The makings for RAW HORSEPOWER ...
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On April 27th, Harold Schmidt and Nelson Renz put on a 911 Tech Session.  The impetus was the ongoing rebuilds of both Nelson's and Harold's 911 race car motors due to failures during last year's racing season.  While the failures were certainly unfortunate, a positive consequence was the opportunity for members to get a first-hand explanation of how the parts of a flat-6 fit together, and to learn about some of the intricacies of generating maximum horsepower from this finely engineered masterpiece that defined Porsche for so many years.  And although the focus of the session was clearly the inside of a 911 engine, there was plenty of additional information to be gleaned about making the P-car stick, turn in, and brake.

Click to view full-sized image Left:  The soon-to-be-history cylinders and pistons.

Right:  Harold explains how compression ratio is a function of cylinder head displacement.
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Click to view full-sized image Left:  Harold shows a 911 connecting rod complete with those famous "unbreakable" Carillo rod bolts.

Right:  A consequence of a Carillo bolt failure at 6,000 RPM.
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Click to view full-sized image Left:  Can you say "downforce" boys and girls?

Right
:  Which of these things shouldn't be mixed?  That's right ... a Datsun and a Porsche.
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Our thanks to Harold & Nelson for hosting this session.

 

Page last updated: June 28, 2004
© 2004 PCA Polar Region and Webmaster Paul Conquest.  All images and content reserved.