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, September 2023

    1. Compression Ratio Calculator Movies
    2. Get Your Cams Measured
    3. Last August's Newsletter

 

to visit our www.performancetrends.com home page

to visit our    facebook page and "like" us.

for our full You Tube channel

-------------------------------------------

1) Compression Ratio Calculator Movies  If you are most any type of engine builder, our Compression Ratio Calculator is a great addition to your toolbox.  It calculates compression ratio with as few inputs as possible, or by taking most all details into account, and something in between.  It also calculates and checks other critical engine specs like deck height "stack up" for piston compression height, rod length, etc.  Then it has more advanced Plus and Pro versions with even more features.

Well, we've just put some movies up on our youtube page showing you some of the different features.

  to see these movies

 

The Compression Ratio Calculator will make sure you don't make simple math errors, saves your data for access in the future, and provide a professional printout for your customers.  The Plus and Pro version lets you include your company logo (a jpg file) on your printouts.  And it can link up to our Engine Build Log Book, Engine Build Log Book Pro or our Engine Analyzer Pro Enterprise Edition software for organizing the compression ratio inputs for either of these three programs.  for info on how the Engine Analyzer Pro "talks" to the Compression Ratio Calculator, Figures A77 through A80, pages 295-298.

 

The program can also answer more complicated questions like:

  1. What's the piston dish volume for a tapered .200" dish vs a .220" dish with radiused edges, and what's the difference in compression ratio?  Pro version only.
  2. How much should Dynamic Compression Ratio and Cranking Compression change for this engine build if I advance the cam 4 degrees?
  3. What's the change in rod bolt stress by going from a 5.7" to 6.0" rod length at 6000 RPM?  at 7500 RPM?  Plus and Pro versions only.
  4. What piston dish volume, chamber CCs, or head gasket thickness do I need to get a 10.00 compression ratio for this current engine build?
  5. If I cc the piston top with the piston .750" down the bore, what's the dome volume?  Pro version only.
  6. What's the change in chamber CCs and compression ratio if I sink the valves .010" farther into the head?  Pro version only.

These and thousands more questions can be answered by the Compression Ratio Calculator.

PRO Version's Calculated Piston Dome CCs from Geometry, just one of many piston volume calculation screens
 (click image to enlarge)

 

for more info on our Compression Ratio Calculator 

-------------------------------------------

2)  Get Your Cam's Measured  One of our customers responded when we asked if anyone was able to measure other engine builder's cams.  Mark Balinski Sr. of Dymaxion Design & Engineering of northeast Illinois says he can do it and also test valve springs.  He can do most V8s, 4 cylinders, and many other engine designs.  If you want something measured, contact Mark for a quote, at 847-507-7014 or markbalinskisr@gmail.com  .

 

  if you want to buy your own Cam Test Stand, starting at $2499

   if you want to buy your own Valve Spring Tester, starting at $1449

-------------------------------------------

3)  Last August's Newsletter  Here are the topics covered in our previous newsletter.  If you would like another copy of August 2023's newsletter (or any previous newsletter) for detail on these topics, visit our website at: Performance Trends Newsletters 

  1. New Engine Log Book Pro Feature
  2. Dyno DataMite v4.2B Released
  3. Craig Ulmer - More Pulling Wins
  4. Labor Day Hours
  5. Last July's Newsletter

Performance Trends reserves the right to discontinue, update, or modify its product line and pricing at any time.