What kind of power can a stock crank take?
#22
03-16-2011, 09:44 AM
Work Truk is one of the main people here who I think highley of.
This isn't a kids blogging place. Be positive always.
And speaking of the crank,-- as Hillside said.
the crank is a press interference fit. There is potential for movement always.
The thing is engineered to have 0.007 difference between the crank pin and the wheel. Probably freeze one and heat the other and slide together.
But what happenes if the pin is on the small side of specification and the wheels are on the big side? Gotta happen sometime. Probably never notice when all stock.
But
This is why if going big horsepower one has to rule out this posibility.
This isn't a kids blogging place. Be positive always.
And speaking of the crank,-- as Hillside said.
the crank is a press interference fit. There is potential for movement always.
The thing is engineered to have 0.007 difference between the crank pin and the wheel. Probably freeze one and heat the other and slide together.
But what happenes if the pin is on the small side of specification and the wheels are on the big side? Gotta happen sometime. Probably never notice when all stock.
But
This is why if going big horsepower one has to rule out this posibility.
Last edited by Old Gunny; 03-16-2011 at 09:51 AM.
#23
03-16-2011, 10:00 AM
You hijacked a thread; that's against forum rules. All Truk did was call you on it; no reason to start any chit! Like Truk said, go start a new thread.
#24
03-16-2011, 11:52 AM
#25
03-16-2011, 12:14 PM
#26
03-16-2011, 12:41 PM
#27
03-16-2011, 07:38 PM
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#29
03-18-2011, 11:50 PM
I went with the SE lefty bearing.
I think the timken bearing will side load the cases and push the crank to one side due to the taper. The cases were made for up and down force not side to side force. Just a thought.
Now if someone were to come up with a dual bearing that cancelled the side trust then that would be a hell of a setup. That shop would take money out of my pocket for a bearing instal. Other then that I think the timken is a waste. Not to mension the accual bearing length of the roller is shorter on the timken then the SE ,so the roller would have to carry more weight on the roller surface area to race. meaning loss of bearing life.
I think the timken bearing will side load the cases and push the crank to one side due to the taper. The cases were made for up and down force not side to side force. Just a thought.
Now if someone were to come up with a dual bearing that cancelled the side trust then that would be a hell of a setup. That shop would take money out of my pocket for a bearing instal. Other then that I think the timken is a waste. Not to mension the accual bearing length of the roller is shorter on the timken then the SE ,so the roller would have to carry more weight on the roller surface area to race. meaning loss of bearing life.
