YAY!! first of all my loved the Rx-7 !! he said that he would buy it if I do well in school and thats assured allready !!

now I got these little doubts that I was wondering:
the small mods Im thinking of dooing:

3" piping to stock Y and mufflers
put the stock Intercooler on the front (FMIC)

that's for starters cause Im kinda short on money until summer..
my questions are:
will that increase my boost enough that I need a anti fuel cut thing? (FCD I think :P)
is it easy to put the stock IC on the front?
should I put a new radiator on the car ?

thx in advance

 

I forgot one thing..
when is it needed to get better fuel pump and bigger capacity injectors ?

 

no replies due to bad english ?!

 

1. There will be more boost, but an FCD is always a good idea.
2. As long as you're good at piping, there are af ew threads on this do a search for FMIC.
3. You shouldn't need one until you do bigger mods.

You will not need to upgrade the fuel system until you upgrade the turbo.

 

Thx
a few more doubts:
what's the stock boost ? and how much boost is gained with the RB turbo back system?

so I don't need to mess with the fuel system at all if I don't swap the turbo? sweet! should I port the wastegate with that little mod? if not what kind of mods can I do until I have do port them?

I wanted to reach 300hp (not at the wheels). is it possible with "simple" mods? what would it take?

 

Stock boost is between 8-10psi i think. With the catback you might get to 12. It would be a good idea to port the wastegate to prevent boost creep and you might also consider getting an SAFC-II if you can find one. It's a fuel/air controller that piggy-backs the ECU.

 

where can I get one, and for how much?

once again.. THX

 

I can only find SAFC from apexi.. is that the one?

 

Yeah, Apexi makes it. There are several different versions, try to get the newest one you can with the display and the **** for adjusting.

 

Apexi = expencive =p

read it's around $300 is that right? if so I bet it costs like at least 400€ here altough we make less money things are allways more expencive here.
glad my dad is gona suport me a bit.

 

Yeah it's not cheap, but they're really nice to have. Considering the alternative is to buy a full aftermarket ECU at $1-2K I'd say it's not a bad investment.

 

I don't know, if he is going to try and make 12psi of boost he should probably get a better fuel pump and do the rewire. Don't you think. The injectors will be fine but the fuel pump won't in my opinion and like I said before do the rewire witch you will beable to find some good info on it! Very important to any tII.

 

don't mean to jack the thread or anything, but waht's the deal with the jdm spec engine, is it better becasue it has lower miles or are the jdm spec engines built better. not sure which of the two, any help would be appreciated.

thanx

 

this isn't even the same topic??? strange. Anyways there is no differance performance wise or durability wise. There are some differances but mainly in the emissions stuff and of course the fuel rails are oposite of aspec.

 

Before you do any mods, make sure it's running perfect via full tune up.

 

stuff specifically for the FC is SUPER hard to get here in Portugal.. the fuel pump is generic right?
about that rewire.. search it ??

thx for all the help till now!!

 

you can get the walbro 255 fuel pump off of ebay for like 80 or 90 bucks and yeah do a search for fuel pump rewire and there is a great diagram by nzconvertable that explanes it all.

 

can U explain what is the rewire for? Ill search but usually those things don't really explain what they do.. (that one prolly says, but I've seen some other threads that don't)

thx again

 

Do a tune up too, when u get the car. Plugs, wires, oil, all other fluids.

 

for sure!!

this thread is going to the favorites too!!

 

If you are looking for 300 hp at the flywheel, then I would suggest a turbo upgrade. A BNR upgrade (probably stage II) would do the trick. So heres what I would do:

3" Turbo inlet duct
3" Exhaust all the way back
Walbro Fuel Pump
Send turbo to BNR for stage II upgrade (they will also port the wastegate for you)
Boost controller
720CC secondary injectors
Rtek7 v1.7 ECU upgrade (the car must be an S4 for this)

This would probably be the cheapest way to that power level. Not the most tunable given the fact that it will use the RTek7 chip, but certainly much cheaper than getting a piggyback fuel controller or standalone.

-Joe

 

thx..
what's the max power with the stock turbo? (porting the wastegate myself). cause I don't know who is BNR but I bet it's US based :p

3" Turbo inlet duct - don't know for sure what it is.. I kinda imagine but never seen one.. it's the tubes that come from the air filter and then go to the IC ?

 

www.rx7store.com
www.rx7.com
www.speedmachineperformance.com
THay have a lot of stuff for the fc's. Not sure if they will ship international. But u can try or at least take a look. Stock turbo about 250.

 

you can make your own turbo inlet duct! all it is, is a piece of 3" tubing that goes from the turbo to the maf then from the maf to an adapter that you can get off ebay for like 10 bucks and then to a k&n cone filter off of ebay for like 30 or 40 bucks. The only difficult part about making your tid is that you have to have a nipple coming off of the metal tubing for an air supply line that goes to your bac I believe. Do some searches on it and you will see. If you don't have any emissions you don't need the nipple and it is very simple. Also the fuel pump rewire basically replaces the old fuel pump relay with a new one. What I noticed when I saw this was a 40psi reading on my fuel pressure gauge and never got above that however when I did this I got 40psi at idle and 50psi at wot and then it keeps rising with the more boost I have on it. Very Very Very good mod.

 

only 250hp :\ at flywheel or rwhp ?

so if I do the rewire mod I don't need to buy a new pump ?