Why am I boosting at 12?, Still stock, thought max at stock was 10... Options

[Green_MachToy]

I had a stud in the Exhaust manifold break at the head. In repairing it, my car is now pushing 12 pounds. I still have the stock ecu, no boost controller (until tomorrow), no FCD (stock max is 9.7). Now to give you a few more specifics: A friend of mine put a plastic t in my lines to trick the wastegate into allowing more boost. This caused me to reach 10 (probably 9.7, but meter isn't that detailed). In doing the repair I took the t out. I also found that my Cat was bad and took it out as well (it will cost me $300 to fix later). Replaced a crush gaskit after the stock down pipe to the 3" exhaust. Got everything together at approx 0130, and took it for a test drive. Found a couple of vacuum lines had worked themselves off of the stock BOV. Fixed those, and off again. Ran at stock 7 pounds of boost. Placed the t back in, ran at 10. Next day...got in the car got on it to pass a car...14! Took the t out, down to 12! It does seem to creep. When I hit the gas, it will jump to about 8-10, then steadily walk up to 12 as the rpm's increase. Did my wastegate go bad? I was thinking the increased flow in the exhaust from having no cat may have been the problem but it ran stock the night I did everything. Any ideas?

This post has been edited by Green_MachToy: Dec 5, 2005 - 8:34 AM

[lagos]

http://celicatech.com/forums/showthread.php?t=10155

read that to check your cel codes. you were probably put into low boost mode becasue of the cel.

youve had the car for a year now running only 7psi? why didnt you read up more about what the engine can do and turn up the boost to what it should be run at?

adding a 3in exhaust and gutting the cats will increase your boost.