Cothran valve If the Cothran valve will produce the same numbers with lighter hammer spring loadI'll continue pushing the limits of the Marauder. 250 transfer port. rsterne. So here are pics of the Cothran valve compared to a stock Disco valve, and the TP (thanks to member miksatx for the TP): rsterne: Nice. 090" only wastes air, without producing any additional Interested in this Cothran valve as well for a possible backup for testing to find the best of the best for power and shot count. The AirGun Guild General Category PCP, C02, and Helium Powered Airguns Cothran PowerHouse valve for the . 30 cal and it makes 100fpe. Bob I support Ukraine and their Belated Cothran Powerhouse Valve Select Gate READ GTA FORUM RULES BEFORE POSTING GTA Forum Help Desk GTA Announcement Gate Dealer Area GRIP AirgunWeb Airgun Videos Airgun Repository of Knowledge Vendors and Vendor Videos AirGun Expo 2021 Airgun Expo 2022 Contests and Giveaways!!! Cothran PowerHouse Valve and TP. Contact. 17 late '60's Crosman Powermaster 760 in the original box Print. Comes With mounting Screws. 30+ regulated shots; Turkish walnut stock; Three stage fully 3050 Co2 with Cothran valve. Cothran Machine Shop 1891 Slocum Rd It would appear that the Cothran valve can only open physically about 1/8", although I didn't confirm that by measurement on the valve itself. Revised Design for 2022 helps reduce valve stiction and tune-ability for a clean crisp shot. They are the first and most power balanced production valve. We are adding a cross directional carbon fiber sleeve to Cothran Machine Shop SS 2260 CO2 Tube PowerHouse Valve for 7/8” Tube with . The body is made of 360 brass with the internal parts are made of Stainless Steel. 300 lands. similar to their Disco PowerHouse Valve. Select Gate READ GTA FORUM RULES BEFORE POSTING GTA Forum Help Desk GTA Announcement Gate Dealer Area GRIP AirgunWeb Airgun Videos Airgun Repository of Knowledge AirGun Expo 2021 Airgun Expo 2022 Contests and Giveaways!!! The Cothran Powerhouse valve uses a 3/8" OD transfer port, so unless you do some fancy footwork, you will be faced with drilling out the tube and receiver to use that. I also know how much development went into it, and that’s why I bought your valve (I know it’ll get the job The valve is his balanced valve that he makes for the discovery. This site uses cookies. Share this product. 17 posts 1; 2; Next; Message. By doing nothing other than installing this valve and using the factory hammer spring, Shoehorning a Cothran Powerhouse valve into a pp800 . 17 late '60's Crosman Powermaster 760 in the original box. It is a copy of his Discovery Powerhouse valve that has been araound for several years. The spring was original to the valve. Part# Price $155. Shipping Notice. So that only 718 fps out of the Cothran valve and a 20 inch barrel with the 73 gr slug, is that as fast as you could get it up to or still in the preliminary tuning stages with the Interested in this Cothran valve as well for a possible backup for testing to find the best of the best for power and shot count. CURRENTLY EACH IS MADE TO ORDER SO PLEASE ALLOW 2-3 WEEK PROCESSING TIME. . Yup the new Cothran Marauder Powerhouse valve is just coming out. Made in USA. How big is the exhaust port in the valve?. 281 Transfer Port. Select Gate READ GTA FORUM RULES BEFORE POSTING GTA Forum Help Desk GTA Announcement Gate Dealer Area GRIP AirgunWeb Airgun Videos Airgun Repository of Knowledge Vendors and Vendor Videos AirGun Expo 2021 Airgun Expo 2022 Contests and Giveaways!!! I have used Cothran Machine Shop parts to build on several of my 22xx platforms, all the parts were of great quality and have performed well over the years. Dramatically increases power. Look forward to reading about the gun your building Disco Double Gets Cothran Valve, Air guns, Airgun Forum Get out your popcorn. Range: The Don Cothran air pistol has a respectable range of around 25-30 yards (23-27 meters), making it suitable for both close-quarters and medium-range shooting. We're also exploring the Air Force Condor platform too Why can't we just accept the status quo, I guess because we gotta try to build the impossibleright? Sorry Lloyd, my mistake, the 170ftlb chrony calls were with an 85gr slug. Don Cothran M-Rod Power House Valve Select Gate READ GTA FORUM RULES BEFORE POSTING GTA Forum Help Desk GTA Announcement Gate Dealer Area GRIP AirgunWeb Airgun Videos Airgun Repository of Knowledge Vendors and Vendor Videos AirGun Expo 2021 Airgun Expo 2022 Contests and Giveaways!!! Accuracy: The Don Cothran air pistol is renowned for its exceptional accuracy, thanks to its precision-machined barrel and valve system. the valve acts like a Cothran valve, either it cycles or it doesn't. Share. GTA Senior Contributor; Posts: 4114; yes; Real Name: Mike; Re: Cothran PowerHouse valve for the M-Rod! USA orders over $25. 17 Daisy 853. Airgun sales, service. I received the valve today. Michael Loar. However, the actual amount the valve opened certainly plateaued at that value, regardless of increasing preload. The unimpeded air flow allows power with ease. Orders sent not following these guidelines Will receive a refund back minus PayPal’s fees. Parts. 24 posts 1; 2; 3; Next; 3050 Co2 with Cothran valve 3050 Co2 with Cothran valve Taming of the shrew (Cothran valve) Select Gate READ GTA FORUM RULES BEFORE POSTING GTA Forum Help Desk GTA Announcement Gate Dealer Area GRIP AirgunWeb Airgun Videos Airgun Repository of Knowledge Vendors and Vendor Videos AirGun Expo 2021 Airgun Expo 2022 Contests and Giveaways!!! Cothran valves are definitely different animals. User actions. Using a 32" TJ liner in . Great for hunting bigger game and/or distance USA orders over $25. 00 call to get shipping cost. Share on Facebook; Share on Twitter; Share on WhatsApp; Share on Reddit; Share by Mail; Related. Cothran Machine Shop prides itself on custom top-notch products. Part# Price $120 NOW $110. It uses a . After being commissioned to make a left-handed version of the Crosman steel breech, he has gone on to make many I have a cothran valve in my flex . Mike . Glad we did. I bored the stem hole to . IIRC, I seem to recall it was pulled down over itself, top to bottom, like pulling down a sock from the top. With a shot count of 10, it’s easy to hit targets with ease. 22 1322 upgraded to 2289 . Tube was opened up at valve transfer area to accommodate the larger throat of the Cothran valve. Mike Don Cothran turned the above idea “inside out” with his aftermarket Powerhouse Valve. Disco Double Gets Cothran Valve The current power train is based off the new CH2021 Challenger with its’s new shortened valve, SSG hammer setup, and regulator. Hammer adjustment must be done when the plenum is at the maximum expected pressure. Check to enable permanent hiding of message bar and refuse all cookies if you do not opt in. 294 bore/. While tuneing the rifle I've noticed after increasing my hammer preload past 1/3rd of max yielded no more power. 25 F&T Regulated is Built exclusively at Airgun Revisions and is a true work of art. Scroll to top. Its a intro, field test and overview/thoughts on a new air pistol that I bought Disco Double Gets Cothran Valve. 22 cal STEEL BREECH WITH ORIGINAL REAR SITE MOUNT quantity. The poppet head is hollow and runs over a solid stem carrying the O-ring that seals the This is a in drop in valve. Where we ship & Order Minimum. If I would have made a spring I can assure you it would have been poorly designed. 99 Add to cart . Description The Powerhouse Valve fits the 22XX Series Airguns and Discovery Airguns. All your airgun needs, master airgunsmith, airgun tuning I have a Cothran 308 on the disco platform with his valve. Fits Gen1 and Gen2. This . Otherwise you will be prompted again when opening a new browser window or new a tab. This is our high efficiency valve for the Marauder/Armada. Author. Bob dcorvino: Very nice Joe. It would appear than any valve opening greater than 0. For everything modification and repair related post here. After seeing Lloyd's build, we opted to try our hand at a retractable bolt using a J-slot. Great for hunting bigger game and/or distance shooting. 25 Select Gate READ GTA FORUM RULES BEFORE POSTING GTA Forum Help Desk GTA Announcement Gate Dealer Area GRIP AirgunWeb Airgun Videos Airgun Repository of Knowledge Vendors and Vendor Videos AirGun Expo 2021 Airgun Expo 2022 Contests and Giveaways!!! Cothran PowerHouse Valve and TP. Don Cothran has been machining parts for years. 030 and put a 9 lb return spring in the valve. With an o ring in front of the valve it yielded a 4 shot string of about 15 fps spread. Hope to have the The Cothran valve is a balanced design, and will open with MUCH less hammer strike than an unbalanced design. 25 ARMADA HAMMER KIT $ 23. 250 valve is for larger calibers. The . By continuing to browse the site, you are agreeing to our use of cookies. Share with: Link: Copy link. 047" wire, with a spring rate of only 11 lb/in. With Cothran valve tuning Select Gate READ GTA FORUM RULES BEFORE POSTING GTA Forum Help Desk GTA Announcement Gate Dealer Area GRIP AirgunWeb Airgun Videos Airgun Repository of Knowledge Vendors and Vendor Videos AirGun Expo 2021 Airgun Expo 2022 Contests and Giveaways!!! Hawged out Disco valve, B&A valve, or a Cothran valve? Select Gate READ GTA FORUM RULES BEFORE POSTING GTA Forum Help Desk GTA Announcement Gate Dealer Area GRIP AirgunWeb Airgun Videos Airgun Repository of Knowledge Vendors and Vendor Videos AirGun Expo 2021 Airgun Expo 2022 Contests and Giveaways!!!. 25 Gen I MRod w/WAR valve/SSG & MM custom t-port @ 0. I took the SSG apart and installed the lightest spring I have of that size, made from only 0. (1/14) > >> Monkeydad1969: Got a new TP in for my Cothran PowerHouse vavle. NEW. 17 Webley Hurricane. As a machinist myself, I can appreciate the quality craftsmanship that went into the valve. They is no need to change hammers or springs to get more power. Regarding the uniqueness of a Cothran valve, I still So, the initial test was successful on every count but one. A comprehensive look if you will. Accept Decline Settings. Logged Oxford, Alabama; Benjamin Marauder 177 in Boyds blaster stock Benjamin Marauder25 Wicked Air rifles bottled Hatsan 22 AT 44S10 long FWB 124 177 Tuned FWB 300s Match L 177 Tuned FWB 300s Match Junior 177 Tuned cothran valve unreliable, Air guns, Airgun Forum. 25 Gen I MRod w/WAR valve & SSG (Cothran valve on deck). Increases transfer of air from tube to barrel without having to add a heavier spring. 17 (Cothran valve on deck). I would have no idea where to even start. Go Up Pages 1 2 3. There is something else going on, however, just like in the Cothran valve, so that once the valve cracks it tends to "blow open" because the force holding the poppet against the seat disappears, but it takes slightly longer for the balancing force to disappear as the pressure in the middle of the poppet rises from atmospheric to full pressure, through the small vent in the by Cothran Machine Shop. This is a long one. rsterne Posts: 9523 Joined: Sat Nov 03, 2007 9:19 pm Location: Coalmont BC. (He makes one for the marauder as well) As a bonus, this gun came with a custom stock, that upon research, appears to be a Michael Chavka stock, made on November 12 2012, and is either the first or one of the first thumbhole stocks that he made. Sounds like the hammer strike is marginal for the pressure. They use what Don calls a "Force Reduction System" Increases transfer of air from tube to barrel without having to add a heavier spring. Member 2000+fps Club; Bob and Lloyd; GTA Senior Contributor; Posts: 26960; GTA Forums Person of the Year 2017; Real Name: Bob; Re: Cothran PowerHouse valve for the M 7/8 Cothran valve question Select Gate READ GTA FORUM RULES BEFORE POSTING GTA Forum Help Desk GTA Announcement Gate Dealer Area GRIP AirgunWeb Airgun Videos Airgun Repository of Knowledge Vendors and Vendor Videos AirGun Expo 2021 Airgun Expo 2022 Contests and Giveaways!!! Cothran PowerHouse Valve and TP. We need 2 cookies to store this setting. Ultimately, your choices may depend on how many mods you are willing to accept, and if you can do them yourself, or have to pay to get them done for you. 00 shipped free. Orders less than $25. Add to cart. The velocity was essentially unchanged (a few fps less), and it still showed no signs of adjustability. New. USA orders over $25. dhqkwz ghso kpbjb ggnk avnm nkp pkzpjr jhln fqdtpnh fyohe