Hey guys, for next season my goal is to reach well-over 300WHP-320WHP on my FD, and I want to make sure I have the supporting mods to achieve this. After reading a stockpile of threads on this particular topic, I've compiled a list of mods that should help me reach my goal or at least I think.

Here are the mods:
Apex'i PowerFC + Commander Kit
SR Motorsports Custom Intake System + KN filters
RX-7 Store Polished Intake Pipes
HKS SS 3" Downpipe
SS 3" Resonated Midpipe
ST.Mays "Shotgun" Dual Tip Cat-back
GReddy Standard Mount Intercooler
GReddy Intercooler Pipes (3-Piece)
Y-Pipe + Crossover Pipe
Koyo Race Radiator
HKS Twin Power Ignition
NGK Plug Wire Set
NGK Spark Plugs Leading: BUR7EQP(9s ?) Trailing: BUR9EQP
GReddy Pully Kit
GReddy Profec Boost Controller
Petit Aluminum AST Air Separator Tank
Clutch - TBA, need help choosing
Nippondenso Supra Fuel Pump
RP Fuel Filter
RP o2 Sensor
Primary + Secondary 850cc Fuel Injectors ?
Tune to 11-12 PSI on stock twins

Feel free to add to the list if I'm missing anything important !

Mind you that my FD is completely stock except for the ABV,the cat-back,and couple of gauges. In terms of motor - motor is in great shape except (some of you know) I have a minor boost leak which will be addressed eventually haha.

 

You should reach your HP goals with the mods you have listed along with a good tune and a generous dyno

 

11-12lbs of boost might be a bit low. Like Jim mentioned you might get there with a generous dyno. If you want to do it with twins then you would need to go higher boost. That means larger secondary and maybe replace the stock twins with bnr's.

 

How much boost can I run on the stock twins without compromising reliability and life ? I'd like to stick with the stock twins, if I can safely run higher boost with the stock twins I'll up it but I've heard 12 PSI is pushing it. What size injectors do you recommend ? Or what is ideal for the set-up ?

 

stock 550cc primaries.
stock secondaries enlarged to 1200 or 1300cc are common. That should be enough for fuel with the Supra pump properly set up.

You could run 14psi on stock twins. They might not last as long but they're easy to find. Should be good for at least a couple years if they're in good condition from the start.

Run BUR9EQP all around.

IMO the Greddy pulleys are not that great and they market it as 'airpump removal necessary' because they want you to buy their belt.
Buy your own belt sized correctly to keep the airpump. That way you'll have no trouble swapping in a cat and passing Drive Clean when the times comes. Also helpful if someone calls you in for shooting flames. . .

 

Two big bottles, end of story!

 

Oh and I need them by tonight, Harry

 

^lols

Thanks for your insight Sonic. So you're suggesting that I keep the air pump and just buy a sized belt to run from the alternator to crank only- makes sense, and it's saves me some money. But I don't get as to why it'll be helpful for when someone calls me in for shooting flames ? Perhaps it's what cops look for to indicate that you have a MP or not?

 

If the motor is stock, there is no need to upgrade fuel injectors if they aren't clogged. Stock injectors in good condition can easily do the max what I would consider "reliable" for the turbo's which is 14 PSi (and thats really a max, I would suggest 13 PSi for most max). Of course you can run more and make a tad more power but don't expect the twins to last long. Upgrading fuel pump is always recommended.

However, a good street port will run out of fuel with stock injectors around ~11-12 PSi.

A key component to maximizing your setup is running open exhaust without a cat. Your goal is modest and should be attainable but more boost might be required. Again, what you make on one dyno won't be the same as others, its just a number.

thewird

 

That's just nasty

 

why the o2 sensor if your running midpipe? I say run an airpump and forget about the greddy pulley.....If you still want the greddy you can have mine for $100 in a box with belt and all. Spend your money on a good wideband and boost gauge if haven't got it yet.

go 1300s and supra fuel pump. your turbos will crap out and would likely want more power after.

Also Racing Beat is the best catback. Unless you like loud cars....

 

If you're forced to retest emissions you'll be able to get the car ready in 1 hour. I don't know if they can force retests but who knows.

 

you always have to be careful where you go with your car if you're not emissions legal 100% of the time. For example, any given weekend in Wasaga Beach, you're likely to find the OPP and their mobile testing setup. They also have a tech with them that knows what they're looking at when they check out your car with regards to airpump, lack thereof, evaporative emissions, PVC routing, etc. Unless you're an *** to them, they'll often write you a checklist of stuff you have to fix, and then issue a summons to an e-testing & inspection site a week later.

The only reason i mention it is because my friend and mechanic for my daily stuff was the guy hired by the province to train the roadside emissions officers and their techs, and he did this for years. from what he told me though, there are only a couple of emissions teams in the province though, so chances of running into them are slim.

 

I thought I was gonna need it but apparently I don't if I go MP. From what I've read and heard - it actually provides some positive benefits, such as less load on the engine during acceleration, smoother gear shifts - but that can just be a placebo.

As for the exhaust , I'm sticking with my St.Mays; they're pretty quiet during idle - and mediocre throttle --quieter than single canisters and slightly louder than the RB -- when WOT it screams, and that's what I like. The only thing loud about my exhaust CB is the way it looks, but the flow and sound control is great.

 

thanks guys for your insight. I'm kind of overwhelmed with the injector set-ups though because a lot of people are giving me different size injectors to run. To be more in-depth , I'm summer DD the FD, and would like a little bit of fuel economy(if that's even possible). Which fuel injectors should I run based on that? Or a better question would be, does the size of injectors even co-relate with fuel efficiency or does the tune ? lol, sorry if I ask to much questions.

 

You don't need fuel injectors for a stock engine and stock twins. End of sillyness...

thewird

 

Agreeed ^^ and you will reach close to your power goals....over

 

My comment on the injectors was for if he wanted to run more boost. In the 15+ range. He would need larger injectors and should likely replace the twins with bnrs at that boost level.