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Haven't seen these mentioned here: A new engine mount option, somewhat similar to the thinking of the LR Supermount or 9products engine mount. Not affiliated at all, and I've been a happy user of LR Supermounts for near 20yrs on a track car. But I love having options, and I ordered a set of these from Rennline last week immediately when I found out about them. These are clearly the most expensive option, but also clearly the nicest machining and show some real thought to a captured yet isolated design. I am not affiliated at all, they will go on a car being restored for the street.
Maybe there is some magic going on inside that we can't see here but it seems that isolation will be defeated by a single bolt traversing the top and bottom mounting plates.
Maybe there is some magic going on inside that we can't see here but it seems that isolation will be defeated by a single bolt traversing the top and bottom mounting plates.
I think it's only threaded on one end, so presumably it can squish still. They look pretty nice, Rennline generally makes good stuff.
Last edited by uniquenamehere; 02-23-2022 at 10:06 AM.
I think it's only threaded on one end, so presumably it can squish still. They look pretty nice, Rennline generally makes good stuff.
Yeah, aren't all bolts are only threaded on one end.
I hope there is something I'm missing here but if the one bolt touches the top plate (which is bolted to the engine) and also touches the bottom plate (which is bolted to the crossmember) there will be vibration transmission. They do look nice... and racy... maybe I'll get a set for my desk but for motor mounts, I'm sticking with Porsche engineered, hydraulically damped and long term proven pieces.
Some of the marketing propaganda seems generalized and not applicable to the 944 also. For example, the promise that shifting will be improved. Anyone that knows 944's understands that the shift components are mounted directly to the driveline and shifting does not suffer from differential movement between chassis and driveline.
No disagreement until this statement. The cost and lifespan on OEM motor mounts is why I switched to LR Supermounts a long time ago, and why I am trying these. OE works fine on OE cars. Many of us are now making much more grip and much more power than OE was designed for.
Rennline has more pics on their site. It's a flawed design, the bolt goes all the way through. Good luck keeping the bolt tight, as soon as you hit a bump or apply power the rubber will squish down and create slack in the bolt.
Maybe there is some magic going on inside that we can't see here but it seems that isolation will be defeated by a single bolt traversing the top and bottom mounting plates.
It has a compression stop bushing inside, and the lowers block is threaded so you can pull it tight to the crossmember.
The inner sleeve is short of the stack so there’s room for the urathane to compress and the lower pad is threaded so it’s pulled tight to the member. The upper half can be adjusted. I will see in the next few weeks
02-23-2022, 06:20 AM
New engine mount option - Rennline
