

cool, i'm gonna be doing a lot of reading on these motors for the next 2 weeks till i get paid again. i'm gonna pull the motor sometime this week and break it down to see how everything looks.
the problem is it's been sitting for 10 years so i'm not sure how this motor is gonna look inside. i might end up looking for a blown motor and rebuild that one. i've seen what motors look like after a few years of sitting in yards so i can just imagine what this one is gonna look like.
i picked it up for $200 and a $165 tow
$365 for a car i've been wanting for the last 8-10 years. i'm pretty happy
only a little bondo on passenger side fender and a tiny bit of rust on the sunroof, but not inside the sunroof track.
before wash
Attachment 17164
after wash
Attachment 17165

Re: rotary guys chime in please... just got an 89 rx-7 with blow apex seals
 

Not bad, looks in good shape. So where are the money shots?

Re: rotary guys chime in please... just got an 89 rx-7 with blow apex seals
 

---- I'm jealous.

Pretty sweet you got a GXL too, four pot brakes and such.

It's an S4 is it? Rotors are a lower compression than later N/A rotors but you're better off getting TII rotors or something of the like anyway, as the N/A rotors were all LPC.

Re: rotary guys chime in please... just got an 89 rx-7 with blow apex seals
 

Check out this http://www.aaroncake.net/rx%2D7/projecttina/
its a member on here.

Re: rotary guys chime in please... just got an 89 rx-7 with blow apex seals
 

you stepped into the world of trouble man, i still need to get another "good" motor for my 83 gsl. sucks i miss driving it so bad.

Re: rotary guys chime in please... just got an 89 rx-7 with blow apex seals
 

Shut the ---- up, 13b 3-4mm seals > 12a 2 piece iron seals.

All 12a's should be rebuilt when you get them any way.

Re: rotary guys chime in please... just got an 89 rx-7 with blow apex seals
 

i'm not afraid of all the "problems" these cars have.
waffles... i'm not sure what you mean by "s4"
more pics
Attachment 17155
Attachment 17156
Attachment 17157
Attachment 17158
Attachment 17159
Attachment 17160
Attachment 17161
and a pic of the crx i'm selling after getting this running. just bought her "new" rims and tires. tires had less then 500 miles on them and now i don't lose traction in second gear anymore
Attachment 17162
i'm gonna take the motor out and drop it in my wifes 91 civic 4dr then put her d15b2 in the crx to sell. i'll get less money for it, but then our 4g4d will be fast.
here she is
Attachment 17163

i'm glad i found this rx7 today, i'm so excited.
i've been looking on craigslist every day for
fc rx7
mk3 supra
3g camaro
1g eclipse
65-67 chevelle
65-70 nova
i search for cars under 1k and i've been looking for about a month. i've seen a few things, but something about this ad made me drive 50 minuets to look at the car. when i saw the interior and the body condition i couldn't pass it up.
the tow truck driver offered me $500 right when he saw it. we were talking and i told him i paid 200 for it and he said "i'll give you 500 right now". i didn't even think about it.

Re: rotary guys chime in please... just got an 89 rx-7 with blow apex seals
 

well thanks for the info now, where we you when i first bought the damn thing? its gonna get a 13b now anyways, so enough bitching already.

but to the OP, youll have fun with the car thats for sure, i paid 900 for mine, but it has all kinds of goodies. i sure hope yours is LSD equiped.

Re: rotary guys chime in please... just got an 89 rx-7 with blow apex seals
 

I commented on your thread, at least I meant to.

His isn't LSD equipped if it's an S4 (not updated 2nd gen)

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

what is an s4 and how do i know if it is one?
also i'm not afraid to put an lsd in it. this is going to be my daily driver, but it's going to be a track car too. full interior, but ready for the track.
not like my crx, gutted to hell and back

i'll probably put my 1k watt sub in it too. nothing better then country music bumping in the ghetto.

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

Pop country is for fags.

Series 4 was 86-88, Series 5 was 89-91.

Updates were the ecu, body things, as well as some different engine components, mainly the lightened rotors/high CR. But I think one piece eccentric shafts became standard for the Turbo model as well.

I don't remember if there was a GXL model for S5 though, your car could have been in the half way point, built in 88 labeled an 89 or something.

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

i'll check the build date, but i know it first sold in 1990
also who is talking about pop country, i'm talking about the old ---- i grew up listening to. either that or some hardcore punk or some rockabilly.

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

The Rocketz ftw. Them and the Stray Cats.

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

i like rockin ryan. sounds like it's old, but it's new.
i'll have to check out rocketz, sounds famillar.

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

http://youtube.com/watch?v=fSFE09oL78g

The Rocketz are new, The Stray Cats are pretty old.

http://youtube.com/watch?v=YoaazVGPtuQ

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

Rockabily and rotories. How much better could this thread get! :6 I've always wanted a 7. Hell I bought a 1G Rx7 haynes manual just to read and learn about these mysterious creatures and a few other rotoray books. The best part is that I've never owned a 7 before. 8)

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

That's a pretty sweet deal for $365. I used to have a 4dr just like your wifes...is that an EX??

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

no it's an lx with the shitty dual point motor.
i'm pretty sure we are gonna put the turbo zc from my crx in the 4dr.

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

Do it.

Swap the suspension bits while your at it.

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

suspension bits consists of egay coilovers and blown out oem shocks :S
i'll probably swap them over anyway cause that 4dr needs to get lowered NOW.

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

No.

Nevermind. Anything is better than chinaman springs.

Save up for decent springs, or decent struts and cut the springs. Either way don't use the egay ----.

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

Dear wafflesincars,

I hope what you are spewing into this thread is just what you are paroting back. You seem like a typical "I use to have a rx7" owner.

All GXLs were infact LSD equipped.

The only use of a multi-piece eccentric shaft in a modern 'mazda' wankle is in 20b and other race engines useing three or more rotors. Also, their are S5 GXLs

At least know what you are talking about if you are going to give someone advice.


To OP, you best bet for info online is nopistons.com(decent) and rx7club,com(the honda-tech of rotary.)

Hard to say what you should do, as so many different things should be taken into account. But I was able to rebuild and bridgeport my six-port aka N/A motor. Then turbo it for about $900 total.

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

Well no ----.

Thank you kindly.

As for the E-shaft though, I know the earlier 13b's flywheel seat was welded on and balanced after the forging from the factory.

Re: rotary guys chime in please... just got an 89 rx-7 with blown apex seals
 

i am on both nopistons and rx7club. thanks for the info on the lsd though. from what i've been reading i did not think they were lsd.

oh and i am really into research so i've been reading about them a lot. i don't really listen to one person i read a bunch and figure out what is right.

and i ------- love when someone types his name out
wafflesincars