PCV delete?

Brettc83 · 01-03-2021, 09:09 AM

Anyone deleting pcv system on an n/a LT1? Just venting the valve covers externally (to a vented catch can) and capping off valley port and intake port?
Technically it shouldn't be allowing unmetered air in because it is no longer a closed system with intake vacuum evacuating the crankcase pressure. I've seen high ram pictures with the valley port plugged so figured someone here has done something like this.

Should solve any chance whatsoever of oil/acids re-entering the engine and stays in a catch can instead. But I do understand vacuum in crankcase is a good thing for ring seal. Any issues seen without that vacuum on factory low tension rings?

Brettc83 · 01-05-2021, 08:00 PM

Guess not lol

95 imp · 01-05-2021, 08:12 PM

I am thinking about doing the same thing thing... I haven't got under the hood to test it all though.

Brettc83 · 01-05-2021, 08:14 PM

Should work. No different than old school valve cover breathers. Just losing the crankcase vacuum. Only part I'm not sure about

95 imp · 01-06-2021, 03:37 AM

Quote:

Originally Posted by Brettc83

Should work. No different than old school valve cover breathers. Just losing the crankcase vacuum. Only part I'm not sure about

Should, It works just fine on my 05 Dmax. They have a similar problem of coking valves since they are DI too.

I just do not know if GM came up with some sort of monitoring system for it now.

Brettc83 · 01-09-2021, 04:50 PM

Guess there's only one way to find out! Was hoping someone would have some input, especially on crankcase vacuum

01-03-2021, 09:09 AM	#1
Brettc83 Drives: 2018 Camaro 1ss Join Date: Jan 2021 Location: Thompson CT Posts: 8	PCV delete? Anyone deleting pcv system on an n/a LT1? Just venting the valve covers externally (to a vented catch can) and capping off valley port and intake port? Technically it shouldn't be allowing unmetered air in because it is no longer a closed system with intake vacuum evacuating the crankcase pressure. I've seen high ram pictures with the valley port plugged so figured someone here has done something like this. Should solve any chance whatsoever of oil/acids re-entering the engine and stays in a catch can instead. But I do understand vacuum in crankcase is a good thing for ring seal. Any issues seen without that vacuum on factory low tension rings?

01-05-2021, 08:12 PM	#3
95 imp Dumb Ass Deluxe Drives: A Tricked Out Mountain Bike Join Date: Jun 2019 Location: Arizona Posts: 1,963	I am thinking about doing the same thing thing... I haven't got under the hood to test it all though. __________________

01-05-2021, 08:00 PM	#2
Brettc83 Drives: 2018 Camaro 1ss Join Date: Jan 2021 Location: Thompson CT Posts: 8	Guess not lol

01-05-2021, 08:14 PM	#4
Brettc83 Drives: 2018 Camaro 1ss Join Date: Jan 2021 Location: Thompson CT Posts: 8	Should work. No different than old school valve cover breathers. Just losing the crankcase vacuum. Only part I'm not sure about

01-09-2021, 04:50 PM	#6
Brettc83 Drives: 2018 Camaro 1ss Join Date: Jan 2021 Location: Thompson CT Posts: 8	Guess there's only one way to find out! Was hoping someone would have some input, especially on crankcase vacuum

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