SPOHN'S Journal II Track Demon Reborn

Originally Posted by synolimit

I've never known a race track that will allow this during tech inspection. If the motor blows oil has a direct line out of the motor and onto the track and your headers. I've only known OEM setups with a catch can not vented to atmos to be legal. If the motor goes everything's contained and will run through the motor and crop dust everyone as you blow smoke out the tail pipe. At least then the oils had a chance to burn up a little. Yes throwing a rod out the block will contain no oil but that's if it happens and un-foreseeable. Yes I also know that's not the normal flow of air when hooked up but a blown motor can change the dynamics of the flow. I personally wouldn't run anything to atmos on the track. On the street I do.




Pic?





On other cars I've let it just come out if it needed to; vented to atmos, never had issues. I do think you'd run lean though "if" it were still attached to the manifold because it'd be drawing in unmetered air.



Except the MAF sensor already accounted for the air brought in through the real air filters. That's not fine as pictured because the manifold will now bring in air into the motor from two (4 total) different locations. One metered, one not. Only way it will work is a 100% capped off system letting the pcv's just open from pressure building up behind them, or OEM with a OCC. as stated though, Its not track legal to just let crank pressure blow out to atmos. Oil on the track or headers if the motor goes = burned alive.