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Author Topic: Core Performance  (Read 742 times)

Strapper_Squared

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Core Performance
« on: November 08, 2004, 12:33:54 PM »
Would if be safe to argue that two cores of totally different shapes, but with very similar numbers (rg, diff, mb strength etc), would perform very similar if the same coverstock was used?  If this was the case, it would shoot a hole in the idea that certain cores roll better for certain styles of bowlers...  

Just a thought...  any ideas?

S^2
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I think it's the duty of the comedian to find out where the line is drawn and cross it deliberately.

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Strapper_Squared

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Re: Core Performance
« Reply #1 on: November 09, 2004, 02:59:14 PM »
AHHHA!  That's the catch!  At the time I was just quickly thinking about it and it seemed that regardless of the shape, size or whatever, if the numbers were identical, it seems reasonable that the same reaction would occur (how does hte cover know...  overall there is the same "net" forces).  But when you place holes in the ball, this is where the number begin to change...  good insight.

Thanks,

S^2


quote:
Keep something in mind. This can be a trick question.

If you have 2 cores with the same numbers and dissimilar core shapes and the same coverstock, they WILL roll exactly the same. They have to.

Now, ADD holes and the cores change which is why cores with the same numbers yet different shape roll differently. Without holes it is physics. Add holes and its changes everything. Where the holes take mass out is what changes RG's as well as Differential. Take 2 balls that are the same, you drill one with the pin up and one with the pin down, they roll different. Why? Where the mass was removed.
Make sense? Hopefully.

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=-=-=-=-=-=-=-=-=-=-=-=-=-=

I think it's the duty of the comedian to find out where the line is drawn and cross it deliberately.

George Carlin
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Constantine

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Re: Core Performance
« Reply #2 on: November 10, 2004, 11:21:51 AM »
Not to say that the holes can't make a difference, but that's not the catch.

Here's the catch...the core in a flaring bowling ball doesn't stay in one place.

Two different shaped cores may have the same RG & differential after drilling.  But as the ball flares and the core moves the transitional RG and differential are going to be different.

Ball reaction isn't totally about where the core starts.  You have to think about where the core ends up and how it got there.
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Good luck & good bowling
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