Muffler Testing, etc.
We have the sound levels outside but did not attempt inside due to the engine being on the stand. I have found that the results translate very well between engines, in other words even though it is only a 5500 rpm Pontiac, we used to record sounds for the CD we made, the fact that it was 462 cu. in. and around 9.5:1 compression gives pretty col sound quality and type comparisons.
Yep, the wagon runs hard enough that we can tell which mufflers really work and which ones work "okay".
I have learned that sound quality is a personal preference and many like the sound from mufflers or systems that may not run as well as others. Others do not like the dead silence we strive for.
The shots show my 2.5" VOE mufflers under my car and another set on a 70-71 GTO.
It is all fun,I love mufflers and muffler experiments no matter what type they may be!
Tom