|
Title: Exhaust Diameter Post by: hackers2r on January 06, 2010, 07:31:34 AM I am looking at having a custom exhaust made for my S2R 800 but have an important question. All the systems for my bike are 2-1-2. If I were going to do a 2-1 system, what would the optimal size for the pipe to be? My natural assumption is that since both header pipes are 45mm, the collector pipe should be 90mm. Am I correct? Close? Completely wrong? Thanks.
Title: Re: Exhaust Diameter Post by: Raux on January 06, 2010, 07:49:42 AM if something is to have the same flow suppose it would have to have the same cross sectional area... right?
Pipe Diameter # of Pipes Cross Sectional Area 45mm 2 3179.25mm2 60mm 1 2826.00mm2 62mm 1 3017.54mm2 63mm 1 3115.67mm2 63.63962mm 1 3179.25mm2 64mm 1 3215.36mm2 65mm 1 3316.63mm2 Not sure you'll find a 63.63962mm dia. pipe... but it would be the same cross section this is just a pure mathematical approach, i'm sure in practice it is much different. Title: Re: Exhaust Diameter Post by: hackers2r on January 06, 2010, 07:56:55 AM Well that solves that question, mathematically speaking of course. If anyone else has any insight, it would be greatly appreciated.
Title: Re: Exhaust Diameter Post by: hackers2r on January 06, 2010, 10:03:26 AM In addition, there was a link to a crossover pipe calculator posted on here once. Anyone have it or know the proper distance for this motor? Thanks.
Title: Re: Exhaust Diameter Post by: greenmonster on January 07, 2010, 04:02:24 PM Spaggetti systems, like SilMoto f e, has same diameter in crossection as rest of the tubing.
Title: Re: Exhaust Diameter Post by: hackers2r on January 14, 2010, 08:46:18 AM An additional question, does anyone have the inside diameter of the exhaust port on the S2R 800? Thank.
Title: Re: Exhaust Diameter Post by: Howley on January 15, 2010, 12:56:43 AM You do if you have an S2R 800 and a ruler.
|