Well, lets just say don't worry... because if MeisterR coilovers isn't doing what you want, you will know exactly who to call. :lol:
The thing is you got to look at the springs as well as the damper, because they work together dynamically.
A good case is recently I have been helping a Mini Cooper race car.
They weren't happy with their current suspension, and ask me what can I do.
So I work out the dynamics, and it came back at 8/8 for a race car on semi-slick to achieve the wheel frequency I feel will work.
He say all the fast car last year was on 8/10 in order to help the rear rotate better.
I check the numbers, check it again, and say go with 8/8...
That is what my dynamic model is telling us will work, trust us on it.
If it doesn't work, let me know and we can make changes after the 1st test day.
So off he went, came back and said:
"The rear damper feels much stiffer, overall feels really good, the rear rotate very well, and he still have more adjustment available."
And yes, they will be using MeisterR for 2017. :smthumbup
This is a good case showing how good "compression" force adjustment makes all the difference in the world.
Because dynamically that is how you dial out the understeer.
The previous year rear damper didn't have enough damping force, and so they have to use "heavier" springs to mimmic the lack of damping force.
While behind the seat it feels similar; it function completely different dynamically.
Using harder springs don't change how the tyres are loaded, and cannot change for different surfaces.
There are lots of other problem when you just slap in harder springs also, but lets leave that for another discussion.
The damper actually changes how the loads are applied to the tyres, and therefore directly affect the traction the tyres can generate.
You can also adjust the damping, meaning you can change for different surfaces such as wet surfaces.
This also mean you can adjust the understeer / oversteer bias using the damping.
Anyways... slightly off topic... but basically the 7/8 will be fine.
For the EVO 4 - 9, you want / need a slightly stiffer rear springs.
We have good reason to do what we do, we didn't just pick a number out from the sky. :coolsm:
Jerrick