Author Topic: REACTION HOLE IN A 3 PIECE CORE PLASTIC (Read 6804 times)

J_w73 · « **on:** February 16, 2010, 05:26:54 AM »

Can you put a weight hole to create a more dyanamic reaction in a 3 piece plastic ball ? Where would you put it?
I want a plastic spare ball with a dynamic core in it but have a NIB 3 piece pancake plastic ball. Figured I would use this if I could. Can a weighthole in the right place create some RG differential and asymmetry to make the ball perform a little better?

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18 mph,350 rpm,PAP 5 1/2 x 3/8up, 15 deg axis tilt, varied rotational axis deg.. usually 45+
HighGame 300 x 4, High Series 808
Book Average 205,PBA Xperience 185

the pooh · « **Reply #1 on:** February 16, 2010, 02:55:52 PM »

Absolutely! There are a couple of drillings I used to use back in the 70's to strengthen the reaction of the White Dots/Yellow Dots.
One is leverage weight. Put the cg 3 3/8" from the pap on the midline. Drill an x-hole 9" from grip center on midline and bring side weight back to 1/2 positive. This drilling will provide medium length with strong backend.
The other is called block weight. Put the cg 2" from pap on grip midline. Place the x-hole on the pap and bring the side weight back to even or negative. This drilling will provide an earlier breakpoint and smoother backend.
Both of these will make the ball flare a little more and quite a bit more dynamic. I shot quite a few honor scores with these layouts back when a White dot or Yellow Dot was THE performance ball! Still a good option today for dry lanes or outside shots.

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the pooh

J_w73 · « **Reply #2 on:** February 16, 2010, 03:53:08 PM »

Thanks for the info..

so on the leverage weight I understand that putting the cg at 3 3/8 will create the most imbalance.. and is the hole 9" from the center grip like putting a hole in the side of the core to increase the diffrential? Creating a sort of pseudo 3 3/8 pin placement and a pseudo core?

I''ve also heard this layout as putting the cg 3 3/8 from the PAP and then weighthole 3 3/8 past the PAP.
Any danger of flaring over that hole ?? Or will the layout still not create that much flare ??
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18 mph,350 rpm,PAP 5 1/2 x 3/8up, 15 deg axis tilt, varied rotational axis deg.. usually 45+
HighGame 300 x 4, High Series 808
Book Average 205,PBA Xperience 185

Edited on 2/16/2010 5:18 PM

the pooh · « **Reply #3 on:** February 16, 2010, 07:28:00 PM »

You won't get the kind of flare the 2 piece cores develop. There should be no danger of flaring over either the 6 3/4" or 9" holes. I would go with the nine inch hole, personally.

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the pooh

themagician · « **Reply #4 on:** February 16, 2010, 07:35:12 PM »

I have a blue dot with a CG shift of 2" and a weight hole 8" over, it flares a bit and actually has a bit of a roll, not sure if it helps much but mentally I have more confidence in it when using it as a strike ball versus a regular plastic ball.
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BowlingChat.net

J_w73 · « **Reply #5 on:** February 17, 2010, 01:02:29 AM »

quote:
You won't get the kind of flare the 2 piece cores develop. There should be no danger of flaring over either the 6 3/4" or 9" holes. I would go with the nine inch hole, personally.
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the pooh

not to be a pest but won't the hole be in a different position for different PAP distances?? So where is the 9" hole from center grip supposed to end up in relation to the center of gravity or PAP...
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18 mph,350 rpm,PAP 5 1/2 x 3/8up, 15 deg axis tilt, varied rotational axis deg.. usually 45+
HighGame 300 x 4, High Series 808
Book Average 205,PBA Xperience 185

the pooh · « **Reply #6 on:** February 17, 2010, 04:11:25 AM »

I don't know how they arrived at the number. It does allow for some top weight as well as getting the side weight legal. I think the location is designed to get the static weights more in line. Remember, without a core, statics did matter and were all we had to work with back in the day of the pancake weight block!Definitely provides a unique reaction, and you can strike a lot with it on the right condition. The instructions for the layout are on an Ebonite drill sheet( for 3 piece balls), so you might email their tech dept your question. I am sure they could give the reason for the 9" distance.
The block weight drilling sounds more in line with todays thinking( with the x-hole being on the pap) but you do usually end up with bottom weight, which I believe contributes to the earlier roll and smoother backend.
Anyways, I have used both,as I said earlier, and had great success. In fairness, most of my honor scores were shot with the block weight or a variation of it. Sometimes I would shift the cg further out and put a huge weight hole on the pap to get it legal. I heard that Wayne Webb was instrumental in developing these layouts and using them successfully.

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the pooh

J_w73 · « **Reply #7 on:** February 17, 2010, 08:54:56 AM »

sweet , I might give it a try..
I'm in a dilema though.. I have an ICE storm cause it is one of the hardest balls and will go straight. That is what I want for spares.. But do you think the hardness and straightness of this ball will over ride the dynamic drilling??

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18 mph,350 rpm,PAP 5 1/2 x 3/8up, 15 deg axis tilt, varied rotational axis deg.. usually 45+
HighGame 300 x 4, High Series 808
Book Average 205,PBA Xperience 185

the pooh · « **Reply #8 on:** February 18, 2010, 01:16:30 AM »

It will still give it some flare and make it more dynamic than it is. You will still be able to shoot spares with it, it won't hook THAT much more!

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the pooh

J_w73 · « **Reply #9 on:** February 18, 2010, 01:18:59 AM »

quote:
It will still give it some flare and make it more dynamic than it is. You will still be able to shoot spares with it, it won't hook THAT much more!
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the pooh

I guess if it is too straight I could always dull it up a bit..

thanks for the input..
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18 mph,350 rpm,PAP 5 1/2 x 3/8up, 15 deg axis tilt, varied rotational axis deg.. usually 45+
HighGame 300 x 4, High Series 808
Book Average 205,PBA Xperience 185

JohnP · « **Reply #10 on:** February 18, 2010, 09:24:21 AM »

You really want a spare ball to go as straight as possible. Instead of trying to amp up your plastic ball why don't you get a plastic ball with a dynamic core, Lane 1 makes the only one I'm aware of, the XXXL Starburst. Or maybe one of the new urethane balls with dynamic cores. -- JohnP

J_w73 · « **Reply #11 on:** February 18, 2010, 10:10:59 AM »

quote:
You really want a spare ball to go as straight as possible. Instead of trying to amp up your plastic ball why don't you get a plastic ball with a dynamic core, Lane 1 makes the only one I'm aware of, the XXXL Starburst. Or maybe one of the new urethane balls with dynamic cores. -- JohnP

yes.. that is what I am trying to do with the drilling.. make it react like a XXXL starburst..

The reason is I already have a NIB plastic and don't want to spend 100+ dollars on a new plastic ball.
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18 mph,350 rpm,PAP 5 1/2 x 3/8up, 15 deg axis tilt, varied rotational axis deg.. usually 45+
HighGame 300 x 4, High Series 808
Book Average 205,PBA Xperience 185

Corey C · « **Reply #12 on:** February 19, 2010, 09:58:20 AM »

I just re drilled an old pearl Rhino with a pancake block. My driller Rich Huzina also recommended the 9" hole. We started with 3/4" pos side, measured 9" from grip center through the CG and used a fairly large hole 3" deep. It rolls great and does flare a little. I wanted to use this on our house shot because it is so dry outside 8 board.
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Corey Clayton
Brunswick Amateur Staff
Turbo Grips Staff
Team Canada 2007, 2008, & 2009
All my equipment is professionally drilled by Rich Huzina at Strikes Pro Shop, Let's Bowl Calgary, AB
The opinions expressed are solely those of the writer and not of Brunswick Corporation

Author Topic: REACTION HOLE IN A 3 PIECE CORE PLASTIC (Read 6804 times)

J_w73

REACTION HOLE IN A 3 PIECE CORE PLASTIC

the pooh

Re: REACTION HOLE IN A 3 PIECE CORE PLASTIC

J_w73

Re: REACTION HOLE IN A 3 PIECE CORE PLASTIC

the pooh

Re: REACTION HOLE IN A 3 PIECE CORE PLASTIC

themagician

Re: REACTION HOLE IN A 3 PIECE CORE PLASTIC

J_w73

Re: REACTION HOLE IN A 3 PIECE CORE PLASTIC

the pooh

Re: REACTION HOLE IN A 3 PIECE CORE PLASTIC

J_w73

Re: REACTION HOLE IN A 3 PIECE CORE PLASTIC

the pooh

Re: REACTION HOLE IN A 3 PIECE CORE PLASTIC

J_w73

Re: REACTION HOLE IN A 3 PIECE CORE PLASTIC

JohnP

Re: REACTION HOLE IN A 3 PIECE CORE PLASTIC

J_w73

Re: REACTION HOLE IN A 3 PIECE CORE PLASTIC

Corey C

Re: REACTION HOLE IN A 3 PIECE CORE PLASTIC