Upr catch can after 1500 miles

SHOme

New member
Here is what I drained.  It's been on the car for around 1500 miles. It smells like exhaust.

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Yuck!

Strange question comes to mind.  I see evidence from catch can photos and intake shots that these motors are insanely dirty, but then I see everyone's pictures of clean spark plugs.

How are these engines able to be so dirty, but not foul plugs?  I understand the high voltage ignition systems do a great job, but why isn't there more evidence of oil deposits on the plugs?
 
I have a question about the drain on the UPR catch can.  I have run a hose from the bottom of the catch can to just behind the front facia.  Can I put the drain vavle at the bottom of the hose behind the facia or will that affect its ability to collect?  This would also increase the capacity of the can somewhat.  For that matter could I add and auxiliary can downstream where there is more room?
 
sholxgt said:
Yuck!

Strange question comes to mind.  I see evidence from catch can photos and intake shots that these motors are insanely dirty, but then I see everyone's pictures of clean spark plugs.

How are these engines able to be so dirty, but not foul plugs?  I understand the high voltage ignition systems do a great job, but why isn't there more evidence of oil deposits on the plugs?
Maybe because of the oil spray on the hot cylinder wall below the ring lands that our engines have... Maybe because there is a point in every cylinder cycle where the exhaust and intake valves are all open... Dunno
 
BiGMaC said:
sholxgt said:
Yuck!

Strange question comes to mind.  I see evidence from catch can photos and intake shots that these motors are insanely dirty, but then I see everyone's pictures of clean spark plugs.

How are these engines able to be so dirty, but not foul plugs?  I understand the high voltage ignition systems do a great job, but why isn't there more evidence of oil deposits on the plugs?
Maybe because of the oil spray on the hot cylinder wall below the ring lands that our engines have... Maybe because there is a point in every cylinder cycle where the exhaust and intake valves are all open... Dunno
I was curious if there is evidence of any "Black Soot"from your tailpipes OP.  Z
 
Yes but seems to be less since catch can install.  I could be imagining it though.  FYI I still have Cats.
 
SHOme said:
Yes but seems to be less since catch can install.  I could be imagining it though.  FYI I still have Cats.
Be sure it's not summer gas (corn) making the difference. I noticed a decrease with my MDesign when I installed it... Then had some increase (still better than before) after the summer gas went away.
 
SHOdded said:
Need to put an MDesign CAI on there, glock ;)
I have a k&n panel with a modified air box that has an aux hose that goes down to the lower front facia with a small scoop. Not sure if it helps performance wise but IAT drops very quickly once I'm moving.
 
ZSHO said:
SHOme said:
Mine after 250 miles. 
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That's pretty good IMO.  Z

I was thinking the same thing.  I'm not through this tank of gas (were clean at start) and they already look like it has a PowerStroke instead of a gas motor.

Mine for reference with about 300 miles...

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