I have the spring rates all sorted out.
I have 4 different zero stall springs. (higher rate are still very low stall due to the engagment # and all 2.5-2.6 inches tall)
they will be VFJ#1 to VFJ#4 And are for use for Teryx and ATV alike
Spring rates are measured exactly at 2.50/1.25 of an inch compressed heights.
VFJ#1 is 10/170 Low stall, Mid-high rate
VFJ#2 is 10/220 Low stall, High RPM
VFJ#3 is 20/250 Low stall, Very High rpm
VFJ#4 is 30/265 Low-Mid stall, Super High RPM
Next I have the higher stall and Atv oriented springs.
VFJ #5 is 55/160 High stall, mid RPM
VFJ#6 is 25/175 Medium stall, mid-high rpm
VFJ #7 is 70/260 High stall, Super High RPM
All these measurments are EXACT. I'll post pics of them when I color code them over the weekend
That's very close to what I have now. I just can't help but think more secondary would help hold the RPM in the sand and on hills. I know in the sleds, we put as much secondary as we can and it makes a big difference in hill climbing. Helps the clutch to back shift. I think I might try one I have a few here in stock, I'm gonna throw a 138 / 248 in it see what it does in my test strip.I think he will suggest the #4. I have that one an like it so far. I believe that is the one made for the V's.