Been searching all day and decided it was BCS and replaced with a Forge BC. Went out for a test drive and no change. To test the BC I pulled the vaccuum line from the WG. Still no change. At this point Im beginning to think it may be a stuck open WG. The car has no power and literally builds boost up to 11psi at 6500 rpm.
This would makes sense if the Wg is stuck as no flapper would be there to stop exhaust flow.

Input or ideas?

 

have you tested to see if your wastegate arm is moving up or down? ...u can apply 10/12 psi to the nipple of the waste gate and the arm should move freely.

 

First - do a boost leak test at the pressure you want to run. Here's an example of a DIY tool you can use to do this http://www.vfaq.com/mods/ICtester.html

Second - fix all your boost leaks leaks.

Third - pull the heat shield off the exhaust mani and take a look at the actuator. Grab the arm and see if you can move it. If so your wastegate is not stuck.

Post up where you get to so we can help diagnose your problem.

 

I just came from Dsm's and rx7's. BLT has been done the day i bought the car. Grabbed arm to day and it feels solid no wiggle at all. That looks exactly like the one i built years ago lol.

 

Thats my next move. I dont have a Air compressor so i will have to go somewhere that does.

 

So, you just purchased and installed a Forge UNOS MBC, right?

 

Yes. I think that is the BC name. I found the problem. Took off front heat shield for outlet pipe and the cotter pin that holds the WG arm on wasnt there. BAd news is that the pin broke off in there. Any idea on how to get it out? I was thinking pb blaster and a self tapping screw.

 

Which end of the cotter pin broke off? Is there one end, either the looped end or the split end sticking out the hole on the other side of the hole in the pivot arm peg? Got a pic of the carnage?

 

PB Blaster is a good lubricant. So, is there any piece of the cotter pin visible? Can you get a set of those dinky needle nosed vise grips onto any of the wire of the cotter pin? Maybe try a hardened punch of the suitable diameter. You could always drill it out using a bit the same size as the diameter of the hole.

 

No its broke off flush. May just have to use a e-clip to hold it until I can get it off. I really dont want to strike it to hard.

 

Your best option is to drill out...side drill if u have. Protect radiator with cardboard. They sell cotter pins in different sizes.

 

check the cat.my money is on a blown and clogged cat

 

Thats what im gna do. Have to use my angle drill.