alright guys ive had several different opinions on what i should do so i want to hear from some of you who have actually done this on your cars, I have an 87 turbo II series 4 and i put on a racing beat 3 inch turbo back and fcd, when i put them on i immediately blew my engine, i first thought that it was my injectors, now i have a jspec motor im getting ready to drop in and am wondering what fuel mods i need to get to run this 3 inch exhaust safely, this is all the mods i plan to do for a while since i am a student and don't have an income so i am wanting to spend as little on fuel mods as necessary but enough to have a safe and good air fuel ratio for my car to be making its peak power, what mods should i put on? tell me what you guys think?
thanks

 

first thing you need is a boost gauge. 2nd is a bigger fuel pump. pick up a walbro for around $120

those 2 you should be good till 10psi. with the stock intake I don't think you will hit that. maybe you will. that's why you watch the boost gauge. if it goes past 10 let off.

I would pull the turbo off and port the wastegate before the engine goes in. that will solve everything..

 

thanks, does anyone else have any advice

 

Just to reiterate what Scott said, get a decent fuel pump (it's the weak link, not the injectors), get a boost gauge (it's very important you know if you're overboosting), port the undersized wastegate (look at fitting a bigger flap too), and leave stock intake alone. You might get away with replacing the airbox with a pod filter (make sure you install a heat shield and cold air intake too) but leave the turbo inlet duct alone. If it boosts too high put the airbox back on.