Performance Trends, Inc.

Producing Quality Computer Tools for Racers and Engine Builders since 1986

Re: Performance Trends Newsletter (updates)

To: Visitors to Performance Trends Website

Subject: Product News/Updates, October 2024

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1) Preliminary Spring Wiz v1.1B  We have developed an update to our popular Spring Wiz software.  It has not been officially released, but we can offer it as a beta version for those who want to purchase this update.  The new features include:

Standard and Plus Version new features:

1. New types of reports can be printed.
2. New checks are made to see if inputs make sense.
3. New Calculation utilities to calculate inputs from other settings.
4. New output on the main screen of Net Valve Lift, which is the same as the existing Gross Valve Lift, but with the lash subtracted out.
   
   

Plus Version new features (not in Basic version):

1. Fatigue and Stress Analysis reports have been added, to estimate the life of the springs. 
2. Beehive and Tapered springs have been added as Spring Types. 
3. The Calculation utility for Valve Mass now has an adjustment for standard Cylindrical, Tapered or Beehive springs. 
4. Detailed, High Resolution Graphs for the Frequency Analysis screen have been added. 

for PDF file with detailed info on the new v1.1B.

for info on the current v1.1A.

If you own the current standard Spring Wiz v1.1A, the standard version v1.1B is a $65 update charge.  If you own the v1.1A Plus, the update to v1.1B Plus is $100.  If you own the standard v1.1A and want to update and upgrade to the v1.1B Plus, it is $150.

to send us an email about your updating options.  Include your purchase info so we can find you in our data base.

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2) Cam Analyzer Troubleshooting Movie We've gotten questions about how to tell if your cam measurements are accurate.  We put together a movie showing what to look for in the acceleration graph to spot possible problems.