Excessive Blow BY
Thread Starter
Instructor
Joined: May 2013
Posts: 184
Likes: 2
Excessive Blow BY
I need help trying to figure out why my c6 vette has so much blow by. Here are my components
Cam
A&A Supercharger Ti
440 ci LS7 wetsump not dry
Elite Catch Can on the intake side
I just purchased a brand new LS7 440ci and the shop that installed the new engine says that he has never seen that much blow by and can't figure out why. It happened in my last setup with the LS3. If anyone has any ideas on what causes so much oil to go through my intake please advise. I'm thinking about putting an 2nd catch can on the dirty side. I don't know what causes soo much crank pressure
Cam
A&A Supercharger Ti
440 ci LS7 wetsump not dry
Elite Catch Can on the intake side
I just purchased a brand new LS7 440ci and the shop that installed the new engine says that he has never seen that much blow by and can't figure out why. It happened in my last setup with the LS3. If anyone has any ideas on what causes so much oil to go through my intake please advise. I'm thinking about putting an 2nd catch can on the dirty side. I don't know what causes soo much crank pressure
Former Vendor
Joined: Feb 2012
Posts: 26,512
Likes: 351
From: ST. CHARLES IL
What kind of catch can set up are you running?
On higher power set ups we usually try to pull from both valve covers. Also a dual port can pulling vacuum from the manifold and the intake tube. If you just pull vacuum from the manifold and wot you won't have any vacuum. So when you're full throttle you don't have anything pulling out the crankcase pressure.
On higher power set ups we usually try to pull from both valve covers. Also a dual port can pulling vacuum from the manifold and the intake tube. If you just pull vacuum from the manifold and wot you won't have any vacuum. So when you're full throttle you don't have anything pulling out the crankcase pressure.
