Mushiki

Everyone,

I have a '91 NA FC, 55k miles. Works like a beauty, I am only having some TPS issues.

I was wondering, with this type of FC, is it possible to achieve power figures between 300~350hp?

What modifications would I have to perform? Obviously I would have to get a turbo, intercooler, etc -- but, what would you recommend? Should I keep the NA rotor housings or should I get turbo ones? What about SAFC and other electronics mods?

If you have anything you would like to recommend/suggest, please do so -- I would love to have as much information and details as possible.


Thank you for your time.

Regards,
~D

scathcart

Add a 150 shot of nitrous.
Done.

arghx

iTrader: (3)

buy a Turbo II and do a turbo upgrade. Don't rip apart such a clean car, and besides, there is a LOT of stuff you need to do to make a nonturbo make that kind of power

FelixIsGod29X

iTrader: (50)

^^^^^^very true. Your better off selling the whole engine with harness and ecu then buy a T2 engine and tranny and work from there. If your S5 n/a only has 59k then i Would say sell it now before mileage goes up and value goes down.

p4nc7

iTrader: (1)

Buy a T2, and do some small upgrades, it'll be cheaper and easier.

SuperRotorMan

yea but on a T2 before you can up the boost much more than stock you need to do your fuel systyem, whick means fuel pump, maybe some 720 or 750cc secondaries, and either a SAFC2 or some other sort of piggy back ECU to controll the larger injectors...

peachykeenwight

Do it right the first time. You'll save yourself so much money and time in the long run- trust me. I tried to make it work, and while it's a lot of fun and a good learning experience, if you're trying to be economical (if that's possible with a '7) in making a big power number the best way to do it is to save up and do everything right the first time.

Sell your N/A, pick up a TurboII with a blown motor for dirt cheap and rebuild everything, and then go from there.

Another piece of advice: stay away from piggyback ecus. The stock ecu is worthless when it comes to making power, even with an RTek chip or any of those joke fuel controllers like an S-AFC. BAD IDEA to run an S-AFC on a turbo'd car and rely on it to manage your fuel. I guarantee that you'll want more power once you hit 350rwhp so you'd might as well get a good standalone before anything else.

Mushiki

Problem here is, I live in Argentina.

In other words, there are only 3 FC's in this country, none of them Turbo -- and importing a T2 engine would be as expensive as buying an FD.

Selling my S5 NA engine would be pretty impossible as well, since, like I just stated, there are only 3 FC's down here. I doubt there would be any kind of interest for one.

I would like to know, why is it that complicated/impossible to get that kind of numbers out of a NA S5?

TehMonkay

iTrader: (-1)

So if you import an engine why would it cost as much as an FD? Do they tack $6000 of tax onto the engine after its arrived?

I'd say buy a jspec and rebuild it(about $2k with tranny) and swap it in with a megasquirt and then you would probably have to hunt the forums for a driveshaft rear end and axles.

Or you could go semi p-port with nitrous and that would get you that much power. But streetability would suck.

SuperRotorMan

Can i get a halleula for J-Spec?!

Aaron Cake

iTrader: (1)

If you want to make 300-350HP out of an S5 NA, you can do it. It will take a full bridge port (or peripheral port for ~350HP), wide open exhaust (LOUD!), custom intake manifold and a standalone EMS system with a good tune.

sidewayz_FC

osaka motorsports sells 13bt's with harness and tranny for 750. probably the cheapest your gonna find one complete.

www.osakamotorsports.com is the link if you wanna check it out.

bmwrx7man

iTrader: (2)

hmm that site is not workin^^

sidewayz_FC

my bad its osakajdmmotors.com

platinumyama32

wow. 750? has anyone dealt with these guys before? reliability?? i just almost bough that right now. hahah

Sideways7

iTrader: (7)

And thats FLYWHEEL horsepower. The most RWHP I've seen from a p-port 13b is low 300's. Now that I think about it, Judge Ito has probably gotten more, but thats like comparing your base firebird to a alcohol funny car.
The reason its hard to make those kind of numbers out of an NA FC is that its just not feasaabe. Thats like getting a Honda Civic and saying "I want 350 HP without any kind of forced induction." Sure, you can do it, but you will spend a phenomenal amount of time and money and have a pure race engine that is basically undrivable on the street. The other thing is that this takes a standalone and highly advanced engine building knowledge, and I doubt there are any rotary tuners in your area than can even achieve this.
What I recommend is that you just rebuild it and give it a good streetport. You can get a S-AFC piggyback (fine for an NA) and you can probably get 175 or so at the wheels.
If you really want to, you can by all of the stuff to make it a Turbo. DO NOT, I repeat, DO NOT use osaka whatever it is that the other guy linked to. They are well documented for screwing over customers. The only reliable one I can think of is corksport.com. Hell, you could probably just import a damn car from Japan after all the time and money you are going through.
If you don't want to do that, sell the car and get something else, because you just can't get those numbers out of an NA 13b.

sidewayz_FC

hoofhearted aka bob has one right now for sale, he has compression tested it so you can talk to him, be got it as a trade from a goodfriend of mine. i personally didnt see anything wrong with it, hes running the tranny in his car right now. turbo had no shaft play and everything harness/intercooler pipes/tranny were all in really good condition.

FCKing1995

iTrader: (3)

Sometimes you will get lucky and get a good one. But alot of the time you will get one with dented oil pan, broken sensors, beat up manifolds, worn out accessories, missing or broken parts, ect. When you go that cheap, your playing a risky game

Mushiki

I was just tlaking with a couple of friends about importing an engine, and seems like it is pretty impossible -- local regulations don't allow you to import used engines -- so it seems like I should work with the 13B I currently have, installing a turbo, etc -- this is why I ask, again, what would you guys recommend?

TehMonkay

iTrader: (-1)

Have it shipped to someone else and have them disassemble it perhaps?

Seriosuly it may be easier if you dont have many resources there.

What if the engine was rebuilt, if you arranged the engine to be shipped to a shop somewhere in the US and it was sent back to you as remanufactured would that be illegal?

How do they know there is an engine in the crate anyway?

Mushiki

Having it sent abroad for modifications would be kind of a mess considering this regulations -- I would want to lose my 13B just because the guys at customs down here are retards.

How do they know? They give a **** about everything, they will open the crate to check what is inside, to make you pay taxes for importing stuff, be it a huge crate with an engine or a small envelope with a shirt.

Aaron Cake

iTrader: (1)

There are no turbo kits for the 13B NA engine. If you want to turbocharge it, you need to do it yourself. Check the FAQ for information.

87 t-66

iTrader: (133)

someone should start producing one. i bet there would be some seious profit from that project!

FeatherTheClutch

Is there really only 3 Rx-7's in Argentina?

Aaron Cake

iTrader: (1)

It's been tried, tried and tried again. Generally doesn't work out since no one is willing to pay....I've run the numbers many times and it would cost about $2000 just to produce the kit...Remember it's not just the turbo, manifold, downpipe, intercooler and pipes but also an upgraded fuel pump, injectors, some way to control them, gaskets, hoses, clamps, quality instructions, hardware, technical support, etc. etc.