Pat123's Hybrid Rifle

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SpudFiles Forum Index » Hybrid Cannon Showcase » Pat123's Hybrid Rifle

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Pat123's Hybrid Rifle

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How good is it?

one of the best

[ 0 ]

great

40%

[ 4 ]

good

20%

[ 2 ]

ok for first hybrid

40%

[ 4 ]

bad

[ 0 ]

Total Votes : 10

Author

Message

pat123

Posted: 03/28/2008 16:21 PM Post subject: Pat123's Hybrid Rifle

Lieutenant Colonel

Joined: 23 Dec 2006
Posts: 474
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Here it is finally after alot of problems. thanks to everyone who helped me.

Pat

myhybrid2.JPG

Description:

the whole thing

Filesize:

4.46 KB

Viewed:

1034 Time(s)

myhybridfinally.JPG

Description:

my hybrid

Filesize:

67.9 KB

Viewed:

88 Time(s)

STHORNE

Posted: 03/28/2008 16:24 PM Post subject:

Master of Spuds
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500.99 Spud Bux

very nice job. very nice job indeed.

some questions though:
why so much electrical tape?
and... source of ignition? stun gun i presume

SpudFarm

Posted: 03/28/2008 16:53 PM Post subject:

Hybrid Guy
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Joined: 04 Nov 2006
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wow kinda reminds me of my hybrid Smile

do you got any numbers? Wink

pizlo

Posted: 03/28/2008 19:13 PM Post subject:

Colonel

Joined: 22 Dec 2006
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922.33 Spud Bux

The huge wad of tape is a nice addition.

bigbob12345

Posted: 03/28/2008 19:15 PM Post subject:

Experienced n00b
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Joined: 01 Dec 2007
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370.57 Spud Bux

Great job
some specs would be nice though

pat123

Posted: 03/28/2008 19:19 PM Post subject:

Lieutenant Colonel

Joined: 23 Dec 2006
Posts: 474
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Quote:

why so much electrical tape?
and... source of ignition? stun gun i presume

It is actually black duct tape. it is the only thing i could find to attach the electric bbq lighter.

I haven't shot it yet. I will tomorrow. I'll post damage pics then.

the chamber is roughly 13" of 1.5" sch 40 steel
barrel 36" .5" sch40 steel

edit: changed chamber from 18 to 13"

Last edited by pat123 on 03/28/2008 19:37 PM; edited 1 time in total

bigbob12345

Posted: 03/28/2008 19:23 PM Post subject:

Experienced n00b
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barrel could be a lot longer(atleast 72in).
I would also recommend a larger bore barrel with a chamber that size, A 1in barrel should work good with it.

pat123

Posted: 03/28/2008 19:33 PM Post subject:

Lieutenant Colonel

Joined: 23 Dec 2006
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Ok thanks.
could you help me with my pressures to fill my meter and stuff. I tried several times and I am getting wierd numbers.

bigbob12345

Posted: 03/28/2008 19:40 PM Post subject:

Experienced n00b
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here is a link to the math required for finding the right pressure for hybrid meters
http://www.spudfiles.com/forums/hybrid-fueling-101-t13602.html

pat123

Posted: 03/28/2008 20:00 PM Post subject:

Lieutenant Colonel

Joined: 23 Dec 2006
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so if my chamber volume is 23ci I would do this
23/.958-23
this would give me 1.008
I divide that by my meter volume which is .45ci
now I have 2.24 bar?
multipy that by 14.7
giving me 32.93psi
so for a 1x mix i fill my meter to 32.93?
for 2x i us 64 and so on?
how do I get to a 4x mix? propane tanks don't hold 131psi do they?

jon_89

Posted: 03/28/2008 23:31 PM Post subject:

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Looks pretty good. In your math I think you need to convert psi to bar or visa verca. I am not 100% positive though.

bigbob12345

Posted: 03/28/2008 23:36 PM Post subject:

Experienced n00b
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Pat:You just charge the propane meter to 64psi twice and you will get a 4x mix.

Posted: 03/29/2008 20:37 PM Post subject:

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its a little harsh on the eyes, but if it works it works!

pat123

Posted: 03/30/2008 14:04 PM Post subject:

Lieutenant Colonel

Joined: 23 Dec 2006
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Quote:

Pat:You just charge the propane meter to 64psi twice and you will get a 4x mix.

thanks I get it now that was a stupid question Embarassed

Quote:

its a little harsh on the eyes, but if it works it works!

Yeah I am trying to find a better way to attach the bbq lighter and some way to hide the wires. I might just cut them shorter but they have the tips to attach to the bbq lighter. HOw would you attach the propane tank other than zip ties?

SpudFarm

Posted: 04/23/2008 15:38 PM Post subject:

Hybrid Guy
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Quote:

hybrid Rifle- finished, 1400 fps with a 5X mix based on hgdt.

pretty much doubt that.. my bigger hybrid with 80" barrel and 5x with a marble got 1075fps.

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