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muddog
Dodge Dakota
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1/08/2007
18:01:06
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 Subject: Doug Thorley Tri-Y Headers
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99 5.2 4X4
CC AUTO
Should I go with the short or the standard length Tri-Y header? Not wanting to do any moving of sheet metal, but a custom Y pipe is ok. Either way I will be going with the Ceramic Coated.
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BMan
Dodge Dakota
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1/10/2007
12:03:05
|  RE: Doug Thorley Tri-Y Headers
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I'd go with the longer ones. They'd make more torque!
Where did you find them?
BMan
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N56629
Dodge Dakota
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1/10/2007
13:28:47
| RE: Doug Thorley Tri-Y Headers
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Typing "Doug Thorley Tri-Y Headers" into any search engine is a great way to find them.
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Josh
Dodge Dakota
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1/10/2007
14:38:02
| RE: Doug Thorley Tri-Y Headers
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The long headers make more torque if your runnin staight pipes.If your planning on running a muffler the longs will get no more then the shorties.http://www.sandersonheaders.com/tech_get_technical.php
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N56629
Dodge Dakota
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1/10/2007
15:09:58
| RE: Doug Thorley Tri-Y Headers
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I don't think the article says that. It is referring to "equal length tubes."
"Exhaust headers with equal length tubes have been shown to develop slightly more power in an open system, but not when hooked up to a street system with mufflers."
I would disagree with that as being absolute fact. I know a guy that has been making headers since the 60's and they certainly perform better than shorties, with or without mufflers.
Equal length tubes take advantage of exhaust pulses to get maximum scavenging effect. This is something shorties rarely take into consideration. I see no reason that high performance mufflers would have any effect on that principle. Stock mufflers maybe a different story, due to some backpressure, but I doubt it.
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