Which Engine Mounts to Buy?
#76
But overall, I think I'm done with HT parts. I've used their strut mounts on a 986 (which was a disaster) as well as on a newer Golf R (one of those was also defective). I won't be buying HT parts any more.
#77
What do you think of "RS Engine Mount Upgrade" for 997.2? They are also interesting..
https://rennpart.com/product/rs-engine-mount-upgrade/
https://rennpart.com/product/rs-engine-mount-upgrade/
I used the larger washers from Porsche.
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buddalun (10-09-2023)
#78
#79
#81
#82
#83
#85
Me. I went from stock mounts, with about 60k miles on them, to Rennline mounts with yellow inserts for my 2012 Carrera GTS. I didn't like the additional cabin resonance that occurred at ~3100 RPM, which coincides with a "fast cruise speed". Third party research has shown that stiffer engine mount can cause interference with knock sensor operation and timing advance to be pulled, though this effect is only documented in 997.1 cars, AFAIK. I spoke to TPC racing about it and they suggested the non-dynamic 997.2 GT3 mounts (pn 980-375-351-03) because they're the stiffest mounts Porsche engineered for the car. The non-dynamic mounts are fluid filled, BTW. I replaced the Rennline mounts with non-dynamic GT3 mounts and the resonances went away and the car feels just as responsive.
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sabotaged (09-22-2023)
#86
Me. I went from stock mounts, with about 60k miles on them, to Rennline mounts with yellow inserts for my 2012 Carrera GTS. I didn't like the additional cabin resonance that occurred at ~3100 RPM, which coincides with a "fast cruise speed". Third party research has shown that stiffer engine mount can cause interference with knock sensor operation and timing advance to be pulled, though this effect is only documented in 997.1 cars, AFAIK. I spoke to TPC racing about it and they suggested the non-dynamic 997.2 GT3 mounts (pn 980-375-351-03) because they're the stiffest mounts Porsche engineered for the car. The non-dynamic mounts are fluid filled, BTW. I replaced the Rennline mounts with non-dynamic GT3 mounts and the resonances went away and the car feels just as responsive.
I didn't realize the GT3 mounts were fluid-filled as well, though. Regardless, seems like a great solution.
Last edited by jalvani; 09-22-2023 at 01:26 PM.
#87
Me. I went from stock mounts, with about 60k miles on them, to Rennline mounts with yellow inserts for my 2012 Carrera GTS. I didn't like the additional cabin resonance that occurred at ~3100 RPM, which coincides with a "fast cruise speed". Third party research has shown that stiffer engine mount can cause interference with knock sensor operation and timing advance to be pulled, though this effect is only documented in 997.1 cars, AFAIK. I spoke to TPC racing about it and they suggested the non-dynamic 997.2 GT3 mounts (pn 980-375-351-03) because they're the stiffest mounts Porsche engineered for the car. The non-dynamic mounts are fluid filled, BTW. I replaced the Rennline mounts with non-dynamic GT3 mounts and the resonances went away and the car feels just as responsive.
#88
Uro 964RS / RS mounts are decent bargain - appear to be holding up well.
Complete kit can be under $150USD / $200CAD shipped
https://www.rockauto.com/en/moreinfo...=5552&jsn=1335
Complete kit can be under $150USD / $200CAD shipped
https://www.rockauto.com/en/moreinfo...=5552&jsn=1335
I have just ordered a new set these off the link you provided, cheap @$117usd for the pair. thanks @997ajk
I already have RS mounts on my .2 C2S, but they have started to sack out, so newbys are on the way.
Thanks!
#89
BTW, has anyone opened a stock engine mount to see what's inside?
I might cut the lid off one for a look.
Just wondering if new parts like a custom cast poly bush could be retrofitted.
One would probably have to burn out the existing rubber first and clean it out before designing a new poly groupset.
I might cut the lid off one for a look.
Just wondering if new parts like a custom cast poly bush could be retrofitted.
One would probably have to burn out the existing rubber first and clean it out before designing a new poly groupset.
#90
People have reported that the URO mounts don’t last long. How long have you had them on your C2S?
I have just ordered a new set these off the link you provided, cheap @$117usd for the pair. thanks @997ajk
I already have RS mounts on my .2 C2S, but they have started to sack out, so newbys are on the way.
Thanks!
I already have RS mounts on my .2 C2S, but they have started to sack out, so newbys are on the way.
Thanks!