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Thanks for sharring.
So could anyone recommend a arg barrel for the next setup :
Laylax cylinder
laylax piston
Laylax pss10 150 spring
laylax spring guide
laylax hop up chamber
with stock vsr g spec hop up chamber and stock cylinder i get 175 m/s with 0.20 with laylax spring 150, pretty good seal.
Your best bet is this:
0.3gm bb use a 554mm barrel (15821 mm^3) = 2.26:1
0.32gm bb use a 530mm barrel (15136 mm^3) = 2.36:1
0.36gm bb use a 500mm barrel (14279 mm^3) = 2.51:1
0.4gm bb use a 470mm barrel (13422 mm^3) = 2.67:1
0.43gm bb use a 430mm barrel (12279 mm^3) = 2.92:1
0.45gm bb use a 400mm Barrel (11423 mm^3) = 3.13:1
thank you sir!
 
Can I add materials ( example rubber pads/sorbothane/etc... ) on piston head, it will reduce air volumes to match my cylinder ratio with BB weights and inner barrel too, right ?
 
Yes you can put on sorbathane to make the cylinder smaller.
 
Quick question, when measuring cylinder volume, do you also calculate the volume of the cylinder head nozzle and air seal nozzle? Or is the volume insignificant?
 
Discussion starter · #69 ·
That volume is pretty insignificant, yes, unless you have a very small cylinder of course. But generally , especially for bolt action sniper rifles, you don't need to take it into account :tup:
 
That volume is pretty insignificant, yes, unless you have a very small cylinder of course. But generally , especially for bolt action sniper rifles, you don't need to take it into account :tup:
If that correct, why piston with airbrake need shorter inner, I think it just fill in the volume of cylinder head nozzle, right :nuts: ?
 
That volume is pretty insignificant, yes, unless you have a very small cylinder of course. But generally , especially for bolt action sniper rifles, you don't need to take it into account :tup:
It's actually for an AEG I'm working on but thanks for the reply! Im guessing because there's nothing to push through the nozzle, the volume in the nozzle is dead air so to speak.
 
Discussion starter · #72 ·
If that correct, why piston with airbrake need shorter inner, I think it just fill in the volume of cylinder head nozzle, right :nuts: ?
That's because the airbrake prevents air from being supplied to the barrel much sooner, so the effective cylinder volume is lower. The moment the airbrake enters the cylinder head, the remaining air will be used to slow down the piston, not accelerate the bb further ;)
 
Hey Reliku, if you get a chance check out my build in the Longrange AEGs.. Just in the process of calculating the cylinder/barrel ratio and wouldnt mind some feed back from you :tup:
 
Discussion starter · #74 · (Edited)
Hey Reliku, if you get a chance check out my build in the Longrange AEGs.. Just in the process of calculating the cylinder/barrel ratio and wouldnt mind some feed back from you :tup:
Just read it, I generally don't read the AEG section though :hehe:

Either way, the ratio you want will be about the same as on a bolt gun, since the physics are exactly the same once the piston is released from the gears. If you're shooting at 450 fps I'd use .36 bb's, so a ratio of 2.5:1 would be a good choice :tup:

Piston travel length is different so the exact optimal ratio will be slightly different from a bolt gun but unless you want to chop up your barrel and record muzzle energy with every bb for every weight and every barrel length you're not going to find the "exact" optimal ratio for your setup.

And you don't need to, really. If you're using .36 I'd just stick with 2.5:1. Perhaps in your case 2.4:1 or 2.6:1 would have been a bit better because it really depends on a lot of factors, but the difference there is so marginal, you won't even notice it. 2.5:1 will be fine :tup:
 
Many thanks Reliku! I seen you post elsewhere that a 2.5 c/b ratio is good for .36s so I was targeting that number. The cool thing about the bore up set is that I can achieve the same c/b ratio while using a longer inner barrel than with the regular cylinder. Depending on the ratio, it can be upwards of 40mm longer.
 
Hey hey,

Finally.... I have read everything and U know what? More I read, less I am sure what to get :)

Well a bit about what I have and what I want. I have Well MB01/08. My Mancraft kit is already on the way. So in Lithuania I can max go for 650 fps with 0.2 bb. With that fps I will probably be shooting with 0.43 or maybe 0.4 (any suggestions?).

Currently I want to upgrade hop up changer and rubber, so I need to choose the inner barrel. I am still considering between tighbore and widebore, but judging from what I understand already, due to heavy BB I will have to go for probably 6.03 (madbull maybe or any new good brands for price/performance?) Hop up chamber will be airsoft pro, I will try to get maple leaf 70 RH rubber, with flat bridged nub :)

My priority is range and as much as possible of it, till it get into logic that each meter to add cost lot of money :)

thanks for advice :)
 
I am still thinking about it, but can't decide to go for AA, because it is duoble the price over airsoftpro. I know it is the best You can get, but will it be, that much of a difference, if both will get teflon mod? If it is only airseal I am not sure, if it is worth it. Maybe better to invest the difference into better cylinder head :nuts:
 
The AA hopup chamber is worth it. Just fork out the money and you will not regret it
 
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