high rpm evac ideas
Thread Starter
Joined: May 2004
Posts: 1,593
Likes: 267
From: Halfway back on the Highway to Hell...again!
high rpm evac ideas Needing a better evac for high RPM. Running a 408 with BTR Stg 4 cam. Normal driving and somewhat hard runs everything is fine. But its blowing the dipstick at WOT @ 7,000 rpm.
I have a catch can running from both valve covers in into the intake. I tried just letting it breathe to the atmosphere as well.
I ran it up to 6500 quite a few times and no oil in catch can dipstick stays put.
If I run it up to its shift point, blows dipstick out.
I have a catch can running from both valve covers in into the intake. I tried just letting it breathe to the atmosphere as well.
I ran it up to 6500 quite a few times and no oil in catch can dipstick stays put.
If I run it up to its shift point, blows dipstick out.
11 Second Club
Joined: Mar 2012
Posts: 1,541
Likes: 15
From: South Florida
So with no connections on valve covers along with removing oil cap it still blows dipstick? Besides a vacuum pump maybe get some custom valve covers with bigger ports? Interested. How much power does it make. What size headers are on it?
Thread Starter
Joined: May 2004
Posts: 1,593
Likes: 267
From: Halfway back on the Highway to Hell...again!
It's a NA 408. Made 486 untuned. But can't finish tune until I fix this.
It has the Holley Valve covers that coils mount directly to. The Headers are 1-7/8"
Right now its set up as both VCs are routed to catch can which goes to Intake port behind TB.
Thinking maybe add one more hose from valley cover to catch can as well.
But I'm needing to dyno this car soon and need to fix this issue. Last time on dyno it blew out and had a little fire when oil hit headers.
It has the Holley Valve covers that coils mount directly to. The Headers are 1-7/8"
Right now its set up as both VCs are routed to catch can which goes to Intake port behind TB.
Thinking maybe add one more hose from valley cover to catch can as well.
But I'm needing to dyno this car soon and need to fix this issue. Last time on dyno it blew out and had a little fire when oil hit headers.
