Recent content by Avidrob

All sorted, thanks @edosan. :)

poop I'm so sorry, I thought edosan was you know who. Well I feel like such a idiot. Anyway I now have his email, I'm sure it will get sorted. No offence intended, I still love u too.

Hi Edosan, I have a problem with you valve seats you sent with your HP hit. The bore is not central to the OD, (0.2mm out) and the end of valve stem won't sit flush with valve body. Its like the valve want sit back far enough. It was also very very tight fit on the o ring, I damaged 4 orings...

Hi Sports shooters. I'm moving back to UK so looking to sell my lovely Impact. FX impact ST .22 Sub 12 Black. Separate complete FAC upgrade parts Kit, .25 700mm STX barrel kit Huma Reg Wika gauges, (+spare fx oem gauges) Ernest Rowe Power Kit ( 6.5mm Valve seat, c3, hammer weight) Full...

*If you send the striking ball always at the same speed ( this is your hammer spring which has fixed energy potential ) you would see less motion of the struck ball with less weight and greater motion with more weight. This is the bit i dont get. The velocity of the striking ball (hammer) is...

But this is not the same, A car pushed with the same energy to propel the bike at 15mph would only propel the car at maybe 0.2mph. The kinetic energy is the same. As they both use the same engine (hammer spring) (forgetting about friction coefficients for the sake of simplicity) Thats why...

Can somebody help square me this circle please. Can somebody please explain why increasing hammer weight would aid its ability to open the valve at higher pressure. Surely the energy stored in the cocked hammer spring in constant, so the only difference between a light or heavy hammer is that...

Thanks Panisd Mine is a mk1, with a few upgrades including 6mm VS and wika guages, so im know the reg readings are pretty accurate. Re settings believe me when i say, i have tried EVERYTHING possible (as covered in another thread), I have hit the ceiling of max velocity at all my tested reg...

Do i need a Hammer weight, for pressures between 130-165b. is there any benefit, or is the 19.5 gram stock hammer the best? I feel i have quite a lot of Hammer spring tension, so did wonder if a liitle more weight and little less tension would be better? Iv just ordered Mikes plenum tube...

Keep i mind this has now had multiple mods, including Huma reg, 6mm valve seat, 5 gramm hammer weight, ported inlet and probe and delrin c3. Other than a larger valve tube/plenumn this really seem like as far as i can go with it. 

Totally agree with what you thinking, i think the same but my riffle disagrees, hence why im here for expert advice. Something is wrong somewhere. Even maxing out the HST sees no gain over what iv posted b4, these are the maximum velocities for any given reg pressure, and the hst has been...

HST at 140 was 18mm HST at 165 was 17.5 mm so the tension at 165 is higher. My method to find hst is to wind it up tight with the power wheel set on max then turn the wheel down until shots just begin to slow. This might be #1 or #2. if it is #2, i will set the wheel to # 3 then then measure...

Install 1 disk the other is a spare. Mark the anyside you like, just remember which one so if you rebuild the reg you can put it back together with the bedded in faces the right way round Have fun

Heres the results of a 60 shot string from 250-140b

So just dropped reg to 140 New settings 140b VS wide open HST 18mm 877fps 140b VS 8.2mm HST 18mm 866 FPS. Close enough. Result. :) No to see i i can repeat the great SD and ES i had on the last tune at 165b In fingers crossed the poppet/valve seat doesnt go sour now its at 6mm