Jlt oil Sep

[deepimpact]

Running the oil Sep with vmp sc I been collecting about an oz of oil every 2 weeks is this normal or is the pcv possibly bad? Just a little concerned is all.

I'm hittin the track Friday to see what she can really pull.

 

[stormtropper]

How come there isn't a return line somewhere to just put it back into the sytem or do you just pour it back down the fill tube all the time???? Why isnt this from the factory or is this like adding strips to make you cr go faster I am just not getting the whole catch can breather thing???

 

[Boaisy]

The Coyote motors experience terrible "blow-by." This is mostly caused by the amount of oil that gets dumped back into the intake area with the factory PCV system. Almost anyone running high power/high stress applications on the Coyote are using a breather or catch can system of some type. Blow-by also tends to show up if you run high RPMs a lot (road course).

http://s197forum.com/forum/showthread.php?p=1987384
http://s197forum.com/forum/showpost.php?p=1987384&postcount=12

I can't see the pictures from that post at the moment, but it should show some blow by. It also links to a separator/catch can thread where another driver was experiencing "batscreen" amounts of blow-by.

With all of that being said, JLT took some flak with the earlier versions of their catch cans. They essentially didn't make any difference vs. the stock PCV system. At the price they charged for them, it made a few people mad. I ended up getting a Bob's Autosport one that did pretty well. My JLT (the early version) barely filled up an 1/8th of the can. Bob's would sometimes fill up half, and it is a MUCH bigger can than the JLT.

 

[5lho]

That said, it's the MT cars that are more prone to this, because they spend more time in the overrun (high vacuum, compression braking). That's the worst of it there. I was collecting a couple ounces every couple weeks on my last car and it was making 439 horse on a tune only and pushing the maximum allowable compression on all 8 after three years of beating on it at the dragstrip.

My current auto car loses not a drop, because general operating is a lower rpms more often and it isn't in high vacuum as much in daily use.

 

[deepimpact]

I just wonder if I should have done the breather instead I just don't wanna be getting and oil sucked back in to the sc

 

[5lho]

Well...it appears to be going into the catch can, as designed. I didn't find it made more after I went FI on my last car.