Spin Tech Entropy Muffler Technology|
SPIN TECH Performance
Yes, it's different than any muffler you've seen before! Traditional muffler designs attenuate sound
in two ways: friction and absorption. No cancellation ever takes place in a muffler unless it has
moving parts, i.e., electronic mufflers. Electronic mufflers are very expensive, complex, heavy,
and not designed for performance uses. There is a fourth method of sound attenuation we will
present here. it is based on the second law of Thermodynamics, or Entropy.
The Entropy of a system relates to organization of the system. Sound energy actually represents a
form of organized energy in the sense that the molecules of air or gas vibrate together in a unified
way (on a microscopic level these gas molecules move and bounce off one another like billiard
balls). Heat energy also is the vibration of molecules. Heat and sound energy are very much the
same except for one major difference, organization or Entropy. Heat is a completely randomized
molecular vibration, while a sound wave is an organized wave front of vibration.
Spin Tech mufflers utilize a patented spin sound trap to retain and quickly randomize vibration
wave front energy into heat energy. On a size, weight and effectiveness comparison, no other
type of muffler works as well. Friction mufflers have high back pressure and can still be loud.
Absorption mufflers (straight through types) can have very good flow, but are loud, and get
louder as they wear out. Spin Tech, spin sound trap Entropy mufflers, have flow rates
approaching the straight through absorption types, no packing to blow out, and the maximum
attenuation of any type muffler at high flow velocities.
Flow routing is based on advance fluid mechanics and fluids technology. Vortices are sustained
inside of the spin sound traps. Vent holes are placed in an area where the case wall and sound
trap form a Venturi. As gas flows over the vent holes the reduced pressure extracts gas out of
the trap. Incoming exhaust from the main exhaust flow stream refills the trap and maintains the
vortex motion that promotes the entropy conversion of sound to heat energy within the muffler.
As flow velocities and throttle settings increase the attenuation increases to amounts never
achieved by any other muffler of this size and weight.
Spin Tech mufflers are the most effective race and street muffler in the industry. As sound
limits become requirements in most forms of motorsports, Entropy mufflers from Spin Tech
are the most effective way to race friendly and not be penalized. Street mufflers have a great
performance sound that actually gets quieter as higher and higher exhaust velocities flow
through the muffler.
4768 Felspar Street
Riverside, CA 888-550-