[*]car smoke white/black/blue after going from wot to closed throttle. It takes a few seconds for the smoke to develope. thinking the white could be unburnt gas (no cats on the car) and the rest is some carbon and oil. It smokes pretty good but only after closing the throttle from wot. also I do believ ethere was no white smoke before I removed the high flow cat.
unburnt fuel probably wont burn white. it's probably just a little oil burning, i wouldnt try to read into different shades of smoke.
[*]not loosing a significant amount of oil from what I can determine. Now the turbo drain is leaking where it is threaded together at the turbo and the oil pan is alittle also. So the level is dropping but not fast at all.
You can burn a lot of oil before it actually shows up as an oil loss. once again, i wouldnt read too much into how quickly you are losing oil. it doesnt sound like you have a lot of smoke, so you probably arent burning too much
[*]smoke is definately coming from the exhaust
It's probably safe to say you can never get rid of all the smoke. keep in mind that with a turbo system you cant get rid of all blow-by, and with a pressurized intake it really has nowhere to go, even with catch cans you still will see a little smoking
[*]compression check yeild numbers that seem to be ok but maybe not great. at 6 psi my car pulls pretty good against a ported 3L.
even if you arent running great compression or are getting blowby, it isn't going to show up as a major power loss until you get leaks of up over 20% past the rings. I read an article a while back with a before and after a re-ring. no changes to the motor other than some honing an new rings, leakdown went from 30% to 5%, and they picked up 5 hp, not much...
[*]I believe the crank case is being pressurized. added a oil seperator and the pcv popped out from the line to the block. didn't effect idle at all and it didn't spray oil everywhere. I put a zip tie around the hose and the pcv and it hasn't moved since. The front valve cover breath has some oil collecting around it. Also the oil seperator isn't collecting any significant amount of oil.
PCV blowing out is a definate sign of crankcase pressure. have you tried putting a breather on the oil fill. technically you would be letting unmetered air into the intake at idle, but I ran one on the mustang with no problems. sometimes catch cans don't really work well, it depends on the setup of the system. it might actually be a restriction.
[*]an observation. normally when you remove the oil filler cap when the engine is running you get that loud pulsing sound, this engin doesn't do that. Could the oil seperator between the heads be causing a problem?
interesting observation, is it pulling a good vacuum there? put your hand over the hole and see if you feel a suction on your palm.
[*]my apexi turbo timer says the A/F is dropping below 10:1 at wot where my wideband is saying 11.8 to 12.2 from what I have observed.
is this reading from your stock 02 sensor? if so, don't even bother monitoring it. its a narrow band and basically useless.
[*]datalogging shows that one bank is 10 to 20% off in fuel from the other.
keep in mind if you are burning oil, it will show up in your 02 sensor reading. oil burning will mimick richer. if one bank has blowby and one doesnt, you will see a difference between them in your 02 sensors.
