View Single Post
Old 06-22-2024, 03:04 AM   #6
AZIROC

 
Drives: '86 IROC-Z '18 ZL1
Join Date: Jul 2019
Location: Arizona
Posts: 935
So I had this issue last year. Same scenario. 3 laps in and it looks like I blew my engine cause of all the smoke **I even have a post somewhere about it** needless to say I was having a huge oh shit moment. Then when i got back to the pit I was now confused cause everything LOOKED right.

Anywho, the issue was the catch can version is wrong. For zl1s/boosted applications, you need the mighty mouse MILD version with the recirculating head (not the vented head).

What happens with the wild version is the exact opposite of what the catch can is suppose to do. Under hard acceleration, specially turning, and under positive boost pressure, the oil gets SUCKED out of the driver side valve cover INTO the catch can and then forced into the blower/intake. Oh...and any excess gets shot out the vented top and all over your engine bay and the potential of an engine fire goes through the roof.

The correct setup is again, the mild with recirculating top. Do that, no issues.


Edit:

Saw you have aftermarket valve covers. I hate to say it, but sell them and get OEM ones. Most aftermarket valve covers, while look amazing, aren't as good as oem baffling.


Oh...and your coolant is low. Lol
AZIROC is offline   Reply With Quote