Q:

Hit to the powerlimit

Hello guys,

I think I hit to the max power of my Talon at 29FPE. Is that possible?
Yesterday I installed new 75gram hammer with leather anti-slap mod and it seems to work nice but I think that the weight is too much for stock spring. OR the stock valve just can’t produce any more exhaust.

I played with Tophat and turned it way open. More than 3mm gap now. Powerwheel at max. No change in fps with tophat at 2mm or 3mm. Is there any way to quickly determine is it the spring or valve-bore that is limiting max power now? I know I could easily try to find new spring but would like to first try to pinpoint the lagging part if possible.

I don’t need much more power. Just about 10-15% for 35fpe to shoot my favourite pellet at 300m/s.

Thanks.

-Mike

General Chat

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Viewing 6 replies - 1 through 6 (of 6 total)

quote Shadoh:

Does one absorb less of the hammers energy than the other? Leather vs rubber?

Can’t say since with leather I have little heavier hammer but I would say that O-ring suspends more. One would need to make hammer which can hold both and test it out. I don’t think there is a big difference though.

Does one absorb less of the hammers energy than the other? Leather vs rubber? It might be possible to spread the impact over a larger area with the leather.

quote Shadoh:

Mike, if you ever have any intentions of making a new valve or buying one of the high performance valves available then you should do that first

You’re propably right. I haven’t done valve yet because I don’t have spare tank yet and don’t want to rip standard tank open. All the mods I have done so far are undoable and I would like to keep it that way. I have looked other tanks and think I found one. 800ccm 200bar with decent dimensions for 40รขโ€šยฌ and will purchase it any time soon.

quote Shadoh:

One big question though. How did the leather compare to the rubber O-ring you had in there in reducing hammer slap? Leather is something Ive suggested for a long time on this and other forums but I think you are the first one to try it out. Im really curious to hear your feedback.

Yeah. I even remember you said that and I thought otherwise ๐Ÿ™‚
Well. The rubber was propably ok but I initially thought it acted too much like a suspension taking the power away. Now with leather I think it was not the case afterall. I had just reached the powerlimit already.

The leather ring is bigger and with heavier hammer the impact velocity is less so there is less slap. Also the bigger hammer absorbs the sound better. I think there is not a big difference between leather or O-ring.
O-ring is easier to make precice and with good slot it is better secured and don’t need glue. I didn’t do any exact sound measurements but there is not a big difference and both definetelly works.

Didn’t see any effect about consistency either but that could be because the biggest accuracy factor is still behind the gun ๐Ÿ˜†

rabbits; I have now 29FPE and have heard that it’s about the limit of standard valve?

harry; I think my standard Talon has valve from older batch. Gonna make my own design soon. There is long winter coming and evenings starts to became dark already. So when there’s no time for shooting it’s time for even more modding ๐Ÿ™‚

Mike, if you ever have any intentions of making a new valve or buying one of the high performance valves available then you should do that first. Then tune the other parts, breech, hammer, springs to compliment that valve. Its the main reason I havent made a new hammer or breech on my gun yet.

One big question though. How did the leather compare to the rubber O-ring you had in there in reducing hammer slap? Leather is something Ive suggested for a long time on this and other forums but I think you are the first one to try it out. Im really curious to hear your feedback.

McM,

The new valve from AF is awesome. It works great in my .22. Read my post in General Chat, Air Force comes thru.

what valve do u have in it mate .. why not go for a condor valve ?and what power do u recon is comeing out off the gun?

Viewing 6 replies - 1 through 6 (of 6 total)

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