How much oil in your catch cans? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 22 Old 03-30-2011, 11:58 PM Thread Starter
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How much oil in your catch cans?

I just drained my catch can after doing a couple weeks of tuning and found about a cup of oil and some moisture. How much are you guys seeing and when are you draining these? I'm thinking of installing some baffles under my bungs to limit the spray of oil into the vent hoses.


1990 Coupe, 302/AOD, stock cam/short block, AFR 165's, 3.55's. Working on a N/A stroker build.
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post #2 of 22 Old 03-31-2011, 12:39 AM
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i drove my car about 4,000 miles last year...and probably 500 of that were hard miles...lol..

I emptied mine 3 times...2 times changing oil and one time when it was getting tuned...lots of hard hits that day seemed to fill it like halfway

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post #3 of 22 Old 03-31-2011, 11:06 AM
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I drove mine around for 3 days and put some hard miles on the car and didnt have a drop of oil in the can. But I did have a tiny amout of moisture in it

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pretty interesting...although I knew a guy whose son chewed through the backseat of his new Chevy Blazer on a vacation once....the guy asked the kid why, and the kid said he was just bored....
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post #4 of 22 Old 03-31-2011, 11:22 AM
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No oil here. Some moisture from time to time depending on the temp and weather.

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post #5 of 22 Old 03-31-2011, 11:59 AM Thread Starter
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Are you guys with no oil baffling near the bung or preventing oil from splashing into the hose?

1990 Coupe, 302/AOD, stock cam/short block, AFR 165's, 3.55's. Working on a N/A stroker build.
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post #6 of 22 Old 03-31-2011, 02:38 PM
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put some baffles under the bungs and I bet you'll see a lot less oil in the can.


Now get to work! Cheers
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post #7 of 22 Old 03-31-2011, 10:59 PM
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I dont have a baffle and I dont get any oil in the can

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pretty interesting...although I knew a guy whose son chewed through the backseat of his new Chevy Blazer on a vacation once....the guy asked the kid why, and the kid said he was just bored....
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post #8 of 22 Old 03-31-2011, 11:26 PM Thread Starter
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I dont have a baffle and I dont get any oil in the can
Where's your vents located?

1990 Coupe, 302/AOD, stock cam/short block, AFR 165's, 3.55's. Working on a N/A stroker build.
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post #9 of 22 Old 04-01-2011, 09:41 AM
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The AN lines are hooked up at the very front/top of the valve covers

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pretty interesting...although I knew a guy whose son chewed through the backseat of his new Chevy Blazer on a vacation once....the guy asked the kid why, and the kid said he was just bored....
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post #10 of 22 Old 04-01-2011, 11:25 AM Thread Starter
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The AN lines are hooked up at the very front/top of the valve covers
Same here, interesting. Do you notice any amount when really getting into it, 10+ psi.


1990 Coupe, 302/AOD, stock cam/short block, AFR 165's, 3.55's. Working on a N/A stroker build.
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post #11 of 22 Old 04-01-2011, 12:22 PM
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Same here, interesting. Do you notice any amount when really getting into it, 10+ psi.
The most I ran was 10psi. I went through a dyno session, prob 25+ full "pulls" on the street and about 350 miles in three days. Didnt have a drop in mine. What size lines are you running. I ran -10

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pretty interesting...although I knew a guy whose son chewed through the backseat of his new Chevy Blazer on a vacation once....the guy asked the kid why, and the kid said he was just bored....
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post #12 of 22 Old 04-01-2011, 12:43 PM Thread Starter
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8an, one on top towards the front of each valve cover.




1990 Coupe, 302/AOD, stock cam/short block, AFR 165's, 3.55's. Working on a N/A stroker build.
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post #13 of 22 Old 04-01-2011, 02:08 PM
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oil in catch can

I wonder if one or both of the fittings are right above a rocker and pushrod??
And oil is squirting up into your c/c line..just a thought

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post #14 of 22 Old 04-01-2011, 02:33 PM Thread Starter
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I wonder if one or both of the fittings are right above a rocker and pushrod??
And oil is squirting up into your c/c line..just a thought
Thats kind of what I'm thinking at this point. I drove it for 5 miles under no boost and found about a tablespoon of fresh oil in the can. I'll pull the vc's off and look where they line up. I may have to weld a baffle under the vent hole.

1990 Coupe, 302/AOD, stock cam/short block, AFR 165's, 3.55's. Working on a N/A stroker build.
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post #15 of 22 Old 04-03-2011, 12:23 PM
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try upping the size of your line to -10an or -12an that should help a little bit.. -10 should be plenty
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post #16 of 22 Old 04-03-2011, 12:40 PM Thread Starter
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try upping the size of your line to -10an or -12an that should help a little bit.. -10 should be plenty


Seems like this would just allow more oil to come out.

1990 Coupe, 302/AOD, stock cam/short block, AFR 165's, 3.55's. Working on a N/A stroker build.
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post #17 of 22 Old 04-03-2011, 11:27 PM
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Seems like this would just allow more oil to come out.
no it will do just the opposite. smaller the line the easier it is to pressurize or push oil through it
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post #18 of 22 Old 04-13-2011, 11:27 AM Thread Starter
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I just realized my oil fill tube hose was still connected to the TB port. This has been removed and I have much less oil in the catch can after a good day of testing. I'll keep it this way for a couple weeks and see how thing go.

1990 Coupe, 302/AOD, stock cam/short block, AFR 165's, 3.55's. Working on a N/A stroker build.
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post #19 of 22 Old 04-17-2011, 11:40 AM Thread Starter
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I also got my wastegate boost source routed correctly and keep the boost under 8psi. This along with not boosting the crankcase have got rid of all the oil in my catch can.

1990 Coupe, 302/AOD, stock cam/short block, AFR 165's, 3.55's. Working on a N/A stroker build.
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post #20 of 22 Old 04-17-2011, 01:30 PM
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spent about 3 hours on the dyno Friday making a crap load of hard pulls and I got no oil only a little over a teaspoon of condensation
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post #21 of 22 Old 04-17-2011, 02:34 PM Thread Starter
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I just check the can and found maybe a tablespoon amount of oil. This is after 3 days of hard road testing under 7-8 lbs of boost.

1990 Coupe, 302/AOD, stock cam/short block, AFR 165's, 3.55's. Working on a N/A stroker build.
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post #22 of 22 Old 04-18-2011, 11:17 AM
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No oil, just a little moisture after about 1000 miles of hard driving so far....
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