Buell XB high performance front isolator

[AZmidget91]

Stiffening the mount would not be good, you would then transfer most of the vibrations through the mount into the frame.

 

[TPEHAK]

Sneak peek

 

[AZmidget91]

Damn dude, you didn't waste any time!

 

[neilrl79]

Look forward to seeing the progress.

 

[cjanderson_90]

oh my!........

 

[KevXB12S]

Beautiful work !!!

 

[Marcus_asparagus]

Hmmmmm nice bit of porn there!

I hope you are able to ship these bad boys to the UK for us poor forgotten about chaps?

Looking good guys.

 

[camouflage]

Stiffening the mount is exactly what Tpehak's project will do. The original mount has the central core bonded to the rubber vibration isolation compound in only a few places. This creates a certain amount of free space to allow the central core to float in lateral and axial directions to minimize vibrations. Tpehak's project will increase the stiffness by increasing the amount of rubber in contact with the central core. This will in turn reduce the amount of movement and therefore increase vibration transfer to the frame.

With any rubber mount on any frame with any engine there comes a point where you have to sacrifice comfort if you want extra performance.

I am looking forward to find out how Tpehak's project performs

 

[TPEHAK]

I hope you are able to ship these bad boys to the UK for us poor forgotten about chaps?

I have no tools to produce the parts, I hope someone will produce and sell the parts and it might be profitable for them if this will work properly. I ordered these parts from China and expect them to be in my hands next Monday.

Seek legal advise prior to selling these please. Get proper liability waivers. In the event of catastrophic failure of this magnificent component what would be the consequences in motion?

hopefully just a rough ride right?

Failure can cause death or serious injury because of the engine can fall down while riding process. If the aluminum Chinese guys used for the prototype has the same property as the original bracket material it should be OK. At least I asked them to use 6061 aluminum alloy. I have no idea if they followed my restrictions.

Stiffening the mount is exactly what Tpehak's project will do. The original mount has the central core bonded to the rubber vibration isolation compound in only a few places. This creates a certain amount of free space to allow the central core to float in lateral and axial directions to minimize vibrations. Tpehak's project will increase the stiffness by increasing the amount of rubber in contact with the central core. This will in turn reduce the amount of movement and therefore increase vibration transfer to the frame.

The idea is that the bracket and the rubber inserts have specific configuration. Initially I am going to use for the front and the back tubes very soft 30-40 shore A hardness rubber for less restricted back and forth vibration. The left and the right side tubes are 50-60 shore A for more restricted left-right vibration and up-down vibration and providing vertical support. The original front isolator works the same way, it has vertical through holes in front and behind the bushing in the rubber, so the bushing has less restriction back-forth, and solid rubber restriction left-right and up-down. I ordered different rubber tubes with different hardness to test different configurations to achieve similar behavior. I am going to attach force gauge to the original isolator bushing and measure deformations to calculate stiffness in different directions and then I am going to adjust the rubber tubes configuration to have similar stiffness in the same directions.

 

[Dellinger]

If you want to be sure the parts are made of 6065 heat treated aluminum you can get it tested. The scrap yard around here tried to screw me on a load of the same aluminum.I told them what it was and The guy pulled out a devise that looked like a volt meter. Said, yup. You can have it tested.
I want one by the way.

 

[Chicknstripn]

Don't worry, the amount the engine falls down when the front isolator fails is minimal. And I'm sure the engine won't fall all the way out. The two tie bars(one at top of engine with grounding strap and the one at the rear next to rear isolator) and the "V" bracket would have to fail at the same time as the front isolator in order for that to happen.
But I'm sure it would make for one hell of a sketchy ride if the isolator did/does fail.

 

[Dellinger]

When are you going to do a Rizoma front pulley cover knock off. Damn, if I knew you were into this stuff before I would have pitched it then...

 

[AZmidget91]

Screw the pulley cover, let's get some rizoma rear pulleys made!

 

[Dellinger]

We can both dream...

 

[TPEHAK]

Finally I've got the new front isolator. It looks like the Chinese guys did really good work.

Old isolator vs new isolator

Since I'm waiting screws and rubber tubes from McMaster Carr I'm thinking about to throw these parts in a local anodizing shop with vibratory tumbler. I'm not sure about the color, may be keep it raw.

 

[Sirius815]

Well would you look at that - that's nice!

 

[epion420]

True buell enthusiast. I love how so many custom ideas come from the members of this forum. I also would love to have/buy one and if needed would gladly give feed back on any of the first models that are sold/issued/released. :eagerness:

 

[jetlee]

So how much did it cost you to outsource to China?

 

[wickedchop]

Is the Chinese prototype a one shot deal and these will be made in America???????

 

[TPEHAK]

About 400$ for all parts and 5 days including delivering http://www.rpprototype.com . I just sent them the CAD files, the part drawings, the restrictions and get the parts in 5 days . I believe this is one of the cheapest and the fastest option. Local machine shops here in Seattle ask a few thousands dollars and a few weeks for the same work, for this price I can buy my own CNC milling machine and start producing the parts. I worked with those guys previously and their price always was lowest even comparing with another Chinese companies.

I do not care where it will be made if it will work properly. But for me it is a one shot deal because I have no plans and no abilities to produce the parts. If the isolator will work successfully with no tweaks I will share the drawings so someone can use it.