mully95
Living Legend
Ran across this in another forum:
Auto Exhaust Science
I have not read it all word for word but will. Talks on automotive engines rather than motorcycle engines but both do relate to one another.
I like the part found in "Header Primary Pipe Diameters"
" In practice though it is better, especially for a street-driven machine, to have pipes a little too small rather than a little too big. If the pipes are too large a fair chunk of torque can be lost without actually gaining much in the way of top-end power."
Now to me my bike doesn't have aftermarket cams, head work, pistons... so I don't think I need a 2" primary piped header. So my Viking exhaust 1 5/8" header should work perfect for my engine. Another words if I installed a 2" header on my bike I will most likely be upset... and my leg would be on fire...lol
Auto Exhaust Science
I have not read it all word for word but will. Talks on automotive engines rather than motorcycle engines but both do relate to one another.
I like the part found in "Header Primary Pipe Diameters"
" In practice though it is better, especially for a street-driven machine, to have pipes a little too small rather than a little too big. If the pipes are too large a fair chunk of torque can be lost without actually gaining much in the way of top-end power."
Now to me my bike doesn't have aftermarket cams, head work, pistons... so I don't think I need a 2" primary piped header. So my Viking exhaust 1 5/8" header should work perfect for my engine. Another words if I installed a 2" header on my bike I will most likely be upset... and my leg would be on fire...lol