follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Speed By Design
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > Technical Topics > Engine, Exhaust, Transmission

Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


User Tag List

Reply
 
Thread Tools Search this Thread
Old 02-17-2021, 12:36 PM   #29
tomm.brz
Senior Member
 
Join Date: Jan 2017
Drives: brz 2017 hksv2
Location: italy
Posts: 2,183
Thanks: 499
Thanked 1,059 Times in 769 Posts
Mentioned: 64 Post(s)
Tagged: 0 Thread(s)
catch cans arent there to actually save an engine, some oil mixed with the fuel won't cause disruptive detonations out of nowhere

if you have real knock problems, you need failsafes and/or tune revisions to fix that, or better fuel etc.. A good tune will correct eventual knocks caused by those vapours

It 's just that we know crank vapours re-entering the combustion chambers can make the fuel quality worse specially when you drive hard for long so they just aid in keeping the "charge" as clean as possible
tomm.brz is offline   Reply With Quote
The Following 2 Users Say Thank You to tomm.brz For This Useful Post:
NoHaveMSG (02-17-2021), x808drifter (02-17-2021)
Old 02-17-2021, 08:00 PM   #30
x808drifter
LMGTFY
 
x808drifter's Avatar
 
Join Date: Mar 2016
Drives: 13 FRS, 91 Miata
Location: Lava Town, HI
Posts: 2,776
Thanks: 5,561
Thanked 3,646 Times in 1,625 Posts
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
The real reason most cars don't have one is because
A: It does very little in the long run on a daily car.

B: It's just another thing to go wrong when the typical owner doesn't drain it.

If you have oil in the intake get one. Then find out WHY you have blow by.

IMO a catch can is for monitoring engine health.
Little to no blow-by. Healthy engine.
Lots of blow-by? Something is wrong.

Wiseco has a good article on blow-by and it's causes.
http://blog.wiseco.com/common-causes...il-consumption

TLDR;
Quote:
Despite many of these gadgets that are often can be as much prestige bling items as functional, the best way to control crankcase pressure and vapors is to minimize the leakage past the rings. That will do more to improve performance and operate with a cleaner engine than anything else you can do.
x808drifter is offline   Reply With Quote
The Following 2 Users Say Thank You to x808drifter For This Useful Post:
Dzmitry (02-19-2021), NoHaveMSG (02-19-2021)
Old 02-20-2021, 04:19 PM   #31
scion fr-s
Senior Member
 
scion fr-s's Avatar
 
Join Date: Jun 2017
Drives: 2017 PP BRZ
Location: California
Posts: 201
Thanks: 56
Thanked 53 Times in 43 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Generally, blow-by occurs when oil passes through the piston ring seal. I am sure there are more reasons as to why blow-by can occur. I use catch cans as a way to monitor the health of my engine.
scion fr-s is offline   Reply With Quote
Old 01-19-2023, 12:31 PM   #32
MotoX16
Senior Member
 
MotoX16's Avatar
 
Join Date: Jan 2019
Drives: 2017 Subaru BRZ
Location: Minneapolis, MN
Posts: 199
Thanks: 62
Thanked 95 Times in 54 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by DarkPira7e View Post
I ran one on my NA car. Didn't catch anything unless I was hammering it hard; still didn't accumulate much, but I'd rather keep anything I can catch out of my intake.
I used the Radium PCV side can. I vent the crankcase side to atmosphere and have never had anything show up in that line, NA or turbo. I think each car will have its own propensity for blow-by; I know that mine does so it helped me.

The idea is that oil vapor gets forced into the intake. Our systems recycle this, and oil lowers octane rating- eventually possibly leading to an issue.
If you plan on beating the car, it's worth the small investment to have one on the PCV side at least, in my opinion.
Does your catch can throw a cel? I just took the turbo kit off my car but left the catch can (fbm) because I didnt have the parts to return that to stock, and I'm getting a P0452 (evap) code. Not sure if its something to do with the catch can using the pcv system or not
__________________
2017 Subaru BRZ PP
FBM Turbo Kit: GTX3076R - HRI FlexFuel Tune - 3" Turboback Exhaust - ID1000cc Injectors - Walbro 485 Fuel Pump - FBM Oil Pan - FBM Oil Cooler - Killer B Oil Pickup - FBM Catch Can - FBM Radiator w/Fan Shroud - Clutch Masters FX400 - Verus Clutch Fork/Pivot - IRP Shifter - Cusco Engine/Trans Mounts - RCE Yellow Springs - PS4S 245/40/17
MotoX16 is offline   Reply With Quote
Old 01-19-2023, 01:28 PM   #33
DarkPira7e
Rust bucket enthusiast
 
DarkPira7e's Avatar
 
Join Date: Feb 2017
Drives: 2013 Turbo Firestorm FRS
Location: Vermont
Posts: 3,926
Thanks: 3,196
Thanked 4,093 Times in 2,044 Posts
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by MotoX16 View Post
Does your catch can throw a cel? I just took the turbo kit off my car but left the catch can (fbm) because I didnt have the parts to return that to stock, and I'm getting a P0452 (evap) code. Not sure if its something to do with the catch can using the pcv system or not

No, the catch can shouldn't cause anything like that. Make sure you reconnect the solenoid that was probably connected to your boost control solenoid back to the original CPC under the intake manifold
__________________
Turbo FR-S Build - Build Thread
JDL EL Recirc manifold, Boostlab BL58x Turbo w/ T51R, 17x9 ARC-8, IAG block
DarkPira7e is offline   Reply With Quote
The Following User Says Thank You to DarkPira7e For This Useful Post:
MotoX16 (01-19-2023)
Old 01-19-2023, 02:06 PM   #34
MotoX16
Senior Member
 
MotoX16's Avatar
 
Join Date: Jan 2019
Drives: 2017 Subaru BRZ
Location: Minneapolis, MN
Posts: 199
Thanks: 62
Thanked 95 Times in 54 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by DarkPira7e View Post
No, the catch can shouldn't cause anything like that. Make sure you reconnect the solenoid that was probably connected to your boost control solenoid back to the original CPC under the intake manifold
huh...I did that. I still have a flexfuel kit hooked up too could that have something to do with it? Otherwise I'll start checking for vacuum leaks but I'm pretty sure I got everything hooked back up
__________________
2017 Subaru BRZ PP
FBM Turbo Kit: GTX3076R - HRI FlexFuel Tune - 3" Turboback Exhaust - ID1000cc Injectors - Walbro 485 Fuel Pump - FBM Oil Pan - FBM Oil Cooler - Killer B Oil Pickup - FBM Catch Can - FBM Radiator w/Fan Shroud - Clutch Masters FX400 - Verus Clutch Fork/Pivot - IRP Shifter - Cusco Engine/Trans Mounts - RCE Yellow Springs - PS4S 245/40/17
MotoX16 is offline   Reply With Quote
The Following User Says Thank You to MotoX16 For This Useful Post:
DarkPira7e (01-19-2023)
Old 01-19-2023, 02:42 PM   #35
DarkPira7e
Rust bucket enthusiast
 
DarkPira7e's Avatar
 
Join Date: Feb 2017
Drives: 2013 Turbo Firestorm FRS
Location: Vermont
Posts: 3,926
Thanks: 3,196
Thanked 4,093 Times in 2,044 Posts
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by MotoX16 View Post
huh...I did that. I still have a flexfuel kit hooked up too could that have something to do with it? Otherwise I'll start checking for vacuum leaks but I'm pretty sure I got everything hooked back up
Flex fuel very well could be why, most people just disable the code with tuning software.
__________________
Turbo FR-S Build - Build Thread
JDL EL Recirc manifold, Boostlab BL58x Turbo w/ T51R, 17x9 ARC-8, IAG block
DarkPira7e is offline   Reply With Quote
The Following User Says Thank You to DarkPira7e For This Useful Post:
MotoX16 (01-19-2023)
Old 01-19-2023, 03:38 PM   #36
NoHaveMSG
Senior Member
 
NoHaveMSG's Avatar
 
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 11,118
Thanks: 18,088
Thanked 16,253 Times in 7,346 Posts
Mentioned: 106 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by MotoX16 View Post
huh...I did that. I still have a flexfuel kit hooked up too could that have something to do with it? Otherwise I'll start checking for vacuum leaks but I'm pretty sure I got everything hooked back up
If your flex fuel is evap reference, then yes, this is what is causing the code.
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
NoHaveMSG is offline   Reply With Quote
The Following User Says Thank You to NoHaveMSG For This Useful Post:
MotoX16 (01-19-2023)
Old 01-19-2023, 04:05 PM   #37
MotoX16
Senior Member
 
MotoX16's Avatar
 
Join Date: Jan 2019
Drives: 2017 Subaru BRZ
Location: Minneapolis, MN
Posts: 199
Thanks: 62
Thanked 95 Times in 54 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by NoHaveMSG View Post
If your flex fuel is evap reference, then yes, this is what is causing the code.
It is, thanks. Was able to find the install document laying that out. Appreciate the help!
__________________
2017 Subaru BRZ PP
FBM Turbo Kit: GTX3076R - HRI FlexFuel Tune - 3" Turboback Exhaust - ID1000cc Injectors - Walbro 485 Fuel Pump - FBM Oil Pan - FBM Oil Cooler - Killer B Oil Pickup - FBM Catch Can - FBM Radiator w/Fan Shroud - Clutch Masters FX400 - Verus Clutch Fork/Pivot - IRP Shifter - Cusco Engine/Trans Mounts - RCE Yellow Springs - PS4S 245/40/17
MotoX16 is offline   Reply With Quote
The Following User Says Thank You to MotoX16 For This Useful Post:
x808drifter (01-20-2023)
Old 01-23-2023, 04:40 PM   #38
Overdrive
Sittin' Sideways
 
Overdrive's Avatar
 
Join Date: Nov 2016
Drives: 2016 Toyota FR-S
Location: United States
Posts: 830
Thanks: 885
Thanked 530 Times in 342 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Garage
My car is NA, and for me the can is a good way for me to pay attention to how the engine is doing in between oil changes. It spends most of its life daily driving, typical city and highway mix, and maybe a few autocrosses a year. Seeing how much water, fuel and oil accumulates in the can (especially during the winter) I don't feel it's a waste. Absolutely necessary? No, but not gonna knock anyone for installing one and putting it to good use.

During the winter it seems I get a lot more moisture going through the intake and getting trapped in the can, so I usually end up emptying the can at least once before my oil change, and it looks like someone poured way too much milk in their coffee, with some sketchy looking solid looking chunks of white goop in the bottom. During the warmer seasons I'll usually only have to empty it out once, typically when it's time to change the oil, the color is much darker, and haven't had it get close to being full yet.

Is it going to make an epic, world-changing difference in the long run? Probably not, but I'm not upset about the little bit / lot a bit that it does capture and keep out of the engine.
__________________
-O/D
2016 FR-S, Hot Lava
Overdrive is offline   Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Oil Catch Can Question Alpha86 Engine, Exhaust, Transmission 1 11-27-2019 07:39 PM
catch can question sterling Engine, Exhaust, Transmission 7 07-07-2018 05:07 PM
Catch can Jwkre8 Engine, Exhaust, Bolt-Ons 1 08-04-2017 04:14 PM
Cusco catch can mounting point question dar3d3vil Engine, Exhaust, Transmission 4 05-24-2015 03:41 PM
Catch Can breather line question protpibe Engine, Exhaust, Transmission 1 01-18-2014 03:20 PM


All times are GMT -4. The time now is 06:06 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.