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I am planning on using an exhaust header on my 78 f-100 restoration. I just can't decide on if I want to use a single outlet header and a single inlet, dual outlet muffler for "fake" duals or a go with a split header that has two outlets and run true duals.
What my decision hinges on is how the truck will sound. If there any place on the web that has sound bytes from any of these set-ups? I am planning on using a flowmaster muffler or mufflers.
here is an interesting idea for you, this is what i did and absolutly love it. i got the hedman header that has two banks. i built my own custom Y pipe. then ran it into a 24 inch glass back. then made it exit right in front of the right rear tire. the collectors that come with the headers drop both banks down to 2 inch, i used adapters to bring them back up to 2 1/4. i used 2 1/4 pipe through out the truck. it kinda sounds like a cummins without a turbo or an old farm tractor. it does not sound like a ricer. the only problem with this setup is when i roll down my passenger side window it is quite loud. i may consider running it strait out the back in spring. since cutouts are illegal on headers in PA i made it so i can unbolt my Y-pipe with 9 bolts and then be running open header.
You see that is what I am trying to get around. I had a straight pipe on my beater ford and the tractor sound got to me after awhile. I also know that I don't want to sound like a ricer.
I'm looking for a deep, throaty, somewhat mellow sound. Should I go with a different brand of muffler? Louder doesn't mean better.
I am trying to figure this out now so I can run the exhaust before I put the body back on. It will be easier to weld the pipe all the way around, and mount the hangers that way.
I'm glad I live in indiana. We have relaxed vehicle laws, and no inspections. I know people who have the motorized cut outs, and they will open them up on the highway. If you are not in a residential area the police will leave you alone.
I am running dual 2.5" exhaust with dual turbo mufflers turned out in front of the rear tire. It is pretty mellow, but sounds "ricey" about 3000 rpm. For general use, though it is pretty nice. Oh, and I don't have anything on the floor of my cab but bedliner.
I have split dual exhaust headers and exhaust with two reg mufflers both pipes bend after back tire...sounds awesome no doubt about it its throaty!!!!
but I think i have way to much flow.... put that into mind!
I read somewhere that 1 inch pipe or dual 2 inch pipes is about all the bigger you want to get on a 300 six. Anymore, and its of no use and may lose you power (not sure about that). Is that a correct train of thought?
Thanks for all the input so far. Is there a better muffler for a mellow sound than Flowmaster? If not, what series would be best? I would love to have the sound you get from those new srt-8 chrystlers or the mustang GT's. I know that is impossible with a 300 six, but I would like to get a close to it as I can.
search for a thread titled "more I-6 videos" there are a couple different setups specific to the ford 300.
Personally, I ran true 2" duals no cat off dual out headers, using your standard generic turbo muffler. It was ok, kinda ricey, I then installed an X pipe, with hopes of mellowing it out, I was happy all around, it even felt better performance wise, not really due to SOTP but how the speedometer arm swept quicker.
From what I can gather, as long as you run a single pipe (to either a single in/out muffler or single in/dual out muffler) or add a crossover to dual pipes (dual in/out muffler would work), you'll really knock some of the ricey sound out of it.
check out the link I provided, there might be something there you like.
later
Last edited by Motorhead351; Mar 10, 2007 at 09:21 AM.
I am running a Hedman header on my truck. I used to have it with 2" pipes off the collectors into a Y pipe, 2.5" single into a Flowmaster 40, with 2.25 duals out the back and 3.5" tips. It sounded awesome at idle and had a raspy sound in the higher rpms. I am redoing the whole truck this winter, I am going to change it to 2" duals of the header into a 3" single... I am not sure what muffler to use yet. Any suggestions?
Dynomax as well as other companies have a muffler with a built in crossover to balance out the sound. It has 2 inlets and 2 outlets. Probably be a little easier to install, and the truck would have true duals as long as I use the header with two outlets. I am seriously considering it.
I installed a Cat-back system on my 3.0 ranger over the weekend. It's kinda ricey, but better than nothing. I know I can do better with my 300 six.
I'm running the EFI exhaust manifolds (basically cast-iron dual exhaust headers), with a dual pipe just under the cab, then single to the muffler (3-chamber flowmaster, 45 or 75, can't remember) & single outlet just in front of the rear tire. Its not too loud (as long as the passenger window isn't down) & sounds like a combination of a diesel & a V10. I've gotten several complimants on how it sounds, usually ending with, "thats an INLINE six"? "Cool." When I first got the exhaust installed I wasn't too sure about it, but it really grew on me.
Edwin
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