[gutgut2hi68]

yup, its a fresh one.

[muroks]

Ooh~ I just ordered mine.

Can't wait to try it out.

[benzy2]

I've been reading a bit on this bolt and see that the sft can is the recommended can as it has more volume than the he can. My question is what about this volume makes it best? Best for efficiency? Best for smoothness? Best for cycling speed? Something else? I'm going to be running an HE can to start but was looking for the most efficient setup. I'm also looking at running a reduced velocity for reballs. Any suggestions for setup to run ~225-250 fps while maintaining best efficiency? The vast majority of my use comes in a basement with reballs so that is my first priority to start.

[tyronejk]

Higher volume means you can lower your pressure which makes your gun smoother, but less efficient. Your HE can will be more efficient than an sft can. As for the lower fps, you may need to get an adjustable bolt guide.

[AndrewTheWookie]

What I've been seeing and assuming is more volume = better for the "reset" slots in front of the bolt sail to help close the bolt faster.

[bnkr king]

Originally Posted by benzy2

I've been reading a bit on this bolt and see that the sft can is the recommended can as it has more volume than the he can. My question is what about this volume makes it best? Best for efficiency? Best for smoothness? Best for cycling speed? Something else? I'm going to be running an HE can to start but was looking for the most efficient setup. I'm also looking at running a reduced velocity for reballs. Any suggestions for setup to run ~225-250 fps while maintaining best efficiency? The vast majority of my use comes in a basement with reballs so that is my first priority to start.

editing my set-up into here b/c i know at least one person will ask:
--Engine: Eigen, NDZ ULP can, stock sleeve, stock HE guide fitted with 12/70 buna o-rings (red Lurker rings were extremely loose fitting and actually caused more stiction than the buna's)
--Electronics/noid: Humph noid attached to a hater board running 14 ms dwell
--IPR mod too

I have to shoot 250 fps becuase I play indoors on a pretty small field, my Eigen runs 140 psi, 14 ms dwell. I shot half a case on Friday, and only had to fill my 45/45 once. I went with about 2.5k worth of air, emptied it and got it filled to 4k once, now it's at 2k. These are just very rough estimates, but if i shot 4.5k of air for 1/2 case thats 4.5 psi/shot. 4500psi/4.5psi per shot = ~1000 shots from a 45/45. Or ~1500 from a 68/4500. Pretty damn good numbers, but do take into consideration I'm playing low fps, it'd be a touch lower @ 280, but nonetheless I think they are still some of the best efficiency numbers posted yet. I think the numbers are only going up because I don't think it's going to fully break in until at least 5 cases thru it, each case i can drop the dwell ~2 ms. I'm targeting 140 psi/10 dwell

I'm going to be playing at least 2 or 3 times this week so I can keep better track of the numbers and get a better calculation if anyone is interested.

[RLN]

^^^good info....I believe I'll be running my Eigenbolt on a HE can and HE bolt guide which is in the Octane I recently bought which arrives either tomorrow or the following day! But I'm also tempted to run it on a NDZ ULP CAN, bolt guide, and Delrin sleeve which is in my SFT. The Eigen is expected to arrive by this weekend so I should be able to break it in a little.

In any case if I can get even close 1000 shots I'd be happy as I play xball and my style of play rarely shoots more than 4 pods so that's all I need. The extra efficiency helps with not having to refill air if for some reason we are behind the clock.

[Spy 1]

Lurker I just received the bolt thnx man I am off to trying it out

[benzy2]

So the bolt came in and it's been up and down so far. Setup is a NXT with HE bolt and stock guide. None of the orings, nor none of the 100 of each size from McMaster seal but give a loose enough fit that the bolt slides under it's own weight. The can orings are close and with use the sail oring is getting closer. The bolt guide orings (red) are still stiff. I tried the largest 011 orings and they just vent. The smallest 012 orings from McMaster (011/70 Buna-N) are a bit tighter than the red orings included. Is there a metric oring that fits in between? I've got to run my dwell at 55-60 chirps from bottom to cycle consistently which seems really high. Gauge pressure shows 180 psi. Efficiency is running around 1200 psi for 2 full hoppers (210 balls counted each hopper) which puts me around 1500 shots on a full 68/45. That isn't bad by any means but if there's another 500+ shots per tank to get out of her I'm all ears.

[Lurker27]

I have some 9mm by 1.6 mm metrics that should be pretty close. Definitely going to get better eff with less friction

[jim4130]

Did you happen to send some of those my way yet ryan?

[Gisgo09]

Originally Posted by benzy2

So the bolt came in and it's been up and down so far. Setup is a NXT with HE bolt and stock guide. None of the orings, nor none of the 100 of each size from McMaster seal but give a loose enough fit that the bolt slides under it's own weight. The can orings are close and with use the sail oring is getting closer. The bolt guide orings (red) are still stiff. I tried the largest 011 orings and they just vent. The smallest 012 orings from McMaster (011/70 Buna-N) are a bit tighter than the red orings included. Is there a metric oring that fits in between? I've got to run my dwell at 55-60 chirps from bottom to cycle consistently which seems really high. Gauge pressure shows 180 psi. Efficiency is running around 1200 psi for 2 full hoppers (210 balls counted each hopper) which puts me around 1500 shots on a full 68/45. That isn't bad by any means but if there's another 500+ shots per tank to get out of her I'm all ears.

Break it in thoroughly. Especially the inner bore.

[benzy2]

Originally Posted by Lurker27

I have some 9mm by 1.6 mm metrics that should be pretty close. Definitely going to get better eff with less friction

Cool, I'll keep at these and see where it goes. If it stays the same I'll look at picking up some of those metric orings.

EDIT: Placed an order for a few different sizes all around there from McMaster. I've got 100 of 8.5x1.5m, 9x1.5mm, 9.5x1.5mm, and 9.1x1.6mm coming so hopefully I've hit enough combos to give me the best results.

Originally Posted by Gisgo09

Break it in thoroughly. Especially the inner bore.

I'm trying. I've got about 1000 reballs through her and another couple tanks of dry fire since last night. I'm going to see how it goes over the next 5-10 tanks of air and go from there.

[Shooter28]

You probably want to change a couple orings/relube about every case or during break in.

[benzy2]

I've been relubing every tank. I haven't changed orings as the can orings seem to be just about right now, the sail oring is getting better and is much looser than it started, and the bolt guide orings have the least friction of those I have available. I can swap orings out but they don't leak currently and are the closest to suggested fit as I have found so far.

[Spy 1]

mine is smooth but leak down the barrell need to get more air to keep trouble shooting and break in the bolt. I might need to order some o-rings since I never needed to change a o-ring on none of my shockers

[inmylife2415]

You using the ARB?

[Spy 1]

Is the arb the white piece you send me ? I am using the whole guide just the way you send me. And put it in and tested ......

[inmylife2415]

Pm'd you bout it

[gutgut2hi68]

I hear a wierd "horn" sound when I air up my gun while the eigen bolt is in it. What's causing this? Anyone know?

[zzANGUISHzz]

Originally Posted by gutgut2hi68

I hear a wierd "horn" sound when I air up my gun while the eigen bolt is in it. What's causing this? Anyone know?

Air retracting the bolt possibly.