where do you guys reccomend i buy injectors and what type
ive got a streetport 13b turbo
im not shooting for anything more than 250 hp on the stock turbo.
what injectors and where are should i buy them?

 

How much boost are you intending to run? Typical setups with the stock turbo at 10-12 psi use 720cc secondaries, an FD or walbro fuel pump & an Rtek 1.7 ECU or SAFC fuel controller + fuel cut defender.

 

doesn't the Rtek 1.7 have an FCD built in it's program?
But ya,Rocket is Right,you can't just upgrade injectors without doing anything else to the fusl system.
it's like wiping Before ya Poop.it doesn't make sense!
Rtek is good Easy Ecu to slap on and go.It will make good power for the dollar and you don't have to Program it.
If you go to an Aftermarket fuel system like a Haltech,PFC or a the like,then you should really know what you are getting into.It can Get expensive but it can give you Bigger power.

 

Yes, I just meant either get an Rtek, or use an SAFC with an FCD. The Rtek is the better route though.

 

well im not sure how much hp the engine makes right now.
my goal is 250.
i want to keep the t2 fuel pump ecu etc etc...

 

You can't keep the stock pump or leave the ECU stock, if you want to run more boost than stock & use larger injectors. If you stick larger injectors in, the ECU will still think they're 550cc and dump fuel into the engine. The stock ECU will also cut fuel at 8.6psi of boost. 10-12 psi or so is about the max you should run on the stock turbo, and it has potential to get you around the 250 whp mark.

 

You will almost certainly need to add fuel in order to get to the 250whp range. So, as RR88 says, to support the larger injectors you will need a more capable fuel pump and something with which to tune the system, be it an AFC or Rtek chip.

 

alrite. so what if i just get the rtek 1.5. a set of 550cc injectors. and leave it at that. along with the streetport what am i looking at realistically hp wise?

 

1) An Rtek chipped ECU does not add power. Increasing boost does.

2) 550cc injectors are stock, so you should already have them.

3) A streetport with the stock turbo is not really going to do anything for power either. It will change how the turbo behaves, and actually make it less efficient at high RPMs.

I think you're missing the point. Changing the fuel pump is very easy, and the first thing you should do when attempting to get more power out of the engine. Larger injectors give you headroom so you can increase airflow, and not run into the injectors maxing out at higher power levels.

 

okay so how about this.
550cc primary
720cc secondary injectors.(rc engineering brand.)(( btw am i supposed to use saturated or peak and hold type?
and a walbro fuel pump.

 

Throw in the Rtek 1.7 chip, and you have my original suggestion. Walbros also have the side effect of driving up fuel pressure at idle/low throttle, so you will end up running rich under those conditions. The variable resistor can help a little with idle mixture, but it won't be exactly like stock. You can get a used FD fuel pump in the 3rd gen classifieds for about $20. Both will be more than enough for an engine with the stock turbo.

If your car is an '88, as the profile says, you have high impedance (saturated) injectors. Almost all aftermarket injectors are low impedance (peak & hold), so if using them, you'll need to wire in 6-10 ohm, 10-20 watt resistors on the secondary injector wires. The easiest place to do this is at the ECU. Cut 2 wires, and add in 2 resistors.

 

well i actually found these injectors and was wondering if i could use them btw thanks so much for the holp youve been a great deal of help
http://www.rceng.com/Saturated-Injec...750-P63C6.aspx

http://www.rceng.com/Saturated-Injec...top-P64C6.aspx

and ill try to find an fd pump.

 

RC injectors are good, and the 750cc vs. 720cc difference won't really be noticeable. You'll just get a little bit of extra fuel (4% more) under moderate to heavy throttle, which is actually a good idea anyway. You'll need the denso style injectors, which are what your second link shows.

 

thanks again. now i just gotta sell my old tach and the t2 fuel pump i bought and look up that fd pump.