LP setup not working

[FullMetal]

My marker is shooting 237 fps at 575 psi, I figured with my setup I would at least get down to 350 psi and still shoot 285 fps. And it isn't even consistent,sometime it will only shoot like 100 fps and sometime it won't re-cock. I have a light valve and main spring. What can I do to fix it? Will changing my dwell help? Oh yea my setup is in my sig

[NB_Hacker_NB]

Try changing the main spring to heavy and the valve spring to light or both to heavy.

[ad0131065]

I think your problem is the magnaport valve. I have heard that they dont recock much lower than 400 psi b/c the exhaust hole is so big it doesnt leave enough pressure to recock the gun properly. Most people that I have talked to that had that valve had the same problem you do.

[druid]

I think it's a combination....
*springs...do as said ^^^^
*valve...change to a higher flowing valve
*Teardrop...teardrops have heavier porting than others like J&J or CF barrels. Try someone's J&J/CF to see if it gets any better...

[FullMetal]

Something I just remembered, it was shooting fine until I put the assault block and tear drop on that but I don't think the barrel has anything to do with it, I was shooting a 16" Winforce before and it has porting most the way down the barrel.

[ooglieboogliebob]

Try a light valve and a heavy mainspring .. ... but with your setup .. it should work perfectly fine with the heavy valve and a light mainspring ... (less blowback, and more efficient)

[Eaglelox]

you could also try clipping your light valve spring.

[Skidds]

Originally Posted by FullMetal

Something I just remembered, it was shooting fine until I put the assault block and tear drop on that but I don't think the barrel has anything to do with it, I was shooting a 16" Winforce before and it has porting most the way down the barrel.

Make sure the hole in the assault block is 3/16 of an inch.... use a drill bit to see... Since it was fine until you changed the 2 parts...... the teardrop isnt ported all the way down so it shouldnt be the barrel.

[druid]

You never said if you polished the internals, modded the valve pin (for better air flow) or whether the ACS bolt was aluminum or delrin.
*Polished internals+ShockerLube=less friction
*Modded valve pin allows more air to flow through the valve
*Aluminum is heavier, Delrin is lighter but can swell

Air up your marker without paint and without hopper. Take a bowl of water and dip your fingers in it. Hold your fingers over the feedneck and fire a few dry-fires. See if you can feel air blowing up the feedneck. Next, dip yer fingers again and hold them close to the back of the marker where you cock the bolt. See if you can feel air escaping around the bolt to the back of the marker. If you do, you need to get a different bolt that has better chamber-sealing qualities.

[FullMetal]

The bolt is delrin, I hate it it doesn't work and I even broke it in.
The valve pin is a 32* it came with the magna port, it looks like a better flowing pin then a stock or even a modded stock.
My internals are not polished, I was told the DH striker didn't need it and I haven't gotten around to polishing the inside of my body. I would like another bolt something like an AKA lightning but I don't think they make them for side cocking spyders.