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 Post subject: TR2 help
PostPosted: Mon Feb 14, 2011 7:26 pm 

Joined: Mon Jan 03, 2011 10:18 pm
Posts: 48
Location: Green Bay, WI
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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 Post subject: Re: TR2 help
PostPosted: Mon Feb 14, 2011 7:43 pm 

Joined: Thu Aug 27, 2009 10:43 pm
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Location: Rochester NY
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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 Post subject: Re: TR2 help
PostPosted: Mon Feb 14, 2011 7:57 pm 

Joined: Mon Jan 03, 2011 10:18 pm
Posts: 48
Location: Green Bay, WI
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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 Post subject: Re: TR2 help
PostPosted: Mon Feb 14, 2011 8:06 pm 

Joined: Thu Aug 27, 2009 10:43 pm
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Location: Rochester NY
trace it out and measure across it with a quarter scale.

It will be somewhere between 9 and 13" probably.


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 Post subject: Re: TR2 help
PostPosted: Mon Feb 14, 2011 8:28 pm 

Joined: Mon Jan 03, 2011 10:18 pm
Posts: 48
Location: Green Bay, WI
Yeah it is around 12"

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 Post subject: Re: TR2 help
PostPosted: Mon Feb 14, 2011 11:17 pm 

Joined: Sat Dec 04, 2010 1:44 am
Posts: 76
Location: Waukesha, Wisconsin
What role do the tilt and track diameter play in ball motion?

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 Post subject: Re: TR2 help
PostPosted: Tue Feb 15, 2011 12:35 am 

Joined: Thu Aug 27, 2009 10:43 pm
Posts: 1701
Location: Rochester NY
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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 Post subject: Re: TR2 help
PostPosted: Tue Feb 15, 2011 12:46 am 

Joined: Thu Aug 27, 2009 10:43 pm
Posts: 1701
Location: Rochester NY
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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