half past twelve

I would like to run 15psi sometimes just for a occasional race. But usually just 13psi. Should I upgrade the secondary injectors to 1600cc? For about $550 I can get a fuel pump and the injectors. Do you think this would be overkill and not worth the money with my few mods?
My mods are dp,mp,cb, intake, intercooler, ecu. What do you think?

Mahjik

iTrader: (1)

That depends on what upgraded ECU you are running. So, what ECU are you using?

Trexthe3rd

Agreed, you need the capability of controlling the injector duty cycle to utilize 1600 injectors. Reprogrammed ecus are not going to do that.
It would also depend on how far you plan to take your mods. If you don't plan on going single or upgraded twins, it would be a little over kill.

jspecracer7

You could save yourself some money and get a fuel pressure regulator.

RonKMiller

You could always get a V8!

half past twelve

I will be using a PFS PMS. Fuel pressure regulator?

jspecracer7

Yes. Instead of upgrading your injectors, turn your fuel pressure up so that spits more fuel into your car when the injectors open. Your ECU doesn't car exactly how much fuel is going into your car, just how long it has to open at a certain RPM with a certain boost level. I've seen single turbo TD-06's and 60-1 turbo's run with the stock injectors and perform well for OVER 2 years without a problem or hickup.

half past twelve

Awesome, I will look into it. Is it easy to install?

Trexthe3rd

I hate to say it, but no, it won't be easy. Plan on spending at least a day on it.
When ever you work on the fuel system you'll need to release the fuel pressure, check the manual for the procedure, and be prepared to spill some fuel even with the pressure gone.
You'll need to remove the secondary fuel rail, but to get to it, the UIM has to come off, and the emission control unit as well. You may want to get a new fuel line while you're in there, but to get there, both the solenoid rack and the ratsnest has to come out (unless you have some funky wicked hands and tools).
Once the secondary fuel rail comes off, remove the stock FPR. This is where you'll need to be carefull, you will need to physically modify the fuel rail itself. You will need to tap the hole (where the stock FPR was) with the approoriate thread (standard or metric, your choice, standard is easier to find fitting for)). Install the right size hose fitting (I think the fuel hose is around 3/8). Make sure you put some plumbing tape on the threads, but don't get any in the flow path. Install the fitting TIGHTLY, you don't want to have a fuel leak later and have to go back in. Choose where you want to install the FPR (somplace you can access easily) and make the appropriate adjustment to the fuel line. Start to put everything back. It is not an easy task but it will give you some flexibility for future mods. Good luck.

Hyperite

You should really get a new one even if you do just 2ndary rail. A RRFPR can be handy in all sorts of situations where another componant may be running weak for an instant. The 1600s would be overkill for stock twins, maybe just go with 1200cc to work with the PMS (that can't handle 1600 if i remember correctly, which i might not). Just my couple of pennies.
~Tom

half past twelve

Fuel pressure regulator sounds like too much of hassle for me! I think I will just got with some upgraded secondaries, like 1200s...thanks alot!