Description
These are optional Light Green Kyosho Inferno Big Bore shock springs, this is the Medium length and are used on the front of the rear of the MP9 as well as the front of the MP777 STRR truggy. These are considered a Hard spring rate.
Here is a span>spring rate chart of the available springs for the Kyosho Inferno Big Bores:
These are some guidelines for choosing different spring rates for your setup on your Kyosho Inferno. Remember that every change you make to your setup will effect something else. It is a good idea to experiment by changing settings to get a feel for how changes effect your car with your driving style. Further reading on the subject of chassis set will also help. Try and hang with experienced drivers at the tracks you race at will also help immensely!
You can use different spring rate shock springs to alter your setup. Basically these are the direct effects of changing springs:
Text Version of the above Chart:
Short Length Shocks (S) 70mm | Medium Length Shocks (M) 84mm | Long Length Shocks (L) 95-97mm |
Softer | Softer | Softer |
Green IF350-814 - 8 turns 1.4
wire Orange IF-350-7514 - 7.5 turns 1.4 wire Light Blue IF350-714 - 7 turns 1.4 wire White IF350-1016 - 10 turns 1.6 wire Gray IF350-6514 - 6 turns 1.4 wire Purple IF350-916 - 9 turns 1.6 wire Light Green IF350-816 - 8 turns 1.6 wire Blue IF350-716 - 7 turns 1.6 wire |
Yellow
IS106-9514 - 9.5 turns 1.4 wire Green IS106-914 - 9 turns 1.4 wire Orange IS106-8514 - 8.5 turns 1.4 wire Light Blue IS106-814 - 8 turns 1.4 wire White IS106-1116 - 11 turns 1.6 wire Purple IS106-1016 - 10 turns 1.6 wire Light Green IS106-916 - 9 turns 1.6 wire Blue IS106-816 - 8 turns 1.6 wire |
Green
IF348-1114 - 11 turns 1.4 wire Light Blue IF348-1014 - 10 turns 1.4 wire White IF348-1316 - 13 turns 1.6 wire Purple IF348-1216 - 12 turns 1.6 wire Light Green IF348-1116 - 11 turns 1.6 wire Blue IF349-1016 - 10 turns 1.6 wire Red IF348-916 - 9 turns 1.6 wire |
Harder | Harder | Harder |
Explanation for the spring rates in the charts above:
The part number of the Kyosho spring has the wire thickness and number of turns included in it.
For example:
IF350-716 equates to:
7 turns of 1.6 thick wire.
This can be extrapolated to all the springs and you will see the pattern evolve for the spring rates.
Thicker wire = stiffer spring
More turns in wire = softer spring
Just think of this like a spring is a piece of wire. If you straightened out the wire and held it on one end, the longer it is, the easier it would bend by pushing on it from the opposite end. The same would hold true for a thinner piece of wire, it would be easier to bend as well. This is how springs are actually working. The longer the wire the easier it is to bend and therefore the softer spring rate it has. An advantage of lower turns and thinner wire is you can create a spring with lighter weight vs. a spring with thicker wire and more turns. Keep this in mind when choosing springs to run as well.
I hope this explanation helps rid some confusion about how the above charts work.