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v8 firing order

6K views 1 reply 2 participants last post by  Aussiblue 
#1 ·
Am I correct in assuming that the firing order is a contributing factor into making a v8 quieter?

for example, a stock 5l windsor is actualy loud from the exhaust when running on 6 cylinders. As soon as you enable 7 then 8, it gets quieter and then silent.

Is this firing order some how making the pressure from one cylinders exhaust gas cancel the noise of another?

Or am i completly wrong?
 
#2 ·
No; well not in a reasonably well designed system with seperate headers. The exhaust system is usually actually designed to prevent the exhaust flow of one cylinder interfering with the exhaust flow of another. Properly tuned exhausts create a vacuum that helps draw exhaust gas out of the cylinders.
 
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