my 88 turbocoupe

hey everyone im new to the board but im wondering how much horsepower I make with my mods below I want to make about 400 hp and what is the best way to make more power? I have planed a stage 3 ported big valve head from boport with a cam probably stage 3 cam, hx 35 turbo, bigger fuel pump and injectors

If you haven't upgraded the injectors then not more than around 280-300

You will need a way to tune if you want to get to 400hp. Below is from the FAQ's on Stingers' website (Stinger Performance Web Site)

What mods do I need for "X" hp?
All combos are assumed to be utilizing the best "stock" setup which includes 35lb injectors, large vam, 87-88 ECU, stock or ranger roller cam, and most importantly, a good tune.

-Stock engine, stock intercooler, no significant mods, 15-20psi will produce roughly 170-215rwhp.
-Above setup plus cone filter, 3" exhaust, 15-20psi will produce roughly 200-245rwhp.
-Above setup plus front mount intercooler, more timing/boost, elevated fuel pressure, 255 lph fuel pump, ~22-23 psi will produce roughly 265-280rwhp.
-Above setup plus ported or gutted intakes, mildly ported head, ~22-23 psi will produce roughly 275-300rwhp.
-Above setup plus professionally ported head flowing 215+cfm on the intake, extremely high fuel pressure, ~22-23 psi will produce roughly 275-330rwhp.

Below requires upgraded injectors, piggyback ecu tuner or stand-alone ecu, and preferably conversion to mass-air along with race fuel or alky injection.
-Stock engine, turbo header, professionally ported head flowing 215+cfm, cone filter, 3" exhaust, 255 lph fuel pump, ported/gutted intake, large aftermarket cam, ~25-30 psi will produce roughly 350-450rwhp.

Below requires many unmentioned items plus a standalone EFI system or a very firm grasp of tuning a piggyback system.
-Above mods plus Upgraded Rods/Pistons, 225+cfm iron head or Esslinger Aluminum D port head, ~25-30 psi will produce roughly 400-525rwhp.
-Above mods plus Esslinger SVO head, Stage III or larger Bo-Port cam, ~25-30 psi will produce roughly 500-600rwhp.
-Above mods plus Esslinger ARCA head, Stage IV or larger Bo-Port cam, 2.65L+ stroker engine, ~28-35 psi will produce roughly 650-800rwhp.

BTW - post some photos of the car!

idk how to post pictures on here lol but I know I need a tuner what kind would you recommend? besides pimp by stinger

idk if this will work but here are some pics

http://s1282.beta.photobucket.com/user/J...ort=3&o=60

http://s1282.beta.photobucket.com/user/J...ort=3&o=55

http://s1282.beta.photobucket.com/user/J...ort=3&o=54

Hey welcome to the forums and great looking bird! As for tuners other than pimp, there's megasquirt which is pretty involved(wiring and such) and there's Quarterhorse which lets you retain your factory computer. It's got a learning curve too, but is nice once you get the hang of it. Go speed density and use the VAM as a door prop.

thanks man and are they pretty easy to tune? or would you recommend taking it to someone who does it for a living?

Just out of curiosity - why the aversion to the Pimp? It's the easiest option out there.

I just don't see paying 600$ for a tuner

don't get me wrong I wouldn't mind having one just they cost so much