MotorMouth
Member
Well for the past few weks I have been having problems with the truck making steady boost. I have just recently gone through all of the ignition parts and checked the adjustment on the waste gate arm. Still the truck would jump to 10psi and then fluctuate up and down until it got near 14psi and then on 2 to 3 shifts spike to 16 and 17psi.I was also getting 8 to 10 degrees of knock retard. It was kind of frusterating. Today, just on a whim I decided to take off the ATR exhaust and fix a rattle that I was having. Well, lo and behold I happened to look into the cat and it looked like a bomb had gone off in there! Off she came and I decided to let her have the old hammer and pry bar. I bolted the whole mess back together and took her down the road. 
WOW, boost is rock solid!! It goes right to 15 and stays there all the way through the gears. I also am having only 1 to 3 degrees of knock retard(three at shifts). I am happy as hell!! I was hesatant to put just the gutted cat in because I have seen storys of people having horrible boost control after gutting the cat. When I had the turbo off to rebuild it I did port the exhaust housing to match the exhaust manifolds and did port the waste gate hole just a little. Don't know if this helped but the truck goes like hell now! :drinking: Horse power rocks!!
Brian
WOW, boost is rock solid!! It goes right to 15 and stays there all the way through the gears. I also am having only 1 to 3 degrees of knock retard(three at shifts). I am happy as hell!! I was hesatant to put just the gutted cat in because I have seen storys of people having horrible boost control after gutting the cat. When I had the turbo off to rebuild it I did port the exhaust housing to match the exhaust manifolds and did port the waste gate hole just a little. Don't know if this helped but the truck goes like hell now! :drinking: Horse power rocks!!Brian
