You wrote (I tested a red label gas spring in my TF99) have you tried a yellow in a tf 99.do you think it is OK just to Strong for the 99? can you tell the size me of the ram you ordered.sorry there is just so much I dont know. is there perhaps a really strong spring that would be better?I asking all this because I now have a 99. nice gun but my XL has just about ruined me.I really like power! I think the 99 can be up power some however I do want to learn to do this the right way.So any help you would or can give would greatly appreciated.-- I will pass it on
Quote from: codytwoeyes on March 30, 2012, 12:00:53 AMYou wrote (I tested a red label gas spring in my TF99) have you tried a yellow in a tf 99.do you think it is OK just to Strong for the 99? can you tell the size me of the ram you ordered.sorry there is just so much I dont know. is there perhaps a really strong spring that would be better?I asking all this because I now have a 99. nice gun but my XL has just about ruined me.I really like power! I think the 99 can be up power some however I do want to learn to do this the right way.So any help you would or can give would greatly appreciated.-- I will pass it on Yes I was wondering the same thing about my TF99P. It's really accurate already just want to gain a little more power for pushing 18g pellets. This is my primary hunting rifle, and I use it for mostly squirrel,rabbit,possums,coon, and g-hogs(TANKS).
No chrony but if I had to guess from reading others numbers I would say its shooting them 640-650fps
Hey brogreg....first off, welcome to the GTA forum and family. Check out some of these links: newbielink:http://www.gatewaytoairguns.org/GTA/index.php/topic,13374.0.html [nonactive] newbielink:http://www.gatewaytoairguns.org/GTA/index.php/topic,18220.0.html [nonactive]
ScotchmoI know this is an old thread. But if you can get back to this. I read this post and might have missed something. When looking at the N-forcer pdf the nitrogen springs are pressure adjustable. Have you tried to adjust the pressure. Also do you think air can pressurize the cylinder.
...these springs are a completely different animal than gas shocksto increase spring speed the valve can be drilled out about .5mmthe gas spring force is measured during filling not by the bottle pressure but by spring force as the tube is filled ...
I know that some manufacturers offer rebuilable gas springs than can be broken down and resealed. Perhaps he is dealing with something along those lines Scotchmo.Those can be broken down and messed with internally, though it seems to me a lot of extra hassle when you can instead get a spring with the desired rate already set. ...
Quote from: Paul68 on August 14, 2012, 02:45:58 PMI know that some manufacturers offer rebuilable gas springs than can be broken down and resealed. Perhaps he is dealing with something along those lines Scotchmo.Those can be broken down and messed with internally, though it seems to me a lot of extra hassle when you can instead get a spring with the desired rate already set. ...The N-Forcer gas springs can be broken down and resealed. They have no valving. There is nothing that can be drilled out to speed up the spring. The only adjustment is the pressure. I'm guessing that he is dealing with some kind of gas lift spring with a regulated rate of return. I guess you could get them to work by drilling out the valving so that they would be fast enough to work in an airgun. But if you stick with die springs, you don't have to.
brogreg,The N-Forcer has an oil packed area between the pressure seal and the shaft wiper. Some brands do not. The oil can be a problem when your trying to eliminate all combustion products from a spring gun. Small amounts can be drawn out when the spring extends and it will eventually migrate into the compression cylinder.The springs that you are describing may be different than what we are talking about.What is the brand? Do you have any specifications? What are those specs? Do you have any web page links to them?better late than never newbielink:http://www.geminigassprings.com/index.php?page=shop.product_details&flypage=flypage1.tpl&product_id=1734&category_id=113&option=com_virtuemart&Itemid=12 [nonactive]