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Supercharged coyote oil blow out

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Old 12/29/12, 07:55 PM
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Supercharged coyote oil blow out

Does any one have an issue with excessive crank case pressure and alot of oil blow back? Mainly in 5th gear.
Old 12/30/12, 05:52 AM
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You left out so much info how could anyone answer this? What blower would be a good start.
Old 12/30/12, 11:23 AM
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My bad. Vortech blower and I put a jlt oil seperator on the passenger side and a breather on the drivers side. I ran the car through 5th gear and it threw so much oil out of the drivers side breather it got all over the engine bay and the headers. I'm gonna put a catch can on it but I was wondering if that much pressure and oil blow back was normal.
Old 12/30/12, 05:21 PM
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The more boost the more crank pressure.
You might try some breathers with an oil reservoir. Like used on the Cobra Jet.
Old 12/30/12, 05:44 PM
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I was thinking of running two catch cans off the engine to breathers so that I don't have to worry about connecting them to the intake. I think some oil still gets through my jlt on the passenger side and I think it messes with my engine in the higher rpms as far as my afr's. if I capped of my intake spots and did the catch cans to breathers would that affect the engine?
Old 12/31/12, 02:58 PM
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Originally Posted by JEdwards001
I was thinking of running two catch cans off the engine to breathers so that I don't have to worry about connecting them to the intake. I think some oil still gets through my jlt on the passenger side and I think it messes with my engine in the higher rpms as far as my afr's. if I capped of my intake spots and did the catch cans to breathers would that affect the engine?
No you could do that and it would be fine. And you're correct some oil does get by the JLT separator. JPC sells this that would also work.
http://www.jpcracing.com/2011-gt-boss-breather-package/
Old 12/31/12, 03:27 PM
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I believe the JLT's are too restrictive as noted by several who say they hardly catch any in the sep and by those that have compared the same engine with JLT & Moroso (which definitely catches more in the sep).

So the path of least resistance with your current setup is to blow through the breather.

Eliminate the breathers completely. And you shouldn't need an oil sep on the 'intake' side (narrow tube) - only on the larger 'PCV tube' that evacuates the crankcase.

2k7gtcs said the same thing with breathers spraying the engine bay (has blower) and went back to an oil sep.

Last edited by cdynaco; 12/31/12 at 03:34 PM.
Old 1/8/13, 12:02 PM
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Why not use a gt500 PCV with morso setup?

I wish JLT actually worked because they look nice. If you put some catching material in there may would help (something to absorb the mist)
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