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Old 03-22-2006, 08:15 PM #43
Icedrelm
 
 
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Less pressure hitting the valve, less noise, So theres a good chance it will.

Jeff
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Old 03-22-2006, 08:42 PM #44
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alright I got to things they both might seem kinda stupid anyway. where axactly would the lpr go on the solinoid. Also just wanted to inform you ice you know how I had that leak in that air fitting weel I found that one of the orings is broken, its the lowest one so its the one that stops air coming out of from coming out of that hole so I thought that blue loctite would seal it up and would need to get a new oright ya I was wrong there is still a leak so now I guess I need a new oring a local hardware store would work woundn't it?
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Old 03-22-2006, 08:42 PM #45
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Ice or DTdoc,
Do you see anything that will go wrong with this mod cause I am in-between ordering this or with my coming RPM?
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Old 03-22-2006, 08:47 PM #46
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Brandog:
Umm prehaps, Depend bring it with you and see if they do.

Streskin004:
I'd wait to see if ti works, no tests have been done yet.

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Old 03-22-2006, 08:49 PM #47
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That is what I think that I will end up doing.
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Old 03-22-2006, 09:00 PM #48
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but do u think thats y its leakin? also where exactly would the lpr go in the solinoid
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Last edited by brandog : 03-22-2006 at 09:54 PM.
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Old 03-23-2006, 08:07 AM #49
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Ice how did you get your va adaptor closer than dt did? did you drill and tap the body?
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Old 03-23-2006, 10:03 AM #50
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Nope, drilled and tapped the VA.

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Old 03-23-2006, 11:51 AM #51
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oh...so are you saying that the va was female and you drilled and tapped it to fit the adaptor for the steel braided line on the gun.
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Old 03-23-2006, 01:21 PM #52
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Exactly.

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Old 03-23-2006, 02:32 PM #53
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hmm, If you want to be 100% precise. VA is normally male, you have to cut the male portion off, then drill and tap the VA. Or I guess you could just drill through the male portion, I'll be cutting them off first when I do it this weekend.

Last edited by DTDoc : 03-23-2006 at 02:48 PM.
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Old 03-23-2006, 02:52 PM #54
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awesome thats a clever method, so since im cutting off the threads any way it does not matter what va i use. So if I wanted I could take an angled cocker va(like 15*) and drill and tap that to fit. are the threads on the air line fitting you used standard or metric and what size?
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Old 03-23-2006, 03:23 PM #55
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I used the one that came with the gun.

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Old 03-25-2006, 11:03 AM #56
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Hey Ice Just got the gun last night I love it! A question about lubing it though...

do i basically lube the things in these 2 pictures?

-Now the Front cap, valve and valve spring.



-Now the ram, bolt, Q.E.V, and Return spring.



(well i thought there would be pictures but i guess you can match the title to the picture...)

also do I have to use a dow based lubricant? I have a pirahna/pmi gun oil stuff would that work?
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Old 03-25-2006, 05:47 PM #57
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Just lube the ram, and the valve pin, that is all.

Jeff
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Old 03-26-2006, 07:07 PM #58
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dt or ice have u guys found out weather or not the lpr is goin to work on the rpm or not?
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Old 03-27-2006, 08:07 AM #59
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Ask DT, but he said it would be awhile
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Old 03-27-2006, 09:29 PM #60
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alright dt?
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Old 03-27-2006, 10:28 PM #61
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The lpr will be a bit. I have shifted my focus a little.

Being able to lower the lpr pressure will be useless if I can't adjust dwell. Here's my reasoning. The current stock setup lets the gun run 250psi or so to fire the ball and to move the ram. With such a high pressure pushing the ram I'm assuming the stock board has a pretty low dwell time. Let's say you drop the ram preassure to 100 or so with the lpr, you'll either need to up opperating pressure (the pressure to shoot the ball) and/or increase dwell time (this is not possible with the stock board) to compensate for the decrease in the force that the ram hits the valve. So i guess I could just slap the LPR on and try it and see how high I have to up the opp pressure to shoot 280 fps or so but i'd rather tune it a little more precise.

The whole purpose of the lpr is to decrease the force by which the ram hits the valve and decrease kick. In theory if you decrease the mass that is moving (ram/bolt pin ect) you could also decrease kick.

So what i've decided to try before the lpr is to see if the wrath delrin ram (Alamo city paintball) will fit in the RPM. By visual inspection it looks almost identical and weighs almost half of the stock wrath ram which is similar in material to the RPM ram. This will drop the moving mass. Now since we all know F=MA I'm going to assume that this decrease in ram mass is going to result in decrease force by which the ram hits the valve. I'll then need to find some way to increase dwell. Well, since I'm too impatient to wait, i'm gonna mod a board to fit in the RPM. I've been e-mailing the popular board makers and I think i've got it figured out.

I also think that what makes the super light rams problematic on the wrath (check out the threads regarding this in the diablo forum) makes it ideal for the RPM. On The wrath they had to seriously "tune" LPR pressure and Opp pressure up to compensate for the lighter ram. I believe the "average" wrath runs lpr pressure or low 100's. Since we're running such high ram pressures anyway, we should be able to get away with a lighter ram and up our dwell slightly. Of course, it's completely possible i'll complete wreck my rpm, in which case i'll just revert to stock and rock out an already awsome stock marker.

So, to recap:

LPR= decrease pressure to ram = decrease force it hits the valve = decrease kick

Light ram=decrease moving mass = decrease force of ram on valve = decrease kick

Of course, I might end up doing both to see how it all works out. but only time will tell.

Last edited by DTDoc : 03-27-2006 at 10:30 PM.
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Old 03-28-2006, 08:10 AM #62
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Umm I belive you are wrong, herre is my resoning, you need the more mass of the ram. If you lower that mass you need to increses presser, witch is what we dont want. More presser means more kick, think of it this way, there will be more of a kick foward, but less of a kick back words. I have decided to ditch the Lpr Idea, It simply is not needed, and ti means more to fiddle with and more to go wrong, let me know your ideas.

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Old 03-28-2006, 09:37 AM #63
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You're partly right. Lowering ram mass alone will definitely require increasing the input pressure OR you can increase the dwell (increasing the amount of time the valve is open) to compensate.

What you're saying is if you lower ram mass then you have to increase the pressure behind the ram to get the appropriate FPS. This I agree with but is not what I plan to do. I'm planning on lowering the ram mass and increasing the amount of time the valve stays open, thus compensating for the lowered force hitting the valve.

Of course the problem is, if you have too light of a ram you run the risk of not having enough initial force to compensate for front side valve pressure, in which case dwell adjustments will do nothing for you.

Take a look throught the diablo forum at the threads about the lighter rams, and t-board tuning.
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