DMR Buidling - Help Needed

metallicafatcat · Nov 18, 2011

SHS would be my personal choice for a piston and a Lonex piston head.

Cheese Man · Nov 19, 2011

And, seriously, you will need to do a lot less power stuff if you go with a good hop system. I would seriously recommend getting an er-hop installed barrel from HS5. I won't guarantee anything, but it did wonders for me.

simpa311 · Nov 19, 2011

I don get that ER-hop from HS5 . Can you explain please beacause really I dont Understand .

And here is the updated list,since I am not spending too much money on my first DMR !

A&K SR - 25 Full Metal

5KU Air Seal Nozzle for SR-25 series AEG - special for SR25 - /installed

SR25 Extensive Tappet Plate - special for SR25 - / installed

Element Hop Up Cushion for AEG - / installed

Lonex Hop Up Rubber (70 degrees) - / installed

Modify Spring - S150+ /installed

Motor - JG Replacement High Torque Long Axis Motor (18000 RPM)-M42 /installed

Spring Guide - Systema Area 1000 Spring Guide for Ver II Gearbox - 10.50$

Piston - SHS Full Steel 19 Teeth Piston for ARMY R85 Series - 10 $

Piston&Cylinder Head - Element Silent Head Set for Gearbox Ver.2 - 10$

Cylinder - stock /any suggestion will be great ! There is a special for SR25 / installed

Gear Set - SHS High Speed All Steel Gear Set for SR25 AEG
- 17.99$

ThightBarrel 509mm (6.04)- Madbull 6.03mm Black Python Ver.2 Tight Bore Barrel for AEG (509mm) - 39.99$

Shims - MAG Stainless Steel Precision Shim Set - 5$

Battery 9,6 V , 4200mAh , Dean Connector / installed

I will do the shimming and polishing in a few days with a stock cylinder. Any suggestion on cylinder will be great

Thx for help !

metallicafatcat · Nov 19, 2011

Don't use a silent head set.

simpa311 · Nov 19, 2011

Up there you said that I dont use Alluminium Piston head..
can you give me the exact piston and cylinder head which you will use on my place ? Please

metallicafatcat · Nov 20, 2011

Quite frankly, I use whatever is in the gun when I get it, and work with that, and if after I've done everything I can to fix it and it doesn't work, then I buy parts. I'm fond of the JG piston heads and TMs, but upgrades I like Gaurder.

Cheese Man · Nov 20, 2011

What don't you get about that? It is an alternate hopup system that has been shown to be extremely effective.

simpa311 · Nov 20, 2011

http://shop.ehobbyasia.com/shs-high-speed-gear-full-tune-up-set-for-sr-25-aeg-7-teeth-piston.html

Guys i got the thing with HS5 hop,I will make one on my own I searched the forum and fin some great ideas. I will do something. And now the question about this set. Can you check it and see if it OK with my SR25 . It doesn't cost too much and it's all I need. Except barrel of course. I will do sorbo pads from "mouse pad" Got that idia from "vindi" Thx !: ) I think I will manage good AOE with sorbo and this piston,because the stock piston has 19 teeth instead of 15 teeth that SHS provide. I am considering to buy this package and SHS 19 full stell teeth piston.

give advice ! Thanx

metallicafatcat · Nov 20, 2011

Just make sure the mouse pad is hard enough that it doesn't deform upon repeated piston cycles.

simpa311 · Nov 20, 2011

Oki metallica.. And what about that set I linked ? Is it ok ? I mean what you think :?

metallicafatcat · Nov 20, 2011

Just use the stock piston head instead of the one that comes with the kit, it'll weigh too much.

simpa311 · Nov 28, 2011

Ok guys. First of all thx everyone for help. And I decided among all advices from you guys and from guys over here in Croatia.

I bought "SHS Full Steel 19 Teeth Piston for ARMY R85 Series" and "Silent head set (piston&cilinder head) with some metal shims and greaves for good working of gearbox. I will use all other stock parts expect those which are already exchanged.

I will polish and shim as much I can. Fit the new piston ,make some sorbo pads (from mouse pad) and use 0.36g bbs. I will be done in a few days I hope so I will be posting the results.

My next upgrade will be the gears "SHS" and the "Madbull 509mm,6.04 " barrel. But that I will buy when I collect some more money. For now just this and I hope it will give good result with my knowledge and vindies tutorial of making a long range AEG.

Thx

metallicafatcat · Nov 28, 2011

You can't put sorbo on a silent head set.

simpa311 · Nov 29, 2011

Then no sorbo

nino94 · Nov 30, 2011

any external parts wanted? i have some magpul that would look good on there

metallicafatcat · Nov 30, 2011

If you don't have sorbo your going to quickly crack the front of your gearbox.

Cheese Man · Nov 30, 2011

I think what metallica is saying is, use a standard set, and use sorbo.

simpa311 · Nov 30, 2011

Aham....I got what you said....Hmm....Ok...I better listen to you if I dont want my gearbox cracked....pff

uller · Jan 5, 2012

Actually you can use silent PH's with sorbo.Pry the stock cylinderhead bumper off the silent cylinderhead.Its flat underneath just like a pom cylinderhead.Apply a piece of sorbo to the cylinderhead.Next,reapply the cylinderhead bumper on to the sorbo.The stock bumper gives the silent pistonhead a seat against the cylinderhead,and also protects the sorbo from the pistonhead.Sure you will loose that much more cylinder volume with the bumper added,but you loose cylinder volume any way applying sorbo,or doing AOE corrections that im aware of.

Dont use the SHS high speed gears in that setup unless you have a really huge battery to make your motor pull an SP150.For a spring like that I would go with CA Flat Super Torques gears for SR-25.The ratio isnt good for pulling heavy springs with the SHS gears you chose.CA Super Torques are rated to pull an M170 spring,so you should be ok.Being flat cut they will be easier for you to shim aswell.

Cheese Man · Jan 5, 2012

If you don't mind the cost, I have heard nothing but good things about RiotSC gears/gear sets...

DMR Buidling - Help Needed

metallicafatcat

Cheese Man

simpa311

metallicafatcat

simpa311

metallicafatcat

Cheese Man

simpa311

metallicafatcat

simpa311

metallicafatcat

simpa311

metallicafatcat

simpa311

nino94

metallicafatcat

Cheese Man

simpa311

uller

Cheese Man

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