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Author Topic: Mass Bias on Ebonite Tornado Series  (Read 1556 times)

DP3

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Mass Bias on Ebonite Tornado Series
« on: March 01, 2005, 02:15:41 AM »
By looking at this ball and spinning it on the determinator am I right that this core spins on the Y-axis?  If so would that have anything to do with the fact that the actual offset of the core is above the pin(like the bombs away) and on the backside of the ball rather than being on a line 6 3/4 from the pin through the C.G.?  Where is the actual offset of the core in this ball?  Looking from the pictures of it, and the ball characteristics it seems as if it is in the "Anti-Mass Bias(Visionary's term)" position.
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charlest

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Re: Mass Bias on Ebonite Tornado Series
« Reply #1 on: March 01, 2005, 03:12:07 PM »
I think the Power Grooves also have a notable, if not significant mass bias. part of the reason their backend is so ... notable.
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DP3

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Re: Mass Bias on Ebonite Tornado Series
« Reply #2 on: March 01, 2005, 09:08:34 PM »
Yes CharlesT.  I finally got to throw my Powergroove side by side with my Seafoam tornado tonight on the ABC tournament shot.  Here are the pics of the drillings

http://www.we-todd-did-racing.com/wetoddimage.wtdr/wODAyMTQ0NnM0MTNkZmQzMXk1NDE%3D.jpg

http://www.we-todd-did-racing.com/wetoddimage.wtdr/wODAyMTQ2NnM0MTNkZmQzMXk1NDE%3D.jpg

Both of these balls are very dramatic at the breakpoint.  The Seafoam Tornado is very unique in the fact that being 800 grit it floats up the lane and gives alot of lope in the midlanes.  You can see the ball really "charging up" to make it's move but it doesn't until about 45 feet and for a dull ball with this weaker drilling I can generate a ton of angle with it but it was still smooth enough to blend out the ABC tournament shot.  For anyone going out there whose revs overpowers their speed I'd definately suggest having a drilling like this with a similar core/cover combo.  It worked really well on the fresh shot, with the powergroove shining on the condition as it broke down.
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charlest

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Re: Mass Bias on Ebonite Tornado Series
« Reply #3 on: March 02, 2005, 12:54:27 AM »
Ooops, sorry, DP3; I just made the same comment about the PG's mass bias on your PG thread. (I think you're right and both series have a marked mass bias.)

I should dig out my Seafoam. I had it drilled label, but found the 800 grit finish a bit much. I had to sand it to 1500 grit and then put a high gloss polish on it. Haven't used it in over a year.

Your drilling is certainly MILD! but with the 800 grit finish, it should match up pretty well, Besides, you seem happy with it; so it must be reacting well.
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charlest

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Re: Mass Bias on Ebonite Tornado Series
« Reply #4 on: March 02, 2005, 12:58:53 AM »
quote:
... For anyone going out there whose revs overpowers their speed I'd definately suggest having a drilling like this with a similar core/cover combo.  
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FWIW I agree with you. I have resisted it for years, but I started drilling a ball here and there with pins above the center of the bridge and CG/MB either directly below or kicked out 1 - 1.5". Most have reacted quite well as I do fall into your (and Greg7's) category of too many revs for ball speed, although I'm still working on ball speed increases. Actually the only ball that wasn't still controllable was a Visionary Blue Gryphon (Talk about skid/flip!). In fact, it made the Fuze Igniter more controllable.
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