997GT3 Engine Mounts

[NIgt3]

I was thinking of replacing the engine mounts on my 997gt3 Mk1 to a Wevo semi solid mount or something similar, Has anyone on the forun done this or Does anybody know if this is a worth while upgrade, any feed back would be appreciated! Thanks

[Pope]

The mounts as standard aren't particularly inferior but the latest gen cars have the switchable mounts that stiffen for track style use - the factory see a benefit hence the option. The cup cars ran solid mounts when I looked after a few. No experience of solid mounts for road use but the obvious increase in NVH may become tiresome?

[fioran0]

wevos are great, i know a ton of folk using them. no increase in noise into the cabin whatsoever.

[NIgt3]

thanks for replies!! I will be using the car at the nurburgring quite alot do you think this modification makes a noticeable difference over the standard engine mounts??

[Pope]

Any reduction in relative movement between the engine and chassis will make the vehicle handle more predictably; the engine / transmission mass become one with the chassis rather than introducing additional forces. Solid transmission mounts will reduce those reactions further still. The trade off is additional stress through the chassis at the mounting points so additional checks for fatigue would be necessary longterm.

[fioran0]

Ref above. It's the engine carrier and the trans bracket that take the stress on the cups due to the solid mounts.
They need checked frequently and rewelded often as a result.
With the semi solids this doesn't apply. They are essentially polybushed engine mounts so there's enough there to prevent things cracking but also enough to improve things over the stock mounts.

Edited by fioran0 on Monday 7th November 22:22