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Simon Jordan
Joined: 22 Dec 2009
Posts: 15
Location: United Kingdom (Great Britain), not usa,
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 Posted: Fri Jul 22, 2011 4:20 am Post subject: biland jetting with a non standard exhaust |
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Hi,
Will it be necessary to change the carb jetting, if i run a motorcycle style micron exhaust??
The exhaust i guess will be more free flowing than the standard can,
i would guess it may benefit from going bigger on the main jet, maybe to a 94 or 96??
Anyone got any opinion??
Thanks
Simon |
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John Matthews
Joined: 04 Dec 2004
Posts: 1986
Location: United States, Michigan, Williamsburg
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| Posted: Fri Jul 22, 2011 5:42 am Post subject: |
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Watch your temps, jetting can change from day to day or even throughout the day. The only way to know what your motor wants is to tune under the actual conditions you're running with. But yes, I would have bigger jets at the ready, too lean = $$$$.
Good luck,
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John Matthews
Heartbeat Power, LLC. |
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al nunley
Joined: 13 Nov 2006
Posts: 3030
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| Posted: Fri Jul 22, 2011 8:17 am Post subject: Re: biland jetting with a non standard exhaust |
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| Simon Jordan wrote: | Hi,
The exhaust i guess will be more free flowing than the standard can,
i would guess it may benefit from going bigger on the main jet, maybe to a 94 or 96??
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If we're going to be guessing, my guess is no change at all. Track testing may prove me, or you, wrong, but that's where I would start.
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If the data does not support the theory, get a new theory. (Al Nunley)
All else being equal; Compression is the Holy Grail.
45 years, in and around karting |
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