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Join Date: Oct 2010
Location: San Martin, CA
Posts: 4,643
Originally Posted by KTL View Post
Read this and maybe you'll reconsider. The folks who used that engine in an RSR left the damper on there for a reason, despite it being a detractor from ultimate performance.

Porsche 6 Cyl Harmonic Engine Failure
The reality of the situation is that very few race engines using the 964 crankshaft keep the harmonic balancer. My race engine had the balancer but we decided to remove it because we wanted to slow down the fan some by going to a 125mm pulley. Before we did this I did some checking with guys that build 100+ HP per liter race engines to get their take on it. All of them said removing the harmonic balancer was not a problem.
Scott Winders
PCA GT-3R #3
Old 09-30-2016, 09:14 AM
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