looking for info on doing QB78-D power mods

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looking for info on doing QB78-D power mods

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m-134

Post subject: looking for info on doing QB78-D power mods

Posted: Sat Mar 07, 2015 11:16 pm

Joined: Fri Jun 12, 2009 1:00 pm
Posts: 177
Location: thunder bay ontario

I had a QB78 deluxe a few years ago but I pretty much forget the mods for tuning these ones. I have my PAL so I want to get it as powerful as I possibly can with CO2. I know about replacing the valve-breach seal, and polling/lubing the piston, but what else is there? is there anything I can do to the valve or something to increase the power?

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colt 1911's are like woman, when you try one you wanna try them all

beeman FH500
Crosman 1377 customized
Walther PPK/S
QB78-D .22

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Gippeto

Post subject: Re: looking for info on doing QB78-D power mods

Posted: Sat Mar 07, 2015 11:36 pm

Joined: Tue Jun 03, 2008 5:46 pm
Posts: 3009
Location: Canada

Google is your friend. :wink:

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gregb

Post subject: Re: looking for info on doing QB78-D power mods

Posted: Sat Apr 04, 2015 8:11 am

Joined: Fri Apr 04, 2014 9:46 am
Posts: 1

you might want to check out ukchineseairgunforum it is a uk forum but alot of info on these little guns look for posts from porkyyorky he has alot of posts showing how to do just about anything to them

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DougP

Post subject: Re: looking for info on doing QB78-D power mods

Posted: Sat Apr 04, 2015 9:31 am

Joined: Thu Sep 11, 2014 10:59 am
Posts: 482
Location: West of Ottawa

Or do a search here for rsterne's $200 PCP thread. It is about modifying a qb79 but a lot of the mods would be similar.

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- Doug
.................
QB79 .177 (PCP) X 2

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mangerover

Post subject: Re: looking for info on doing QB78-D power mods

Posted: Sat Apr 04, 2015 9:57 am

Joined: Mon Dec 19, 2011 4:58 pm
Posts: 503

Bobs one is best but I found this one good also. http://www.gatewaytoairguns.org/GTA/lib ... 8_Tune.htm

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