How to shim shp with classic RT

[stircrazzzy]

It's a standard RT classic frame with the trigger guard removed and a double trigger fitted. Ok, so I'll probably air up the tank, get a file, and mess with the pin. Thanks for the help everyone!


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[captian pinky]

It's a standard RT classic frame with the trigger guard removed and a double trigger fitted. Ok, so I'll probably air up the tank, get a file, and mess with the pin. Thanks for the help everyone!


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make sure you have a set of calipers. and honestly sand paper does just fine and it removes the metal slower.

[blackdeath1k]

My wifes first minimag that I bought "functioning" had a rt on off in the classic valve. Pin was to long to function. I used a fine nail file to slowly buff the pin. And my digicalipers to check until it got to the proper length.

[Spider-TW]

The online store used to have a 0.765 pin listed. I've always wondered what that one was for.

[Spider-TW]

For clarification the shps that I have are all V2. Yup. The pin in my normal classic rt is 0.744��

I pulled my on/off out last night and shortened the pin to 0.740 (from .751). I also replaced the o-rings as they were very old and stiff, especially the little inside o-ring. The pin didn't even want to move when I was taking it apart. It was well oiled too. It feels much more like my x-valve mags now. I forget how old and grumpy those o-rings get without leaking.

[luke]

I pulled my on/off out last night and shortened the pin to 0.740 (from .751). I also replaced the o-rings as they were very old and stiff, especially the little inside o-ring. The pin didn't even want to move when I was taking it apart. It was well oiled too. It feels much more like my x-valve mags now. I forget how old and grumpy those o-rings get without leaking.

Old o-rings definitely affect the high end of performance of the valve, that's a fact. The .751" pin doesn't help either.

[Spider-TW]

Old o-rings definitely affect the high end of performance of the valve, that's a fact. The .751" pin doesn't help either.

Yes, I didn't mean to discount the pin length. The pull had been both too long and too draggy. I had gotten used to it, but when I got it back together and pulled the trigger, it was instant comfort. Bounce, single shot, bounce, single shot.

I also adjusted my ULT shims on my classic experiment and added some porting. It's looking preetty goood. I'll be ready with lots of mags for the spring big game.

[luke]

I was actually concurring with you on both points. :)

[Mondoatx]

Hey guys,

I think someone mentioned this above but the output pressure of the SHP may vary depending on the design/year of the reg.

I just bought one from my local field brand new 5-6 months ago and according the literature it was set at 1250 PSI output... I tested it... and sure enough... the output was 1250 PSI.

If i recall correclty you can either add or remove shims (i forget which) to get it down to 950... but out of the box it was set at 1250.

Makes the gun RT uncontrollably... lotsa fun ;-)

[blackdeath1k]

Hey guys,

I think someone mentioned this above but the output pressure of the SHP may vary depending on the design/year of the reg.

I just bought one from my local field brand new 5-6 months ago and according the literature it was set at 1250 PSI output... I tested it... and sure enough... the output was 1250 PSI.

If i recall correclty you can either add or remove shims (i forget which) to get it down to 950... but out of the box it was set at 1250.

Makes the gun RT uncontrollably... lotsa fun ;-)

Is yours a shp V2 or V1 reg? I'm curious because all mine are V2 and have a max output lower than the indicated 1250.

[Mondoatx]

blackdeath1k,

Sorry bud... was out of town...

It is a "PRO V2" series...

I had an email conversation with a rep there when the 1250 figure was thrown out... specifically in reference to RTing mags... but I can't find the email...

I checked the manual on their site and it says it is pre set at 1100 lbs... adjustable down to 950...

When I checked it it was several months ago and now I am questioning myself... tell you what... I will be at the field this wknd... I will check it again and let you guys know it is set at.

M

[Spider-TW]

The typical little gauges are really +/-10%, so it is possible you saw 1250. Try to get "second opinions" on those, from a better gauge if it matters. Shims aren't perfect either.

[BigEvil]

GUYS please stop using the SHP ****. Run 850.

[blackdeath1k]

blackdeath1k,

Sorry bud... was out of town...

It is a "PRO V2" series...

I had an email conversation with a rep there when the 1250 figure was thrown out... specifically in reference to RTing mags... but I can't find the email...

I checked the manual on their site and it says it is pre set at 1100 lbs... adjustable down to 950...

When I checked it it was several months ago and now I am questioning myself... tell you what... I will be at the field this wknd... I will check it again and let you guys know it is set at.

M

Ha-ha. I wasn't that concerned with the difference in values. Especially considering how inaccurate them little gauges are when new. Let alone old. I was more curious if the V1 regs really were consistently 1200psi or if they were closer to 1100 as well.

Big E. To be honest pressure is irrelevant to me currently. At this point I haven't had my RT together for almost a year. It's missing a trigger frame. Ive Been using my Geo3 due to weight difference.

[Nobody]

GUYS please stop using the SHP ****. Run 850.

You mean remove any potential problems with over pressurizing the valve and just modify other parts to achieve the same outcome? Pffffft....