SLR ION Tinkering

Hey brainstrust,

Going to have a play around with an SLR ION to see what it can do and hopefully learn a few things.

Its already got a piston and flat piston head with good sized holes and the barrel has been changed from 7.3 to 7.5.

It has a full cylinder and barrel extension at the moment but that barrel extension will get removed and the barrel taken back down to the stock 280mm

Not looking to spend big bucks but in the spare parts tub I’ve got a T238 29k motor, an eshooter basic mosfet and a near new set of SHS 16:1 gears so the plan is to have a go at putting those parts in. I might have a go at radiusing the gearbox as well.

I’ll pickup up an 80% cylinder to replace the full cylinder. Anything else worth doing while I’m in there? Short stroking?

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16:1 and the 29k motor will be pretty nice performer and easy build.
The 80% cylinder will be a big plus to a 280mm barrel. Recommended.

I would say a M rated spring to suit your desired FPS will help, stock springs are a bit short even though they are stiff enough for 300fps give or take. I generally use m100s in most things, and short stroke to suit fps requirements, though removing 1 tooth may be needed depending on the piston and head used so the piston doesn’t bind and jam the gearbox before it releases.

I would recommend a nozzle, they are quite leaky. I have been trialling (and sending out to others to trial) the “LDT style” nozzles I sell, so far they have worked in cymas I have tried, with the side effect of oversized gels wont feed, which I would say is a benefit lol.

The 16:1 gears being used came out of a blaster that a shop repaired a while back, seems like two teeth have already been removed. Now 14 teeth total.

Anyway its shimmed ready for some new bits.

Nice, love it when the work has been done for you!
Neat job of the short stroking too.

Couldn’t get my hands on an 80% cylinder so its back together temporarily with the OG 70% cylinder, 16:1 gears and an M110 just because that’s what I had on hand.

Did a quick chrono check in the garage so I’ve no idea what the accuracy is like but I’m extremely happy with the initial results :slightly_smiling_face:

Needs a field test but I feel like that FPS and RPS is pretty spot on for where we play

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Nice results, well done! Hopefully accuracy is pretty decent, I often see decent accuracy in barrels 240-280mm, probably my favourite lengths to work with too!

Accuracy today was pretty darn decent with the slightly softer Summer Cat Milky’s, between that and the new rate of fire this blaster cleaned up today. Only real issue is the bloody tiny Cyma magazines, need to do something about that.

Have an 80% cylinder, new cylinder head and nozzle on the way to try out next.

Haven’t installed the eshooter basic mosfet, still outside my lane at the moment but I’ll have a crack once everything else is in and humming along.

Put an %80 cylinder in with a couple of bits received from AkGelblasterau

Nozzle

Cylinder head

Initial airseal tests were very good. Need to glue the nozzle on, should’ve done that beforehand

Checked the swept distance of the piston to the best of my knowledge and came out with a good VE ratio


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Bit of a weird result, FPS dropped from 320 down to 270 with the odd gel dribbling out of the barrel. Might go back and just replace one part at a time and see if I can narrow down the culprit.

What did you use to glue the Nozzle rubber on with? Just a thought :man_shrugging:

Roughed up the surfaces then used this stuff

The nozzle fell off without any resistance whatsoever :sweat_smile: So that glue is not fit for purpose, CA glue next.

On another note while taking it down I did notice some damage to the tappet plate, a very small piece had also some off.

That is where at some point the sector gear has gone backwards into the tappet.
You can press and or shave it flat, it should be fine. But does mean it is worth checking the anti reverse latch (if the anti reverse latch spring broke at some point this can happen)

Yep super glue or Gorilla glue polyurethane is a good one don’t need much.

But couple other problems there. You are in good hands above post. Pun fully intended. :joy:

Sure enough the ARL spring had become dislodged and wasn’t, er, springing

At a bit of a loss as to the cause of the FPS drop, I went back and returned the parts back to the original setup one by one, hoping to find the cause without any luck.

Put those bits back in but replaced the piston with a pink one and polymer piston head

80% Cylinder
LDT cylinder head
Polymer piston head
Pink piston
16:1 with two teeth off
275mm 7.5 barrel
T238 29k motor
M110

Landed with 23 RPS and 300 FPS, certainly getting in plenty of practice pulling down gearboxes :+1:

Fun, ain’t it? :blush:

I was about to say if you put the original nozzle back in or spaced out the new one with a small o ring your FPS would be back up there again. But you beat me to it. :smile:

Like Rok has said in his videos, trial and error until you find the best fit. :person_shrugging:

But it definitely sounded like a loss of airseal at the t piece. :thinking:

Nice work on that, BTW. :+1:

Break it, fix it, correct factory madechina qc shite, 9" grinder or hammer works for non blaster things but sure gets things sorted out quick smart. Whop, youre gettin it now .

Just don’t set yourself on fire like I did, 2c morning, hmm my nuts are warm now. And hold on correctly to a 9" you can work magic. Straight through rail lines.

Actually an apprentice at work after I told him not like that lock in, nekkminnute 9" angle grinder skidding through the shop sprained his wrist. :laughing: told ya so, you no listen off to hospital with you stat. :roll_eyes: :joy: :+1:

Lost his apprenticeship over that. He was useless anyway, would not listen.

You definitely have to have your headgear properly flushed out when you’re using a 9" grinder. :thinking:

Brilliantly effective in the right hands, lethal in the wrong ones. :smile:

I might try that anyway, I’m not %100 sure if I just swapped out the original nozzle, or the cylinder head and nozzle as one. Either way it’ll be a good experiment