Hi ,this is my first post on this site.I have a 920a from Track would like some help on a layout. My specs are,
speed at the foul line 17
5.25 and .25 up
11.25 dia
45 rotation
15 tilt
would like to keep the box finish,i will be bowling on med/heavy.
forgot 325 rev rate.
thanks for the help.
Need help on layout
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- kellytehuna
- Senior Member
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- Joined: January 18th, 2010, 11:11 pm
- THS Average: 195
- Positive Axis Point: 3.75", 1" up
- Speed: 18
- Rev Rate: 480
- Axis Tilt: 17
- Axis Rotation: 40
- Heavy Oil Ball: Morich DestroyR
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- Location: Hazard, KY
Re: Need help on layout
Before someone more experienced than I chimes in, I would like to give this a go...
You appear to be just SLIGHTLY rev dominant, so I would put your sweet spot at about 110°. You have medium tilt and rotation, so ratios of 2:1 - 1.5:1 should work well for you, putting the layout at around 70° x 3 1/4" x 40°.
Ok, let the grilling begin
You appear to be just SLIGHTLY rev dominant, so I would put your sweet spot at about 110°. You have medium tilt and rotation, so ratios of 2:1 - 1.5:1 should work well for you, putting the layout at around 70° x 3 1/4" x 40°.
Ok, let the grilling begin
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- cgeorg
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Re: Need help on layout
Assuming you wanted a more aggressive drilling, to go with the aggressive ball and tighter shot, I was thinking 50x4x40, with a P2 or P3 weight hole depending on how it looks on the lane. Let's see what the Mo says.
- Mo Pinel
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Re: Need help on layout
I'm not too far from your recommendation. With the very slight rev dominance and the 15* of tilt, I like: 55 / 4 /40 with a P3 hole because the cover of the 920A is not that aggressive (medium at most).cgeorg wrote:Assuming you wanted a more aggressive drilling, to go with the aggressive ball and tighter shot, I was thinking 50x4x40, with a P2 or P3 weight hole depending on how it looks on the lane. Let's see what the Mo says.
Rest In Peace (1942-2021)
- kellytehuna
- Senior Member
- Posts: 2891
- Joined: January 18th, 2010, 11:11 pm
- THS Average: 195
- Positive Axis Point: 3.75", 1" up
- Speed: 18
- Rev Rate: 480
- Axis Tilt: 17
- Axis Rotation: 40
- Heavy Oil Ball: Morich DestroyR
- Medium Oil Ball: Morich Perpetual Motion
- Light Oil Ball: Morich Mojave
- Preferred Company: Morich
- Location: Hazard, KY
Re: Need help on layout
I was so close! I opted for a little more length and a shorter pin
Father, Husband, Bowler, Web developer
15lb Morich DestroyR, Mania, Perpetual Motion, Craze, Frenzy, Mojave
15lb Radical Yeti
15lb Brunswick Slingshot, Avalanche Urethane
Highest score: 279
Highest series: 818
15lb Morich DestroyR, Mania, Perpetual Motion, Craze, Frenzy, Mojave
15lb Radical Yeti
15lb Brunswick Slingshot, Avalanche Urethane
Highest score: 279
Highest series: 818