Dissapointing year end with my Roush 427R

[66gtk]

Originally Posted by crazychris

It is a new engine....Lou, This is Chris, Does your cobra have a rich smell at idle? Mine does and the Oil issue is concerning. It really seems to go through it. I am not sure what is happening with this low mileage engine. Every time I drive the piss out of it I come back after a 100-150 miles and it needs another solo cups worth to top it off. I now have 2500 miles on the car so break in should have happened. I will give you a call to discuss. But, for everyone else where does this oil go? There is no pressure build up that I can tell, no blow by and there is no smoke. I did notice that the pvc hose seems abit oily at the valve, but that would account for only a couple drops. Engine bay is impeccable, no leaks....nothing. Just can't figure this out. But, the car hauls ass and has a lot of torque. So, anyone who has had this problem let me know.

Are you sure there is NO smoke at all? After driving it for 20 minutes or so until it is full warmed up, let it sit for 10 and restart it observing very carefully for smoke. I'll bet you see some. Do not examine only on a cold start. Furthermore, assuming you have side pipes, drive on the street at night and observe your exhaust as it hits the headlights and such of cars idling near you or as you drive away.

What heads does your car have?

[crazychris]

Originally Posted by 66gtk

Are you sure there is NO smoke at all? After driving it for 20 minutes or so until it is full warmed up, let it sit for 10 and restart it observing very carefully for smoke. I'll bet you see some. Do not examine only on a cold start. Furthermore, assuming you have side pipes, drive on the street at night and observe your exhaust as it hits the headlights and such of cars idling near you or as you drive away.

What heads does your car have?

They are the roush AFR heads.

I think I may have found the issue. I spoke to the guys at the roush booth at the goodguys car show yesterday and one of them was a ex superformance dealer who now works for roush. When I explained my issue he told me right off the bat that he knew what it was, but then said that I would not believe him.
He told me the dipstick was wrong and the car was throwing the oil up on the block and cylinder walls at high speed and much of the oil was burned and the byproducts were going out the pcv valve. He told me to pull the drain plug, drain the oil, put 7 qts of oil. Then take a reading on the stick. It showed on the stick that it was at the add mark. I then filled the new filter with oil, removed and replaced the old. And, when I took the car out for a 100 miles or so trip. The oil was right where it was for the new reading. So, I am crossing my fingers that this was the problem....Disaster diverted, unless he is full of ****, and the car runs low on oil. Then, I will be talking to him and roush again.

[jmimac351]

Originally Posted by crazychris

They are the roush AFR heads.

I think I may have found the issue. I spoke to the guys at the roush booth at the goodguys car show yesterday and one of them was a ex superformance dealer who now works for roush. When I explained my issue he told me right off the bat that he knew what it was, but then said that I would not believe him.
He told me the dipstick was wrong and the car was throwing the oil up on the block and cylinder walls at high speed and much of the oil was burned and the byproducts were going out the pcv valve. He told me to pull the drain plug, drain the oil, put 7 qts of oil. Then take a reading on the stick. It showed on the stick that it was at the add mark. I then filled the new filter with oil, removed and replaced the old. And, when I took the car out for a 100 miles or so trip. The oil was right where it was for the new reading. So, I am crossing my fingers that this was the problem....Disaster diverted, unless he is full of ****, and the car runs low on oil. Then, I will be talking to him and roush again.

That's actually quite plausible. I had a similar issue on a 351W that was pieced together with Ford short block, heads, aftermarket oil pan, etc. Oil pans of even the same volume aren't necessarily the same depth. Anyone ever come across a spreadsheet that shows every short block / oil pan combo along with the part number for proper dipstick? Yeah, me neither. It has to be setup to be "perfect". It would not surprise me that it was setup as... "Yep, it's got oil in it!".