| Well, here is what I know. After all the other things I have done (colder plugs, Motorvac top end cleaning, found all the air leaks and fixed the recirc valve) I took it out today and while boosting it went into safety mode. I actually watched the needle on my Autometer gauge drop from 11ish to 6. Not happy... The timing was checked by my mechanic about a month ago. He said it was "good". I checked it today after I got home. It was about 16-16.5 degrees. I reset it to 14.5-15 degrees. I believe Jim Wolf has stated that a modified Z TT should be set to 13 degrees BTDC. I have a JWT ecu, boost jets set for 13.5 psi, Z1 smic's, Stillen cat-backs and a JWT pop-charger. I believe that counts as a Stage IV (per Stillen) so I guess that meets the definition of modified. The timing was rock solid, no wiggling around (unlike my Pathfinder, which was all over the place). I have not checked fuel pressure yet, my mechanic did and said it was good. So I will check it tomorrow. Brand new fuel filter- installed it at the beginning of August. Checked my CTS at the same time, my wife has no idea I was using the kitchen to boil water for dipping a dirty car part! It was all to spec. Hoping it was just the advance on the timing... but I will know more tomorrow when I check the fuel pressure.
|
