Originally Posted by veecee
I think it depends on how you want the car to behave. With the foam in, the shocks will rebound more but they also have resistance in compression. So I guess if you want to maintain a similar feel in compression, you would probably want to go to a heavier oil. I think that's why Tryhard went to a higher wt oil.
Yeah, that makes sense. I'm not really too hot on how the change actually works, i.e. what it actually does to flow inside the shock. But it seems to work (btw, quick comparison, With foam my fastest lap yesterday was a 15.37, without, 14.79...)