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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 12-05-2010, 01:02 PM   #1
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catch can users; how many NOT using a lot of oil?

installed my catch can about 200-400 miles ago, drained it a few days ago to find i hadnt used any oil yet. i guess thats a good thing, but i kind of wished i found a little just to see that it actually works. anyone else's car like this?
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Old 12-05-2010, 01:26 PM   #2
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What's the deal with this catch can thing? Seen alot of people installing them, what's the purpose?
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Old 12-05-2010, 01:40 PM   #3
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The idea of a catch can is to give the crankcase gasses a place to condensate and be caught rather than going back into the throttle body where they can be sent back to the combustion chambers. Crankcase gasses can cause detonation and engine damage and reduce performace.

Regarding catch can working or not. 400 miles may not be enough to judge if it is working but I would have thought you would have had some oil by that point. I had a d1 catch can on mine prior to replacing with the RX can and even it had caught maybe 10 cc of oil. I assume that when you installed your CAI you hooked the fresh air line back up or that you have a crankcase breather installed. If you have no air in you will not get any clearing of the crankcase gasses. You should have a line that runs from your CAI after the maf sensor to the inlet just above the oil fill above the valve cover.
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Old 12-05-2010, 01:53 PM   #4
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Quote:
Originally Posted by JHL88 View Post
installed my catch can about 200-400 miles ago, drained it a few days ago to find i hadnt used any oil yet. i guess thats a good thing, but i kind of wished i found a little just to see that it actually works. anyone else's car like this?
At just 200 - 400 miles there is likely oil in the can, just not enough accumulated for any to drain out yet.
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Old 12-05-2010, 02:14 PM   #5
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I heard it really depends on how you drive your car. The ones using and finding oil are ones who drag race and had dyno runs a lot.
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Old 12-05-2010, 02:18 PM   #6
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I heard it really depends on how you drive your car. The ones using and finding oil are ones who drag race and had dyno runs a lot.
I never race my car. It's a daily driver. Check out my thread.

http://www.camaro5.com/forums/showth...oil+PCV+system
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Old 12-05-2010, 02:43 PM   #7
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That is not correct..I drive my SS basically on the weekends and have 7900 miles on it and I have drained it 3 times since installing it at 2100 miles and I have drained about a half of a coke can full.Now that might not seem like alot but when that continues to coat the valves,intake and tops of pistons over a long period of time , then I think you would agree that it will hurt the performance of your engine.
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Old 12-05-2010, 02:47 PM   #8
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I just removed my TB to send in for a CNC TB I noticed quite a bit of oil residue and puddling on the flap and also inside my intake manifold! I'm ordering a catch can along with the CNC TB!
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Old 12-05-2010, 03:03 PM   #9
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Quote:
Originally Posted by 2010 SS RS View Post
The idea of a catch can is to give the crankcase gasses a place to condensate and be caught rather than going back into the throttle body where they can be sent back to the combustion chambers. Crankcase gasses can cause detonation and engine damage and reduce performace.

Regarding catch can working or not. 400 miles may not be enough to judge if it is working but I would have thought you would have had some oil by that point. I had a d1 catch can on mine prior to replacing with the RX can and even it had caught maybe 10 cc of oil. I assume that when you installed your CAI you hooked the fresh air line back up or that you have a crankcase breather installed. If you have no air in you will not get any clearing of the crankcase gasses. You should have a line that runs from your CAI after the maf sensor to the inlet just above the oil fill above the valve cover.
yes, i reconnected that line one side with shrink wrap and the other slides on the bong of the intake tube
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Old 12-05-2010, 03:05 PM   #10
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FWIW now that i think about it, when i removed my stock intake unit to install my cold air inductions i didnt notice any oil on my TB blade. interesting
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Old 12-05-2010, 03:20 PM   #11
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FWIW now that i think about it, when i removed my stock intake unit to install my cold air inductions i didnt notice any oil on my TB blade. interesting
You would have to either take the throttle body off like Mike did, or hold the blade open and look at the back side. How many total miles do you have?
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Old 12-05-2010, 03:23 PM   #12
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You would have to either take the throttle body off like Mike did, or hold the blade open and look at the back side. How many total miles do you have?
i didnt take the TB off but i did open the TB blade and look on the backside didnt notice anything. shined a flashlight into the intake manifold but it was hard to tell. at the time i did the install i had about 3200-3300 miles. now i have 3500, had the car since april
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Old 12-05-2010, 04:56 PM   #13
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i didnt take the TB off but i did open the TB blade and look on the backside didnt notice anything. shined a flashlight into the intake manifold but it was hard to tell. at the time i did the install i had about 3200-3300 miles. now i have 3500, had the car since april
I got my car on June 11 but I have 9200 miles on it. You are very lucky if you aren't seeing any signs of oil after 3k miles. If mine were like yours I would only install my catch can for a week every few thousand miles to make sure it was still healthy.
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Old 12-05-2010, 05:22 PM   #14
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At just 200 - 400 miles there is likely oil in the can, just not enough accumulated for any to drain out yet.
Agreed. The RexExtreme will have to accumulate an anmount of oil in the bottom the can before the level is high enough to reach the top of the drain valve threaded into the bottom. Unless youu have an EXTRME oil blow by problem, I don't think 200-400 miles is enough time to reach that level.

Give it a bit more time. I gave mine about 2,000 miles before I checked it and got between 1-2 oz (eyeballed it in a soup can) drained out.
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Old 12-05-2010, 05:25 PM   #15
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Quote:
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i didnt take the TB off but i did open the TB blade and look on the backside didnt notice anything. shined a flashlight into the intake manifold but it was hard to tell. at the time i did the install i had about 3200-3300 miles. now i have 3500, had the car since april
Just read your latest post.

Odd........when I looked down my TB before the can it was OBVIOUS (sight AND smell) that I had oil in the inlet.
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Old 12-05-2010, 08:11 PM   #16
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Every now and then we see one w/out much of an issue....but most have a good amount coating to out-right puddles of oil in the intake.
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Old 12-06-2010, 09:29 AM   #17
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No catch can, no oil in intake or TB before or after SC installed and tuned at 3800,iles. Now at 7500 miles...

Very specific break-in procedure I have used on all my cars/bikes and been running a 160 T-stat from day 10 tho...
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Old 12-06-2010, 09:57 AM   #18
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About 1,500 miles in and maybe a few tablespoons of oil.
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Old 12-06-2010, 10:57 AM   #19
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At 200 miles with the Catch Can and I have at least a tablespoon of oil caught. Mine is a daily driver and I don't dog it, except for an occasional hard acceleration up to 70mph.
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Old 12-06-2010, 11:14 AM   #20
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arent catch cans usually used for cars with FI
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Old 12-06-2010, 01:09 PM   #21
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arent catch cans usually used for cars with FI
NO gasoline engine should have oil ingestion in the intake air charge, so 99% of then need one.
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