I been thinking since the b20b block does not have a pcv valve and I’m going vtec (more compression, higher revving, more HP) would it be worth it? Giving the block some relief. Reliability for that matter.
Set up is
stock gsr head
stock 9:6:1 b20b block, with the gsr head bumps to 10:2:1
going to get tuned,
arp head studs,
GE vtec kit.
Type R water pump/ timing belt.
It can’t hurt.
There should be two big allen-bolts on the back of the block. You can take one of them out and use that as your vent… Or do it in the valve cover, just be sure you install it where it is covered by the baffle plate. Otherwise you’ll get a TON of oil in your can.
Or you can do both… Use the valve cover as the vent, and run a line from the bottom of the can to the back of the block for a “drain-back”. That way you don’t have to empty the can much, if at all.
On my B20VTEC i just ran two ports out of the “block offs” like unified112 said. It vents the block plenty for mild to moderate systems. Just make sure you run a catch can and keep an eye on how fast it fills.
this helped me figure it out. http://www.hondatuningmagazine.com/tech/htup_0808_honda_crankcase_ventilation_system/viewall.html
Show me a picture yeah?
I think I seen this before, it’s basically 2 lines running from the back of the block to the catch can and another line from the bottom of the catch can connected to a line from one of the other 2 with a T adapter to drain it back to the block right?