Do people here install catch cans? Or dumb idea? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

daniloneil8 · 04-07-2020, 06:52 PM

Direct injection

Breadman · 04-07-2020, 07:30 PM

i have put a catch can on every car i own. i see no reason not to

Mr.ac · 04-07-2020, 07:44 PM

For a turbocharged car, yes why not?

For a NA, eh. What ever tickles your pickle. If it would be absolutely beneficial the factory would have put one in.

86TOYO2k17 · 04-07-2020, 07:53 PM

Get one if you enjoy spending money, or you are FI. No point NA.

daniloneil8 · 04-07-2020, 11:35 PM

Why yes for FI, but not NA?
What is the difference ?

Yoshoobaroo · 04-08-2020, 12:46 AM

Quote:

Originally Posted by daniloneil8

Why yes for FI, but not NA?
What is the difference ?

The crankcase doesnt really get pressurized when you’re NA, a little pressure that slips past the piston rings is it really. You don’t have a turbo/sc trying to multiply that effect.

Breadman · 04-08-2020, 08:09 AM

Quote:

Originally Posted by 86TOYO2k17

Get one if you enjoy spending money, or you are FI. No point NA.

my can pulls out about 1 oz of blowby every few months. its not much but i still rather not have that get sucked in over the throttlebody and intake valves

x808drifter · 04-08-2020, 08:16 AM

Quote:

Originally Posted by Breadman

my can pulls out about 1 oz of blowby every few months. its not much but i still rather not have that get sucked in over the throttlebody and intake valves

How much off that 1oz is actual oil vs condensation?

nikitopo · 04-08-2020, 08:30 AM

dumb

mrg666 · 04-08-2020, 08:38 AM

With FI, my catch can collects about a cup in a month and more than half of it is water. I would say it is okay not to have a catch can even with FI. It makes more sense if the car is regularly tracked.

86TOYO2k17 · 04-08-2020, 09:02 AM

Quote:

Originally Posted by Breadman

my can pulls out about 1 oz of blowby every few months. its not much but i still rather not have that get sucked in over the throttlebody and intake valves

That sucks, i have 2 cans and FI and i get way less than that. Although months is also irrelevant measurement, miles / WOT miles is more relevant. but you shouldn't really get much at all if NA not nearly enough to make any difference or cause any issue to justify a need for a can. Sounds like your rings might be getting old or you drive 5 times more than most, and 3 months is 15k+ miles for you with lots of hard WOT driving.

Breadman · 04-08-2020, 10:53 AM

Quote:

Originally Posted by x808drifter

How much off that 1oz is actual oil vs condensation?

when its not cold out most of it is oil. also for the other person asking, i take it to redline multiple times a day. if you arent driving the car hard you are driving it wrong. i also run 5w30 when its warm out so maybe that gets blown by more than 0w20

86TOYO2k17 · 04-08-2020, 11:11 AM

Quote:

Originally Posted by Breadman

when its not cold out most of it is oil. also for the other person asking, i take it to redline multiple times a day. if you arent driving the car hard you are driving it wrong. i also run 5w30 when its warm out so maybe that gets blown by more than 0w20

Agreed, I take it to redline pulling 1-2-3-4 gears several times a day everyday. Pushing 13psi. Still not close to your oil in both my cans combined.

Breadman · 04-08-2020, 02:43 PM

Quote:

Originally Posted by 86TOYO2k17

Agreed, I take it to redline pulling 1-2-3-4 gears several times a day everyday. Pushing 13psi. Still not close to your oil in both my cans combined.

not sure what to say. every car is different. i know my garage isnt totally level so maybe im slightly over filling. also redline in 3rd is like 90mph

04-07-2020, 06:52 PM	#1
daniloneil8 Senior Member Join Date: Jan 2020 Drives: FRS Location: USA Posts: 105 Thanks: 1 Thanked 29 Times in 21 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Do people here install catch cans? Or dumb idea? Direct injection

04-07-2020, 07:44 PM	#3
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,369 Thanks: 709 Thanked 1,558 Times in 930 Posts Mentioned: 30 Post(s) Tagged: 0 Thread(s)	For a turbocharged car, yes why not? For a NA, eh. What ever tickles your pickle. If it would be absolutely beneficial the factory would have put one in. __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

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04-07-2020, 07:30 PM	#2
Breadman Senior Member Join Date: Jul 2017 Drives: 2017 BRZ w/PP Location: Pa Posts: 1,027 Thanks: 51 Thanked 302 Times in 225 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	i have put a catch can on every car i own. i see no reason not to

04-07-2020, 07:53 PM	#4
86TOYO2k17 Senior Member Join Date: Jan 2018 Drives: 2017 toyota 86 Location: PNW Posts: 2,131 Thanks: 336 Thanked 1,188 Times in 781 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	Get one if you enjoy spending money, or you are FI. No point NA.

04-07-2020, 11:35 PM	#5
daniloneil8 Senior Member Join Date: Jan 2020 Drives: FRS Location: USA Posts: 105 Thanks: 1 Thanked 29 Times in 21 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Why yes for FI, but not NA? What is the difference ?

04-08-2020, 08:30 AM	#9
nikitopo Senior Member Join Date: Mar 2014 Drives: '15 BRZ RA Location: Greece Posts: 3,787 Thanks: 2,416 Thanked 1,944 Times in 1,261 Posts Mentioned: 29 Post(s) Tagged: 0 Thread(s)	dumb

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