6 replies to this topic

[bdean]

As above there seems to be so many combinations:

 

Original rubber mounts

Polybush mounts

Upper Alloy / Lower Poly combination

All Alloy

 

Any recommendations on the best setup.

 

Many Thanks,

 

Ben

[KTS]

I believe the advice is not to mix solid and flexible mounts - either all solid, or all flexible

 

polybushes as i understand it are not suited to subframe mounts as they tend to deform rather than flex like rubber mounts would

[nicklouse]

solid mount the rear mounts and the towers if you don't mind the extra noise. you may also consider reinforcing the area the rear mounts bolt onto as the bulkhead/floor has ben known to crack.

 

front mounts. you can use what ever you want (people will say use the same as the other mounts) as the front can be moved quite easily compared to the subframe and the way I see it is more of a case of attaching the front to the subframe rather than the subframe to the car.

 

Popcorn opened.

[Retroman]

Like most things Mini its down to personal choice

 

But In my book like Nicks, go for solid mounts and add some bigger plates re-inforce the floor if you can

 

If you are are bothered about the noise you bought the wrong car

 

They were all built with a solid mounted front subframe until 1976 anyway, and they never handle as well with rubber mounts.

 

PM for a set

[pete l]

How much noisier and harsher is a solid mount subframe compared to a rubber mounted one ? Is the difference amazing or just slightly rougher ?

 

and would extra sound proofing hide the solid mount version and make it comparable to a rubber mount one ?

Edited by pete l, 21 January 2019 - 01:01 PM.

[Cooperman]

The rubber mounts were added when the target market changed from a broad spectrum of driver to, basically, elderly people.

 

The original type solid way of mounting the sub-frame is undoubtedly the best. In fact, solid mounting enables the applied suspension/braking loads to be transferred into the monocoque body shell. This is what was designed originally.

 

The poly mounts are about the worst thing you can fit. 

 

There is little additional NHV with solid mounting, but the dynamic response to steering is noticeable, especially if the rubber mounts are a bit worn. It goes without saying that if the sub-frame is bolted solidly into the body-shell, there is no sub-frame 'float' which you get with those horrible rubber mounts.

 

It's a 'no brainer' as far as most of us are concerned.

[DeadSquare]

If you have bought a classic Mini, you can't expect sixty year-on refinement, so go for the full classic Mini experience and bolt the subframe tight to the body.