Ok guys, here are my preliminary findings on converting Timeform ratings to Beyers, Beyers to T-graph and Timeforms to T-graph. I developed a formula similar to the one used to convert Celsius to Fahrenheit and vice-versa. I found a point of equivalence for both Timeform and Beyer equal to a zero in TG. I then found the difference in the scales so for every X points above or below this point of equivalence you add or subtract Y points to the other scale. For my data I compared the Beyer, TG or Timeform rating earned by each horse for the same race(running line).
This is based on a sample size of 100 races. There may be slight modifications to the formulas as I incorporate more data. This is a work in progress so please give it a dry run before using it in wagering.

Here are the points of equivalence:
(Beyer) 101 = (TG) 0, (Timefrom) 116 = (TG) 0

Ratio Scales:
TG/Beyer = 1/3, Timeform/Beyer = 1/1, TG/Timeform = 1/3

So……..
To convert Beyers to TG:
TG = (101-Beyer) divided by 3
Example) If Beyer = 107, TG = (101-107) / 3
TG = -6/3
TG = -2

If Beyer = 92, TG = (101-92) / 3
TG = 9/3
TG = 3

Timeform to Beyer:
Beyer = Timeform – 15
Example) If Timeform = 120, Beyer = 120 – 15 = 105

Timeform to TG: Just convert Timeform to Beyer and then convert Beyer to TG

Good luck everyone,
Bob