catch can question - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

sterling · 07-06-2018, 10:14 PM

i want a pvc catch can but have a few questions.

i will probably never add any forced injection so is a breather catch can, the radium dual thing beneficial? how does this thing work? i have never had oil in the breather line in any other car.

can i use the breather can as the pvc? it looks like it would be easier to drain in the driver side corner.

i am looking at the mishimoto and the radium. any preferences?

NoHaveMSG · 07-06-2018, 10:18 PM

Why do you think you need a catch can?

DarkPira7e · 07-06-2018, 10:23 PM

I have radium pcv side in mine. Normal driving I get nothing, but if I'm doing really hard driving I end up with about a teaspoon per hard event (autocross). Headers and a tune only, 40,000 miles on a 2013

sterling · 07-07-2018, 10:47 AM

i was really trying the "ounce of prevention is worth a pound of cure". i didnt want to carbon up my valves. my jeep use to have a few ounces every oil change. enough to leave oil on the plugs and leave oil in the intake

wbradley · 07-07-2018, 11:02 AM

From my experience the catch can caught insignificant amounts of oil no matter how I drove. So, I removed it as it is unnecessary bling.

When I purchased it in 2013 people were posting pictures here showing cups full of oil being caught. Mine was more like a thimble full after a few months. Not sure why but perhaps it has to do with piston rings or something. Also, FI made no difference.

Not to be a ****, but it's forced INDUCTION (if that wasn't an autocorrect error).

Carbon on the valves is more an issue with many direct injection designs, but the D4S system is highly effective at preventing this. More likely it's just an oily lining to the intake manifold.

sterling · 07-07-2018, 12:02 PM

thanks for the info. that's money i can waste else where. ha!

humfrz · 07-07-2018, 06:06 PM

Quote:

Originally Posted by sterling

thanks for the info. that's money i can waste else where. ha!

There ya go ….

humfrz

humfrz · 07-07-2018, 06:07 PM

Quote:

Originally Posted by wbradley

From my experience the catch can caught insignificant amounts of oil no matter how I drove. So, I removed it as it is unnecessary bling.

When I purchased it in 2013 people were posting pictures here showing cups full of oil being caught. Mine was more like a thimble full after a few months. Not sure why but perhaps it has to do with piston rings or something. Also, FI made no difference.

Not to be a ****, but it's forced INDUCTION (if that wasn't an autocorrect error).

Carbon on the valves is more an issue with many direct injection designs, but the D4S system is highly effective at preventing this. More likely it's just an oily lining to the intake manifold.

Good informative post …

humfrz

07-06-2018, 10:14 PM	#1
sterling Junior Member Join Date: Jul 2018 Drives: 2018 brz auto Location: maryland Posts: 8 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	catch can question i want a pvc catch can but have a few questions. i will probably never add any forced injection so is a breather catch can, the radium dual thing beneficial? how does this thing work? i have never had oil in the breather line in any other car. can i use the breather can as the pvc? it looks like it would be easier to drain in the driver side corner. i am looking at the mishimoto and the radium. any preferences?

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07-06-2018, 10:23 PM	#3
DarkPira7e Rust bucket enthusiast Join Date: Feb 2017 Drives: 2013 Turbo Firestorm FRS Location: Vermont Posts: 4,054 Thanks: 3,313 Thanked 4,204 Times in 2,112 Posts Mentioned: 33 Post(s) Tagged: 0 Thread(s)	I have radium pcv side in mine. Normal driving I get nothing, but if I'm doing really hard driving I end up with about a teaspoon per hard event (autocross). Headers and a tune only, 40,000 miles on a 2013

07-07-2018, 10:47 AM	#4
sterling Junior Member Join Date: Jul 2018 Drives: 2018 brz auto Location: maryland Posts: 8 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	i was really trying the "ounce of prevention is worth a pound of cure". i didnt want to carbon up my valves. my jeep use to have a few ounces every oil change. enough to leave oil on the plugs and leave oil in the intake

07-07-2018, 12:02 PM	#6
sterling Junior Member Join Date: Jul 2018 Drives: 2018 brz auto Location: maryland Posts: 8 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	thanks for the info. that's money i can waste else where. ha!

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