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Old 09-25-2012, 08:39 PM   #1
2012 ZL1#1658
 
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RX Catch Can with Dual Check Valve

Has anyone installed the RX Catch Can with Dual Check Valve for their ZL1? I bought one and it did not have instructions to go with it. I am not the most mechanically inclined person out there but the instructions I found on the website were not very user friendly. I'd appreciate the feedback.
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Old 09-25-2012, 08:44 PM   #2
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I bought one, but haven't installed it yet. I saw that in the instructions you have to tap into the air inlet pipe. I just installed a Roto Fab intake and there is no way I am drilling a hole it the pipe!

Right now it's just sitting on my bench. Would like to know too how other people installed the dual can on there ZL1.
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Old 09-25-2012, 08:50 PM   #3
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If you pm RX Catch Can they will tell you exactly what to do
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Old 09-25-2012, 09:27 PM   #4
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Yep, I just dealt with them on a different issue. They were great to deal with. They went above and beyond in taking care of my problem. Give them a call or shoot them an email, they will get you fixed right up.

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Old 09-26-2012, 12:33 AM   #5
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I will be in the next day or two. maybe I will take pictures and put a DIY up. I have seen this question come up quite a few times.

I ordered the dual valve so I know where to hook in with the single value but I don't know the exact location for the second valve hookup.
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Old 09-26-2012, 05:13 AM   #6
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Quote:
Originally Posted by hognutz View Post
I will be in the next day or two. maybe I will take pictures and put a DIY up. I have seen this question come up quite a few times.

I ordered the dual valve so I know where to hook in with the single value but I don't know the exact location for the second valve hookup.
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Old 09-27-2012, 01:16 PM   #7
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Okay did the install last night. here is the nuts and bolts of it.

1. the braket goes beween the shroud and radiator with the bend facing the passenger side.
2. the bolt is too short so you need to swap that bolt for the one on the radiator support above it.
3. there is paint in the threads ont he catch can most likley so make sure you run the bolts in bfore you try to thread on the brackt.
4. locate the valley vent to vacuum tube under the bypass valve actuator and remove it.
5. the center port goes to the crankcase or vally tube. the lowest tube below the TB.
6. the port closest to the engine goes to vaccum wich is the upper port.
the port closet to the radiator goes to the a barb fitting supplied mounted int he intake tube.

I will have pictures later I am going to write up a word doc and send it to them just because there's is kind of at level that some will struggle with. and there just show pictures of the barb fitting mounted int here optional tube. A simple picture with the ports on each labbled a, b, c or something like that would really clear this up for people. Also instruction about mounting the barb in the oem tube will clear confusion up.
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Last edited by hognutz; 09-27-2012 at 10:44 PM.
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Old 09-27-2012, 01:18 PM   #8
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Quote:
Originally Posted by BonestockZL1 View Post
I bought one, but haven't installed it yet. I saw that in the instructions you have to tap into the air inlet pipe. I just installed a Roto Fab intake and there is no way I am drilling a hole it the pipe!

Right now it's just sitting on my bench. Would like to know too how other people installed the dual can on there ZL1.
it does require tapping into the intake tupe. it is just a pipe tap so my .02 would be do it and you could always use a flush allen style pipe plug to go back.
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Old 10-22-2012, 10:08 AM   #9
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Originally Posted by hognutz View Post
it does require tapping into the intake tupe. it is just a pipe tap so my .02 would be do it and you could always use a flush allen style pipe plug to go back.
Awesome. Thanks for this.
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Old 10-22-2012, 10:24 AM   #10
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Great pic's, I have mine on the bench right now also. I'm waiting on my new Intake so i don't have to tap a hole into the stock pipe.
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Old 10-22-2012, 11:26 AM   #11
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What is the difference between the dual and single valve? I was under the impression the single valve catch cans were to be used?
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Old 10-22-2012, 12:07 PM   #12
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Does it matter how long the hoses are?
Does the elevation of the catch can in relation to the valley ports matter?

I want to install one of the RX cans but mounting it to the radiator or anywhere in the engine bay just adds to the "octopus" look under the hood.

I would like to mount it somewhere low between the radiator and the front grill, if hose length and elevation is not factor. Any thoughts ?
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Old 10-22-2012, 12:27 PM   #13
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Quote:
Originally Posted by 69NMYSS View Post
What is the difference between the dual and single valve? I was under the impression the single valve catch cans were to be used?
I talked with the engineer who designed this catch can. He said the single valve was good to use on the ZL1. He said the double valve was nice but not necessary. I ordered the single.
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Old 10-22-2012, 01:51 PM   #14
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Quote:
Originally Posted by 69NMYSS View Post
What is the difference between the dual and single valve? I was under the impression the single valve catch cans were to be used?

the dual valve catch can will allow for some crankcase evacuation at WOT is what they told me.

I just called RX direclty and that is what they recomended for the ZL1. it is not required just recomended. I am going to be addeding boost at some point so i just went with it.
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Old 10-22-2012, 02:16 PM   #15
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I ordered the smooth intake tube from them 2 weeks ago. It was the wrong size all around. I gave them all the measurements and am waiting for them to get back to me. I didn't want t drill a hole in the factory acordion tube. They're smooth tube is nice, it was just too tight on the air cleaner too loose on the throttle opening and about 1 1/2 inches too short. So mine also has been just sitting in the box in my garage.
If they can get it right for me that would be the way to go. The holes for the barbs are already in i, so I don't have to worry about the wrong spot.
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Old 10-22-2012, 02:33 PM   #16
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I ordered the smooth intake tube from them 2 weeks ago. It was the wrong size all around. I gave them all the measurements and am waiting for them to get back to me. I didn't want t drill a hole in the factory acordion tube. They're smooth tube is nice, it was just too tight on the air cleaner too loose on the throttle opening and about 1 1/2 inches too short. So mine also has been just sitting in the box in my garage.
If they can get it right for me that would be the way to go. The holes for the barbs are already in i, so I don't have to worry about the wrong spot.
There is no Check Valve in the factory setup from GM. A check valve is not necessary in fact you may hear a slight clicking at idle of the N/C check valve chattering at idle. A valley to snout can is a must but gravity non check valve can will work fine. The snout is not pressurized so no check valve is necessary.

Think of it this way. All you want is when oil and vacuum go through the snout/blower valley line gravity will make oil fall into can. GM does not have a C/V here so why add one?
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Old 10-22-2012, 02:52 PM   #17
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Quote:
Originally Posted by ZL1Bullet View Post
I talked with the engineer who designed this catch can. He said the single valve was good to use on the ZL1. He said the double valve was nice but not necessary. I ordered the single.
I did the same after speaking with Ted at Jannetty. Ordered it from him as well.
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Old 10-22-2012, 05:21 PM   #18
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I did the same after speaking with Ted at Jannetty. Ordered it from him as well.
x3

Easy install.
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Old 10-22-2012, 05:45 PM   #19
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Quote:
Originally Posted by Betiwin View Post
There is no Check Valve in the factory setup from GM. A check valve is not necessary in fact you may hear a slight clicking at idle of the N/C check valve chattering at idle. A valley to snout can is a must but gravity non check valve can will work fine. The snout is not pressurized so no check valve is necessary.

Think of it this way. All you want is when oil and vacuum go through the snout/blower valley line gravity will make oil fall into can. GM does not have a C/V here so why add one?
here is a good thread with info on why they recomend it. Now it is up to you whether or not you buy into it.

http://www.camaro5.com/forums/showth...ighlight=catch
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Old 10-25-2012, 09:42 AM   #20
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Quick question...do you need an oil catch can that connects to the air intake? Is this necessary?
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Old 11-09-2012, 03:30 PM   #21
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It's recommended not necessary. I got the dual valve and have talked with them and the said that you can just plug the valve that is going to the intake tube if you don't want to tap it now.
Roto Fab said they can put a T fitting in the tube for the dual valve cans. That way you wouldn't have to tap into the tube.
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