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05-28-2019, 01:56 PM | #1 |
Join Date: May 2019
Posts: 19
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True 250cc upgrade?
Does anyone know of a true 250cc cylinder head and jug that can be found?
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05-28-2019, 04:51 PM | #2 |
Join Date: Dec 2016
Location: Argentina
Posts: 756
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229 is the max that the CG can go. Remember that the CG was born as a 125cc.
What people do to get more juice out of the 229cc, they put a crf230 piston, they workout the carter to make it a bit bigger, custom cams, custom connecting rods, port and decked head, better mufflers, better carb. When fully customized they can reach quite decent speed (for this type of engine), also they can reach about 62 mph in about 8, 9 seconds, which may not be too fast if you are used to bigger CC motorcycle, but again it's just a 229cc |
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05-29-2019, 07:16 PM | #3 | |
Join Date: Jun 2016
Location: akwesasne, NY-13655
Posts: 2,220
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Quote:
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05-28-2019, 09:03 PM | #4 |
Join Date: May 2019
Posts: 19
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Thank you for the input wild dog, I might check out the 230 piston, my head is decked and exhaust has been evenly ported. I can run 65-70 on a good warm day comuting to and from work! Thought I'd just reach out there and see what I got back.
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05-29-2019, 11:17 AM | #5 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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There are bigger versions, but they're liquid cooled. They're commonly used in utility trikes in Asia and Mexico, with a tilting box over the rear axle. Jury is still out on the actual displacement, but it's likely between 250 and 270.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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05-29-2019, 11:21 AM | #6 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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Do we have a source for these custom cams?
__________________
"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
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05-29-2019, 01:51 PM | #7 | |
Join Date: Dec 2016
Location: Argentina
Posts: 756
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Quote:
If you don't mind making an order in South American, then yes you do. You have factory made either made in brazil o argentina. for OHC variants or custom made to the client taste. Connecting rods in differnt size for the CGs |
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05-29-2019, 02:11 PM | #9 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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Well isn't that cool!!!?? I'd love to cam the TT. Then it would really be worth the porting.
__________________
"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
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05-29-2019, 02:35 PM | #10 | |
Join Date: Dec 2016
Location: Argentina
Posts: 756
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Quote:
Those cams goes around 39 usd to 90 usd. |
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05-29-2019, 04:05 PM | #11 | |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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My difficulty is in trying to even order the stupid thing. Even with a translating program, the websites aren't setup to take international orders and sending e-mails is proving difficult. I almost wish they had a third party broker website like taobao to place an order through.
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Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 |
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05-29-2019, 08:01 PM | #12 | |
Join Date: Dec 2016
Location: Argentina
Posts: 756
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Quote:
Other than that they will mostly glad to sell your parts for the engine Try to contact the Mr Carvalho, WGK makes good products and they are quite popular. Plus those parts are quite cheap in USD. Last edited by Wild Dog; 05-29-2019 at 11:15 PM. |
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05-29-2019, 09:35 PM | #13 |
Join Date: Jun 2016
Location: Hell
Posts: 2,408
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My info says 125-200 CG cam and follower or at least followers are different to the 250.
Roller rockers for 125-200 are easy enough to get in China but NOTHING roller rockers for a 250. I could be wrong etc but everything I see point to it being different |
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05-29-2019, 10:10 PM | #14 | |
Join Date: Jun 2016
Location: akwesasne, NY-13655
Posts: 2,220
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05-29-2019, 11:06 PM | #15 | ||
Join Date: Dec 2016
Location: Argentina
Posts: 756
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Quote:
People from Brazil are quite prideful of their language and the average people doesn't care to learn any other language. In the rest of south america, we speak spanish, they don't even care about that... So in the end if you want to deal with them. Is much easier to learn to falar portugues. Then you have small companies, that make parts for small motorcycle, a market that's not really big in the US, so most of the stuff is for the internal market. What will happen if i send an e-mail to a mom and pop store in the US, asking them question in spanish? Most likely they won't know to write or speak spanish, so they won't be able to reply me. Quote:
Watch this, it's spanish but you can see what he does with the carter and what i mean |
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