by Terry Kennedy » Tue Jul 17, 2012 6:09 am
[quote="ub2slow"]
After careful consultation and calculations with the builder, he thought the stock transmission would hold up fine considering the low weight of the Atom and the stress release also being loss of traction. He said there are many 600hp Cobalts that weigh more than twice as much that the transmissions are holding up on. With the extreme light weight of the Atom and primarily being used on the street with gradual power application on a roll rather than say a violent drag strip it should be fine.[/quote]
Sorry for the belated reply - I've been off doing other things. Anyway...
There are two points of weakness you should discuss with your builder. The first is the driveshafts. Toward the end of Brammo Atom production, the vendor for the driveshafts came out with an upgraded version. The company is called
The Driveshaft Shop and they still produce parts for Brammo Atoms. You might want to talk to them to see if they think uprated parts would be useful. They should also be able to tell you if you have original or improved ones on your car now.
The second thing is the rear upright / hub / bearing assembly. Each of those three components have failed on some cars. There were various improvements made along the way, but the basic design isn't really up to the task when used on a car with either more power, more grip, or both. Both
Palatov Motorsport and
Unique Fabricating designed replacement uprights from scratch. Both have larger bearings, redesigned hubs, and billet aluminum uprights. As far as I know, neither of them is "in stock" at either company, but they both still have the CNC files and the tooling to produce them.
[quote="ub2slow"]
After careful consultation and calculations with the builder, he thought the stock transmission would hold up fine considering the low weight of the Atom and the stress release also being loss of traction. He said there are many 600hp Cobalts that weigh more than twice as much that the transmissions are holding up on. With the extreme light weight of the Atom and primarily being used on the street with gradual power application on a roll rather than say a violent drag strip it should be fine.[/quote]
Sorry for the belated reply - I've been off doing other things. Anyway...
There are two points of weakness you should discuss with your builder. The first is the driveshafts. Toward the end of Brammo Atom production, the vendor for the driveshafts came out with an upgraded version. The company is called [url=http://www.driveshaftshop.com/kit-car-misc-parts/ariel-atom]The Driveshaft Shop[/url] and they still produce parts for Brammo Atoms. You might want to talk to them to see if they think uprated parts would be useful. They should also be able to tell you if you have original or improved ones on your car now.
The second thing is the rear upright / hub / bearing assembly. Each of those three components have failed on some cars. There were various improvements made along the way, but the basic design isn't really up to the task when used on a car with either more power, more grip, or both. Both [url=http://www.palatov.com/]Palatov Motorsport[/url] and [url=http://www.unique-fabricating.com/pilot.asp]Unique Fabricating[/url] designed replacement uprights from scratch. Both have larger bearings, redesigned hubs, and billet aluminum uprights. As far as I know, neither of them is "in stock" at either company, but they both still have the CNC files and the tooling to produce them.