Ls3 catch can
Ls3 catch can I’ve been reading and still can’t figure out the best way to run a catch can. I have a crate ls3 that I added a cam. It currently has stock valve covers but debating on upgrading to Holley.
Can I run it from the valley port to the catch can then to the intake port?
Now for the ports on the driver and passenger side valve cover, can I cap those and run an air breather where the oil cap is?
or what do you recommend?
Can I run it from the valley port to the catch can then to the intake port?
Now for the ports on the driver and passenger side valve cover, can I cap those and run an air breather where the oil cap is?
or what do you recommend?
I'm no pcv expert, but what you described should be fine for the dirty side. As for the clean side, I believe you're allowing unmetered air into the crank case. Normally that line comes off the intake tract after the maf and before the throttle body. Not sure if things have changed on the mentality here, but I believe that's not preferred from an air metering perspective. Find a way to connect the passenger cover to the intake tubing for oem metering.
Launching!
Joined: Mar 2016
Posts: 201
Likes: 10
One valve cover needs to draw air from after the MAF for the clean air side. So you’ll need some
rubber hose run from the intake tube (positioned between the MAF and TB) to either valve cover and plug the one you don’t use.
the catch can between the valley plate port and the intake manifold is correct
rubber hose run from the intake tube (positioned between the MAF and TB) to either valve cover and plug the one you don’t use.
the catch can between the valley plate port and the intake manifold is correct
I think I’m having a better understanding.
The dirty side being the valley port and intake manifold port, run a sealed can between those two ports?
I’ve seen the Mighty Mouse cans, seem really nice but looks like they had a filter on them. Is that ok, or does it need to be sealed? Mighty Mouse doesn’t have a phone contact and I’ve tried to email through the website twice with no luck.
If sealed where is a good place to buy one?
Now if I’m understanding this correctly, the clean side is the ports coming off the valve covers. block one of the ports off, then run hose to the intake between tb and maf?
This would be referring to a say cold air intake, at the end would be a filter, then maf, then a fitting with hose running back to valve cover, then throttle body, then intake manifold
The dirty side being the valley port and intake manifold port, run a sealed can between those two ports?
I’ve seen the Mighty Mouse cans, seem really nice but looks like they had a filter on them. Is that ok, or does it need to be sealed? Mighty Mouse doesn’t have a phone contact and I’ve tried to email through the website twice with no luck.
If sealed where is a good place to buy one?
Now if I’m understanding this correctly, the clean side is the ports coming off the valve covers. block one of the ports off, then run hose to the intake between tb and maf?
This would be referring to a say cold air intake, at the end would be a filter, then maf, then a fitting with hose running back to valve cover, then throttle body, then intake manifold
Launching!
Joined: Mar 2016
Posts: 201
Likes: 10
I think I’m having a better understanding.
The dirty side being the valley port and intake manifold port, run a sealed can between those two ports?
I’ve seen the Mighty Mouse cans, seem really nice but looks like they had a filter on them. Is that ok, or does it need to be sealed? Mighty Mouse doesn’t have a phone contact and I’ve tried to email through the website twice with no luck.
If sealed where is a good place to buy one?
Now if I’m understanding this correctly, the clean side is the ports coming off the valve covers. block one of the ports off, then run hose to the intake between tb and maf?
This would be referring to a say cold air intake, at the end would be a filter, then maf, then a fitting with hose running back to valve cover, then throttle body, then intake manifold
The dirty side being the valley port and intake manifold port, run a sealed can between those two ports?
I’ve seen the Mighty Mouse cans, seem really nice but looks like they had a filter on them. Is that ok, or does it need to be sealed? Mighty Mouse doesn’t have a phone contact and I’ve tried to email through the website twice with no luck.
If sealed where is a good place to buy one?
Now if I’m understanding this correctly, the clean side is the ports coming off the valve covers. block one of the ports off, then run hose to the intake between tb and maf?
This would be referring to a say cold air intake, at the end would be a filter, then maf, then a fitting with hose running back to valve cover, then throttle body, then intake manifold
the MMS cans are the best of a closed system and a breather system. Inside of the filter is a rubber disc which seals against the top of the can when there is vacuum in the manifold. When you floor it, that same disc loses its seal to the can and the gasses go out through the filter to the atmosphere instead of your intake. I’ve got one and it’s a very nice piece
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correct!
the MMS cans are the best of a closed system and a breather system. Inside of the filter is a rubber disc which seals against the top of the can when there is vacuum in the manifold. When you floor it, that same disc loses its seal to the can and the gasses go out through the filter to the atmosphere instead of your intake. I’ve got one and it’s a very nice piece
the MMS cans are the best of a closed system and a breather system. Inside of the filter is a rubber disc which seals against the top of the can when there is vacuum in the manifold. When you floor it, that same disc loses its seal to the can and the gasses go out through the filter to the atmosphere instead of your intake. I’ve got one and it’s a very nice piece
Thanks!
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