Frostbite
TY 4 Stroke God
I am SO close to hitting what I feel is a great setup it's scary. I was running great with only the 3/4" allen in the heel but I thought I'd try adding the 1/4" allen with the 3/4" in the heel. My sled seems to rocket from a start (if I can get the traction) and go right to 10,500. My only concern is with the extra weight in the heel will getting traction from the start be the biggest issue? Why wouldn't I want to add the extra weight to the heel?
Now on to primary springs. I am using the stock mountain spring an O/S/O with a preload of 35. It has a total force of 142 and a spring rate of 3.25. I like the fact that I can throw more weight at the primary with the higher total force springs. I am using 4 (I know the max is three but 4 works great) engagement shims too to increase the total force even more.
There's a Yamaha spring (the O/P/O) with a lower engagement of 30 it has a high total force of 137 and the same 3.25 spring rate.
How would this spring work out with the heel loaded up as described above on the Heavy hitters? Would the engine be more prone to bog or would I be less prone to spim out and lose traction; or both? PB
Now on to primary springs. I am using the stock mountain spring an O/S/O with a preload of 35. It has a total force of 142 and a spring rate of 3.25. I like the fact that I can throw more weight at the primary with the higher total force springs. I am using 4 (I know the max is three but 4 works great) engagement shims too to increase the total force even more.
There's a Yamaha spring (the O/P/O) with a lower engagement of 30 it has a high total force of 137 and the same 3.25 spring rate.
How would this spring work out with the heel loaded up as described above on the Heavy hitters? Would the engine be more prone to bog or would I be less prone to spim out and lose traction; or both? PB
Toolman
Extreme
The extra weight at the pivot will cause a big hit at engagement. Feels like a big bump on the bottom, when you have traction. What will happen when you spin out is that your secondary will overshift and drop you down in your powerband. I went to less weight on the pivot and it is a more responsive, rev-happy setup. Also put in a Heel-x secondary to help upshift force and backshift efficiency.
For mountain riding you want as much weight down low as you can put & still have that revy nice backshift feeling. The shims in the primary won,t effect your running rpm,s hardly at all...they have a big effect on preload & engagment. Adding too many of them with an allready big spring will cause your spring to coil bind. That means that it will never shift out no matter how much weight you add cus it will bind & not close the primary.
Frostbite
TY 4 Stroke God
Thanks Turk. I checked for coil bind but I may have missed it's signs. A buddy of mine uses up to 8 shims in his primary. I guess it all depends on the length of the spring?
I do like the huge bottom end hit. But I am loading the motor hard with the 54 degrees inital angle on the helix AND the huge weight in the heel of the Heavy Hitters. I detect no bog what so ever. I think I'll try the lower engagement spring to see how it works.
Won't adding that extra weight on the bottom increase my holeshot capability? Thanks. PB
I do like the huge bottom end hit. But I am loading the motor hard with the 54 degrees inital angle on the helix AND the huge weight in the heel of the Heavy Hitters. I detect no bog what so ever. I think I'll try the lower engagement spring to see how it works.
Won't adding that extra weight on the bottom increase my holeshot capability? Thanks. PB
