Ok,so one of my cars is a 87 Turbo II.I have a greddy blow off valve,turbo timer,boost control,custom intake,Kevlar race clutch. Ive already put the money down a hks down pipe,HKS Cat back Exhaust,and Im going to UPGRADE to a BIGGER Turbo (THIS IS HAPPENING IN ONE WEEK!!),and a new fuel pump,What are some more mods that I need to or can do??Who makes chips,Throttle Boddies,Intake manifolds,etc... Also, What kind of HP can I expect from this (I know I left no turbo specifics,but just a ball park figure),what kind of 1/4 mile.What should be the next upgrade.I want this car to be a sleeper *** kicker.it only has 80k miles on it. Thanks for helping me out
adrian

 

Well since you didn't mention it, you will need a Fuel Cut Defenser. Otherwise with just the DP, and Catback you will hit the Fuel cut, which I believe is 8.6 PSI. Rotary Peformance sells them pretty cheap. Just search the Forum, and check what other peoples mods are. This will give you a good idea on what to do next. BTW what kinda turbo are you putting on?

 

You will need:

FCD
Bigger injectors
Something to control the fuel(S-AFC)
Maybe something to contol timing

1/4 mile and HP numbers depend greatly on the turbo you will be running, it is impossible to estimate without this info.