[Fot] Valve cover breather

[N197TR4 at cs.com]

For a TR4, it might be the lesser of two evils....

I really see no evidence of oil in my exhaust pipe, believing it likely burns 
off before getting to the end of the pipe.

I have no scientific or empirical proof of anything...........

Joe A



> I'm very surprised any Vintage organization would allow any crank case 
> venting connecting to the exhaust system. After all we are talking about oil 
> being injected in the stream after combustion. It has been prohibited by SCCA as 
> long as I can remember, however there appears to be no mention in the 1972 
> GCR rules under the "oil catch tanks" section. The second oldest GCR that I 
> have on hand (2003 17.26) states the exact wording as the 2008 GCR: "A crankcase 
> vacuum breather that passes through the oil catch tank(s) to exhaust systems 
> or vacuum devices that connect directly to exhaust systems is prohibited."
>  
> I have yet to run my TR4 hard enough or long enough but my VW Rabbit can put 
> a half a quart in the catch tank on a hot day during a 20 minute session. On 
> a 3 hour enduro we have to add a quart at a pit stop on a Scirocco and 
> finish almost a quart low. Both engines are very strong with minimal leak down.You 
> wouldn't want to be following me with that going out my tail pipe.
>  
> Dave Y.
> 

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