Chris(MA)

Will do!

rogazilla

So this got me thinking today, can I find some urethane tubes and fit them into the hole of the trans mount? I can stick smaller tube into larger tube until I get the stiffness I want?

dporto

There are many different ways to stiffen the trans mount. People have used "Window-weld", Silicone, etc... The problem being that you really don't know what you're going to get until you try it. Seeing as the mount itself costs around $80 ($100 after shipping) it could get expensive pretty quickly of you're unhappy with your experiment. Your idea of using tubing (or even solid rubber strips) and stuffing the cavities with them might be worth a shot. Good Luck

rogazilla

btw after looking up some more, I found that Powerflex redesigned theirs back in 2017 as this tread indicated:

http://www.911uk.com/viewtopic.php?t...er=asc&start=0

TL;DR version:
Basically they found the sidewall too thick and they thinned it out.

dan_189

Someone else posted that link as well - looks like powerflex stand behind their product and R&D.

I'm going to source a powerflex set locally.

rogazilla

I installed the powerflex with a new transmission mount yesterday and took it out for a drive. No added vibration but the exhaust note seemingly slightly different. The car drives much much better, a lot of weight sway and clunking are gone! My transmission mount has collapsed so not sure how much is contributed to the new mount and how much is contributed to the insert!

For shifting the hard to get into first is gone but other than that, all other gears feels the same.

dan_189

Nice one! This actually dropped off my radar - did you do yellow or black?

rogazilla

I did the yellow one. I posted picture in the other thread of the condition of my old transmission mount. I didn't realize it has gotten this bad and the car really drive massively different now.

dan_189

I've been having the same 'whilst I'm there thought' did you replace the mount with the 997 part or 996?

I vaguely remember reading the new 997 part could be installed?

rogazilla

I don't know if the new 997 part fits or not. Someone else may be able to help confirm that.

The part number I got is 996-375-055-05 on the box. I bought it from sunset when they had the 20% off code shared by Ahsai.

dan_189

Thanks!

Hopefully someone can confirm - not overly confident about the 997 part fittment

WaddyP

I am going to be removing a set of the FF Yellow this week and will be selling them. Too much noise for my daily driver. I do like the performance upgrade but not the noise.

HenryPcar

I did the same on my orange FF. Just can't stand the NVH.

WaddyP

even the soft ones were too noisy?

HenryPcar

Yes, to me anyways.