Berg trans mounts, high hp car (+240hp). Solid or rubber/urethane mounts?

[-Alex-]

I have been recommended Solid mounts with my berg 5-speed and 2789cc engine, even if the car will be mostly street driven germanlooker and some occasional track and drag days.

I am not very much interested to have solid mounts, i would prefer hard rubber or urethane mounts.

Framehorns and shock towers will be supported very well.  5-bar käfer cup bar system, rollcage possibly tied to framehorns/torsiontubes etc.  Just like remmele does.

Does anybody sell this kind of mounts, but instead of rubber, polyurethane?

[Ninho/DKM]

Alex, i have Berg style mid mount on my Surfin'Bird bug, i usually street it as daily drive car using same grimmets you had pictured in your thread. Times i had gone racing i had switched to solid mounts, aluminium spacers, in place of grommets thats working so fine with yellow urethane Rhino main mounts. I belive you can look for those grommets by heavy vehicles for transportation parts sellers, i think also you should have to get them in urethane by a machinery shop.  Anyway i run a 1776cc with standard trans+zf lsd and grommets spacers are ok fir street use couse they privides enought strength to drivetrain not killing diveabke comfort.

[Jon]

My gearbox is supported on four of these rubber mounts, this gives a quiet car while on the street. When on the track I jack the gearbox up 1 mm and sticks cut-down caster shims on to the side of the rubber mounts. I secure them with a strip and then release the jack. Maybe you could think this way and make a polyurethane sleeve for your rubber mounts?

[-Alex-]

Ok, i am thinking to step urethane "donuts", possibly from energysuspension or just watercut one.

[Bruce]

My gearbox is supported on four of these rubber mounts,

Can you post a photo?

[Jon]

My gearbox is supported on four of these rubber mounts,

Can you post a photo?

This is from when I built it back in 2003. It's not quite done in the pictures, but you can see what it's about. Not a busted gearbox since I built it  

This is the cradle part:




The rear support:


This is how it fits together:


In these pictures the front is fixed by the stock nose cone rubber mount, I have never used had that in the actual car. I use a little uniball link between the cradle and chassis to ensure a nice gear shift (box not moving lengthwise)