Modding the weight means if it is worse you have to weld again? Try a 120-340 spring, which has also been suggested to me to gain 100-200rpmi trim .5 gram off the base of the weight gain 50-100rpm now i'm at 8150-8200 steady, Sled pull great, still need more top end tho, it struggle to pass 100mph gps.. i was not on hard pack tho..
So the modded 66' (now at 69.152) are doing good in there.. thinking of maybe moving 1/4gram off the base to the tips what you think?
For an additional 150rpm, do i lighten weight more or gave more spring ??
Loll.. sorry’
1.76 gear
120-310 spring
Modded 66’ weight (to 69.152)
50-44fp
140-220 spring
1.5 degree timing keys
Sled is a switch pro-s 16
Studded 1.352 cobra
I’m 180 pound with suit!
It pull 8200 steady on hard pack and top at about 155-160 km/h gps.
Clutch are clean and warm after a pull, belt goes right on top of primary!.