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Re: dynomax 17747 ?
[Re: Dave440]
#1655073
08/04/14 07:55 PM
08/04/14 07:55 PM
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Joined: Jan 2003
Posts: 9,436 Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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Quote:
YW John... Overlooking something right in front of you? I've never done that!!
62Maxwagon...i've always wondered something about turbo mufflers. Wouldn't Offset/Offset flow better than Center/Offset? Maybe this would be better for a separate post and an opinion poll LOL... but it just seems logical looking at the cutaways of the tube layout, flow directors (if any) and internal perforated tube.
On a b-body you have to run then side inlet,center outlet,asked that question a long time ago and Walker says there is no difference.
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Re: dynomax 17747 ?
[Re: 62maxwgn]
#1655074
08/04/14 08:01 PM
08/04/14 08:01 PM
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Joined: Jun 2005
Posts: 2,507 Royersford, PA
bschargerse
master
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master
Joined: Jun 2005
Posts: 2,507
Royersford, PA
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I had these mufflers on my '66 Newport 383 with the factory log manifolds and a full 2.25" system. No crossover pipe. There was a slight drone to it at cruising speed, but not too bad. It seemed as the muffler got older the less noticeable the drone.
Brian - 1971 Dodge Challenger "The Dodge, which was practically stock, just left the Mustang like you wouldn't believe."
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Re: dynomax 17747 ?
[Re: 62maxwgn]
#1655076
08/04/14 09:23 PM
08/04/14 09:23 PM
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Joined: Jan 2003
Posts: 1,100 Fort Lauderdale
Dave440
super stock
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super stock
Joined: Jan 2003
Posts: 1,100
Fort Lauderdale
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"Walker says there is no difference."
Maybe negligible to them but there has to be a difference of some sort. I ran sonic turbo's for years offset/center and had no problem but always wondered about the flow.
I used the Dynomax offset x2 cutaway here and added exhaust (red/blue) to illustrate how it flows nicely with an offset setup and dual flow directors. I modified the cutaway to make a center/offset version which they don't show on their site. The exhaust has to dance around the chamber with the center tube before finding a way out (illustrated in blue). Center/offset obviously works and if the exhaust system can only acomodate that type of muffler then that's what we're stuck with...but I have seem some mopes with custom exhaust running offset x2. Be interesting to see a dyno showing the difference. Maybe worth a few horsepower?
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