y pipe?
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y pipe?
I would like all of your inputs on this please... I was thinking about adding either a h pipe or y pipe to balance my exhaust. Which one would mellow my exhaust the most and get rid of the poppin? Also if i use a y pipe should i put it before one glasspack or put it after 2?
Thanks
Thanks
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Joined: Sep 2004
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From: Yokosuka, Honshu, Japan
Okay, what setup do you currently have? Duals coming off the manifold directly or? Balancing via H- or X- or Y-pipe isn't as much of an issue with an inline engine that I know of, but I could be wrong. Some more info on your current exhaust might help us answer your question better.
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sorry about that... I have a hedman header with true 2.25" duals that come back to two 31" thrush glasspacks. I haven't ran tailpipes yet because i want to get rid of the popping sound first. If i add a y pipe i will probably gain some low end torque too right?
Postmaster
Joined: Feb 2008
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From: Out of here
[highjack on]
Not to hijack your thread but speaking of Y pipes, which OEM or OEM style would be the best choice for retrofitting EFI manifolds on to a carbed 300 six?
I was looking at the 92 setup that I got my manifolds off of, and there are two CATs real close to the Y. Did they all come like this or is there one that is farther back allowing me to do my own custom exhaust?
The factory Y pipe looked very restrictive at the bends going into the first CAT.
[/highjack off]
Not to hijack your thread but speaking of Y pipes, which OEM or OEM style would be the best choice for retrofitting EFI manifolds on to a carbed 300 six?
I was looking at the 92 setup that I got my manifolds off of, and there are two CATs real close to the Y. Did they all come like this or is there one that is farther back allowing me to do my own custom exhaust?
The factory Y pipe looked very restrictive at the bends going into the first CAT.
[/highjack off]
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From: Southern California
ok, putting on the tailpipes will calm down the popping considerably. The best way to find the location for an H or x pipe is to....
Find some bright colored paint (white, etc)- any type will do
run a stripe about 12 inches long down the side of the exhaust pipe, typically about halfway between the header collector and the glasspack's- drive the truck to bring the engine up to operating temp.
climb under the truck and look at the paint, where it has the greatest discoloration or burned off, that is where you want to install the h or x pipe. (We don't need no stinkin dyno test & pc & engineering degree "grin")
Find some bright colored paint (white, etc)- any type will do
run a stripe about 12 inches long down the side of the exhaust pipe, typically about halfway between the header collector and the glasspack's- drive the truck to bring the engine up to operating temp.
climb under the truck and look at the paint, where it has the greatest discoloration or burned off, that is where you want to install the h or x pipe. (We don't need no stinkin dyno test & pc & engineering degree "grin")
Postmaster
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From: Spokane, WA
As was mentioned, the Y pipe/X pipe is a non issue...nothing to be gained or lost there. Dual out 2"-2 1/4" pipes are fine. 2 1/2" single out works fine too.
uncle.stosh: A Walker Y pipe for the EFI's is available and you can add a single 3-way super cat for considerably less $$ than an OEM replacement unit.
uncle.stosh: A Walker Y pipe for the EFI's is available and you can add a single 3-way super cat for considerably less $$ than an OEM replacement unit.
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So which do you guys think would sound better? The y pipe and one glasspack or dual glass packs with the h pipe?
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Postmaster
Joined: Feb 2008
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From: Out of here
Yeah, I didn't want to run the OEM junk. I saw there were some posts on the Walker Y pipe, but couldn't find the part number.
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I put a magnaflow dual 2.25" single 2.5" y pipe on it with a thrush 2.5 turbo muffler on tonight... OMG there is no snap crackle or pop lol anyways i was wondering what size tail pipe to run? Maybe a 2.5" with a 4" tip to make it deeper toned? Even 3" I'd like to hear some suggestions please and thank you.
Kyle
Kyle
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From: Almost Heaven
I ran dual 2.50'' pipes. Sounded real deep. You'll never get rid of the buzzing; I've heard very deep 4-cyl ricers. They sounded very deep, but still had the buzz.
If I were you and didn't care about scavenging, I would run the largest sized pipe I could. 3'' with a big ole' diesel tip.
If I were you and didn't care about scavenging, I would run the largest sized pipe I could. 3'' with a big ole' diesel tip.
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From: Boise, Idaho
I've heard conflicting thoughts on any 3" pipe on a 300. The main one being it's too big, and while back pressure isn't an issue, velocity is. With that much room, the exhaust will slow down at the end of the pipe, so the exhaust coming out of the engine hits a wall of slow moving air at the end.
The idea is to get it big enough to let all the exhaust out, and small enough to keep the escape velocity at a maximum. If you want it to LOOK big, a cover tip is the way to go.
As far as buzzing goes, yeah, it's hard to get rid of. Doable, but difficult. I have a dynomax turbo muffler on mine, and while it's got a deep rumble to it, it will still buzz at certain RPMs.
Buzzing comes from the tone, pitch, etc of the sound of the engine matching the resonating frequency of the exhaust piping. (Everything has a resonating frequency, which is why cars and living rooms buzz from speakers in sound systems). Since the 300 is soooo smooth through it's RPM band, it eventually hits every note and tone, and will eventually find the resonating frequency of your exhaust. A V8 doesn't so much because it's increase in sound isn't smooth, and often misses the frequency. If that makes sense.
The idea is to get it big enough to let all the exhaust out, and small enough to keep the escape velocity at a maximum. If you want it to LOOK big, a cover tip is the way to go.
As far as buzzing goes, yeah, it's hard to get rid of. Doable, but difficult. I have a dynomax turbo muffler on mine, and while it's got a deep rumble to it, it will still buzz at certain RPMs.
Buzzing comes from the tone, pitch, etc of the sound of the engine matching the resonating frequency of the exhaust piping. (Everything has a resonating frequency, which is why cars and living rooms buzz from speakers in sound systems). Since the 300 is soooo smooth through it's RPM band, it eventually hits every note and tone, and will eventually find the resonating frequency of your exhaust. A V8 doesn't so much because it's increase in sound isn't smooth, and often misses the frequency. If that makes sense.
Post Fiend
Joined: Jan 2007
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From: Almost Heaven
I've heard conflicting thoughts on any 3" pipe on a 300. The main one being it's too big, and while back pressure isn't an issue, velocity is. With that much room, the exhaust will slow down at the end of the pipe, so the exhaust coming out of the engine hits a wall of slow moving air at the end.
The idea is to get it big enough to let all the exhaust out, and small enough to keep the escape velocity at a maximum. If you want it to LOOK big, a cover tip is the way to go.
As far as buzzing goes, yeah, it's hard to get rid of. Doable, but difficult. I have a dynomax turbo muffler on mine, and while it's got a deep rumble to it, it will still buzz at certain RPMs.
Buzzing comes from the tone, pitch, etc of the sound of the engine matching the resonating frequency of the exhaust piping. (Everything has a resonating frequency, which is why cars and living rooms buzz from speakers in sound systems). Since the 300 is soooo smooth through it's RPM band, it eventually hits every note and tone, and will eventually find the resonating frequency of your exhaust. A V8 doesn't so much because it's increase in sound isn't smooth, and often misses the frequency. If that makes sense.
The idea is to get it big enough to let all the exhaust out, and small enough to keep the escape velocity at a maximum. If you want it to LOOK big, a cover tip is the way to go.
As far as buzzing goes, yeah, it's hard to get rid of. Doable, but difficult. I have a dynomax turbo muffler on mine, and while it's got a deep rumble to it, it will still buzz at certain RPMs.
Buzzing comes from the tone, pitch, etc of the sound of the engine matching the resonating frequency of the exhaust piping. (Everything has a resonating frequency, which is why cars and living rooms buzz from speakers in sound systems). Since the 300 is soooo smooth through it's RPM band, it eventually hits every note and tone, and will eventually find the resonating frequency of your exhaust. A V8 doesn't so much because it's increase in sound isn't smooth, and often misses the frequency. If that makes sense.
AB, I've heard your 300 on YouTube. I really think it sounds great. How loud is it though? I can't really tell on YouTube's crappy footage. Is it like "get your attention a block away" kinda loud, or more like "sporty loud"? By the way, AB is correct. Backpreasure is bad but you want scavenging. The trick is to find the correct sized pipe.
I recently cut off my tailpipes in an effort to gain more "rumble" by having the noise reverberate underneath my truck. I'll add turn downs when I can. I'll let you know if it works or not.
Sorry for rambling, everyone. I hope something was to be gained from my post.
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From: Boise, Idaho
Definitely agree that the I6 has an awesome sound all it's own. You know one when you hear one.
I wanted mine to have a nice and solid sound to it, but I'm not the biggest fan of loud. My brother has a "loud" muffler on his 4.0 jeep and it makes for very difficult conversation while driving down the road.
Mine's just about right, it somehow has this vicious throat tearing sound that only happens in first gear, so it's only when I'm flooring it from a light, or taking off. Then it's much more mellow and smooth.
I'd say, all in all, loud enough to hear it if you're paying attention, not loud enough that if you don't like loud vehicles, it won't annoy you.
PS: Got some more carb tuning parts in the mail, should be here soon. Once those are in, hopefully it'll be tuned better. I'll get some video of it then. I have to borrow a camcorder from work as I don't have one of my own.
I wanted mine to have a nice and solid sound to it, but I'm not the biggest fan of loud. My brother has a "loud" muffler on his 4.0 jeep and it makes for very difficult conversation while driving down the road.
Mine's just about right, it somehow has this vicious throat tearing sound that only happens in first gear, so it's only when I'm flooring it from a light, or taking off. Then it's much more mellow and smooth.
I'd say, all in all, loud enough to hear it if you're paying attention, not loud enough that if you don't like loud vehicles, it won't annoy you.
PS: Got some more carb tuning parts in the mail, should be here soon. Once those are in, hopefully it'll be tuned better. I'll get some video of it then. I have to borrow a camcorder from work as I don't have one of my own.
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well dual 2.5" tailpipes would have more volume than a single 3" am I correct? some ppl have done dual 2.5" and it has worked for them so I really wouldn't be hurting anything by putting a 3" tail pipe on it? Or would I lose torque because there isn't enough back pressure? There is more back pressure with a tailpipe than an exhaust system without one am i correct?