Crank pressure / PCV questions.
Thread Starter
10 Second Club
iTrader: (19)
Joined: Feb 2004
Posts: 2,542
Likes: 2
From: Alexandria La.
Crank pressure / PCV questions. I have the original PCV system in place and a breather on the passengers side valve cover. I'm only making 5 to 8#'s but figured since what I have done was too easy it had to be wrong lol.
I had crank case pressure problems when I went FI and after my timing cover seal pushed out on the dyno I vented the rocker cover with a breather and it solved my crankcase pressure problem but was making a oil mess on the engine. So I made a catch can and vented both rocker covers to the can and ditched the pcv system. So the breather is easy and you didn't do any thing wrong it just might get messy. Here's the link to my thread about my problem.
https://ls1tech.com/forums/forced-in...rs-inside.html
https://ls1tech.com/forums/forced-in...rs-inside.html
Thread Starter
10 Second Club
iTrader: (19)
Joined: Feb 2004
Posts: 2,542
Likes: 2
From: Alexandria La.
Thread Starter
10 Second Club
iTrader: (19)
Joined: Feb 2004
Posts: 2,542
Likes: 2
From: Alexandria La.
I had crank case pressure problems when I went FI and after my timing cover seal pushed out on the dyno I vented the rocker cover with a breather and it solved my crankcase pressure problem but was making a oil mess on the engine. So I made a catch can and vented both rocker covers to the can and ditched the pcv system. So the breather is easy and you didn't do any thing wrong it just might get messy. Here's the link to my thread about my problem.
https://ls1tech.com/forums/forced-in...rs-inside.html
https://ls1tech.com/forums/forced-in...rs-inside.html
Trending Topics
My valve covers are from a truck, and the driver's side has a PCV opening on the rear of the cover. I plugged the valve in, ran the stock line to it, then the other end has one of those 2" ricer filters from Autozone. I was blowing oil out the back and this took care of it. I run a regular breather on the passenger's side cover.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Yep everything becomes an oily mess. The fill cap is the worst. Try replacing the fill cap with something that seals and get a vented breather. If you're really creative (and have a centrifugal supercharger/turbo) you can run one way valves from the intake manifold to the PCV and use the compressor as a vaccum source when you're under boost. Just block the air flow from the manifold back to the PCV and when you're under boost it'll suck from the compressor. I'm not sure about sending oil through the compressor though?
There's alot of good info in here: https://ls1tech.com/forums/generatio...ting-ok-4.html
Thread Starter
10 Second Club
iTrader: (19)
Joined: Feb 2004
Posts: 2,542
Likes: 2
From: Alexandria La.
if you put a cover on them, then it will just drip out don't you think?
There's alot of good info in here: https://ls1tech.com/forums/generatio...ting-ok-4.html
There's alot of good info in here: https://ls1tech.com/forums/generatio...ting-ok-4.html
I was leading towards doing the catch can set up.
I was thinking about running two lines to two breather tanks. I'm sure he uses much larger inlet lines though, probably -10 or -12, no?
I was thinking about running two lines to two breather tanks. I'm sure he uses much larger inlet lines though, probably -10 or -12, no?