Fx transfer port and prope mod.

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spyde82

spyde82

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Jul 9, 2019
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So i made some pin propes for my impact and dreamline to go with some dual transfer port, and it made a huge difference (well maybe not huge but it gave me some more fps)

i don`t have the number from original but i did the oval hole first and as you all know it give you a pretty good increase in fps.

the pin prope alone with oval TP gives about 10-15fps



on my impact .22 it was setup to shoot 25gr jsb KOs at 1000fps and when i mounted the dual tranfer port and pin prope it was shooting 1032 easy, i had to set the hammer spring wheel down to min and decrease the reg from 130 to 120 and still shooting 1000fps, so my guess is an increase of 45-50fps at least.

I will do some more testing and keep you guys updated



here you can see the pin propes for both impact and dreamline

1584355525_11900500845e6f58c5b54c73.00438589.jpeg
1584355527_20620400145e6f58c72cf501.98035190.jpeg
1584355528_3685734355e6f58c8bf6184.01620261.jpeg
1584355528_8790378605e6f58c8eda8a0.87415702.jpeg
1584355531_4497464805e6f58cbcc1199.01500308.jpeg

 
So i made some pin propes for my impact and dreamline to go with some dual transfer port, and it made a huge difference (well maybe not huge but it gave me some more fps)

i don`t have the number from original but i did the oval hole first and as you all know it give you a pretty good increase in fps.

the pin prope alone with oval TP gives about 10-15fps



on my impact .22 it was setup to shoot 25gr jsb KOs at 1000fps and when i mounted the dual tranfer port and pin prope it was shooting 1032 easy, i had to set the hammer spring wheel down to min and decrease the reg from 130 to 120 and still shooting 1000fps, so my guess is an increase of 45-50fps at least.

I will do some more testing and keep you guys updated



here you can see the pin propes for both impact and dreamline

1584355525_11900500845e6f58c5b54c73.00438589.jpeg
Click to expand...

Just catching up. One on left is as it comes from FX? One in middle is elongated mod? One on right is pin pusher version?

Can pin pusher version be purchased anywhere or are people fabbing these by hand?

Elongated pusher requires similar elongation to the port to have any gains? 
 
Upvote 0
So i made some pin propes for my impact and dreamline to go with some dual transfer port, and it made a huge difference (well maybe not huge but it gave me some more fps)

i don`t have the number from original but i did the oval hole first and as you all know it give you a pretty good increase in fps.

the pin prope alone with oval TP gives about 10-15fps



on my impact .22 it was setup to shoot 25gr jsb KOs at 1000fps and when i mounted the dual tranfer port and pin prope it was shooting 1032 easy, i had to set the hammer spring wheel down to min and decrease the reg from 130 to 120 and still shooting 1000fps, so my guess is an increase of 45-50fps at least.

I will do some more testing and keep you guys updated



here you can see the pin propes for both impact and dreamline

1584355525_11900500845e6f58c5b54c73.00438589.jpeg
Click to expand...

Just catching up. One on left is as it comes from FX? One in middle is elongated mod? One on right is pin pusher version?

Can pin pusher version be purchased anywhere or are people fabbing these by hand?

Elongated pusher requires similar elongation to the port to have any gains?
Click to expand...

Yes the one on the left is the original one, the one in the middle is the elongated one and on the right is the pin prope.

when you do the elongated you have to do both the prope and the TP in the barrel and it will give you a good amount of increase in fps, but you have to be careful of the size, if you go to big the pellets will drop into the hole.





i have tryed with different slugs and pellets and i havent had any problems




 
Upvote 0
Just got two of the Huma dual transfer ports today and some other items. Is it the original transfer port that gives you problem with pellet loading when you elongate it more than enlarging the probe. Trying to get my head around the issue. It seems to me getting the probe to match the transfer port word not cause problem when loading when using the Huma dual transfer port. Bill
 
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Yes i make the prope myself.



it was the elogated that gave problems with pellets dropping into the hole with some of the small pellets and slugs

this dual port from huma works perfect but i did opened it up some more so now it is 7X7mm but with the pin prope it even better.



the point of the pin is 1,5mm and i added 1-1,5mm to the length to compensate for the skirt on the pellet.



it works really well i was shooting my dreamline last night with some hades and it had zero problems.



another thing i noticed was with the original prope it is smaller then the brass inlet so with the pin you will have much better airflow

1584427837_9521584795e70733d449f33.22549350.jpeg
1584427838_4290593475e70733ea99869.45031861.jpeg

 
Upvote 0
This is my attempt. Not tested yet. (No time and no possibility......:( )

Looks like it is a lot bigger than the HUMA variant. (square 7.2mm) I've milled it with a 2mm end mill.

Would have thought that the .22 HUMA port should have been bigger, my oval port has got more surface area than the stock dual HUMA port.

I agree with Spyde82 that increasing the TP size is the easiest and cheapest way to gain power :)

1584469008_5288666235e711410ac2069.55134551.jpg

 
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