[TR] CRANKCASE VENTILATION

[N197TR4 at cs.com]

List,  

Kas Kastner has another book coming out about mid 2010. One of the chapters 
deals with Crankcase Ventilation. It should be very useful for both race 
and street drivers.

One premise is that you need all of the ventilation that you can get in a 
TR3/4 and it is usually a benefit to any engine.

For my race engines, I use the stock OEM scroll seal carefully located. 
Then I have a system that induces negative crankcase pressure. In addition to 
eliminating crank seal leaks, it reduces the oil and air turbulence in the 
block, and promotes ring sealing. This is not a new idea and certainly not my 
invention. And the cost to do it is negligible.  

My undercarriage went from embarassingly wet at the end of the race 
weekend, to dry, with no significant oil drips during the trailer trip home. A 
welcome relief. So thus it has been for over ten years. 

The system has been approved by SVRA and accepted by VSCDA and others 
during tech. It comes from the stock car and drag strip folks....folks who tend 
to be very clever. Look at the Summit catalog and find Crank Case Ventilation 
kits. The kit contains a system for V-8s so you can do two Triumphs. Just 
do a little welding and add a high temp hose.

Buy Kas' book when it comes out.....it is also going to have an enormous 
amount of performance content.  A book signing is planned at Heartland Park in 
Topeka in August...and the Kastner Cup Race will be held. And much more.

Joe A















Subject: [TR] Crankcase venting.
To: <tr3driver at ca.rr.com>
Cc: triumphs at autox.team.net
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I would like to weigh in a little.  When building a dry sump engine for 
racing
one of the sections of the pump is dedicated to pulling a vacuum off the
crankcase.  The goal is not to equalize pressure between the head and
crankcase but to eliminate the pressure.

Best regards,
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