[ZR1] Second catch can suprizing results!
03-28-2014, 09:42 PM
#21
Drifting
Member Since: Jul 2003
Location: West of Burlington, Ontario Canada
Posts: 1,694
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I'm also probably mistaken so I'd like to be corrected. It's my thought that there are certain points on the motor you reference meant to have the oil or gases extracted and the main reason they are routed back through the intake system is for emissions purposes. Because you can't exactly vent the oil and gas to the atmosphere and be legal?
Run on sentences, my apologies.
Run on sentences, my apologies.
Your second question regarding the breather. This is a closed system and putting a breather in the system would negate the need for the breather system (from the intake hose mentioned in the previous answer) already installed on the car.
Last edited by GMJim; 03-28-2014 at 09:47 PM.
03-29-2014, 02:03 PM
#22
To fit the new hose on the valley plate, you have reused the OEM fitting of the part you have removed?
03-29-2014, 05:39 PM
#23
Drifting
Member Since: Jul 2003
Location: West of Burlington, Ontario Canada
Posts: 1,694
Received 230 Likes
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I'm also probably mistaken so I'd like to be corrected. It's my thought that there are certain points on the motor you reference meant to have the oil or gases extracted and the main reason they are routed back through the intake system is for emissions purposes. Because you can't exactly vent the oil and gas to the atmosphere and be legal?
Run on sentences, my apologies.
Run on sentences, my apologies.
I think everyone will agree the top diagram (in my very bad hand drawn sheet above) shows the way everyone has their valley catch can hooked up. This is confirmed to work well by most people. The bottom diagram in my hand drawn sheet shows how everyone has the other can (I'll call it the oil tank can) hooked up BUT I HAVE INDICATED THE FLOW GOING THE OPPOSITE WAY to show how I feel it works (but you would remove the catch can from the system). My vacuum gauge says I am correct.
This GM diagram clearly shows these lines to be FRESH AIR PORTS not crank case gasses. This is why nobody has any oil in their oil tank can. I have changed my mind on installing the second can based this GM diagram and my vacuum gauge. Anybody wanna buy a catch can?
04-09-2016, 01:42 PM
#24
resurrecting this a bit....Bought my ZR back in December and now that good weather is hear ive been doing some looking around and noticed it came with an Elite catch can which is this exact one you speak of that does no good (opened it for the first time and it was bone dry). My question is what would i have to do (hoses, hose routing etc) in order to basically convert what i have now into the other version that actually works and is pulling from the valley plate?
04-10-2016, 07:58 AM
#25
Drifting
resurrecting this a bit....Bought my ZR back in December and now that good weather is hear ive been doing some looking around and noticed it came with an Elite catch can which is this exact one you speak of that does no good (opened it for the first time and it was bone dry). My question is what would i have to do (hoses, hose routing etc) in order to basically convert what i have now into the other version that actually works and is pulling from the valley plate?