Mawky

Very nice review. I'm kind of on the fence about picking one of these up. I recently finished my AEG build and was looking for something cheap to turn into an HPA platform. I've always had a soft spot for the HK416 but getting the VFC is simply too expensive if I'm going to gut the thing. At first I was looking at the Specna Arms sa-h02 but I can't find them anywhere and again the newer version, the sa-h20 is too much because of the Gate Aster. Long story short I'm only looking for good quality externals. Would you recommend the Double Bell HK style replicas and would it be worth it to upgrade the hopup chamber as well as the inner barrel (shorter version)? I kind of like the fact that the DB ones don't have 'trades' like the SA one so I can have them laser engraved locally.

The results are in and I'm very happy with them. With the current setup with the 12:1 gears (shortstroked 3 teeth), M120 prommy spring, Tienly 25K motor and the 11.1V 2000mAh 30-50c Lipo the Amp draw is just under 13A on full auto. Haven't really tested semi since the cycle is too short for the RC tester and the numbers on the Leviathan have proven unreliable anyway. Tinkering with it so much to test and retest shimming, motors etc. has also given me the opportunity to solve the feeding issue I was having on full auto with the Maxx Model ME Pro in conjuction with Maxx Model nozzle, a tru-hop bucking and ZCI innner barrel (270mm). A shorter 21mm nozzle, sanding the front of the tappet plate to bring the air seal back up and a round ICS gear delayer (one of the round ones that retracts the nozzle a bit further) proved to be the solution. @Sitting Duck, thanks for the tip regarding the round delayer (in another thread from someone else). All of this combined resulted in the following FPS figures. Not too bad me thinks and with this I guess my build is finally done apart from adjusting the hop and the red dot. Hopefully all of my testing proves usefull for people looking to get a Tienly or Leviathan. Thanks for all the help guys

Ok so I orderd myself one of those rc testers and it arrived today. After soldering on some deans connectors I checked the current draw from the Tienly outside of the gearbox and then once again in the same setup as seen in the picture above. The amp draw outside of the gearbox was around 2.85A. When installed in the gearbox and only with the gears to turn the amp draw was around 3.45A. Sadly I won't have any time to play around with it a bit more until Monday. So long story short, the current figures from the Leviathan are probably a fair bit out of whack and my shimming shouldn't be too bad (correct me if I'm wrong ) but I'm stil going to try to shim the bevel just a bit tighter as @Davegolf suggested. I'll report back with the current numbers once I have everything back inside the grearbox.

Update: I settled for the Tienly 25K since the webshop from which I was ordering some other bits didn't have an ASG or ZCI. After installing the Tienly and making sure the motor height was set correctly, I did a few test shots with mixed results. The fire rate went up to around 27RPS which is more or less what I was expecting from a 22TPA motor. However according to the Leviathan the current drawn on startup, semi and full auto were respectively 63A, 44A and 23A. Since this was still too high for my liking, I decided to dig into this a bit deeper. I opened up the gearbox and took out all of the compression parts which left the gears, shims, ARL, trigger and the mosfet. After installing the pistol grip I was left with this set up. Before testing both the SHS and the Tienly without any load from the spring I wanted to make sure the gears were definitely not binding. The videos below show the play the bevel has with the Tienly installed and how good or bad the gears can spin without the motor installed (ARL is in). The bevel free play was about the same for the SHS HT motor. Not easy to film all this without a stand so the quality isn't the best but hopefully it will do. Being happy with the shimming and motor height for both motors I went ahead to do a few 'test shots' with both. This gave the following results and currents. SHS HT Tienly 25K I'm not really sure what to make of all this. Are the numbers without any load from the spring at all plausible or is the Leviathan displaying incorrect currents? A part of me just wants to call it a day and be happy with the Tienly and the 27RPS (with spring installed) but the other part wants to get to the bottom of this. Maybe it's time to get myself one of those RC watt meters from hobby king.

Nice test. Ordered myself some to try as well. I'm not really happy with the silicon grease from Aim Top I bought last time. Feels more like Tec7 than anything else.

Well now you've done it, you made choosing a new motor even harder 🤣

I remember reading the ASG Ultimates don't have a bearing in the motor tower. How much of downside would you say this is when compared to others? Nope not in the UK, I have some family there though. I'm afraid new brushes will not solve the issue because the ones that are in there are brand new. You might want to check order 10024 from your store The best I can find right now for the Tienly 25K is around £60 which is up there but I'm definitely considering it. On the upside the gears I got from you are running like a charm. A definite upgrade over the BD ones I had.

Sadly I'm from Belgium so shipping it to the UK would run me around £13. So if I'd decide to have it tested it would kind of be a one way trip for the SHS simply because I'd like to know if and how bad it actually is. Still thinking about what to do with this one. Right now I'm looking at either the GP motors or the more expensive options like the Tienly and whether or not I should get an SHS pinion to match right from the start.

It took me a while to find out where I got the motor from but it turns out I bought it from skirmshop back in October of 2017. So it shouldn't be a bodged frankentorque or something probably just some bad luck. I really don't fancy trying a classic trigger because if I don't absolutely have to so a 22TPA motor it is. Any suggestions that would play nice with the SHS gears? I've been looking at the GP motors from ak2m4 since the pinion should be an SHS clone anyway. Any others besides the GP and ZCI. I don't mind spending quite a bit for a good motor but I don't know if something like a Tienly gt 25000 is worth the extra. Just for lols and giggles, any of you two interested in testing the SHS HT if I can get it shipped to you for a decent price?

Thanks for the video, very interesting apart from anything else. As far as my setup goes, I have indeed shortstroked 3 teeth and am running a 3/4 cylinder with a 270mm 6.02mm barrel (360FPS limit at my local fields). You could be right in thinking the reported current on the leviathan is a bit off because on full auto it reported a higher current than what my 100mAh battery should be able to supply. I think I read something similar about the Gate Titan somewhere but I can't remember where. The ROF control on the Leviathan was set at 100% so no holds barred there. I did however turn the AB completely off which apart from generating double shots on semi also increased the ROF with th SHS HT to around 26RPS. Setting the AB to 25% solved the double shots and retained the 26RPS. This still seems to be a bit low to me for a 16TPA motor, assuming that's what I got. Any ideas on how to proceed apart from actually getting another motor to test? If I were to go for a different motor to test (assuming the motor was indeed the culprit), should a 22TPA motor get me around the 30RPS mark? I don't want to go much higher than that.

Hi everybody, This is my first actual post here on the forum but I have been reading loads of topics ever since I started airsofting. I guess I never bumped into a problem big enough to tempt me to make an account I guess Anyway a few weeks ago I started tinkering with my AEG out of pure corona boredom. Since it's only a G&G CM16 SRL, I wanted to make a kind of sleeper gun so stock on the outside completely upgraded on the inside. The main goals were to get the RPS around 30 and the FPS nice and consistent around the 340 mark. During this process I've hit quite a few problems. The main problem for this topic was the rate of fire. I got an SHS high torque motor and a 13:1 gear set (which I had gotten long ago but never got around to trying out). When I first tested this set up with an 11.1V 1000mAh 20C lipo and an M120 spring (planned on short stroking the sector) I only got to around 23RPS and a current draw of 67A on semi and 33A on auto. I got the current draw from the Leviathan mosfet. At first I thought that was the kind of result I could expect from such a set up but I still ordered a 12:1 set from AK2M4 because I was hoping to get the noise level down (which I did ). Saddly this step down in ratio slowed the RPS down even further so I started to look into things a bit more using this forum. All of this lead me to believe I got the shimming wrong and the gears were binding so I started all over again and got the current draw a bit down but not enough IMO and the RPS remained the same. When I put the gearbox in the receiver without the spring, compression parts, ARL and motor, I could spin the gears freely for quite a few rotations. So binding gears were out. Next I checked whether or not my piston was binding but this also was not the case. I figured I might have had a dodgy lipo so I tried a different 11.1V 2000mAh 30-50C battery with the same outcome. The last thing I could think of was the SHS high torque motor that I got so I tried the stock black G&G 18K motor that I had laying around with interesting results. These are the numbers with the SHS high torque motor on the 11.1V 1000mAh 20C lipo. So earlier today I tried the G&G motor with the 11.1V 2000mAh 30-50C battery which generated the following results. After seeing this I'm tempted to think the SHS motor I got was a lemon which would explain everything. What do you huys think? If I'm right in thinking the SHS motor I got is bad, which motor would you guys advise for my setup. I'm still hoping to get around 30RPS with the 12:1 gears. I'm hesitant to try another SHS HT motor due to this but am I being stupid? Also if I get another brand, would it be worth switching out the pinion to an SHS one? Phew after this long first post I'd like to thank all of you in advance for your input