HEY GRUMPYVETTE
Just as a point of discussion...
Given the same length of pipe in the system, is an exhaust system louder when the muffler is closer to the header or closer to the tailpipe outlet? OR, doesn't it make any difference?
think it thru, the further the exhaust pulse from the exhaust port in the cylinder head needs to travel, and the larger the internal volume of the pipe its traveling thru, the more it disipates its energy in and the less sound energy the mufflers internal baffles need to disipate, Length AND internal volume dissapate pulse velocity and energy but adding an (X) as close to the collectors as possiable will tend to both split the pulse volume and almost double the internal exhaust path voluum, there by disipating energy faster still and allowing the pulse strength to be reduced a bit more effectively.
viewtopic.php?f=79&t=497
OK ILL try this way,
SORRY IT THAT WAS NOT CLEARLY STATED, we ALL screw things up on occasion.(I SURE DO!)
IDEALLY youll place the mufflers as far away from the engine as you can and install an (X) as close to the header collectors as space permits, and if your really concerned you can install these
http://www.spiralturbobaffles.com/
http://www.spiralturbobaffles.com/images/IMG_9889.JPG
or weld up your own versions
inside the pipes after the (X) and before the mufflers interance to further disrupt sound waves, but read the linked info and the muffler test, but selecting the correct mufflers not the cheapest or the chrome ones that look best goes a long ways toward getting the sound reduction under control! :biggrin:
viewtopic.php?f=56&t=495
Just as a point of discussion...
Given the same length of pipe in the system, is an exhaust system louder when the muffler is closer to the header or closer to the tailpipe outlet? OR, doesn't it make any difference?
think it thru, the further the exhaust pulse from the exhaust port in the cylinder head needs to travel, and the larger the internal volume of the pipe its traveling thru, the more it disipates its energy in and the less sound energy the mufflers internal baffles need to disipate, Length AND internal volume dissapate pulse velocity and energy but adding an (X) as close to the collectors as possiable will tend to both split the pulse volume and almost double the internal exhaust path voluum, there by disipating energy faster still and allowing the pulse strength to be reduced a bit more effectively.
viewtopic.php?f=79&t=497
OK ILL try this way,
SORRY IT THAT WAS NOT CLEARLY STATED, we ALL screw things up on occasion.(I SURE DO!)
IDEALLY youll place the mufflers as far away from the engine as you can and install an (X) as close to the header collectors as space permits, and if your really concerned you can install these
http://www.spiralturbobaffles.com/
http://www.spiralturbobaffles.com/images/IMG_9889.JPG
or weld up your own versions
inside the pipes after the (X) and before the mufflers interance to further disrupt sound waves, but read the linked info and the muffler test, but selecting the correct mufflers not the cheapest or the chrome ones that look best goes a long ways toward getting the sound reduction under control! :biggrin:
viewtopic.php?f=56&t=495