GatewayToAirGuns.org    Donation

Air gun Entertainment and reviews > Hajimoto Productions

Hajimoto ???

(1/3) > >>

scion19801:
Can you or anyone give me the spec on the Poppet outer diameter from the ST kit? I have mine all installed and forgot to measure it. Found a neat spread sheet calc and it needs poppet diameter. Thanks

Hajimoto:

--- Quote from: scion19801 on March 22, 2020, 12:23:05 PM ---Can you or anyone give me the spec on the Poppet outer diameter from the ST kit? I have mine all installed and forgot to measure it. Found a neat spread sheet calc and it needs poppet diameter. Thanks

--- End quote ---


The poppet has a step and has a large OD of 0.338" and the smaller dimension is 0.197".
The height of the larger OD is 0.310" and the height of the smaller OD is 0.118"


Hope this helps
Haj

scion19801:
thanks haj. you rock man. gauntlet is coming along nicely. seems a bit odd that i have to crank my stk in 8+ turns from flush out to get to 888 fps. I know ports need to be opened up. i did do the barrel to 11/64". It there a better or aftermarket valve system that would fit, so i dont have to worry about messing up a hard to get factory unit?

Hajimoto:

--- Quote from: scion19801 on March 22, 2020, 01:56:09 PM ---thanks haj. you rock man. gauntlet is coming along nicely. seems a bit odd that i have to crank my stk in 8+ turns from flush out to get to 888 fps. I know ports need to be opened up. i did do the barrel to 11/64". It there a better or aftermarket valve system that would fit, so i dont have to worry about messing up a hard to get factory unit?

--- End quote ---
Don't get caught up in the "amount of turns" game.  All that matters is that you gain more FPS than stock and more shots. The turns in per Gauntlet are always different. I have tuned 100's of Gauntlets and no two are the same. I produce a chart like what is below for every one I tune. There really is nothing you can do to destroy the stock valve unless you do something rookie.




Hajimoto

scion19801:
ok. so you count turns in 180 degree increments. i was counting in full turns. i know i started off flush put on one turn checking each shot over my prochrono and stopped once i saw speed no longer increase, backed off one turn and used 1/4 turns to bring back up to my target speed.

this is my first time modifying an airgun, but im very technical and detailed. been an automotive tech for 20 years to i know my way around tools of all manner.

Navigation

[0] Message Index

[#] Next page

Go to full version
Powered by SMFPacks Media Embedder
Powered by SMFPacks Alerts Pro Mod
Powered by SMFPacks Ads Manager Mod