Robj
Well-Known Member
I've been looking at new mufflers and it's very difficult to know how it will sound in the car. Smittysduster started another thread on mufflers and like he says all the websites seem to say something different and listening to a set of mufflers on youtube doesn't help me.
Idle is not too loud and sounds great and even listening to the car drive by at varying speeds, it's not too loud at all.
Where I have a problem is driving inside the car from about 40 mph to just over 50 in third gear. The resonance at that rpm range can be almost unbearable to the ears if you just cruise at that speed or are climbing a slight hill. Above 50 mph it mellows right down and you barely hear the exhaust at all. At 70 it's a beautiful purr in the background with normal conversation entirely possible.
318- Hooker headers- 2.5 pipes- narrow H pipe- 14" turbo mufflers- pipes up and over the axle with stock type turn-downs.
Some sites seem to indicate that a 3 chambered muffler would be the ticket and others seem to say a turbo should be fine. I'm not sure if I need longer turbo mufflers, chambered mufflers, resonators in the pipes up on either side of the gas tank or what.
Like I said the volume isn't the problem it's that resonance that gets in my head.
Idle is not too loud and sounds great and even listening to the car drive by at varying speeds, it's not too loud at all.
Where I have a problem is driving inside the car from about 40 mph to just over 50 in third gear. The resonance at that rpm range can be almost unbearable to the ears if you just cruise at that speed or are climbing a slight hill. Above 50 mph it mellows right down and you barely hear the exhaust at all. At 70 it's a beautiful purr in the background with normal conversation entirely possible.
318- Hooker headers- 2.5 pipes- narrow H pipe- 14" turbo mufflers- pipes up and over the axle with stock type turn-downs.
Some sites seem to indicate that a 3 chambered muffler would be the ticket and others seem to say a turbo should be fine. I'm not sure if I need longer turbo mufflers, chambered mufflers, resonators in the pipes up on either side of the gas tank or what.
Like I said the volume isn't the problem it's that resonance that gets in my head.