04-19-2019, 05:07 AM | #16 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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Apologies, Hancadam, for the above post in your thread. If you so desire you can have it deleted by an admin and I wouldn't mind. It just had to be said.
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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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04-19-2019, 08:46 AM | #17 |
Join Date: Nov 2007
Location: Tennessee
Posts: 201
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No apology needed, none of the discussion bothers me.
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04-19-2019, 10:31 AM | #18 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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Back to our regularly scheduled program...
Hancadam, since I have this freakish need to make brackets out of scrap, I ended up mounting it like this on Mrs. 2LZ TT250. I thought it turned out cool and I also fulfilled my bracket fetish. ;-) My main concern was to have the muffler spaced out enough as to not cook the license plate plastic holder...which has been done here prior.
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"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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04-19-2019, 11:50 AM | #19 |
Join Date: Sep 2018
Posts: 173
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Does wrapping up to the muffler help with preventing oxidation?
Also too bad nobody has a motorcycle dyno.. I wouldn't be surprised if it actually reduced HP or torque without very specific valve and jet setup.. |
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04-19-2019, 12:56 PM | #20 | |
Join Date: Apr 2017
Location: miramar beach fl
Posts: 112
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Quote:
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04-19-2019, 01:37 PM | #21 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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From my own experience, once you sort out the jetting after adding an exhaust, the mid range and top end power do definitely improve. A majority of that is thanks to the lack of the catalyst in the head pipe, which is ridiculously restrictive.
Further proof would be in the gain of about 5mph with no other changes to the bike being made besides jetting. Mikuni clone properly jetted on a stock bike would do 62-63mph vs. 67-68 after the exhaust and re-jet. Same 17/45 sprockets as it had before, no other changes made. Simply slapping on the exhaust otherwise wouldn't likely gain much of anything as the bike gets lean pretty quickly.
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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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04-19-2019, 01:59 PM | #22 |
Join Date: Nov 2007
Location: Tennessee
Posts: 201
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04-19-2019, 02:21 PM | #23 | |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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Quote:
"Theoretically", wrap makes the exhaust gasses travel faster but with the huge displacement, fire-breathing, untamed horsepower of the mighty CG motor, I'm sure we're just a mod away from 11 second quarters. ;-)
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"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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04-19-2019, 03:23 PM | #24 | |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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Quote:
Here's an old member who dyno'd his Roketa DB07a. (CG200 motor) http://www.chinariders.net/showthrea...highlight=dyno
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"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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04-19-2019, 04:04 PM | #25 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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I will always wrap my exhaust at least from the rear slip joint to right before it makes the bend back to the head. Outside of the practical reason of no leg searing, it helps cut down on radiant heat to the carb and engine a bit as well.
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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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04-19-2019, 05:43 PM | #26 | |
Join Date: Apr 2017
Location: miramar beach fl
Posts: 112
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Quote:
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04-19-2019, 06:17 PM | #27 |
Join Date: Nov 2007
Location: Tennessee
Posts: 201
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04-19-2019, 08:28 PM | #28 | |
Join Date: Dec 2018
Posts: 59
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Quote:
My exhaust on my Magician is real mellow at idle and not to bad at 3000-4000rpm, but boy when you get on the gas man is it loud. One of my Harley owner friend took my bike for a ride and when he got back his first words were " man this is loud" and we all know how most Harleys sound. |
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04-19-2019, 08:31 PM | #29 |
Join Date: Nov 2007
Location: Tennessee
Posts: 201
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For me, it's right at almost too loud. But what makes me happy with it is how good it sounds. It sounds like a bigger engine.
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04-19-2019, 08:52 PM | #30 |
Join Date: Dec 2018
Posts: 59
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Thats just how I feel with my exhaust sound. Mine also sounds like a bigger engine. I would say maybe a mini Harley lol.
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