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Old 01-28-2008, 12:06 PM   #1 (permalink)
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Talking HPA on my Thunder Cat....any issues?

Title says it all. Got this marker new and it didn't come with a manual. Looked it up online and the manual i founf said nothing about HPA. I am assuming my HP Crossfire tanks will work fine but wanted to make sure.

Any upgrades besides a barrel i should know about?



Thanks,
Matt

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Old 01-28-2008, 02:05 PM   #2 (permalink)
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I'm confused, do you have a fox, or a cat?
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Old 01-28-2008, 02:18 PM   #3 (permalink)
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I am dumb.

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I'm confused, do you have a fox, or a cat?
Yes my brain was on a retreat when I added the picture. I have a Black Thunder Cat. Thanks for your patience.

Matt

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Old 01-28-2008, 03:27 PM   #4 (permalink)
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Matt,

I found that getting an AlleyCat (same system as the ThunderCat) to recock reliably on HPA was possible, but use a high output (800-850psi) tank with a good flowing regulator, and make sure all your seals are new.

The Cats divert some of the airflow to recocking, and some to firing the ball. Recocking and velocity adjustment are a balancing act with the available pressure.

I didn't have any problems when using Co2.....

Good luck,


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Old 01-28-2008, 03:36 PM   #5 (permalink)
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Thanks.

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Matt,

I found that getting an AlleyCat (same system as the ThunderCat) to recock reliably on HPA was possible, but use a high output (800-850psi) tank with a good flowing regulator, and make sure all your seals are new.

The Cats divert some of the airflow to recocking, and some to firing the ball. Recocking and velocity adjustment are a balancing act with the available pressure.

I didn't have any problems when using Co2.....

Good luck,


Tim
I have two Crossfire 68/4500 HP tanks.

Thanks,
Matt
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Old 01-28-2008, 03:44 PM   #6 (permalink)
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I have two Crossfire 68/4500 HP tanks.

Thanks,
Matt
Crossfire put out regs with different outputs. One of mine is 800, and the other (blue bottom) is 450psi.....


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Old 01-28-2008, 08:00 PM   #7 (permalink)
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reply.

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Crossfire put out regs with different outputs. One of mine is 800, and the other (blue bottom) is 450psi.....


Tim
Mine are definately HP, 800 psi output.

I will try it out and see how it shoots.

Thanks,
Matt
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Old 01-28-2008, 08:21 PM   #8 (permalink)
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I know Railgun did a fair amount of fiddling and testing with his several Alley Cat's on HPA and never did get a good reliable balance that worked 100% of the time. His solution was to just use CO2.
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Old 01-28-2008, 09:54 PM   #9 (permalink)
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Yeah, but I've also come to the conclusion that all my hammer Orings are a bit too old and getting hard. These things need to have really new, soft and supple hammer Orings to get a good seal and recock reliably.

Having said that there's no doubt that the CO2 hits with more force. It's a heavier gas than air so at the same pressure letting out the same amount it stands to reason that there's more energy in the heavier gas.

Mine were fine with the CO2 while it was warmer last fall. When I tried to chrono them after it had gotten cold around here the CO2 didn't have the hutzpah to do the job anymore and they burped to a halt and blenderized a few balls.

Give it a try and if it works consistently for you then great. But at the first sign of trouble go CO2 direct feed.
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Old 01-29-2008, 08:22 AM   #10 (permalink)
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Adjustable reg tank.

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Yeah, but I've also come to the conclusion that all my hammer Orings are a bit too old and getting hard. These things need to have really new, soft and supple hammer Orings to get a good seal and recock reliably.

Having said that there's no doubt that the CO2 hits with more force. It's a heavier gas than air so at the same pressure letting out the same amount it stands to reason that there's more energy in the heavier gas.

Mine were fine with the CO2 while it was warmer last fall. When I tried to chrono them after it had gotten cold around here the CO2 didn't have the hutzpah to do the job anymore and they burped to a halt and blenderized a few balls.

Give it a try and if it works consistently for you then great. But at the first sign of trouble go CO2 direct feed.
WAs wondering is an adjustable reg tank would help. Something like a dynaflow that is adjustable, maybe bump the pressure up to 850 or 900. Just an idea.

Matt
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