Exhaust sound

[Don Gale]

So how is it a 356 (912) exhaust sounds pleasing, wereas a very similar Subaru flat 4, especially WRX, sounds like it's missing on 1 or 2 cylinders? . . . discuss.

[Jay Darlington]

the firing order is different
Porsche 356 -1-4-3-2
wrx- 1-3-4-2
the WRX fires no. 1 on the left front then no. 3 left rear then to the other side. the 356 gos from one side to the other
Jay D.

[Ron LaDow]

Dunno; I think it has to do with the muffler.
There's a Subi which regularly parks in front of my shop for lunch, and I swear it's a beetle every time it leaves. And T-1 VWs share the 616 firing order.

[Don Gale]

Dunno; I think it has to do with the muffler. . .

Ditto, must be the combustion chamber design, exhaust plumbing, and muffler, and the Subie's much larger displacement. Firing orders end up being the same VW-356-912-Subie:



. . . too much time on my hands . . .

Edit:

In the case of Subaru WRX, it has to do with unequal length headers:

https://youtu.be/SUiyNud1FX0

[Jay Darlington]

Don, your right. I thought it was do to different strokes and firing order. that's what a friend of mine told me that has one, but he probably heard it from someone else.
Jay D.

[William Block]

Is number 3 cylinder closer to the flywheel than number 1 on a Subaru s it is on a 616 motor?

[Don Gale]

Is number 3 cylinder closer to the flywheel than number 1 on a Subaru s it is on a 616 motor?

It's opposite. Subie Cyl. 3 is further from the flywheel than Subie Cyl. 4. Subie Cyl. 1 is at the front-right of the car.

[Jim Nelson]

I could be seriously mistaken, but I think that the Dansk mufflers sound different than the Liesritz.....