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rear roll restrictor
- Thread starter gorman
- Start date
thats normal
Lord Stanley
Hard-core CEG'er
The rubber in your mount it shot... Time to either get a new one or take out the old rubber and fill it with poly...
Making an insert to go around the bolt would do nothing, because when you tighten the bolt it resticts the center metal piece from moving anyways...
Making an insert to go around the bolt would do nothing, because when you tighten the bolt it resticts the center metal piece from moving anyways...
i think i'm going to fill the spaces with a soft rubber compound... to make it firm and not hard. I remember reading on the forum.. that someone increased the diameter of the bolt on the front restrictor and was happy with the improvement. I was hoping that may carry over to the rear ..G.
Dyoel182
Addicted CEG'er
But even if the center section is held in place the bolt still has a lot of slack and when it eventually wiggles free you're left with that mismatch before you transfer power to the ground.
Honestly dont bother trying to fill the spaces. The best way to make it firm will be to burn out the rubber and fill it up with some 65a poly rather than trying to patch that mount up.
i know what you are saying makes sense.. but i only want it to feel like new .. not full race. I have a 2.5L which will be low boost (7psi). There are marks on that RR which suggest it slipped and was stuck in an off center position. I was thinking if you launch hard regularly you may need to check the tightness of that bolt... G.
Dyoel182
Addicted CEG'er
It wont feel like new if you try patching it up. That rubber has been aged and compromised so it will just feel like a slightly stiffer version until the patch fails and you're back to having a soggy mount. 65a is far from full race and should be just a little stiffer than stock. 80a is what most people use and you'll certainly get some vibration from that.
OK; you obviously realize i don't want vibration. Thanks for the heads up ...G.
crewchiefpro
Hard-core CEG'er
Filling with 80 is far better than 94. My son's turbo is vibration free with a 80 fill compared to my 94 fill.
You can try mixing 80 and 65.
You can try mixing 80 and 65.
PHilly
Hard-core CEG'er
94 isn't bad, if it's installed properly.
rollinstylee
Hard-core CEG'er
I don't suggest using a larger diameter bolt or filling the space inside the collar with anything. The collar is designed larger for tolerance and adjustability to prevent preloading the other mounts. The torque spec of the bolt is set to create a sufficient clamp load to prevent it from slipping. You'll risk creating more NV problems and even possibly shearing the bolt if it fits snugly in the mount and is preloaded during installation. This is coming from a mount engineer if that lends any additional persuasion.
OK, point taken.. the space is for adjustment and as long as it is tightened sufficiently, it should not slip..G.
Dyoel182
Addicted CEG'er
It shouldnt slip but it does as the mount fails.
rollinstylee
Hard-core CEG'er
If by "fails" you mean the rubber deteriorates, that makes it even less prone to slip since the rate of the mount decreases and puts less load into the collar...
If you're talking about the other mounts deteriorating and turning the roll restrictor into a higher 1G load bearing mount, that's a different story.
If you're talking about the other mounts deteriorating and turning the roll restrictor into a higher 1G load bearing mount, that's a different story.