ACORN RACING
Acorn Racing USA takes pride in the grinding of the top & bottom of the springs that have kept some heat out before use. Some springs are ground so hard that the top of the spring that is ground is blue in color and has created a lot of heat from grinding before even be used that makes the spring weaker.
We are in testing with our NEWER clutch spring AR-SHP07and this spring will be a little longer than the AR-MSR06 using a similar size wire. The length will give you a little more spring rate that was used in Homestead FL. for the 1/8 Worlds in 2011. Some racers have mentioned that they have had some clutch springs coil bind and we feel that this will solve the problem but give the racers another selection of stiffer clutch spring for performance using on high speed tracks.