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Re: X pipe and mufflers. What do you run? [Re: JohnRR] #1589856 03/12/14 04:58 PM 03/12/14 04:58 PM
Joined: Jan 2003 Posts: 4,664 Newfoundland M mopar_man master
mopar_man master M Joined: Jan 2003 Posts: 4,664 Newfoundland	Quote: Quote: Quote: I saw that before somewhere Isn't your brother responsible for that abortion of a pipe ? Im probably shouldn't waste my fingers typing a response , but its easy for the ignorant to use derogatory terms to make fun of something . John , put the "O" pipe on a dyno up against any and all of the others that are out there and then come and belittle it .

Re: X pipe and mufflers. What do you run? [Re: Kern Dog] #1589857 03/12/14 06:10 PM 03/12/14 06:10 PM
Joined: Jan 2003 Posts: 8,398 Highland, MI. Sunroofcuda master
Sunroofcuda master Joined: Jan 2003 Posts: 8,398 Highland, MI.	So I have to axe you guys - WHY do you run X-pipes? No Man With A Good Car Needs To Be Justified

Re: X pipe and mufflers. What do you run? [Re: Sunroofcuda] #1589858 03/12/14 06:28 PM 03/12/14 06:28 PM
Joined: Jun 2004 Posts: 3,385 St. Charles, MO wingman Uncreative Title
wingman Uncreative Title Joined: Jun 2004 Posts: 3,385 St. Charles, MO	Quote: So I have to axe you guys - WHY do you run X-pipes? With an H-pipe my setup droned like crazy--drove me nuts. On a suggestion I switched out the H-pipe with the universal Summit X-pipe and kept everything else the same--drone gone. 1969 Dodge Coronet Super Bee 383 A4 1970 Plymouth Road Runner 440 FC7 (sold)

Re: X pipe and mufflers. What do you run? [Re: mopar_man] #1589859 03/12/14 08:58 PM 03/12/14 08:58 PM
Joined: Feb 2005 Posts: 4,316 Prospect, PA BSB67 master
BSB67 master Joined: Feb 2005 Posts: 4,316 Prospect, PA	Quote: ..... even I didn't believe like exhaust gases flowing forward rather than towards the tail pipes before entering a cat or muffler. That was taught and proven in shop class, 1974. Last edited by BSB67; 03/12/14 08:59 PM.

Re: X pipe and mufflers. What do you run? [Re: BSB67] #1589860 03/12/14 09:07 PM 03/12/14 09:07 PM
Joined: Jan 2003 Posts: 4,664 Newfoundland M mopar_man master
mopar_man master M Joined: Jan 2003 Posts: 4,664 Newfoundland	Must have been a well kept secret as not many people knew anything about what happens in front of a converter. BTw did they have converters in 74 ?

Re: X pipe and mufflers. What do you run? [Re: mopar_man] #1589861 03/12/14 09:52 PM 03/12/14 09:52 PM
Joined: Dec 2003 Posts: 36,840 South San Francisco, Californi... MidPenMopar Looking for fun? Keep looking
MidPenMopar Looking for fun? Keep looking Joined: Dec 2003 Posts: 36,840 South San Francisco, Californi...	Quote: Im probably shouldn't waste my fingers typing a response , but its easy for the ignorant to use derogatory terms to make fun of something . John , put the "O" pipe on a dyno up against any and all of the others that are out there and then come and belittle it . I love that "sort of a X-pipe" as it has given me countless fun stories of how it came to be. I ran it on my roadrunner for awhile and it seemed to work fine and always was fun to have people who needed to look under the car ask about it. What the heck maybe I will put it back on for Spring Fling??

Re: X pipe and mufflers. What do you run? [Re: mopar_man] #1589862 03/12/14 09:57 PM 03/12/14 09:57 PM
Joined: Feb 2005 Posts: 4,316 Prospect, PA BSB67 master
BSB67 master Joined: Feb 2005 Posts: 4,316 Prospect, PA	Quote: Must have been a well kept secret as not many people knew anything about what happens in front of a converter. BTw did they have converters in 74 ? I happens in the entire exhaust system, not a function of the converter.

Re: X pipe and mufflers. What do you run? [Re: mopar_man] #1589863 03/13/14 12:01 AM 03/13/14 12:01 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog OP Striving for excellence
Kern Dog OP Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	I saw that picture that Stu put up. I didn't want to toss out any insults, but that does look strange! I am intrigued about the references about exhaust gases flowing backward.... Is this supposed to mean that while the engine is forcing the exhaust out & thru the system, it is still possible that some pulses of the exhaust fights the pressure and moves back toward the front? ???? If this is true, what is this supposed to mean? What effect does it have ?

Re: X pipe and mufflers. What do you run? [Re: Kern Dog] #1589864 03/13/14 01:33 AM 03/13/14 01:33 AM
Joined: Jun 2005 Posts: 5,107 Western Md. skicker "The Champ"
skicker "The Champ" Joined: Jun 2005 Posts: 5,107 Western Md.	I run Dougs 452's with a 2 1/2" Pype's x pipe through Borla mufflers with tailpipes and tips. 383 has good sound at WOT and has absolutely no drone...or compression...or big bore...or big cam...but that's another story. ...FAFO...

Re: X pipe and mufflers. What do you run? [Re: skicker] #1589865 03/14/14 08:12 PM 03/14/14 08:12 PM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog OP Striving for excellence
Kern Dog OP Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	I'm getting ready to order the Magnaflow x pipe kit. I plan to cut and weld it in myself along with the new mufflers. I want to have flanges to be able to unbolt it in front of the mufflers. Flowmaster makes a ball flange pipe set that uses no gaskets but is $93 ! I may just weld the mufflers on for now and have a shop fab up some flanges later.

Re: X pipe and mufflers. What do you run? [Re: Kern Dog] #1589866 03/14/14 08:56 PM 03/14/14 08:56 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	OT My next one I am going to incorporate 2 of those "mesh" connectors, 1 on each side that flex to help with ex system rattling & less stress on the header pri pipes/welds from the eng vibration/movement live every 24 hour block of time like it's your last day on earth

Re: X pipe and mufflers. What do you run? [Re: RapidRobert] #1589867 03/17/14 02:03 PM 03/17/14 02:03 PM
Joined: Jan 2003 Posts: 512 Niwot, CO Formerly denn... dynorad mopar
dynorad mopar Joined: Jan 2003 Posts: 512 Niwot, CO Formerly denn...	Here is a shot of my custom x pipe. I built it based on an article I found on the net that said that there is power to be found in a larger crossover area. 8077734-DSC01065.JPG (95 downloads)

Re: X pipe and mufflers. What do you run? [Re: dynorad] #1589868 03/17/14 02:10 PM 03/17/14 02:10 PM
Joined: Jan 2003 Posts: 512 Niwot, CO Formerly denn... dynorad mopar
dynorad mopar Joined: Jan 2003 Posts: 512 Niwot, CO Formerly denn...	Here is the article. 8077748-xfactorcolour.pdf (173 downloads)

Re: X pipe and mufflers. What do you run? [Re: dynorad] #1589869 03/17/14 02:12 PM 03/17/14 02:12 PM
Joined: Nov 2009 Posts: 252 Seattle, WA. E edp enthusiast
edp enthusiast E Joined: Nov 2009 Posts: 252 Seattle, WA.	Quote: Here is a shot of my custom x pipe. I built it based on an article I found on the net that said that there is power to be found in a larger crossover area. hows it work? I'm having duals installed right now with an X pipe but not like that I'm sure. And since we're on exhaust, what is the difference between "HP / Magnum, Rams horn" manifolds for the 383 / 440 and stock ones? Is it 2.5" vs. 2.25" ??

Re: X pipe and mufflers. What do you run? [Re: edp] #1589870 03/17/14 02:16 PM 03/17/14 02:16 PM
Joined: Jan 2003 Posts: 512 Niwot, CO Formerly denn... dynorad mopar
dynorad mopar Joined: Jan 2003 Posts: 512 Niwot, CO Formerly denn...	It sounds nice with the 3" Ultraflows. I necked the pipe down to 2.5 for the tailpipes, and used TTI. I haven't instrumented it to see what my backpressure numbers are but I'll bet they are negligible. 8077759-DSC01072.JPG (71 downloads)

Re: X pipe and mufflers. What do you run? [Re: edp] #1589871 03/17/14 04:59 PM 03/17/14 04:59 PM
Joined: Jan 2003 Posts: 75,047 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,047 U.S.S.A.	Quote: And since we're on exhaust, what is the difference between "HP / Magnum, Rams horn" manifolds for the 383 / 440 and stock ones? Is it 2.5" vs. 2.25" ?? That and they should flow better .

Re: X pipe and mufflers. What do you run? [Re: dynorad] #1589872 03/18/14 01:09 AM 03/18/14 01:09 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog OP Striving for excellence
Kern Dog OP Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	Quote: Here is a shot of my custom x pipe. I built it based on an article I found on the net that said that there is power to be found in a larger crossover area. Quite interesting. Thanks for the article too.

Re: X pipe systems: What do you run? GV or not? [Re: Kern Dog] #1589873 03/19/14 12:00 AM 03/19/14 12:00 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog OP Striving for excellence
Kern Dog OP Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	The Magnaflow "Tru-X" kit arrived today. Man, stainless steel pipe looks nice! Since I have a Gear Vendors overdrive in the car, the fitment of the X isn't going to be a slam dunk. It is because of this that TTI has a special exclusion for their kits in regards to these overdrive units. I would think that it wouldn't be smart to place the X directly below the GV because the heat of the exhaust may cook the thin fluid inside. Does the exhaust run hot enough to pose a problem with that? If I place the X in front of the GV, the exit from the headers has to make a sharper bend in a shorter space. I can easily place the X behind the GV. I'm just wondering if there are any drawbacks to placing the X back that far. Currently the Flowmaster muffler INlets are both inboard. To make the X fit, I'll have to place the Dynomax mufflers with the inlets toward each rocker panel. I see no problem with that but again, I was just curious what you think. It seems that as long as I have the inlets facing forward there shouldn't be any problems. What is the likely effect of placing the X further back? Do you minimize some of the gains in torque?

Re: X pipe systems: What do you run? GV or not? [Re: Kern Dog] #1589874 03/23/14 09:25 PM 03/23/14 09:25 PM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog OP Striving for excellence
Kern Dog OP Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	I finished up today. I ended up placing the X section directly under the front yoke of the driveshaft. I had a chop saw to cut the pipes which really helped. I still did the job with the car on jackstands which is obviously not fun nor easy. I tacked the 4 pipes and X together then unbolted it all to weld away from the car. I had some nice welds and some sloppy ones. I had to take a grinder to smooth some over. I can believe how hard this metal is to grind down! The car idles so quiet ! I can hear the cam and headers more than the exhaust coming from the tailpipes. At cruise it is so quiet I can hear a rear axle whine more than the engine. Funny how so many noises seem to blend together and you don't know that they are there. power seems about the same. The air/fuel numbers are the same or a bit richer than before. I expected them to lean out. All in all, I'm quite happy that the car is quieter without a loss in power. It does have a growl compared to the raspy sound of the Flowmasters.

Re: X pipe and mufflers. What do you run? [Re: BSB67] #1589875 03/23/14 09:38 PM 03/23/14 09:38 PM
Joined: Feb 2004 Posts: 7,196 Harrisburg, Pa. screamindriver master
screamindriver master Joined: Feb 2004 Posts: 7,196 Harrisburg, Pa.	Quote: Quote: Must have been a well kept secret as not many people knew anything about what happens in front of a converter. BTw did they have converters in 74 ? I happens in the entire exhaust system, not a function of the converter. Is that what is refered to as reversion ??? Is'nt that why they "step" areas {smaller into a bigger port} like intake manifolds, head exhaust ports into bigger header primaries etc ?? Giving more resistance to the backflow pulses.... Glad to hear you've got the X pipe up and running... I used the TTI 3 inch H pipe for the GV unit and don't really mind the tone from it... I would'nt say it has a drone like some systems I've heard..

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