[Luxe4life]

Hey guys, getting a dm13 soon with about 5 cases thru it. Should I wait until its broken in to mess with the lpr? If so how many cases to break it in?
Thanks peeps

[grss429]

I'd shoot another 5 cases threw it, but if you want go ahead and tune it,

start with a dwell of 21, stock is 18

then for the LPR turn your LPR in/clockwise until you feel resistance. Air up the marker, and while pulling the trigger slowly increase the LPR (counter-clockwise) until the bolt is fully cycling. Then increase by 1/2 rotation more and chrono.

[sledneckforlife]

would those instructions apply to a dm12 also?? Are the settings diff. with the billy wang bolt.

[Luxe4life]

Originally Posted by grss429

I'd shoot another 5 cases threw it, but if you want go ahead and tune it,

start with a dwell of 21, stock is 18

then for the LPR turn your LPR in/clockwise until you feel resistance. Air up the marker, and while pulling the trigger slowly increase the LPR (counter-clockwise) until the bolt is fully cycling. Then increase by 1/2 rotation more and chrono.

I usually turn the lpr down like the first part, then I back out the lpr until it sucks out the bolt back, then one more half turn, then chrono and adjust.

[eyeownyu]

this method will work with all dm's regardless of what bolt is in there (except the tech t weird *** bolt)

[Luxe4life]

Originally Posted by eyeownyu

this method will work with all dm's regardless of what bolt is in there (except the tech t weird *** bolt)

His method or mine?

[speedy2k4]

If you just raise the LPR until it sucks the bolt back by itself you will likely end up with a higher LPR setting than is actually necessary, since the slowly increasing pressure has a hard time overcoming static friction.

I prefer to tune for the lowest LPR required to fully cycle and deal with bolt stick using ABS dwell functions.

[KrazieGuy]

In my experiences the bolt sucks back within about 1/4 of a turn out which is still way too low of a reliable LPR pressure. What are your approximate settings speedy? (LPR "turns"/dwell/abs). Im currently running 1,3/4 turns out, dwell @ 21, and abs @ +10ms. Seems to work fine, but im always looking for ways drop LPR pressure while keeping the gun consistant and reliable.

DM12/BW. Thanks.

[grss429]

Originally Posted by KrazieGuy

In my experiences the bolt sucks back within about 1/4 of a turn out which is still way too low of a reliable LPR pressure. What are your approximate settings speedy? (LPR "turns"/dwell/abs). Im currently running 1,3/4 turns out, dwell @ 21, and abs @ +10ms. Seems to work fine, but im always looking for ways drop LPR pressure while keeping the gun consistant and reliable.

DM12/BW. Thanks.

I was unaware of stock boards having a ABS setting, for adjusting but 1 3/4ths turns out is insanely low, you have to be getting drop offs.

what I like is

21 dwell and 3 turns on the LPR with a dm12 with BW bolt BUT like speedy said it's different every gun

[speedy2k4]

Originally Posted by KrazieGuy

What are your approximate settings speedy? (LPR "turns"/dwell/abs). Im currently running 1,3/4 turns out, dwell @ 21, and abs @ +10ms.

Those are pretty much my exact settings on my DM6 stock bolt right now. But don't get caught up on how many turns out, it can be inaccurate and misleading. Get the bolt fully cycling then give it another half turn and you should be good to go.

[Splatkid10]

If the LPR is too low you'll also experience inconsistent chrono readings.

[MikeHawk619]

If the lpr is too low, will it affect the bps? I had it at 1 1/2 turn out and chrono reading is pretty consistant, but it only shot 6-10 bps

[98Pro]

IT shouldn't affect BPS... But yes you can tune a gun straight out of the box. Tuning is just getting YOUR marker to its own optimal settings. IT doesn't mean your pressure won't be higher that the "stock" setting of 3 turns. You can't really go by turns because every LPR is different.

[eyeownyu]

Originally Posted by MikeHawk619

If the lpr is too low, will it affect the bps? I had it at 1 1/2 turn out and chrono reading is pretty consistant, but it only shot 6-10 bps

yes i can effect bps. just turn it out another 1/4 or 1/2 a turn and your bps should be back to normal. if it is not, its a board issue.

[battleXtar]

So actually the H3 reg not necessary need to be adjusted with only LPR & dwell tuning? so far no body is touching the H2 in line reg from the post...

[98Pro]

Originally Posted by eyeownyu

yes i can effect bps. just turn it out another 1/4 or 1/2 a turn and your bps should be back to normal. if it is not, its a board issue.

If its so slow its effecting your BPS it's prolly too low to cycle properly. If your dwell is at 21 (each way of the bolt travel) and your bolt is fully cycling you should have no problem hitting upwards of 20 BPS. This if you have BPS issues your gun isn't setup right to even be shooting properly

[eyeownyu]

Originally Posted by 98Pro

If its so slow its effecting your BPS it's prolly too low to cycle properly. If your dwell is at 21 (each way of the bolt travel) and your bolt is fully cycling you should have no problem hitting upwards of 20 BPS. This if you have BPS issues your gun isn't setup right to even be shooting properly

not true because it has happend to both my dm11 and dm12. i tried tuning it to super low lpr pressure, and it started shooting slow bps. all i did to fix it was raise the lpr a tad.

[rottensquad07]

Guys you also need to remember that some of these DM's had a different # of shims in the LPR than the manual or others markers do. Something I found out personally on my DM11. If I were to adjust the LPR to 3-4 turns out like the manual says that marker was loud, and not smooth at all. If I am down around 1.5-2 turns on the LPR it is butter.

[eyeownyu]

also the definition of "turned all the way in" is different depending on who you are talking to. some people count all the way in as turned until it physically wont turn anymore, and some people count until it starts to get harder to turn. the 2nd method is the way you should use, as the first can damage the brass knob's oring.

[TherealInsomniac]

Originally Posted by eyeownyu

not true because it has happend to both my dm11 and dm12. i tried tuning it to super low lpr pressure, and it started shooting slow bps. all i did to fix it was raise the lpr a tad.

So you're telling us that by adjusting a mechanical aspect of the gun, you were able to change an electronic one?

The bps is set by the board. Changing any pressure doesn't change what the board tells the solenoid to do.

[98Pro]

Exactly^^^. The only thing I can think of is the bolt couldn't fully come back full speed and even after the dwell cycle was up it was still moving but very slowly and was keeping balls from entering the breech. Which if that's the case your LPR is wayyyy too low.