Quote:
An harmonic(a): What's that from?!!!
Yep. Been watching MASH reruns too often!
CJ
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| Better mileage - 2 1/4 pipe or 2 1/2? https://slantsix.org/forum/viewtopic.php?t=24691 |
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| Author: | Rug_Trucker [ Sun Sep 02, 2007 11:29 am ] |
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I have round glass pack looking turbo mufflers on my slant. Seamless and the exhaust guy said they last a long time. They drone between 55-70 mph with an H pipe. 70+? quiet! X pipes require lots of dyno and AFR etc testing. H pipes just get it as far forward as possible. H pipe cut the noise some. |
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| Author: | Sam Powell [ Sun Sep 02, 2007 12:23 pm ] |
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Sandy, I suspect your rear pipe is just enough shorter than the '67 and up A bodies to have a different resonant frequency. That plus maybe the over dirve tranny puts you at a lower RPM at cruise. Maybe even the tune on your engine has something to do with that. I discovered that the leaner mixture at cruise made less noise. And, timing effected the exhaust note as well. Sam |
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| Author: | sandy in BC [ Sun Sep 02, 2007 1:22 pm ] |
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....I think its the larger muffler. |
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| Author: | SlantSixDan [ Sun Sep 02, 2007 1:58 pm ] |
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Quote: I always wanted to do a 6 cylinder version of the Formula S chambered pipes with resonator.
Which chambered pipes? The Formula-S cars got ordinary exhaust systems with ordinary reverse-flow mufflers...and a resonator in the tailpipe with a racy-lookin' big square angle-cut outlet end. I think Ford experimented with chambered pipes for a couple years.
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| Author: | Rug_Trucker [ Sun Sep 02, 2007 4:23 pm ] |
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Quote: Quote: I always wanted to do a 6 cylinder version of the Formula S chambered pipes with resonator.
Which chambered pipes? The Formula-S cars got ordinary exhaust systems with ordinary reverse-flow mufflers...and a resonator in the tailpipe with a racy-lookin' big square angle-cut outlet end. I think Ford experimented with chambered pipes for a couple years.IIRC 302 Z-28's could be bought with headers in the trunk, and chambered pipes. '69 or so? |
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| Author: | ceej [ Sun Sep 02, 2007 8:47 pm ] |
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Quote: An harmonic(a): What's that from?!!!
Yep. Been watching MASH reruns too often! CJ |
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