02-28-2013, 07:30 PM
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Join Date: Apr 2007
Cobra Make, Engine:
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6 vs 5
Quote:
Originally Posted by ACademic
I asked 3170, not you. I want a real answer. Nice try, rook.  |
It is the design of the 5 pin set up that is the problem not the number. at least the ones I have seen. On the technical side more fasteners are almost always better unless the number of holes weaken the parent structure. Formula Atlantics back in the Cosworth days had 12 flywheel bolts because of vibrational issues on a very small crank end flange. Aircraft design uses many small fasteners instead of a smaller number of large fasteners, heavy duty trucks use 6 bolt hubs, NASCAR is using lots of designs from the early days which are clearly outdated but they want to keep things "inexpensive".
I haven't done the math but I would bet that (6) 1/2 fasteners in shear would have a higher failure load than (5) 5/8" fasteners. On the other side of the issue it is harder to get more fasteners to pick up the load in unison. |
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