Bob Avellar said:
Turbo seal most definately CAN be bad at the exhaust housing. It will drip oil directly into the downpipe and it can make an excellet mosquito fog filled with oil smoke. Coincidence? Maybe-maybe not. Stuff like that happens to me all the time. :wink:
I get what you're saying. Excellent point. For some reason I was only thinking of it leaking on the intake side.
Now assuming your tune is ok, get your boost down to like 15psi, and right now, or tomorrow, go do some WOT runs almost to redline, wherever that may be on your engine, up through 2nd gear and a little of 3rd. You just want to stay in it for maybe 5 seconds. Do like 4 runs. The rpms and boost are important right now to push the rings into the walls and scrape all that crap out, and break in the rings. Plus it will make the valves seat really well (now is the time to do it), which by itself can double/triple the life of your valves sitting leak free on the seats. After you do this, go drain the oil again (I know its getting old but you should do it), change the filter and throw in some cheapo dino oil, 10W-30, and cruise around nice and easy for the next 3000 miles. Right after changing the oil this time (not the one you just did..the one you're about to do after the WOT runs), do a compression test on all cylinders and write the results down. then 3000 miles from now after you change the oil, test again and see if the numbers have improved. I would take the advise above and pull the O2 sensor out and take a look to see if the turbo seal has indeed gone bad. But whether that is or is not the case, this type of break in procedure can help produce a very clean burning and more powerful than average engine which will last ALOT longer. The motorcycle guys are catching on to this. You should see the pics of an engine teardown on an engine that was broken in the normal way, and this way. On the normal break-in engine, the pistons are all scuffed up, rings dont look very good, valves arent seating well, etc., while the other ones are beautiful. We did this break in on alot of race motors (cars not bikes) on the dyno (well except for the 3000 mile part), and after a 500 mile race, the engines would tear down looking brand new inside. bearings, piston skirts, rings, cylinder walls, etc, all looked fresh. Lobes and lifters looked great. And these were on .600 lift flat tappet road race cams with over 200 lbs seat pressure. We would do that break in procedure on the dyno, change the oil, and then after dyno tuning change the oil again and switch to redline synthetic. The top 6 finishers in top sportsman all had engines built by us.... We built some engines for Winston West (right below nascar), and the results were the same. We were always highest in hp compared to the other builders and more often than not, the top qualifiers in just about every circuit we got involved in. Next to good blueprinting procedures, proper break in is extremely important.
:frown: 
