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RJMaloney
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Post subject: TR2 help  Posted: Mon Feb 14, 2011 7:26 pm |
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Joined: Mon Jan 03, 2011 10:18 pm
Posts: 48
Location: Green Bay, WI
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I have a guy who wants a heavy oil and i am trying to talk him into a TR2 but not sure on lay out. he want to stay in the oil and not have to play the dry more of a mid lane read. His PAP in 5 1/8 x 1 3/8 Rev dominate ball speed 14 to 15
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JustinWi
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Post subject: Re: TR2 help Posted: Mon Feb 14, 2011 7:43 pm |
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Joined: Thu Aug 27, 2009 10:43 pm
Posts: 1701
Location: Rochester NY
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Before I can commit to a layout, find out his tilt/track diameter. From that axis I would think he twirls it a bit.
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RJMaloney
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Post subject: Re: TR2 help Posted: Mon Feb 14, 2011 7:57 pm |
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Joined: Mon Jan 03, 2011 10:18 pm
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Location: Green Bay, WI
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JustinWi wrote: Before I can commit to a layout, find out his tilt/track diameter. From that axis I would think he twirls it a bit. I am not sure how to find that out he does cup rotate the ball alot with a mid track line but how does he find his track diameter
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JustinWi
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Post subject: Re: TR2 help Posted: Mon Feb 14, 2011 8:06 pm |
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Joined: Thu Aug 27, 2009 10:43 pm
Posts: 1701
Location: Rochester NY
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trace it out and measure across it with a quarter scale.
It will be somewhere between 9 and 13" probably.
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RJMaloney
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Post subject: Re: TR2 help Posted: Mon Feb 14, 2011 8:28 pm |
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Joined: Mon Jan 03, 2011 10:18 pm
Posts: 48
Location: Green Bay, WI
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Yeah it is around 12"
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In Rotation-
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BOWLERS ADVANTAGE
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JimJimTheGreat
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Post subject: Re: TR2 help Posted: Mon Feb 14, 2011 11:17 pm |
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Joined: Sat Dec 04, 2010 1:44 am
Posts: 76
Location: Waukesha, Wisconsin
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What role do the tilt and track diameter play in ball motion?
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IN MY BAG
C51 OG
C51 LE
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~~~~~~~~~~~~~~~~~~~~~~~~~~~
STATS
PAP: 4 1/2" right, 1" up
Revs: ~350
Speed: 14 mph
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JustinWi
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Post subject: Re: TR2 help Posted: Tue Feb 15, 2011 12:35 am |
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Joined: Thu Aug 27, 2009 10:43 pm
Posts: 1701
Location: Rochester NY
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Tilt and track diameter are synonymous.
Basically, 0* of tilt equates to 13.5" of track diameter. The lower the tilt, the more friction the ball creates per revolution.
For example:
300 RPM and 15* of tilt,
will hook quite a bit less than
300 RPM and 2* of tilt.
whereas
250 RPM and 0* of tilt,
will hook a similar amount to
350 RPM and 12* of tilt.
As you can see, tilt plays a huge part in what layouts to choose.
Speed, Rev Rate, and Tilt are the critical components of proper matchup.
PAP is irrelevant to knowing how a bowler rolls the ball, but is indispensable to identifying layouts and properly laying out balls. After a while you can get a feel for approximating layouts based on how close the track is to the grip, but that is dangerously imprecise.
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JustinWi
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Post subject: Re: TR2 help Posted: Tue Feb 15, 2011 12:46 am |
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Joined: Thu Aug 27, 2009 10:43 pm
Posts: 1701
Location: Rochester NY
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For this one, the ball speed and tilt will create friction so the layout doesn't have to be super strong.
55x45@4.5"
Have him throw it before placing a hole, based on what it does we'll figure out where the hole goes.
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