Hey what's up guys my name i Nick and i'm from Ohio....anyways i'm getting ready to buy a '85 RX-7 GSE and its a 12a. Im actually wanting the 12a over the 13b for now. Im new to rotary motors and need some support. To start off does anyone know the best place to start as in cheap parts to build up to porting and such. i thought about my 1st part which is a stage 3 O2 Sensor. I was wondering if it would be worth the $300? If there are anymore parts that are like $100 and below excluding like wireset's please tell me. Message me or something and let me know.
Thanks,
Nick

 

Great intro, Nick! Now, are you sure you got a 1985 "GSE"..? I'm thinking it's a GSL since you say it has the 12A rotary engine in it, does it have the rear brakes? Then, it's more than likely, just a GS...if it's a GSL-SE, then it's a darn shame that someone pulled the EFI 13B out of the car and replaced it with the smaller 12A.

In any case, welcome aboard! It's always good to have another 1stgen guy join the Forum!!

Mario III

 

Thanks for welcoming me and it might be a GSl because i haven't bought it yet. Like i said lol i don't know much about rotary's or rx7's yet, but i'm sure being here will help me fulfill my legacy. Oh by the way thanks for the welcome aboard.

 

Welcome! first I wanna say 1st gen FTW!! and as for 02 sensors, I wouldn't worry, most of us run straight pipe, it's way too hard to smog a lot of these cars, so we just it done the illegal way, not to mention if you decide to port your engine, it will never pass smog. worry about making it some what reliable first, then worry about making it fast!

 

Thanks man for telling me about the 02 sensor because im not much of a mechanic. i want to be a diesel mechanic but that will be next year. Where should i even start? 1st things 1st though the guy said the car needs a new thermostat. i looked it up at autozone and its like $30. is it an easy part i could put on myself with novice rotary experience? thanks guys.

 

Not necessarily true....I used to run a Rotary Performance big street port 12A...we kept the air pump and use a switching valve that bled off the air pump output into the catalytic converter at 3500 rpm into the atmosphere while running a custom built 2" primary header tube into a 2.5" collector set up. This combination passed the Texas emissions sniffer and generated 115 rwhp with a bone stock, no cfm Nikki. Who knows how much it could've made at the rear wheels with a Sterling carb and manifold up top. 115 rwhp roughly translates to 135 hp at the flywheel through a standard transmission.

At this point, with a carb'd 12A, you don't need to worry about O2 sensors at all. The thing sticking out of your exhaust is not an O2 sensor, it's an overheating sensor for the exhaust. You actually have a dummy light in your dash for it in case that ever happens.

 

Wow i love this place and i love you guys (totally non sexual) but thinks i would of never knew that.

 

now that you say that, Can you do a write-up on that with pics? I would really like more info because it sounds fairly simple but i want to do it"right" lol- and do you have to be ported to achieve any gain?

 

Here im going to post pics of the rx7 im going to look at tomorrow.

 

never heard of anyone using a set up like that, cuz after all if you're gonna port, you're going for power, so why keep parts in your car that don't help you go faster, that's just me though.

 

Congrats on the 12A! That is what mine are and I am also a newbe :-) As far as diesels, I have a Ford Escort that does pretty well but the oil in it is as black as India ink seemingly almost immediately after changing it. I really like the simplicity of the rotary engine; it has almost no moving parts as far as I can tell...