AGrayson84
CEG'er
Hey folks. I know there has been some discussion about this, but I have yet to see anyone post results of trying different hardness levels of polyurethane to cast some roll restrictors.
I put a brand new roll restrictor and front engine/trans mount in my CSVT a few months ago and at least the rear roll restrictor is already shot. It felt nice for a couple of weeks, but even upon initial installation of both parts, the new roll restrictor was sagging once I lowered the engine back down with my hydraulic jack. Pretty disappointing.
I don't want to go with 94A hardness. I feel like one of the lesser hardness levels (80A or even 60A) may do the job with a lot less vibration. A lot of people will say that anything less than 90A will be too soft... but I think some of those people are forgetting we're going from not just rubber to poly, but rubber with holes cast through it to poly. If our factory roll restrictors were solid rubber (no holes), we probably would be just fine.
From what I hear on people using 94A, the vibration is quite obvious. I'm 30 years-old, I don't want that kind of vibration anymore. I do plan on putting aluminum subframe bushings on the car (only because poly is not an option for us there) so unfortunately I'll already be having to deal with some vibration there. I certainly don't want to add to that.
Has anyone experimented with 80A or softer on their roll restrictor and/or front mount?
Thanks,
Andrew
I put a brand new roll restrictor and front engine/trans mount in my CSVT a few months ago and at least the rear roll restrictor is already shot. It felt nice for a couple of weeks, but even upon initial installation of both parts, the new roll restrictor was sagging once I lowered the engine back down with my hydraulic jack. Pretty disappointing.
I don't want to go with 94A hardness. I feel like one of the lesser hardness levels (80A or even 60A) may do the job with a lot less vibration. A lot of people will say that anything less than 90A will be too soft... but I think some of those people are forgetting we're going from not just rubber to poly, but rubber with holes cast through it to poly. If our factory roll restrictors were solid rubber (no holes), we probably would be just fine.
From what I hear on people using 94A, the vibration is quite obvious. I'm 30 years-old, I don't want that kind of vibration anymore. I do plan on putting aluminum subframe bushings on the car (only because poly is not an option for us there) so unfortunately I'll already be having to deal with some vibration there. I certainly don't want to add to that.
Has anyone experimented with 80A or softer on their roll restrictor and/or front mount?
Thanks,
Andrew