Rx-7 FC Questions

[PhyschoMP3]

I'm thinking about getting a Rx-7 FC this summer as a project car. And goin Initial D style on it but does the FC have problems like the new Rx-7's or does it have more. Does it have the bad seal thing goin on too? Also, Is it hard to turbo an FC to 300 whp?? What do you do to a rotary to "Bullet Proof" it? Because you cant get forged pistons cuz' you dont have any. So many questions aye aye aye.. lol Well let me know thanks...

 

[MP3skaterNC]

the make a factory turboed fc, look for Turbo II's , and no its not hard, to get 350 from the rotary, Fast and Clean in raleigh is going to to my engine with with a street port, and 3mm apex seals when i get my fc, which will be around mid summer, and it should have close to 300 motor alone, so think about the possiblity's with the boost. mmmm... turbo II. look for a 10th AE one if you can find it. but they are getting rare.

 

[LinuxRacr]

Yeah, get the 10th Aniversery Edition Turbo II if you can. My friend has one, and it is fast.

 

[PhyschoMP3]

Is it faster than your car? and spoolins turbo mp3?

 

[PhyschoMP3]

Hey common Linux reply or someone with turbo. Would it be cheaper and easier to make a FC faster than the Mp3s? and does FC's have a bucha reliability probs. THanks.

 

[kep0ne]

you do not have 300hp, motor alone. sorry thats just not possible with a 13B unless it has boost...the most you'd get normally aspirated with a N/A 13B is maybe 250hp.

i bought a 10AE earlier last year. all i have to say is, if you plan to get an FC, make sure you include a full set of tools in y our budget. you WILL be performing most of the work on the car yourself unless you have deep pockets, as good rotary mechanics are hard to come by.

that being said, the only way to mod an FC and ensure engine safety is FUEL. fuel is your friend...you do NOT want to run lean and detonate on a rotary. you can get 3mm seals, they can help...but generally they're seen as a bandaid for bad tuning...but they dont hurt anything.

reguarding adding a turbo to a N/A FC...you're better off buying a Turbo II...as they already come turbo'd. adding a turbo to a N/A costs way more than you'd think.

so yes...a recap. buy tools with your FC. purchase a haynes manual or FSM. be prepared to get dirty. and yes, i love my FC more than i love my MP3.

 

[PhyschoMP3]

Yea I have a MP3 and its so damn slow. I'm a mechanic right now but I dont ever work on rotary's so I've been reading up on them. Thats exactly what I was looking at the Anniv. Edition. SO do you need to do a lot to crank up the boost on a RX-7 because they dont have pistons so you cant really get forged stuff. I saw a thing on a 13B carburator or something. I've been inspired by intial D. And the other car I was lookin at for a project car is way too expensive. lol... So yea thanks for the good post have you done anything to your FC

 

[kep0ne]

reguarding boost...as long as the fuel is there, you can up the boost. the 13BT engine was BUILT for boost. just make sure you have enough fuel.

right now, i have a downpipe/presilencer/dual apexi N1s, a walbro fuel pump, cone filter, home depot tid...running 8psi right now. the car is considerably faster than the MP3, especially once im in boost.

heres a pic of my car.

 

[PhyschoMP3]

Tight car just like the one in Initial D... Hey how much does a good condition 88' 10th anniv. FC cost???

 

[ZoomZoomH]

don't bother with trying to conver a NA 13b to turbo, just get a TII and go from there.

 

[LinuxRacr]

reguarding boost...as long as the fuel is there, you can up the boost. the 13BT engine was BUILT for boost. just make sure you have enough fuel.

right now, i have a downpipe/presilencer/dual apexi N1s, a walbro fuel pump, cone filter, home depot tid...running 8psi right now. the car is considerably faster than the MP3, especially once im in boost.

heres a pic of my car.

Even the N/A's are faster than a stock MP3. I know from experience.

 

[Mazdaspeedgirl]

Yep. the peeps here are right. Find a Turbo II fc and it will be much cheaper than trying to turbo the MP3, and more hp for the $$$. 3mm apex seals, yes. And we have several TII's in the club whose original engines have over 100,000 miles. Plus the fc is just bad ass looking when you keep it up.

 

[Mazdaspeedgirl]

oh yah, the fc guys on the rx7club.com forum are very knowledgable on those guys.

 

[Mazdaspeedgirl]

The fc is very interesting to me. It kinda began the RX-7's step up to a more expensive GT car, as opposed to the affordable, simple fb (1st gen, 1979-1985). The fc's styling took on a European look, much like the Porsche's and Lotus' of it's day.

 

[kep0ne]

THE RX-7 CLUB KNOWS ABOUT YOU!

 

[kep0ne]

Tight car just like the one in Initial D... Hey how much does a good condition 88' 10th anniv. FC cost???

dont get into the hype of the 10AE...its really no different than any other T2. you can get one in decent condition for about 2-3 grand.

 

[MP3skaterNC]

yea, i wasn't really sure about the 300 thing, just repeting what my friend from fast and clean said, oh well, i kinda figured that it wouldn't be that high.

 

[ZoomZoomH]

THE RX-7 CLUB KNOWS ABOUT YOU!

dammit i was gonna say that!

 

[twiztedjeckel]

get over the 10AE thing. as special as a car as it was it wasn't at the same time. no different engine or tranny or suspension mods as apposed to a normal TII. The Rotary engine is fairly simple and easy to understand if you step back and take a look at the big picture.

there's only a couple moving parts involved and the rest is tuning. make sure you don't **** with the timing and and that you have enough fuel getting through the car. over revving will increase your odds of going through Apex seals so you don't want to sit there like a hotshot trying to impress your friends smoking the tires while bouncing the needle off the redline. try and find yourself somebody locally who owns and works on their car so you have something in common. the engines in all 7's were fairly similar. if your going with an FC you won't be dealing with the "rats nest" like the FD's have. but i won't even get into the issues the FD has had.

due yourself a favor and buy atleast a downpipe and maybe some other exhaust stuff when and if you get a TII. you'll need an FCD though so don't just go out and start modding before you think about your ECU. its an old computer so the new codes it will be seeing its not exactly going to like or deal with the best. and you DO NOT want to hit fuel cut.

as far as buying goes. get a compression test done before you do anything. if the possible seller won't have one done, walk away. check for your normal wear and tear things like you would with any car. make sure there's nothing leaking either.

1st gen FB's were the only 7's that had carb'd engines.

hmm, its getting late so i think thats it for me for tonight. any other questions? oh yeah, by this point once everything is done correctly you'll be know as a flame thrower around town

oh yeah. N/A FC's can,will, and do get over 300hp even 300 to the wheels. its called PORTING and it does wonders for engines with triangles.

 

[PhyschoMP3]

Thanks for all the help guys i went down and got a book on rebuilding an FC. Its kinda cool cuz' one of my friends has the NA fc and wants to make his faster. SO now I know about this "porting" and stuff. SO yea. I'm also gonna have a chance to help him work on it next week. So one last question what would you guys do if you had like oh 6-7,000.... Buy and upgrade a TurboII or just buy spoolin stage 3 for the MP3? Thanks a lot guys. Also, on that porting thing how expensive is that and who would port a 13B??? And are 13B NA's good at handling like a 50 shot of nos? thanks