Technical Info

Retainer Strength Testing

Mar 21, 2012

This is a simple graph to show how PAC Racing Spring Retainers are evaluated and designed and tested for strength. This shows the pull test strength of several different configurations.

2011 AETC Conference

Dec 01, 2011

We were honored to present at the 2011 AETC technical symposium. Mr. Jason Youd prepared and presented an example of what factors go into valve spring life and performance.

Valve Spring Frequency Testing

Mar 15, 2007

This is an example of how frequency of a spring is verified to the design.

Suspension Spring Dual Rate Spring Stacker Chart

Mar 01, 2006

Take the complications out of stacking springs with this handy chart, use this as tool to help determine the combined rate of two springs stacked on top of each other.