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Blue Hopper 
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Joined: 20 June 2004
Location: United States
Status: Offline
Points: 841
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 Topic: The uses of porting
Posted: 22 June 2004 at 1:45pm |
Ive been told alot of things about porting and if anyone understands about how they work and can help me out please leave a reply. Does porting in the barrel have any more puposes than to cut back on the sound when the gun fire, do they make you have to use more air, is it bad to have them halfway down the barrel like on the stock 98 barrels.
If any one can help thanks.
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Paintball Panda
Gold Member
Joined: 07 June 2004
Location: United States
Status: Offline
Points: 1590
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Posted: 22 June 2004 at 1:56pm |
Porting also Help your internals if your Barrel was cloged.
Porting can also give Extra Accuracy Ex: Teardrop, it has that Special porting which gives it better accuracy.
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Blue Hopper
Member
Joined: 20 June 2004
Location: United States
Status: Offline
Points: 841
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Posted: 22 June 2004 at 5:37pm |
Thanks, and what sort of Barrell would you suggest buying i dont realy care how loud it is though
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procarbinefreak
Moderator Group
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Joined: 12 June 2002
Location: United States
Status: Offline
Points: 12920
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Posted: 22 June 2004 at 6:03pm |
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porting really has nothing to do with accuracy. the spiral porting is a marketing gimmick and really just affects the amount of noise. barrels with lots of porting will be quieter than a barrel with no porting.
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metal_monster87
Member
Guested, Racial Slur (F22)
Joined: 07 February 2004
Location: United States
Status: Offline
Points: 169
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Posted: 22 June 2004 at 7:33pm |
spiral porting decreases turbulance in the barrel making it more accurate. also more porting results in less noise.
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http://punisher87.mypicgallery.com/mpg/Route.asp
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hashi2008
Gold Member
Strike 1 - Racial Slur
Joined: 14 June 2004
Location: United States
Status: Offline
Points: 1267
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Posted: 22 June 2004 at 8:16pm |
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Yeah, I heard that the ball sorta "floats" and the porting allows the air to escape reducing wobbling in the barrel.
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You Wont See Me
Moderator Group
Found in Big Al’s underwear drawer
Joined: 02 December 2003
Location: Neutral Zone
Status: Offline
Points: 13335
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Posted: 22 June 2004 at 9:41pm |
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Spiral porting does NOTHING for accuracy.
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A-5
E-Grip
JCS Dual Trigger
DOP X-CORE 8 stage x-chamber
Lapco Bigshot 14" Beadblasted
Optional setup:
R/T
Dead on Blade trigger
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SnakeEyes
Gold Member
Joined: 15 December 2002
Status: Offline
Points: 1097
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Posted: 22 June 2004 at 11:03pm |
 metal_monster87 wrote:
spiral porting decreases turbulance in the barrel making it more accurate. also more porting results in less noise. |
Thats funny, if you ever take a fluid dynamics class you will learn that turbulent air layers actually reduce air resistance on an object and allow it to travel straighter and faster. Same as how a fast ball has proper back spin to trip into the turbulent air region to allow it to travel faster than a curve ball or slider.
As for porting, it does several things. It allows excess air pressure to escape or enter the barrel. Blow back pressure can be alleviated with porting. The way air escapes also effects the sound propogation from the end of the barrel. Lastly porting helps clear broken paint residue from the barrel.
As for porting adding accuracy, thats just bs. Sideways spin on a paintball would do nothing more than cause it to hook or slice.
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Which falls faster, a lead ball or your IQ after reading some of these posts? PSU Paintball
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Stormy Knight
Member
Deactivated by request
Joined: 19 October 2003
Location: United States
Status: Offline
Points: 0
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Posted: 25 June 2004 at 3:38am |
metal_monster87 wrote:
spiral porting decreases turbulance in the barrel making it more accurate. also more porting results in less noise.
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If that was true, then all ported barrels would have spiral porting.
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A-5
Armson DOT Sight
Armson Raised Sightrail
DOP Bullet Drop
DOP RVA
DOP X-Core
DOP Vertical Adapter
E-Grip(APE)
Flatline Barrel
HPA
JCS Duel Trigger
Lightening Bolt
QEPH
Vortex Mod
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LordJovian
Member
Joined: 01 June 2004
Location: United States
Status: Offline
Points: 1882
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Posted: 25 June 2004 at 7:37am |
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The holes make it quieter, and make it look pretty. The "spiral" effect wouldn't make the ball spin, it'd make the air behind the ball spin. Much like the tip of an airplane wing- it causes the air to form a tornado-like effect and produce drag on the plane. Fortunately, there is no spiral effect, which would probably make the ball shoot horribly.
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A-5
E-grip
Chipley Custom Carbon Graphite 16"
Evil Adapter(Spyder)
32 Deg New '03 XChamber
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LPK
68/4500 HPA
R-5
CP Reg
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TheHoff
Member
Joined: 11 March 2004
Location: United States
Status: Offline
Points: 498
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Posted: 25 June 2004 at 8:23am |
LordJovian wrote:
Fortunately, there is no spiral effect, which would probably make the ball shoot horribly. |
If paintballs where more precise then there would be a demand for rifled barrels. but they are too unpredictable to have a 1:12 twist or something similar. Remember real guns use rifling and that puts a spin on the bullet.
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blame it on the irish....
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killernoodle
Member
Joined: 21 June 2004
Location: United States
Status: Offline
Points: 44
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Posted: 25 June 2004 at 8:58am |
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You dont need to put a spin on a paintball the same way you have to put
a spin on a bullet. Bullets are long and oddly shaped and would
tumble in flight if not gyroscopically stabilized by rifling, reducing
accuracy. Round shot, on the other hand, does not need the rifling as
tumbling in flight for a paintball is less an aerodynamic problem than
it is in a bullet. In order to achieve any aerodynamic benefit
from spinning the ball, it must be an extreme backspin and this can
really only be achieved with a flatline. Porting does nothing but
silence.
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I make all my own mods.
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TheHoff
Member
Joined: 11 March 2004
Location: United States
Status: Offline
Points: 498
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Posted: 25 June 2004 at 10:51am |
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Hence I said REAL guns use rifling and you can't with a paintball because of inconsistancies among other things.
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blame it on the irish....
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Blue Hopper
Member
Joined: 20 June 2004
Location: United States
Status: Offline
Points: 841
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Posted: 25 June 2004 at 12:06pm |
A round projectile such as a paintball somehow having the spin effect like on bullets i dought would decrease accuracy because this effect had been used even when we fired round projectiles in muskets and cannons. Though rifling in muskets did not come somewhere until late 1800's. 1880's i think. So if this effect was somehow put on a paintball it should increase accuracy. Though it would seem to me that the flatlines spin would still function better.
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hashi2008
Gold Member
Strike 1 - Racial Slur
Joined: 14 June 2004
Location: United States
Status: Offline
Points: 1267
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Posted: 25 June 2004 at 12:23pm |
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Think of it this way. A bullent is shaped like a football. A paintball is shaped like a baseball. How do you throw a football? With a spiral. How do you throw a baseball? With a backspin.
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The uses of porting