My 83 RX7 with a 12A and Nikki carb (emissions delete) keeps flooding to the point where I stall out and can't get started again. I'll start it up, the fuel level is in the middle of the sights on the carb, drive it for a while, then it'll randomly start idling really rough and die and won't start. After this if I turn just the fuel pump on I can see the level basically maxed out, and fuel will sometimes even be dripping down the barrels.

If I wait a while, or turn it over for a while with the fuel pump off, it'll start back up. I know it's flooding, I just don't know why.

I've rebuilt the carb recently, replaced the needle valves (twice), and added a Mr Gasket fuel pressure regulator. If I turn the regulator to 1 psi, it doesn't get enough fuel while driving and stalls till the bowls fill back up. The next highest adjustment is 1.5 psi, and it floods there. Im thinking the regulator might be busted but I'm not sure. I don't have a pressure gauge. Anyone have any suggestions?

I have an 83 RX7 with a 12A. Usually it runs pretty cool, around 170 - 180 degrees. It sat for a week, and I took it out for a short drive, and it was getting over 200 degrees. I would stop and idle and temps would drop back down, then go back up once I'm driving. Also the radiator cap spewed out coolant, even though it only got to about 205 Max.

I've recently replaced the thermostat, flushed the radiator, new oil cooler and fans. My biggest worry was coolant seals, but it's not smoking from the exhaust, and no bubbles in the coolant. I'm thinking the radiator cap is the problem. Anyone have any thoughts? It's a "newer" engine and I didn't want to do a rebuild just yet.

just caught it, last day is today.

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Hey guys I’m thinking about getting a rx7 fc or an Rx8 as a daily driver and as a first rotary car but I’m suck on what would be better of the two? I know they are pretty different cars from different time periods but I like them both equally. I’m pretty good with my hands and I have a pretty good sense of how to take care of a rotary and I’m not worried about gas mileage either. Any suggestions or opinions would be appreciated!

I get this is probably asked very frequently and most people really don’t have any business building an engine they know nothing about. Me personally I’m a skyline person, I have 2 rbs but I’m wanting to build a rotary for the fun of it. I don’t really care about power being crazy, I I just want to have a fun little project that I can take my time on and not just have a car with no motor sitting around.

I know it’s probably not gonna be cheap, or easy or anything like that, but where is a good place to start? I’m thinking about just getting a 13b off marketplace and tearing it apart to see what’s going on. If I just build one from nothing, I don’t know what it would need or where to start, do any of yall have recommendations? Time is not an issue

I have a 12A with junk housings, and it seems overall cheaper to piece together an NA 13B. I know that the e shaft, housings, and rotors are different sizes, but would the 12A irons work in a 13B motor? What are the major differences?

I was thinking about getting a mazda rx7 fc but I have no idea what to do to it when I get one like what to replace and swap out I hear that the apex seal is one of the first things to go but I don't have the skills to replace them myself so are there any places in the fort Myers area that might be able to replace or rebuild the motor

Sorry if this is a dumb question but I just recently became very interested in putting a rotary in my fox body mustang and I can’t get over how good a 4 rotor sounds. I know a real 26b is basically impossible to get unless you are wealthy but I’ve heard there are companies in New Zealand that can do some black magic on a 13b or something. Or does anyone make a good quality replica sort of thing? Thanks for the help.

help the boys out https://givealittle.co.nz/cause/charlie-and-bill-jump-the-ditch

Would bad coolant seals cause a loss of compression? It looks like it would since they border the outside of the combustion chambers, but I've read that they wouldn't

Hello, I've been obsessing over rx-7/8 rotary engines and in my search for a 3d model and more information on the rotor I came across a video where someone machined the face of the rotor off by about an inch and revealed that the entire thing is hollow with some fin type things but all very intricate. This got me thinking about how these rotors are manufactured and I can't find anything on the internet about how Mazda is doing this. My only theory is there multiple parts but I'm not sure where they would be joined and what would hold them together. Please if anyone knows how Mazda makes these let me know because I can't stop obsessing over this and I need to work on school but I keep getting drawn in by the calling of the dark magic manufacturing of mazda producing rotors. I will link the video in replies (there) or an edit if I can find it again and also if anyone knows of or has a really exact model of a 13b rotor please let me know because I want to 3d print one and try to cast it or something (not to actually go in an engine tho). I also posted this in another rotary reddit but this ones bigger so maybe I'll get an answer faster here (I'm extremely impatient).

hello i’m looking for some advice on buying a rx7 fc. i love the car and my friend is willing to sell me one but it doesn’t have an engine or transmission. i was wondering if i should put a rotary engine in it or smth else? and from what i’ve read the maintenance for the rotorys don’t seem worth it. and if a rotor is what i should go with what should i be looking for(does any rx7 motor fit my model?)