crankcase routed to exhaust is illegal!

[Eric Kelcher]

I realized I put this in the tech section I meant to put it here but there were replies so I didn't delete over there.


Just for information there are some threads wandering around, one of which is on the WERA site,  talking about the added hp of crankcase scavenging..  
 
Just for everyone's information routing the crankcase anywhere other than into the air box or intake stream is a saftey violation repeat this is not a SS legal, SB or GP legal mod it is a safety violation as if/when the engine pukes it deposits its oil into the exhaust and out onto the track.
 
There are other methods that could be legal but direct routing into the exhaust is NOT!!!
 
 
FYI here is the rule.
 
5.2.15 On 4 stroke machines, crankcase ventilation must be routed into a heat resistant
catch can of at least 350cc capacity or the air box.
A. If ventilation is routed into the air box, any drains from the air box must be sealed.
B. If ventilation is routed to a catch can, the overflow tube from the catch can must
be routed into the intake area of the carburetors so that any overflow from the
catch can will be drawn into the engine.
C. Radiator overflow and battery vent tubes may be routed into a separate catch can
that need not be vented into the intake area.
D. Final approval of the catch can system rests with the Tech Inspector.