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***ChrisTheDuckMan*** · January 2nd, 07:29 PM

I feel ashamed asking this...but here it goes:

Where on earth is the damn spring cap on my impulse to adjust my LPR? I got a pic attached, it'll be nice if one of you could edit it in paint and point at it or something. The manual doesn't show it clearly and it looks like nothing on the marker x_X Thanks a lot...lol

***xPiZZeRx*** · January 2nd, 07:46 PM

The thing closest to your left thumb that isn't the barrel is what you adjust.

**mLuH** · January 2nd, 07:49 PM

yeah the LPR is the thing under the barrel that is sticking out, it should unscrew.

***ChrisTheDuckMan*** · January 2nd, 08:00 PM

I know what the LPR is, I'm talking about the spring cap. Thanks @ Pizzer, I figured so but the weird thing is..the psi didn't go down even when I fired but the velocity did. I figured it released air the more it's open or so. The manual shows it as something really tiny though...more like the silver thingy-ma-bob under the tape-worm. Meh..*bewildered*

***xPiZZeRx*** · January 2nd, 08:02 PM

The gauge shows the pressure coming out of the reg. So to adjust that pressure, the input pressure, you need to adjust the regulator, not the LPR.

When you adjust the LPR, the input will stay the same, which means the gauge will read the same since the gauge comes before the LPR. The LPR adjusts the pressure that goes directly to the solenoid, it's a whole different area then where the gauge is located.

**mLuH** · January 2nd, 08:03 PM

ohh i thought you were asking what the lpr is...lol..i have no idea what the spring cap is

***ChrisTheDuckMan*** · January 2nd, 08:50 PM

Man, the input pressure is preset to 800 psi >_> what do I do? can you point out what to adjust? I'm so lost

***xPiZZeRx*** · January 2nd, 09:02 PM

Chill, lol. Yes, the pressure of the tank is set to give out 800psi. It's a HP tank. The reg on the gun is able to take the pressure from the tank and lower it to a pressure more suitable for the marker. Don't worry. There should be a screw on the bottom of the regulator that you adjust the operating pressure with. It should read around 170psi. on the gauge.

***ChrisTheDuckMan*** · January 2nd, 09:09 PM

I've used the gun a few times before, the LPR gauge is 180 psi but with all my ups I'm pretty sure it can go a lot lower. The air system the tank is attached to isn't LP. The thing is, I have no clue how to turn the screw...do I use a pliers or something x_x

***xPiZZeRx*** · January 2nd, 09:13 PM

Did you ever occasionally look into learning about the Impulse before you bought one?

If the tank lets out 800psi. it is a HP tank. HP tanks are recommended to be used with Imps, LP tanks can also work.

I'm talking about the regulator on the marker, not the tank. You use an allen wrench. It's on the bottom of the regulator.

You do not have an LPR gauge. That gauge on the gun shows the input pressure, which should be 180psi. or less. What upgrades does your Imp have?

You do not need a gauge for the LPR, the pressure isn't neccessary to know. I'll get more into how you adjust the LPR later.

**bobide** · January 2nd, 09:15 PM

alright, your gauge shows the pressure from the hpr. To adjust the hpr there is a screw on the bottom. It will adjust the psi put out by the hpr. This plays a role on fps. The lpr has a cap on it that you should be able to adjust. Changing it will adjust the psi sent to the noid, i suggust not adjusting it. If it is to low the gun will not cock.

***ChrisTheDuckMan*** · January 2nd, 09:27 PM

Yes, I did research. Man..the cap you're talking about, Bob, is what I was refering to at first but Pizzer is saying it's something else (I think) x_X I'll upload a pic to help the situation. Thanks a lot by the way to all of you helping me so much, especially Pizzer.

Oh and my setup is:
.Gameface milling
.Vision eye
.blue led cricket board
.14" 2 piece All American barrel
.max-flo vertical LPR
.Tape-worm
.Brass hammer
.Delrin Bolt
.Twister Feed-Port
.Blade Trigger (Eclipse I believe)
.Smart Grips
.New smart parts micro air system (heh, I got it before it was on the market =D) with 68/4500 carbon fibre wrapped hp tank - preset 800psi.
.Ricochet Apache (attack loader) LCD Electronic Hopper.

***xPiZZeRx*** · January 2nd, 09:34 PM

What you tried adjusting is the LPR. That adjust velocity, doesn't change the pressure at all on the gauge.

And that max-flo vertical LPR is really just a max-flo vertical regulator, not an LPR. That's the thing that controls the pressure from the tank. It's the big grip in front of the trigger frame. On the very bottom of it is an allen head screw which you adjust the gun's pressure with (pressure on the gauge).

What you thought it was is just a PRV (pressure relief valve). If the marker is ever over-pressureized (220psi.+ on the gauge), then this little thing will try and save some parts of the marker by releasing some excess gas. The PRV doesn't adjust anything.

What you think I mean are 2 burst disks for the tank. They blow if the tank is filled too far over the limit it should be filled. They don't adjust anything.

***ChrisTheDuckMan*** · January 2nd, 09:41 PM

Ah, thanks man. What air efficiency you think with my setup I can run the marker with well? I won't be able to adjust amything myself til I borrow a chrono on sunday.

***xPiZZeRx*** · January 2nd, 09:48 PM

With the gun properly set-up, you could prbably get over 1,200 shots, but there's no telling how many exactly. The LPR and bolt would help with efficiency. If you want to improve efficiency more, get a New Designz RIP Valve.

If that wasn't what you were asking (lol, question needs to be rephrased), then you should probably leave the pressure of the gun at around 160psi. - 170psi.

***ChrisTheDuckMan*** · January 2nd, 10:45 PM

I heard someone ran an imp at 105psi effictively but I don't see what else I can put on this thing besides that valve you mentioned and possibly a WAS board ;x

***xPiZZeRx*** · January 2nd, 11:45 PM

Mine's at 110psi. I've seen 90psi. and shooting 280fps. consistently.

Well, a WAS board wouldn't help with the air settings. But with the valve, you could lower it to around 140psi. Plus with all of the other internal upgrades, it would be nice. To get the pressure really low, you'll need a LP core retesnion spring for your solenoid since Smart Parts puts HP springs in them for their Imps. With this spring (can only be used on an Imp with an LPR), you can lower the pressure greatly. But I wouldn't recommend it for you. An LPR is a nice piece that helps with a lot of things, and that's all you'll need.

**poppasmurf15** · January 3rd, 11:57 AM

I know I'm late on this thread but here goes.
The only thing I have to say is that the difference in air efficiency between 120 psi, and 180 psi - which is what I have run since the day I put my lpr on. It is only a couple hundred shots difference at the most. It really doesn't make that big of a difference. You really want to tune the marker to be as reliable as possible, and as easy on the paint as possible, ie. the ram forward pressure set by the lpr. Don't over tune your marker trying to get crazy low input pressures, cause you might just get shootdown problems and recocking problems. I tried it and just said nah it just wasn't worth the time to tune it down. I get 1300 balls out of a 68/4500 and that is just fine for me. And I never, ever have a problem with my impy. Love your gun though. Mine is stock body so not quite as pretty. Good buy though, that looks like an extremely sweet gun.