Im probably getting a 93 RX7. It allready has these mods now downpipe, intake, exhaust, boost gauge, temp gauge, K&N, and a upgraded clutch system converted to 929 cylenders, New fuel system from injectors to rails to pump and a FMIC from Greddy.
My question is what next? I am unfimilliar with the rotary engines. I keep reading, get a new computer. Does that mean get a PCM, or a standalone system, custom burned chip(does the PCM have a place for a chip anyway?) or is there a PCM that is a relpacement for the factory computer with diff. fuel curves, diff pulse widths, timing, etc..
Oh yea, what "should" this car run with a great driver? What do these cars run stock? Thanks in advance and I look forward to modding it. Oh yea, I like to do custom Fab work, has anyone ever tried a diff intercooler? Im talking about one from something else, lets say a Ford Lightning or whatever. Instead of spending over a grand for an intercooler, why not spend about 150 bucks on one and put it on? Of course you would have to fab diff piping, but thats not a big deal.
Sheetmetal intake, anyone ever done this?
Please dont get angry at all my stupid questions, as i plan on going a long ways and I have to start somewhere i guess. One more thing, since the rotary's have seals, has anyone ever tried a reciever groove(o-ring) on the egine to keep from blowing the seals? Or are the seals a safeguard to let you know something is not right to begin with and give the excess pressure somewhere to go?

 

One more thing, its got New fuel system from injectors to rails to pump

 

If it still has the stock ecu, I would be wary of driving it until I got some upgraded fuel management. It sounds like you are planning on doing a lot of mods so the Power FC would be your best bet for an ecu. Haltech is another great ecu, but it's a tricky install.

 

with those mods and the stock ecu, i wouldnt even drive it...you should be looking at a mid 12 with those mods. They are called APEX seals btw, just make sure not to chuck one threw your turbos..lol

 

Are those the entire computer, or are they just piggy back units?

 

you will need a ecu upgrade fast!!!! this is a must as Import Convert has stated. with all that mods you have and no ecu upgrade??? I suggest you do a comprassion test b4 buying it. there could be a great chance of the motor being blown with all that mods and no ecu upgrade and that is probaly why the guy is selling it.

good luck

 

downpipe, intake, exhaust and a FMIC is a lot of mods? Geez, i feel kinda bad because i have over 14K in my cobra, and i dont consider that a lot of mods, lol.
As you can tell, im new
lol

 

please get an ecu before another one gets chalked up under "RX-7 Unreliability" column

 

Quick Q, are the intercoolers water to air, or air to air?

 

Every intercooler except for a few custom made for the rx7 are air to air. More people don't fab their own because they don't have the time/inclantion/skill/tools. Those mods are a lot for the stock ecu because it runs off of fuel maps with a MAP sensor instead of the mass air flow sensor on your stangs. With a MAP setup the ecu doesn't know that it's getting more air and can't compensate. As far as the groove you're talking about, it would be a bad thing, because you would get bad compression and the engine would be fuct. The apex seals in a rotary are kind of like rings in a boinger, except very different and a lot more important.

 

Ahh, that explains everything. I had no clue these cars were speed density. There has to be a way to raise the fp up some, im surprized noone has made something to change this stuff.
Anyway, thanks for clarafying that, i understand why you need a diff computer now. Noone sells a MAF conversion?