JBR Motor Mounts » The Mounts

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2 - The Mounts

The Mounts

The JBR mounts are constructed from a combination of billet aluminum and steel. Jamie chose bushings that are made using 70a, 80a, and 88a durometer polyurethane. The 70a and 80a bushings are a much larger diameter (~2.75” ID and ~3” OD) than the 88a durometer bushings (~2.00” ID and ~2.25” OD). As mentioned in the previous section, these 70a and 80a bushings are some of the largest available on the aftermarket today.

JBR Rear Motor Mount:



The JBR RMM is made from billet T6-6061 aluminum, and is of extremely solid construction. This is a very solid mount that should last a very long time. The entire mount is coated with a signature black wrinkled powder coat, which is done in house at JBR. The available bushing durometers are: 70a, 80a, and 88a. The 88a bushing is available only in a dogbone design with a smaller bushing diameter:



JBR Transmission Motor Mount:



The JBR TMM is made from .188 steel, and is made with 0.250” plates for the top and bottom plates with a solid 2.00” tall steel perch. This piece is also very solidly built, and should have no problems. The entire mount is powder coated black. Available bushing diameters are: 70a, 80a, 88a.

JBR Passenger Motor Mount:



The JBR PMM has a welded steel support and a billet T6-6061 aluminum piece containing the bushing. This mount comes preassembled with the pictured bolt impacted into place. DO NOT ATTEMPT TO DISASSEMBLE! The steel support is powder coated black, and the billet aluminum piece is coated with the signature JBR wrinkled black powder coat. Available bushing durometers are: 70a and 80a.

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[Broxer]

Awesome write up man. I'm really starting to feel the slop since I've went BT. Power is coming on so hard at spool up I think i'm stressing my mounts to the max.

I may try a set of the 70 duro side mounts and see how they treat me. Hopefully slightly less vibes and noise.

[Eric28243]

Excellent. Thank you!

[Tabasco69]

I really aprecaite the videos, Honestly I haven't been around any other cars with after market mounts and when I upgraded all 3 of mine I wasn't sure if the noises I was hearing where normal, I did it in steps like you did here, the transmission kind of sounds like a straightcut gear box..and when I did the passenger side I could hear the valvetrain noises.

[Sum1UDidntC]

I love mine and now it sounds dual charged with a supercharger at those low speeds lol ;p I actually like the vibes cuz it makes me feel like im in a race car. no compromise!

[pastry00]

Highly recommend buying their motor mounts. Makes your car feel brand new giving it a great aggressive feel to it. I took out my old motor mount with only 60k miles and it was shot put JBR motor mount and the cars feels brand new and so responsive! It does cause a lot of vibration but only at first acceleration.

[chrono996]

Originally Posted by pastry00 Highly recommend buying their motor mounts. Makes your car feel brand new giving it a great aggressive feel to it. I took out my old motor mount with only 60k miles and it was shot put JBR motor mount and the cars feels brand new and so responsive! It does cause a lot of vibration but only at first acceleration.

When I installed my JBR 80duro PMM and TMM, my car shook so violently that I had the plastic liners and such falling out in my car. After about 2000 kilometers though, they barely noticable anymore except for low rpms and a bit of gas, and that sweet spot at like 34-3600 rpm where it hits the right vibes from the engine and shakes the car for a couple seconds.

Rides extremely comfortable for me though I've had a couple passengers say on a long drive that it was a little tiresome. Worth it though? Absolutely! The responsiveness feels amazing and the car is so strapped to the ground that any other little "inconvience" isn't worth not getting these.

When i opened up their extremely good packaging the quality and look of the pieces were awesome. Never once looked at them and thought "Weeell... this could be better".

I'm still on the k04 with a few small things done to the car, refer to sig. I bought them because the OEM ones decided to take a shit in my engine bay.

An in all, a great product worth getting.





James

[JBR]

Originally Posted by chrono996 When I installed my JBR 80duro PMM and TMM, my car shook so violently that I had the plastic liners and such falling out in my car. After about 2000 kilometers though, they barely noticable anymore except for low rpms and a bit of gas, and that sweet spot at like 34-3600 rpm where it hits the right vibes from the engine and shakes the car for a couple seconds. Rides extremely comfortable for me though I've had a couple passengers say on a long drive that it was a little tiresome. Worth it though? Absolutely! The responsiveness feels amazing and the car is so strapped to the ground that any other little "inconvience" isn't worth not getting these. When i opened up their extremely good packaging the quality and look of the pieces were awesome. Never once looked at them and thought "Weeell... this could be better". I'm still on the k04 with a few small things done to the car, refer to sig. I bought them because the OEM ones decided to take a shit in my engine bay. An in all, a great product worth getting. James

We're very pleased to hear that you're enjoying them so much.