I recently built a rear turbo setup on my 93 trans am. I've been driving it around for a few weeks just to sort the bugs out. On a 7psi wastegate spring its opening at 4 psi. No big I'm ok with that being I haven't done much with the fuel yet. I see the afr's go to 12.3:1 at 4psi with stock injectors and pump. I bet it still added around 100hp at the flywheel. It pulls much harder now. I went to upgrade my injectors to a bosch 42lb (looks like a ls1 style injector) it has a skinny body on it with a ev1 style connector on it. I noticed when I lined it up next to the stock injectors it was about 3 mm or so shorter tan the stockers. I thought well thats not great but it might not matter. I was wrong! I put them in and started the car. It ran fine for a min or two then sprug a crazy leak right at the fuel rail when I revved it a bit. Moral of the story make sure the injectors are exact. I just ordered a new set that looks the same as the stockers (fat body on them)and new injector retainers. . Hopefully these will work. when I get the fueling right I will start upping the boost to 7-9psi.

 

Good catch, that couldve went south fast. I'm looking to build a rear mount for my 95z to keep the engine bay looking mostly stock for CA emissions. Do you have pictures of your setup?

 

here are some pics of it

 

Looks pretty sweet.. Have you considered a aero tray under the front with a NACA duct(s) in it,, ?? Could help pull air through the intercooler.. And help suck air from the engine compartments..

 

This is actually some older pics from when I first put it together. I did put some ducts and mesh in the front now. I'm waiting for my injectors to get here so I can get it out for a drive before the snow gets here. The intake temps seems to be good when I drove it before but i did notice the intercooler was getting warm to the touch. I think the ducting will help it cool a bit better. I'm kinda at the mercy of shipping and weather now to get it dialed in a bit before it gets put away for winter.