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Blasterparts 8kg - Retaliator Hard Range Kit

 
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Blasterparts 8kg - Retaliator Hard Range Kit
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Boff
The Dealer


Joined: 08 Dec 2012
Posts: 3411
Fav. Blaster: (Modified) Stampede ECS
Location: Bristol, UK



Post Blasterparts 8kg - Retaliator Hard Range Kit  Reply with quote
My data can be found here. I picked up a hard range kit out of curiosity after OZNN and the OMW spring were found to be rated at 7kg and 5+kg respectively to see if there was any actual difference in the performance in this 8kg kit.

Average: 107
SD: 14.82

Compare that to the 107FPS OldNoob pulled out of the OMW Stage 1 kit, you're essentially paying a few Euros extra to get their plunger tube guide thingy and a catch plate spring that has a lower rating than the OMW one.

Any ideas? I'm guessing we're at the limit the Elite plunger volume can achieve before we start playing with the forward section and air seals.

EDIT: Removed 209FPS error, thanks for pointing that out, TopDart25

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Boff: Managing Director, Blastersmiths UK & BUZAN Founder (formerly)
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Last edited by Boff on Tue Jun 23, 2015 8:56 pm; edited 1 time in total
Tue Jun 23, 2015 8:04 am View user's profile Send private message Visit poster's website
UKNerfWar
Site Owner


Joined: 08 Feb 2012
Posts: 2443
Fav. Blaster: Swarmfire
Location: London



Post Reply with quote
I've noticed this too.

I'd really like to see aftermarket spring suppliers release details of exactly how they calculate their spring load. There are several methods out there, most of which are irrelevant to our needs.

Perhaps we could gather all the springs we have collected as a community and measure them all. We could then see potential energy opposite FPS data and hope something useful comes out of it.

I'd be quite happy to dust off my spring gauge for science.

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[quote="OldNoob:38837"]Remember if a mod guide has no performance test figures to back it up, look for a better one![/quote]
Tue Jun 23, 2015 8:59 am View user's profile Send private message Visit poster's website
Boff
The Dealer


Joined: 08 Dec 2012
Posts: 3411
Fav. Blaster: (Modified) Stampede ECS
Location: Bristol, UK



Post Reply with quote
Grab your spring gauge, do you have a set of our 5+kg springs around? I can send you this 8kg spring, too. I've still got OldNoob's OZNN 7kg here that I need to return to him.

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Boff: Managing Director, Blastersmiths UK & BUZAN Founder (formerly)
| Blog: nerfarmourer.tumblr.com | Website: www.blastersmiths.co.uk | Legal: http://pastebin.com/6sQ7c3jg |
Tue Jun 23, 2015 9:10 am View user's profile Send private message Visit poster's website
UKNerfWar
Site Owner


Joined: 08 Feb 2012
Posts: 2443
Fav. Blaster: Swarmfire
Location: London



Post Reply with quote
FOR SCIENCE!

The only spring I don't have is an OZNN one. If you send me that I will start gathering data at the weekend.

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Check out my YouTube Channel.

Visit the UK Nerf blog.

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[quote="OldNoob:38837"]Remember if a mod guide has no performance test figures to back it up, look for a better one![/quote]
Tue Jun 23, 2015 9:15 am View user's profile Send private message Visit poster's website
OldNoob
Foam Data Collector


Joined: 07 May 2013
Posts: 4886
Fav. Blaster: Xtreme 180 Rapidstrike
Location: In the Boonies



Post Reply with quote
Feel free to send my OZNN spring to Kev. Neil tells me 7kg is the real load, so it will interesting to see what happens when it's measured.

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Big_Poppa_Nerf wrote:

Boff whats the damage? I have spent over 3 times my Nerf budget this month already. Part of me is trying to be a responsible parent/husband/house owner. The other half is just says 'Ahhhh, Screw it!'.
Tue Jun 23, 2015 10:04 am View user's profile Send private message Send e-mail
Seiryuu
Nerf Addict


Joined: 05 Apr 2013
Posts: 788
Fav. Blaster: Wildfire AS-20
Location: Leeds, W. Yorks., England



Post Reply with quote
Let me know if you want rid of the spring when you're done. I'm not sure what I did but my retaliator gets the craziest pop sound when firing, suggesting there's an amazing seal within. I'd like to see if it can get more out of the spring.
Tue Jun 23, 2015 11:51 am View user's profile Send private message
Boff
The Dealer


Joined: 08 Dec 2012
Posts: 3411
Fav. Blaster: (Modified) Stampede ECS
Location: Bristol, UK



Post Reply with quote
Seiryuu, what are you currently running in there? OMW 7kg? I might be happy to part with this 8kg BP spring once I'm done with it in my EAT. Chronograph tests to come.

UKNW, so you've got an OMW 5kg, BP 8kg and evenutally an OZNN 7kg. Do you have an OMW 7kg? I couldn't get hold of a Black Tactical 8kg because their website wouldn't ship to the UK and I wasn't that fussed about getting springs that I bothered with tech support.

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Boff: Managing Director, Blastersmiths UK & BUZAN Founder (formerly)
| Blog: nerfarmourer.tumblr.com | Website: www.blastersmiths.co.uk | Legal: http://pastebin.com/6sQ7c3jg |
Tue Jun 23, 2015 5:42 pm View user's profile Send private message Visit poster's website
OldNoob
Foam Data Collector


Joined: 07 May 2013
Posts: 4886
Fav. Blaster: Xtreme 180 Rapidstrike
Location: In the Boonies



Post Reply with quote
Just to further confuse you all I have the EAT hard range BP kit and spring, which will finish my EAT kit data.

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Big_Poppa_Nerf wrote:

Boff whats the damage? I have spent over 3 times my Nerf budget this month already. Part of me is trying to be a responsible parent/husband/house owner. The other half is just says 'Ahhhh, Screw it!'.
Tue Jun 23, 2015 8:07 pm View user's profile Send private message Send e-mail
TopDart25
Junior Member


Joined: 24 Mar 2015
Posts: 40
Fav. Blaster: Rapidstrike / Stryfe
Location: United States



Post Reply with quote
On line 18 is the 209 fps reading an error?
Otherwise the fps is fairly consistent other than the 85 fps on line 54.
Tue Jun 23, 2015 8:13 pm View user's profile Send private message
Boff
The Dealer


Joined: 08 Dec 2012
Posts: 3411
Fav. Blaster: (Modified) Stampede ECS
Location: Bristol, UK



Post Reply with quote
The 85FPS is an actual result, the 205 was indeed a typo, I've edited the results accordingly, thanks. I keep the hard copy of all test records on pieces of paper or in my Ballistic Chronograph so if people want to see those, I can scan and send. Smile

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Boff: Managing Director, Blastersmiths UK & BUZAN Founder (formerly)
| Blog: nerfarmourer.tumblr.com | Website: www.blastersmiths.co.uk | Legal: http://pastebin.com/6sQ7c3jg |
Tue Jun 23, 2015 8:57 pm View user's profile Send private message Visit poster's website
SSGT
Nerf Addict


Joined: 12 Jan 2013
Posts: 1284
Fav. Blaster: 'Rave-N' CS-18, Elite Alpha Trooper (EAT) CS-12
Location: Durham



Post Reply with quote
UKNerfWar wrote:
I'd really like to see aftermarket spring suppliers release details of exactly how they calculate their spring load. There are several methods out there, most of which are irrelevant to our needs.


This is the problem. We don't know the amount of compression the manufacturers used to achieve their ratings. A spring measured to "7kg" at full compression may only apply 5kgf/49N if the blaster itself doesn't fully compress it and equally a "5kg" spring may apply 7kgf/69N at full compression if the measurement was taken at the compressed length it would experience whilst in a blaster. Measuring all springs at full compression isn't necessarily the most useful method for comparison between springs either as certain springs may compress to almost full compression during priming whereas others, depending on wire gauge and free length, may not. In-situ max spring load figures would be better (although it'd vary between blasters) but I'd find good old free-length and stiffness figures would be the most useful (and can be used across blasters if you measure the length of the piston stroke for the blaster you want to use).

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Tue Jun 23, 2015 11:21 pm View user's profile Send private message
Seiryuu
Nerf Addict


Joined: 05 Apr 2013
Posts: 788
Fav. Blaster: Wildfire AS-20
Location: Leeds, W. Yorks., England



Post Reply with quote
Boff wrote:
Seiryuu, what are you currently running in there? OMW 7kg? I might be happy to part with this 8kg BP spring once I'm done with it in my EAT. Chronograph tests to come.


That is what I am running currently, yes, though it has also been trialed with the stock spring and a 5kg rated one I believe I purchased from you. I feel as though the 7kg is getting slightly greater performance but can't 100% confirm it and I don't think it's nearly as big a difference as the upgrade from stock was. All three get the comical yet awe inspiring pop noise, just in differing volumes.


Wed Jun 24, 2015 1:52 am View user's profile Send private message
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