When it comes to engine mounts, vendors are like your local horny 18 years old, "oh it won't hurt, you won't feel a thing.." when they offer to sell you a polyurethane puck and a solid mounting bolt.

I wanted the Mazda mounts but don't want to pay $600 for mounts that won't last more than 30K. Noltecs are no longer around.

So I found this and ordered a set for $360 from the UK.

Rhs Engine Mounting - Vibra-Technics Compliance Technology

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It uses a rubber isolator and the mounting bolt to the subframe is not the same bolt that mounts the rubber part to the engine mount. In other words there are two mounting bolts with rubber in the middle instead of one straight through bolt in the polyurethane puck.

Anyone tried them? Any feedback?

 

Interesting find. Maybe the UK guys know more about these mounts.

Found another photo of them, notice how on the top part of the engine mount arm there is also a layer of polyurethane and a large washer.

 

Interesting!

They are kind of pricey. I'd take a look at the Full Function Engineering mounts, they use a different mount design and also shed some weight. REALLY neat design.

Dale

 

And FFE mounts are on sale now!

 

Xcessive also offers different design mounts

Online Store - Xcessive Manufacturing

 

Interesting!



Has anyone used the Xcessive design? Any feedback from anyone?

At least it isolates the top mounting bolt from the bottom mounting bolt.

The first question I have is the use of urethane (or polyurethane) as PU are not viable for thermal cycling over long term. And they transmit alot of vibrations as compared to rubber (which is used in OEM and in the Vibra-Technic design).

Second is that there isn't alot of damping material as compared to OEM.

In any case I decided to go with Vibra-Technics due to the good reviews on VW and BMW forums. $390 with shipping from the UK.

The Euro folks all hated the polyurethane puck design. They all complained of teeth rattling at all different speeds.

Here is a gallery of failed puck mounts.



One thing I noted with these single bolt type puck mount is that the engine will try to shear the passenger side bolt. An engine I bought from a forum member last month had the red puck design. I had a hell of a time pulling the mounting bolt off as it was bent (as if it had been hit with a sledge hammer on the side of it).

That was enough for me not to go with the single bolt puck design.

 

the only thing that I'm wondering is...you know how the Noletc's have that security brace, in case the mount brakes, the brace will still keep it somewhat together. I'm not exactly sure what the chances of that really happening are, probably rare...

If I didn't have a set of Noltec's I would def get these...

To the OP, just make sure to use the mount heat shield, as I remember seeing a photo of a melted Noltec passenger side mount due to the lack of a heat shield

 

What grade bolt was it that bent? I have a hard time believing a grade 8 bolt will bend with the torque our cars make. I am at 500RWHP and have not bent a bolt.

 

Overtightening can bend it.. i think my bolts were 6.6 grade and bent

 

my generic puck style mounts got pulverized...

now going with IRP

link: https://www.rx7club.com/3rd-generati...ounts-1039466/

 

Received them today. $387 shipped from the UK to the DemoKratic RepubliK of Kalifornia

Notes: Quality machined aluminum. But the amount of rubber is not alot as compared to the OEM rubber.










Note the bent Grade 8 bolt when used as a direct connection in the poly mount. I have no idea which vendor this is as the motor was a used reman.

 

Let us know how they perform when you get everything running...and how much NVH they produce

 

Note the bolt hole for the engine mount on the upperright hand side of the image below. It's the bolt hole right underneath the hex head of the engine tension bolt. Look closely and you can see hairline cracks emanating from the bolt hole.

This is the second one that I have seen. On the first motor with cracks, I used the Feed upper intake manifold engine brace to reduce the load on this mount and haven't had a problem. Look like I will have to do the same here.

 

Holy crap... what were those other mounts you have sitting on your engine?!

 

Polyurethane mount that came with this used reman with 1500 miles on the motor. I can understand the poly failing due to heat but the bent bolt?

 

My friend had VT mounts on his GT35r FD.
Lovely things - very low amount of NVH but felt like a 'proper' mount. It really did seem to have all the advantages of a stiff mount but with near OEM levels of isolation. Expensive, but worth it IMHO.

 

Does anyone know if the Noltec mounts are still available for purchase? Or any reviews on the xcessive ones?

 

Couple thoughts....
*Seems like the rubber in those vibra-tech should last along time unless it's soaked in oil. On the one I had that failed it just separated from the silly aluminum arm but the rubber itself was still intact.
*Could that cracked iron have been caused by not cleaning the bolt hole of sealant somewhere in it's life.

On a side note, sort of...happily looks we've come along way from guys making mounts outa hockey pucks.

 

Updates on this? I'm about to buy these mounts as well. How do they perform?

 

damn look what happened to my noltec

 

This is not the first time I see a melted Noltec mount. Did you use a heat shield?

 

Looks like no heat shield