piston

bjrs a tous, qui d entre vous a essaye ce fameux piston sans ressort, ou le commander et a quel prix?le gains de patate est il flagrant?s addapte il sur une cfx sans problemes ?merci d avance...

http://www.airgunbuyer.com/Showproducts.asp?cat=Theoben%20Gas%20Rams&SubCat=Theoben%20Gas%20Rams

J'ai la HW90 qui fonctionne ainsi, fais une recherche beaucoup de post sur elle.

Pas d'adaptation pour CFX mais il en existe un pour la Gamo Hunter

Gain de patate pas flagrant sur un webley patriot qui passe du ressort au Gas ram : il y a un gain de précision mais une petite perte de puissance de l'ordre de 1 ou 2 joules...

oky,je te remerci!vais ouvrir ma cfx car il me semble que j ai une perte de puissance!

Si Pascal, il existe un système concurrent à celui proposé par Theoben (mais pas pour la Gamo CFX), de marque Air Venturi : http://www.pyramydair.com/cgi-bin/accessory.pl?accessory_id=2103

et voila...

Je n'ai pas dit l'inverse, ce post ne m'avait pas échappé très cher...

https://www.forum-airguns.com/entretien-reparations-customisations-bricolages-astuces-f31/possesseurs-de-diana-qui-se-lance-t19121.htm



Javais bien regardé les rubriques...
Mais comme il n'y avait rien pour la cfx...

mouais....

mouarf'

ayè, je l ai ouverte,ouf, pas d event dans la cale a l interieur du ressort, lui meme en bon etat, 26cm detendu; joint du piston ok, j ai rajoute une cale qui me compresse un peut plus le ressort, resultat garanti,sa pousse plus ,mais encore pas asse a mon gout: vais cogiter un autre systeme merci a plus...

https://www.forum-airguns.com/les-questions-de-debutants-f47/concernant-le-bridage-de-la-gamo-cfx-t18566.htm

https://www.forum-airguns.com/les-questions-de-debutants-f47/sos-augmenter-la-puissance-de-la-cfx-t12990.htm

juste au cas il existe la conversion gas ram genre theoben pour la cfx j'avais ouvert un post il y a quelques temps a ce sujet...

dispo sur pyramidair

http://forum-airguns.com/les-carabines-a-air-comprime-piston-ressort-f1/connaissez-vous-la-modification-d-air-venturi-sur-les-gamo-cfx-ou-whisper-t17635.htm?highlight=theoben+gamo

Bonjour à tous,

Est ce que ce système est disponible ailleurs que sur Pyramidair?

Merci d'avance...

question à 2 plombs: et justement pourquoi pas pyramidair???????

Sinon n'est 'il pas mieux de se s'orienter vers un autre modèle qui est déjà plus puissant à l'origine, changer un piston ressort par un gas ram faut oser et si cela apporte que du bon alors pourquoi pas.
Je ne pense pas que beaucoup de monde ont tenter l'opération? sa mérite peut-être un sondage non?

il suffit de lire les review et de regarder la video qui parle d'elle meme, quand a gain apporte par le gas ram.

pour etre franc quand je vais changer la piece qui fait vibrer le piston ( cf post : http://forum-airguns.com/entretien-reparations-customisations-bricolages-astuces-f31/pour-ceux-qui-ont-des-bruit-de-vibration-sur-leur-gamo-j-ai-trouver-le-soucis-t19120.htm#228401 )

je risque de changer le piston par le systeme gas ram...

donc les reviews:

Citation :

By Christopher from USA Things I liked:No more torque, twang, buzz. TIghter groups. Hold sensativity isn't as critical. Consistent power. Easy installation in a Big Cat/Shadow or any Gamo power plant. Things I would have changed:INCLUDE AT LEAST MINIMUM INSTALLATION INSTRUCTIONS OR A COUPLE OF PHOTOS!!! That's unacceptable this day and age, people. Shame on you Air Venturi and Pyramyd. Nothing but a warrantee card and declaration of non-responsibility was in my box. Found what I needed on the net, but it would have been nice to see one simple photograph that would confirm proper orientation, etc. This is OLD technology. Nothing unique here except for the plastic boot on the butt end - overpriced. Bring the price down to what gas springs are. What others should know:I'm no airgun snob who would insist his gun fire the same in winter and summer temps. The bbs' are full of them bashing gas spring technology and would have you believe that a mere few degrees will have you shooting completely off target. NOT TRUE! Sure you will see very subtile changes in velocity (and accuracy) as temps change. Just hold over 1/8" on really cold days. It will take a large temp difference before you will notice an accuracy difference -- on the order of 40 degrees or more. And then the performance difference is very very small - a non-issue in my opinion. This mod keeps me picking up and shooting my gun for hours a day. Comfortable, fun, lessened hold sensativity, raised my accuracy, and power has increased and become much more consistent. My gun would only launch 1 out of 10 PBA's supersonic. Now, every shot goes supersonic. Groups have tightened up considerably. I'd have never thought my WallyWorld Gamo could shoot 1/2" 5 shot groups at 20 yards. Occassionaly, a little better. That's what consistent power, and non-hold sensitivity will do for ya-- and that's what this gas spring does. For those that are really into tweeking, tuning, modification, experimentation and have the tools to do so. Go to an autoparts store with your gun measurements and buy 3 or 4 gas springs for the cost of this thing. Then enjoy the fun of experimentation, SAFELY! -------------------------------------------------------------------------------- By Dead On Shooter from USA Things I liked:This is the best upgrade you can buy for your rifle!!!!! It eliminates that annoying twang and thud from the spring. It makes the gun much smoother shooting. Things I would have changed:Not a thing !!!! What others should know:This upgrade will change your gun from a alright gun to Sweet shooting rifle. The effort to cock the gun will increase but worth every pound of it. I believe the velocity of my gun increased as well. If you haven't installed a GRT III trigger, do that also..

ainsi que la petite video qui vas bien...

http://www.pyramydair.com/video/?video=agr-episode-3.flv

loki a écrit:

il suffit de lire les review et de regarder la video qui parle d'elle meme, quand a gain apporte par le gas ram.

pour etre franc quand je vais changer la piece qui fait vibrer le piston ( cf post : http://forum-airguns.com/entretien-reparations-customisations-bricolages-astuces-f31/pour-ceux-qui-ont-des-bruit-de-vibration-sur-leur-gamo-j-ai-trouver-le-soucis-t19120.htm#228401 )

je risque de changer le piston par le systeme gas ram...

donc les reviews:

Citation :

By Christopher from USA Things I liked:No more torque, twang, buzz. TIghter groups. Hold sensativity isn't as critical. Consistent power. Easy installation in a Big Cat/Shadow or any Gamo power plant. Things I would have changed:INCLUDE AT LEAST MINIMUM INSTALLATION INSTRUCTIONS OR A COUPLE OF PHOTOS!!! That's unacceptable this day and age, people. Shame on you Air Venturi and Pyramyd. Nothing but a warrantee card and declaration of non-responsibility was in my box. Found what I needed on the net, but it would have been nice to see one simple photograph that would confirm proper orientation, etc. This is OLD technology. Nothing unique here except for the plastic boot on the butt end - overpriced. Bring the price down to what gas springs are. What others should know:I'm no airgun snob who would insist his gun fire the same in winter and summer temps. The bbs' are full of them bashing gas spring technology and would have you believe that a mere few degrees will have you shooting completely off target. NOT TRUE! Sure you will see very subtile changes in velocity (and accuracy) as temps change. Just hold over 1/8" on really cold days. It will take a large temp difference before you will notice an accuracy difference -- on the order of 40 degrees or more. And then the performance difference is very very small - a non-issue in my opinion. This mod keeps me picking up and shooting my gun for hours a day. Comfortable, fun, lessened hold sensativity, raised my accuracy, and power has increased and become much more consistent. My gun would only launch 1 out of 10 PBA's supersonic. Now, every shot goes supersonic. Groups have tightened up considerably. I'd have never thought my WallyWorld Gamo could shoot 1/2" 5 shot groups at 20 yards. Occassionaly, a little better. That's what consistent power, and non-hold sensitivity will do for ya-- and that's what this gas spring does. For those that are really into tweeking, tuning, modification, experimentation and have the tools to do so. Go to an autoparts store with your gun measurements and buy 3 or 4 gas springs for the cost of this thing. Then enjoy the fun of experimentation, SAFELY! -------------------------------------------------------------------------------- By Dead On Shooter from USA Things I liked:This is the best upgrade you can buy for your rifle!!!!! It eliminates that annoying twang and thud from the spring. It makes the gun much smoother shooting. Things I would have changed:Not a thing !!!! What others should know:This upgrade will change your gun from a alright gun to Sweet shooting rifle. The effort to cock the gun will increase but worth every pound of it. I believe the velocity of my gun increased as well. If you haven't installed a GRT III trigger, do that also..

ainsi que la petite video qui vas bien...

[url=http://www.pyramydair.com/video/?video=agr-episode-3.flv

http://www.pyramydair.com/video/?video=agr-episode-3.flv[/quote[/url]]

+1... La pièce a été modifiée, mais je vais aussi me diriger vers le gas ram histoire d'avoir plus de précision.
D'ou ma question: Est ce que ce système est disponible ailleurs que sur Pyramidair?

pas a ma connaissance

mais tu peux y aller c'est un site tres serieux

Ok, merci.