Test Results: Guldstrand Mod

[TheBandit]

I took this data after talking with Marcus at SC&C. Over the phone he told me that the camber curves floating around on the Internet for the G-mod were wrong. I could only assume he was talking about David Pozzi's curves, but he didn't say. All he said was that more beyond the Guldstrand mod was needed to get to a modern camber curve. To paraphrase, "the Guldstrand mod only gets you halfway there." I was a little shaken by this contradiction, so I decided to test it myself.

Here are my results:



This is as measured on my '70 Nova, completely stock except for the Guldstrand mod (via templates directly from Dick Guldstrand: you can see exactly how I did it here: https://www.pro-touring.com/showthre...-hard-way-quot

Here is how I measured:
- digital angle finder (+/-0.1deg repetability) on the brake rotor
- tape measure to nearest 1/16th from the floor to a mark on the center of the wheel bearing cap
- cycle suspension with a jack, move to a new position and measure, repeat
- 0 determined by measuring the position where the LBJ is approximately 3/8" below the average position of the front and rear bolts of the LCA frame pivots
- data includes 3 cycles completely up and down with approximately even spacing between measurements to collect a locus of points
- max and min ride are where the bumpstops just made contact with the frame
- frame supported by jackstands, suspension assembled and tight, approximately steered straight







I have a significant portion of travel where the camber is relatively constant (between -1 and -3.5) and even hooks back a bit. What do you think of these results?