PCV hose diameter?

bcfromfl · 08-04-2019, 09:23 AM

I've tried to use the search extensively, and haven't found an answer. I'm upgrading to TopZ's A2A system soon, and am going to add a dual catch can system with breathers. I found a good-looking catch can from Damond Motorsports, and they have two models: one with 3/8" barbs, and the other with 5/8".

The only somewhat helpful info shows PCV hose sizes for our car in mm, but I'm still unclear. Also, the FSM is no longer online (at least where I can find it). Which would be the best match...3/8" or 5/8"?

My speed shop recommended using MickeyMouse catch cans, but I can't get them to respond to their web form for questions. Anyone have an alternative phone number for them?

Thanks!

jchammond · 08-04-2019, 10:02 AM

Quote:

Originally Posted by bcfromfl

I've tried to use the search extensively, and haven't found an answer. I'm upgrading to TopZ's A2A system soon, and am going to add a dual catch can system with breathers. I found a good-looking catch can from Damond Motorsports, and they have two models: one with 3/8" barbs, and the other with 5/8".

The only somewhat helpful info shows PCV hose sizes for our car in mm, but I'm still unclear. Also, the FSM is no longer online (at least where I can find it). Which would be the best match...3/8" or 5/8"?

My speed shop recommended using MickeyMouse catch cans, but I can't get them to respond to their web form for questions. Anyone have an alternative phone number for them?

Thanks!

3/8” will be fine- just use a hose designed for pcv; that way it doesn’t collapse

Pretty sure oem is close to 3/8”(9.5mm)

jchammond · 08-04-2019, 10:06 AM

Also you can just remove one of the hoses from front of intake & slip an open end wrench over it (behind nipple) & size it that way....but I’m pretty sure it’s closer to 3/8”

SouthArk370Z · 08-04-2019, 11:03 AM

Quote:

Originally Posted by bcfromfl

... Also, the FSM is no longer online (at least where I can find it). ...

https://www.nicoclub.com/FSM/370Z/Coupe/2015/

Link in my sig points to a directory a few levels up, if you want to explore.

bcfromfl · 08-04-2019, 06:29 PM

Thanks everyone for the help!

bcfromfl · 08-06-2019, 03:37 PM

OK, so, Damond will put together a package for me of what I need, but since they don't make a specific kit for the Z, I'll need to tell them what to include. To be on the safe side, how many feet of hose, and how many L's and/or T's should I tell them?

Thanks!

Girald · 08-10-2020, 12:23 AM

oem, you should find that the PCV is at 3/8 ID and the valve cover breather is 5/8ID If you buy the CJ Motorsports valve delete, you will be running -8an 1/2ID to a catch can ( in most cases)

08-04-2019, 09:23 AM	#1 (permalink)
bcfromfl Enthusiast Member Join Date: Nov 2016 Location: Youngstown, FL Posts: 256 Drives: 2015 PW Nismo 6MT Rep Power: 9	PCV hose diameter? I've tried to use the search extensively, and haven't found an answer. I'm upgrading to TopZ's A2A system soon, and am going to add a dual catch can system with breathers. I found a good-looking catch can from Damond Motorsports, and they have two models: one with 3/8" barbs, and the other with 5/8". The only somewhat helpful info shows PCV hose sizes for our car in mm, but I'm still unclear. Also, the FSM is no longer online (at least where I can find it). Which would be the best match...3/8" or 5/8"? My speed shop recommended using MickeyMouse catch cans, but I can't get them to respond to their web form for questions. Anyone have an alternative phone number for them? Thanks! __________________ Michelin PS4S 275/35F, 305/30R /// Exhaust: Motordyne ART Pipes, Garageline X and Mid-Pipe Combo /// Clutch: ZSpeed EZ-Street Stage II, RJM HD Master Cylinder

08-04-2019, 10:06 AM	#3 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 58 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684395	Also you can just remove one of the hoses from front of intake & slip an open end wrench over it (behind nipple) & size it that way....but I’m pretty sure it’s closer to 3/8” __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

08-04-2019, 06:29 PM	#5 (permalink)
bcfromfl Enthusiast Member Join Date: Nov 2016 Location: Youngstown, FL Posts: 256 Drives: 2015 PW Nismo 6MT Rep Power: 9	Thanks everyone for the help! __________________ Michelin PS4S 275/35F, 305/30R /// Exhaust: Motordyne ART Pipes, Garageline X and Mid-Pipe Combo /// Clutch: ZSpeed EZ-Street Stage II, RJM HD Master Cylinder

08-06-2019, 03:37 PM	#6 (permalink)
bcfromfl Enthusiast Member Join Date: Nov 2016 Location: Youngstown, FL Posts: 256 Drives: 2015 PW Nismo 6MT Rep Power: 9	OK, so, Damond will put together a package for me of what I need, but since they don't make a specific kit for the Z, I'll need to tell them what to include. To be on the safe side, how many feet of hose, and how many L's and/or T's should I tell them? Thanks! __________________ Michelin PS4S 275/35F, 305/30R /// Exhaust: Motordyne ART Pipes, Garageline X and Mid-Pipe Combo /// Clutch: ZSpeed EZ-Street Stage II, RJM HD Master Cylinder

08-10-2020, 12:23 AM	#7 (permalink)
Girald Base Member Join Date: Jun 2017 Location: Denver Posts: 135 Drives: 15' 370z SpTech 6MT Rep Power: 3363	oem, you should find that the PCV is at 3/8 ID and the valve cover breather is 5/8ID If you buy the CJ Motorsports valve delete, you will be running -8an 1/2ID to a catch can ( in most cases) __________________ AAM tt'ed // Soon: Moving back to the East Coast

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