exhaust theory
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exhaust theory
I just got a fuel injected 300 f150, I'm pondering the exhaust options and wanted some input. My current truck is a 93 chevy 350 and have done alot of changing the exhaust to get it the way I want and would like to avoid that this time around on the 300. Most info on exhaust work has to do with v8 and riceburners, so I'm sort of in the dark here. To make the deepest tone on these engines what would be the best route? On my Chevy I have 2.5 pipe to the y, one foot of 3 inch a 3 inch Thrush welded turbo, 6 inches of pipe, then a 3x24 glasspack, no turndown, just dumbs at the front of the bed. When you walk past at idle you can feel it in your innards, its not overly loud at all, and very mild over 2k rpm. I know that the 300 will not sound the same, I just dont want is to sound like a tractor, nothing againt the tractor sound, or people who's trucks sound like tractors, just not for me. Dual 2.25 pipes, no cats, to turbo mufflers or glasspacks and either turndowns or side exit behind the cab? OR, 2.25 duals to y to 2.5 or 3 inch, pack or muffler, side exit or turndown?
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Great way to put it, Wes. I woulda repped you, but "they" won't let me 
This one doesn't sound much like a tractor to me, I hope to get mine to sound about like this one day.
(skip ahead to 1:00 to avoid a bunch of bullsh..).
http://www.youtube.com/watch?v=BZxGQ079D8o
This one doesn't sound much like a tractor to me, I hope to get mine to sound about like this one day.
(skip ahead to 1:00 to avoid a bunch of bullsh..).
http://www.youtube.com/watch?v=BZxGQ079D8o
Post Fiend
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Although he did rev it up a little. My truck idles down the highway at about 1700 rpm in 5th at 60. Seems like I could keep mine in that range and get a nice loud note out of it.
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From: Eastern Ky
You are 100% correct. Might as well get some stacks coming outta the hood with rain caps, it'll sound about the same.
Although he did rev it up a little. My truck idles down the highway at about 1700 rpm in 5th at 60. Seems like I could keep mine in that range and get a nice loud note out of it.
Although he did rev it up a little. My truck idles down the highway at about 1700 rpm in 5th at 60. Seems like I could keep mine in that range and get a nice loud note out of it.
Post Fiend
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From: town of less than 200 ppl
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https://www.ford-trucks.com/forums/7...und-clips.html
Go through that "Sticky" found at the top of the Forum page.
Go through that "Sticky" found at the top of the Forum page.
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I have been listening to sound clips for the last three days, I suppose I will just fully embrace it, go to TSC and get a muffler with the rain guard flapper and run a single stack. If its gunna sound like a tractor I'm gunna put a tractor muffler on it! I've got to repace the exhaust anyway, its a cheap turbo that rotted and the cats are clogged from a missfire that never got taken care of by the previous owner.
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From: Prince George, B.C.
Take a look through those tractor mufflers before you buy them. I have seen some with a washer welded in just below the outlet to restrict and shut them up more. (Causes more flow into the louvers)
I'd keep listening to clips and don't rush... Took me awhile to get mine right last year, now I'm starting over because I swapped to the EFI manifolds. That one posted above with the true dual Thrush glasspacks is still my favorite, even with thrush turbos instead they don't sound bad.
I'd keep listening to clips and don't rush... Took me awhile to get mine right last year, now I'm starting over because I swapped to the EFI manifolds. That one posted above with the true dual Thrush glasspacks is still my favorite, even with thrush turbos instead they don't sound bad.
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Another member here, Arctic Y Block, told me of a trick old inline 6 hot rodders used to do back in the day to get rid of the drone (he claimed they did it to pick up power, but that it also happened to get rid of the typical 6 cylinder drone).
They would create a dual exhaust setup that had 4 cylinders dump into one pipe and 2 cylinders dump into the other. One a 300 you would have cylinders 1,2,5,6 plumbed down to one collector and cylinders 3,4 plumbed to another collector. That would give you an exhaust pulse pattern of 2-1-2-1 much like a v8 pattern of 1-2-1-1-2-1. And different from the 1-1-1-1-1-1 of the dual exhaust you would get by plumbing the EFI manifolds all the way back as true duals. I would like to try this at some point but all my trucks and car are v8s. He said the tone of the exhaust was really something. I think this is the only way to change the actual notes that a straight six sings. Otherwise, you'll always have the drone in one shape or another.
They would create a dual exhaust setup that had 4 cylinders dump into one pipe and 2 cylinders dump into the other. One a 300 you would have cylinders 1,2,5,6 plumbed down to one collector and cylinders 3,4 plumbed to another collector. That would give you an exhaust pulse pattern of 2-1-2-1 much like a v8 pattern of 1-2-1-1-2-1. And different from the 1-1-1-1-1-1 of the dual exhaust you would get by plumbing the EFI manifolds all the way back as true duals. I would like to try this at some point but all my trucks and car are v8s. He said the tone of the exhaust was really something. I think this is the only way to change the actual notes that a straight six sings. Otherwise, you'll always have the drone in one shape or another.
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Another member here, Arctic Y Block, told me of a trick old inline 6 hot rodders used to do back in the day to get rid of the drone (he claimed they did it to pick up power, but that it also happened to get rid of the typical 6 cylinder drone).
They would create a dual exhaust setup that had 4 cylinders dump into one pipe and 2 cylinders dump into the other. One a 300 you would have cylinders 1,2,5,6 plumbed down to one collector and cylinders 3,4 plumbed to another collector. That would give you an exhaust pulse pattern of 2-1-2-1 much like a v8 pattern of 1-2-1-1-2-1. And different from the 1-1-1-1-1-1 of the dual exhaust you would get by plumbing the EFI manifolds all the way back as true duals. I would like to try this at some point but all my trucks and car are v8s. He said the tone of the exhaust was really something. I think this is the only way to change the actual notes that a straight six sings. Otherwise, you'll always have the drone in one shape or another.
They would create a dual exhaust setup that had 4 cylinders dump into one pipe and 2 cylinders dump into the other. One a 300 you would have cylinders 1,2,5,6 plumbed down to one collector and cylinders 3,4 plumbed to another collector. That would give you an exhaust pulse pattern of 2-1-2-1 much like a v8 pattern of 1-2-1-1-2-1. And different from the 1-1-1-1-1-1 of the dual exhaust you would get by plumbing the EFI manifolds all the way back as true duals. I would like to try this at some point but all my trucks and car are v8s. He said the tone of the exhaust was really something. I think this is the only way to change the actual notes that a straight six sings. Otherwise, you'll always have the drone in one shape or another.
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