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novaDAK
Dodge Dakota
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7/28/2006
18:05:46
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 Subject: RE: Attn. GraphiteDak!!!
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Thanks for the info!
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novaDAK
Dodge Dakota
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7/30/2006
23:05:09
| RE: Attn. GraphiteDak!!!
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So GraphiteDak, you said it will sound better if I run a tailpipe over the axle? I was thinking of this:
1)Run a turndown before axle, I've heard that those make it deeper and louder
2)If there's room, run a short pipe from the glasspack into a 3.5" stainless tip in front of the rear tire, but I'm not sure that there will be enough room due to glasspacks being longer than other mufflers
3)Run the stock tailpipe, only cut the elbow bend off the end so it dumps next to the spare tire under the bed after the axle. I'm thinking this might give it the better sound of a full tailpipe, without the look.
Any thoughts?
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GraphiteDak
GenIII
 
7/31/2006
14:11:28
| RE: Attn. GraphiteDak!!!
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It seems that when the exhaust is dumped under the truck, you get that loud annoying vibration and rumble in the cab. And sometimes the echo or whatever makes it sound funny to the outside as well.
Bringing pipes all the way out will reduce the vibrations in the cab and make it more like a nice loud snap as well.
I'd recommend piping it out all the way somehow vs. dumping anywhere under the truck.
The only dumping is really nessessary is at the track, with seriously built engines. Which sound good regardless of them being dumped or not and of course they don't care about the vibrations or not being able to hear inside the cab :p
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novaDAK
Dodge Dakota
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7/31/2006
14:30:52
| RE: Attn. GraphiteDak!!!
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Ok, that cleared things up for me.
Thanks!
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novaDAK
Dodge Dakota
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8/02/2006
19:51:04
| RE: Attn. GraphiteDak!!!
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I definately don't want the interior to be shaking, so I'll run the pipe over the axle. I think I'll keep the cutout where it is though for those times I want to be as loud as possible.
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ZenDak
Dodge Dakota
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8/03/2006
17:22:45
| RE: Attn. GraphiteDak!!!
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I have my turn downs before the axel with a flowmaster two chamber. I have an '01 4.7 with headers too. It sounds mean! Sets off car alarms easy,,,I like the loudness,,it doesn't shake the interior (at an annoying level that is :)
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novaDAK
Dodge Dakota
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8/03/2006
21:57:15
| RE: Attn. GraphiteDak!!!
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You think I should even bother with the cutout if I just go with a short 18" glasspack? The one advantage I see to not having it put on is so I can start the truck up with the pack with no tailpipe to see if I like it or not, and that way if I don't like it I can have it welded up to the tailpipe for a better sound.
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novaDAK
Dodge Dakota
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8/12/2006
23:25:06
| RE: Attn. GraphiteDak!!!
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Do you think it matters what size (18, 23, 40" cases) or brand (Flowtech (Holley), Thrush (Dynomax) or cherrybomb (not sure if they make one that's 2.5 in/out) or doesn't it matter (Thrush has perforated tube vs. louvered if that matters). Anyways, I'm going to see a neighbor and borrow a sawzall for when I cut the small piece of pipe off near the spare tire. If the flowmaster sounds the same, then I'll know that I can keep it that way (dumped after axle) with the glasspack without anymore vibration or drone. I'm still tempted to just slap a turndown on before the axle since the pipe after the muffler is VERY rusty (flaking at the welds). I've heard that it doesn't shake or drone as much if you aim the turndown towards the side vs. straight down. I hate making decisions!
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novaDAK
Dodge Dakota
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8/13/2006
18:13:44
| RE: Attn. GraphiteDak!!!
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I looked at my exhaust again and it's actually worse than I thought. On the muffler (about 7-9 years old, I think, because it was there when I got the truck from the first owner), there is a crack in the case, and the welds are actually flaking on the side of the case and where it is welded to the pipes. I have about 33" from the o2 sensor and the end of the muffler, so I should be able to fit a 23" case (28" overall) glasspack in place of the cutout and muffler, and still have room for a turndown before the axle if I want to go that route.
__________________
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novaDAK
Dodge Dakota
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8/15/2006
03:23:48
| RE: Attn. GraphiteDak!!!
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I don't want it to seem like I'm talking to my self but I just thought I'd say that after measuring the case width of my flowmaster, it is the quieter SUV version, not the Delta Flow. As for what muffler I want, I'm going to get a 18-23" case glasspack. If for some reason I don't, (not going to happen, but just in case I change my mind) I will just get a 2-chamber muffler with a turndown on the muffler. I've heard these are VERY loud and actually sound good. It doesn't matter if it's a true FM or a cheaper copy like a Flopro V-Force or Force pro-series. Anyways, anyone know how much louder a glasspack is when it's turned backwards? Is it as loud as straight pipes, or is it still 'quieter'?
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GraphiteDak
GenIII
8/16/2006
14:10:34
| RE: Attn. GraphiteDak!!!
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Actually, most of the glasspacks I've seen lately seem to have the holes cut in the inner tube at both direction. Perhaps so they can work in both directions the same.
If you want it really loud, install it and get it good and hot. Then you can sprey asome cold water in it. Hopefully NOT getting it near your exhaust valves!!!!
In time, the glasspack will get louder on it's own, and still be louder than anything as is.
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novaDAK
Dodge Dakota
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8/16/2006
16:43:43
| RE: Attn. GraphiteDak!!!
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Well, I might not end up with a glasspack, after this long thread. I still might, but after talking with my mom, she said she would help pay for some of it, but only if I skip the 'packs. Her and my dad want me to have an exhaust that will last for the rest of the time I have my truck (as long as it runs ) and they think the packs will wear out in a year or two (true in most cases). I've thought of two alternatives. Since I'm replacing the tailpipe now, I'm thinking of getting a 4" round 14" case magnaflow (just like the glasspack, only shorter, and stainless packing and tube), and having a turndown put on before the axle to make sure it's loud. The other muffler is like a flowmaster but cheaper and a tad louder, the Force Pro-series. I'm leaning towards the magnaflow because it's similar to a 'pack and is straight through.
Just so you know the magnaflow I'm looking at is p/n 10416, and magnaflow classifies it as a muffler/resonator, so I assume it will be as loud if not louder than a glasspack.
This still doesn't mean I won't get a glasspack, but I'm still in school so I need to save as much money as possible.
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novaDAK
Dodge Dakota
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8/16/2006
16:46:36
| RE: Attn. GraphiteDak!!!
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One other thing. I might not want it as loud as possible, since this is my daily driver, but I think the magnaflow or 2-chamber will be loud enough for me if I don't get a glasspack.
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GraphiteDak
GenIII
8/16/2006
21:43:43
| RE: Attn. GraphiteDak!!!
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I think the biggest problem would be to dump it under the truck.
That will get annoying very fast.
Pipe it out the back or at least to in front of the rear wheel aimed OUT from the truck and not down. That way it will be as loud as possible OUTSIDE the truck and not vibrating your floorboard!
Glasspacks will NOT wear out in a yr or two to where you need to replace them. They will just get louder as the packing burns out.
So what right??? :)
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novaDAK
Dodge Dakota
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8/16/2006
22:04:13
| RE: Attn. GraphiteDak!!!
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That's true, I will have it out in front of the tire if there's room (should be). The other reason I was leaning towards the shorter magnaflow is because my tailpipe needs replaced and I don't want to pay for a shop to bend a new pipe. If I went with a glasspack, there wouldn't be enough room for it to come in front of tire, so it would be either a turndown or a new tailpipe. I figure if I still can't have it in front of the tire due to clearance, I'll just have a turndown put on, angles outwards (not straight down). If I don't like the sound or vibration, I'll just have to pay for a new tailpipe. I won't have anything done till at least next week, so I'll still have plenty of time to decide whether or not to get the 'pack.
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novaDAK
Dodge Dakota
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8/16/2006
22:25:34
| RE: Attn. GraphiteDak!!!
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I will still consider the glasspack, but as I had previously said, I just came to realize this is my daily driver, and I want it to be LOUD, but not obnoxious. I'm sure a glasspack would be fine, but I might not want it to get any louder. Whatever I get, I want to last another 5-7 years or however long I keep the truck, and I want whatever I get to be what I want because I don't want to have to replace anything later on.
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novaDAK
Dodge Dakota
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8/16/2006
22:27:14
| RE: Attn. GraphiteDak!!!
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Plus, the main deciding factor is what will be available when I get it all done; I might have to order off of Summit or Jegs.
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GraphiteDak
GenIII
8/17/2006
01:50:30
| RE: Attn. GraphiteDak!!!
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Well if you want it loud like noticable, but not drive you nuts loud in the cab, you wont be disappointed with a good Flowmaster. I still think they have one of the most unique sounds.
I'm running dual Delta Flow 40's and it's pretty damn loud out the rear exit tail pipes but not too bad in the cab at all!
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novaDAK
Dodge Dakota
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8/17/2006
02:55:34
| RE: Attn. GraphiteDak!!!
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If I go with a flowmaster it will definately be the original 40. Basically at my school last year I was competing with an 80's IROC Camaro (I think it had a 305) for sound, and when I ran with the cutout open behind the cat, I think I beat him in loudness, and it sounded almost exactly lik his. He has turndowns on his because I can't see any pipes out the back or sides, but I never actually asked him what he had. He graduated last year. Right now I'm helping a friend out looking for a classic car, I'm pushing him towards a MOPAR, but he already loves them so that was easy! The problem is finding one. He said he wants to run FM50 Delta Flows on it when he gets it since he liked mine (only mine was the SUV version).
Anyways, I guess it's the fight between what's loud and what's tolerable for every day driving.
Whatever I get (whether it's a 2-chamber or a magnaflow) I want to get it out in front of the rear tire if there's room. If not, I'll just have a turndown tip put on and angled down and out, not straight down. If I don't like the sound, then I'll just pay for a new tailpipe for fake duals. I'm still leaning towards the 14" magnaflow because it's a straight through perforated tube muffler with stainless packing, I think that one of those would sound good. But as you said nothing comes close to the sound of a FM40.
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novaDAK
Dodge Dakota
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8/21/2006
13:00:53
| RE: Attn. GraphiteDak!!!
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Do you think I should go with the 4" round magnaflow? Or should I go with the 5x8 oval instead? I'm thinking of going with the round one, but I'm not sure if that will be too loud for a daily driver. Either way, it will have a 14" case.
The reason I ask is because Magnaflow lists the round one as a "muffler/resonator" which makes me think it might be a bit too loud. It won't be as loud as having an open cutout obviously, but I just want to make sure it will be bearable to drive everyday.
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