What is the actual intention of building a 0 rebound shock for a EP touring car, vs a making a shock with some rebound? Isn’t a 0 rebound shock will rely entirely on the shock spring in this case, and the WT of the shock oil doesn’t matter anymore in this case?
Building shocks with zero rebound is important from a consistency standpoint. You are right that with zero rebound, you rely on the chosen shock spring. This ensures that you get the performance you want when changing a shock spring rather than having some effect from the shock rebound. Shock oil will still be important as that will affect the damping rate. Shocks with zero rebound is something that you can replicate from re-build to re-build. This consistency is hard to achieve if you build shocks with some rebound as it is difficult to get the same level of rebound when re-building. Hope this helps.
