I'm going to be picking up a turboback exhaust, a/f gauge and FCD this week and I was wondering if I need a Walbro and larger injectors. If so, what size injectors?

 

Unless you have done some Major turbo mods there is no need for the fuel pump and larger injectors, and before you get a pump and injectors you need to get a decent fuel controller (like a S-AFC or something).
So how much HP are you going to be making?

 

Well, I guess Ill wait on the pump and injectors until I get a standalone, front mount, upgraded turbo, and upgrade my cooling system than if its not imperative to upgrade my fuel system now. I dont really have anything done now except for the measly things in my sig, but I just bought the car this week. I'm going to be ordering a bonez dp, midpipe, and Apexi 3" single next week.

 

screw the walbro, get a supra TT pump.

 

Well, I kind of disagree about the 1st part. IMO if you are planning mods at all, one of the 1st things you should do is upgrade the fuel system. At least the pump, the injectors could be fine depending on what your mods are, but even with just a few things, most would recommend at least a decent pump..

 

Skip the pump and skip the a/f gauge unless the a/f gauge is a wideband i.e. http://www.techedge.com.au/vehicle/wbo2/wbo2.htm

But do,do something for the fuel pump. Do the fuel pump rewire http://www.1300cc.com/howto/how2/rewire.htm

I run two turboII motors with the above plus one of those weenie 2 1/2 inch downpipes and pre-silencer (Mazdatrix) , and a cat back. I don't run lean at all, although I admit with a three inch downpipe and catback the story might very well be diferent. In other words it ain't heavily modified but a touch more than what your talking about. Stock injectors.

 

first of all you shold have a aftermarket boostgugae and a EGT guage.

i hear you can put 720cc secondarys with out much of a problem, except your gonna run pretty rich when you really get on the gas, ill rather run pretty rich than blow an engine and i dont have the money for a nice fuel controler.

 

Amen to that, I learned the hard way that an FCD without an aftermarked boost guage is asking for major trouble.

 

Then you probably shouldnt be modifying your car. Do the job properly (standalone would be best- microtechs are 700$), or atleast a safc. Dont just let the motor run pig rich till the plugs foul.