Help with Overboost, hybrid turbo problems Options

[delusionz]

The factory TVSV has all been capped off, and as I stated in my 1st post I'm still hitting 1.2bar which is 18psi.

[lagos]

The factory TVSV has all been capped off, and as I stated in my 1st post I'm still hitting 1.2bar which is 18psi.

Have you ever checked your base ignition timing to make sure its properly set at 10tdc?
What downpipe does the car have?

This post has been edited by lagos: Aug 19, 2009 - 2:02 AM

[delusionz]

Never checked ignition timing, Everything is factory ST205 except for the turbocharger unit which is CT26.

The downpipe is unmodified, In my profile I have listed as cat deleted, this is actually untrue, i wrote that before i found out that the cat converter was part of the down pipe. there is an extra resonator after the down pipe which I thought was in place of the cat converter but its additional to it.

[lagos]

Never checked ignition timing, Everything is factory ST205 except for the turbocharger unit which is CT26.

The downpipe is unmodified, In my profile I have listed as cat deleted, this is actually untrue, i wrote that before i found out that the cat converter was part of the down pipe. there is an extra resonator after the down pipe which I thought was in place of the cat converter but its additional to it.

Then it really sounds like the problem is with this "upgraded" ct26. You mentioned that you saw the wastegate move at 10psi. Its actually supposed to open at 7psi from the factory. This extra 3psi along with a full 3in exhaust is what could be causing your issues. Who knows what was "upgraded" on that turbo. The wastegate arm could have been bent during install, or upgraded to a stiffer one (i think fendsport offers this upgrade) and on a ct26, its not a good thing.
If I were you I would buy a used ct20b and install it on there myself. It would not only fix your problem, but gain you a good 30-40hp that you lost by having that turbo installed.