stack drone inside cab?
 

Ok I'm getting ready to make a decision on what type of exhaust I want. :yeah: Part of me wants to keep it sleeper-ish and just run a 5 inch out the back, but part of me has always wanted a stack, if I go that route I'm going to run either a 6" or 7" single, probably a CAT style, and will be cut off at or below the top of the cab.

This is primarily a run around town/play truck so in that situation, the noise won't bother me that bad. But every now and then I leave the car at stillwater and drive my truck the 200+ mile trip back home.

My questions are:
1) how bad is the drone in a 12v with stacks at highway speeds?
2) and how loud overall is it? I don't want to have to scream over the sound if I have a girl in the truck or somethin.

Also while I'm on the topic, the engine is pretty loud inside the cab (don't get me wrong I'm obsessed with the sound of a diesel engine just as much as any other guy on this forum, but it's too much and doesn't sound good to me. I prefer to hear the engine the most when I roll down the windows, not overwhelmingly from the firewall). I'm pretty sure this gasser ford didnt have much sound insulation from the factory. What can be done there?

Thanks guys :c:

25-35 sucks in 3rd gear 4th fine 45-65 fine in 4th sucks in 5th 68 on up is quiet, you can hear the motor again. I can put up with it though, drove 2 hours at 60 and it was ok since i had the windows down but the poor people in back were ready to crawl outa the truck :D Its doable for sure, but if it was my dd itd have a muff or be back out the back.

Thanks dude. My dilemma is I want it loud when I want it loud, but quiet when I want it quiet.

Maybe I could run the stack and rig up an electric cutout to a muffler, then run it back into the exhaust to where I could switch it back and forth :humm:

Have a look at this, it might give you some ideas,

https://www.dieselbombers.com/5-9l-c...ll-w-pics.html

I think alot of it has to do with the size of the stack my 8 inch one was so loud I couldnt hear myself think cruising down the highway it gave me a headache with worst drone you could possible imagine, sounded great around town but my hell I had to where ear plugs pulling a trailer. needless to say it was only in there for a couple weeks and I took it out it just sits in my garage now...waste of 400 bucks:ouch: my truck is a regular cab though too probably wouldnt be bad if it was in an extended cab. But my old dual 5" stacks were great they sounded good and didnt drone wish I still had them:argh:

I'm straight piped to behind the wheels and any time I'm making 8-13 psi there is serious drone. Can barely talk to someone if the window is down. I wouldn't want to deal with stacks at all. Just my two cents.

i have a 7 inch mitre on my 95 12v auto, and its quiet untill you hit about 2grand then at about 2300 it quiets back down....i have 3.55s or 3.54s so it isnt as bad but once you hit two grand with the windows up it feels like the air in the cab is pushing against your ears.

but this is all in what you want, normal driving i can talk to my girlfriend fine aslong as its under 2grand, 2 grand you have to talk louder.

but this truck is quieter then the 97 i had with a 4 inch exhaust with a highflow muffler

alright thanks dude. right now I'm running right at 2000 or 2100 at highways speed with my 3.55's, but I'm going to eventually going to put something a little higher in to drop me down to mid to high 1000's. and maybe then I can topple 30mpg :yeah:

I wonder why you 97 with a muffler was louder than your 95? there is a bit of a stock power difference.... :humm:

yea i got a 5 inch single on my regular cab and i drove from houston to florida with the windows cracked the whole way doing 75 and it wasnt bad. but i do have an 8 inch sittin in the garage im dyin to put on. these florida boys dont know what loud is haha :scare2:

because on his 97' the pipe is smaller.

And if your driving over 200+ miles, i wouldnt put a stack on it. You may love it now but down the road, it gets kinda annoying.

i took my truck from wytheville va to mt airy NC, it takes about an hour and a half to get there, and it wasnt as bad as i figured it would be, but i was running about 75 there and back.

but i think any longer then that it will be too annoying to keep.

i know that on my old 86 6.9 idi diesel i had a 6 inch mitre cut on it and i mean the thing was loud!!! but my buddy had the same thing on his power stroke and it seems to be that the turbo actually quiets it down more i have friends with them as long as you have a turbo diesel and not a idi you should be good

If I was doing long range driving all the time, I wouldn't even consider it. But I have two vehicles up here at college, my truck, which I primarily use running around town, back and forth to class, etc., and then my car (bout 35-37mpg) that I usually jump in before I head back home, so its a rare circumstance that my truck makes the trip back home.

But I just don't want to put in the stack, not like it, then have a hole in my bed :argh:

Theres a couple of guys here in town with stacks, I need to holler at one or two of them and go for a ride.....

Thanks for all the help guys :tu:

Yup!! best thing to do. I suggest riding in any 12vavle because 12valves are louder then anything else. (my opinion)

^^ i second that. and for the hole in the bed, a steel plate and nice weld will do the trick

I have a full 4" straight exhaust to dual 4" turnout stacks on my 12valve Fummins, extended cab truck, and I drove 8 hours, windows down, at 75 mph average and the turbo whistle was actually louder than the exhaust drone....it was very tolerable. I second the comment on depending on size of stack and exhaust. The bigger the transition, the more the drone, i.e: 4" exhaust to 7" stack equals more drone than 4" exhaust to 5" stack...or so it seems anyway. Just my two cents...:w2:

it is ABSOLUTLEY HORRIBLE!!!!!!!! dont do it if u wanna hear your radio.. i have 5in to 8in stack and i wish i never did it.. escpecially if u have a sliding rear window:td:

tell me about it, sometimes i wish it was a regular exhaust, untill im sitting somewhere where i can rev it and the wind blows smoke on people i dont like.

hmmm seems like a lot of you guys have regular cabs, while mine is an extended cab. might make it a little more bearable :humm:

and I have a pretty loud radio so I think I could probably drown it out if I wanted too :c:

but I still have a couple hundred dollars to think about it lol

i agree ozzking! when i am driving i hate it... but when stopped or sitting i love it!

mine gets loud around 2 grand but you still hear the hum below that I guess depends on muffler etc I have a hushpower muffler and was considering those that went inside the stacks

if you have a regular cab truck, then get some ear protection. I have a 5 in. turbo back with no muffler to 5 in. stacks. if I have a passenger we have to yell at each other to have a conversation.

My buddys 05 ford with a 12v is loudest around 2100 r's then it queits down a bit. Still loud though. My brother had one 7 in on his 12v thank god he cut it off. Stacks have good tones but they are too loud imo

Haha and mine runs about 2100 at 60-65 :s:

Idk I'm still debating on it, we'll see what happens when the money comes around lol

my stacks are straight piped & the noised has never bother me & it never bother the my ex,only person the noise ever bother was my mom & shes always hated my truck,i always drive with my windows down though.my dads old 03 that he put stacks he got tired of the noise & changed his truck insulation & the cab drone was queit enough that it rarely ever bothered him on long drives with that truck

at high rpm it gets kinda ruff

if you drive alot a stack really gets annoying, mine gets annoying because the automatic transmission in my truck doesent know wether its coming or goin,so it runs high rpms some times and others.

the drone is horrible,really if you want obnoxiously loud just run a straight pipe infront of the rear tire, that is really loud.

just my 2 cents.

thats where it is right now lol

It comes out right in front of the rear tire, extended cab short bed truck. When I was using the factory dodge exhaust (3" to a 4" tip) you could barely here any drone, but I threw about a 4 foot piece of a 6" stack under there, turning out right in front of the rear wheel, and it increased the drone considerably. Lower rpms and highway speeds its not bad at all, the only time it gets bad is when you're really gettin on it in higher rpms, and it'll throb you ears.

I have an 8 on my 96 with 4" going to it. All straight piped. Its the same as everyone else. About 2 grand its loud as hell and I cant hear the stereo. But cruising down the highway I can barley even hear it. And it sounds amazing with all the windows open. But honestly its all in preference. My truck is an extended cab too so that helps. :tu:

I really want to, at least for a little bit, and if its too loud I may just throw a resonator on there. I have my car which is my refined lol ride, and it makes most of the highway trips, so I don't think excessive loudness will be a problem :humm:

Just gotta get around to doin it now. More than likely I'll wait til this summer, when I can start doin some performance stuff to the truck (plate, afc, injectors, turbo, dd clutch), because I really don't want to have a stock truck with a stack. I want them to know this truck means business :yeah:

I'm running a single stack on the passenger side of my truck, 5" the whole way back from the downpipe.

It sure does drone at some speeds, but other times sounds awesome. I run around 2100-2200 rpm at highway speed and with the windows closed it's all engine, no real drone. Get on the throttle and the exhaust gets loud pretty quick.

I'm running a 1994 F350 reg cab, 4x4 with a 91.5 12v. I prefer the rotary 12v, they are slightly quieter in my opinion than the p-pumped engines.

stock plate forward
 

I am getting ready to slide the stock plate and afc forward, will i have to adjust the govenor arm too?

update. got it all put on, 5" from DP back to a 5" stack, thing sounds awesome! :yeah:

windows down, its 10x quieter in the cab, and even windows up, you can barely hear it. about 30mph in 3rd, 52 in 3rd, and a little over 70 its gets loud in the cab for just a second. cruising in 5th anywhere from 50 to 70 you can barely hear the exhaust :tu:

I can assure you though, that anyone beside you, especially if their window is open, can easily hear you. Perhaps enough so to be displeased. I've received a few negative salutes in response to the exhaust of my truck!

Oh yeah dude its loud as crap outside the truck lol

But think about it this way. If Im in 4 lane traffic in town, and someone is driving beside me (particulary a car), with side exit exhaust all that sound is going directly to their window, whereas with a stack, its going up in the air. I feel this is much less disruptive and shocking to little ol granny and grandpas in their caddys and town cars driving next to me :tu:

does the style of stack change the volume coming out of it, ie turnouts vs straight cuts or miter cuts?:humm:

My stack is the 90 degree radius, so the stack orientation puts it pointing parallel to the ground and approximately 45 degrees towards the rear and passenger side of the truck. The stack does not go any higher than the top of my cab, so my stack is essentially in the window of every SUV, van and pickup, and even worse for larger vehicles, such as big trucks.

It is a very unique sounding truck I should make a youtube video one day. I love driving it with the rear window open, but I usually have to wear my earplugs for a long drive if I do that.

I wouldnt say it changes the volume, but it does change the direction of where the sound is going.

Nice! :c:

Heres what I used. DIY stack kit and 5" exhaust system I built myself, all for under $200 :tu: Stack is not in the pics, picked it up for $25 from a junkyard.

3" to 4" adapter, 4" to 5" adapter, 5" 90*, 5" flex, 5" clamps, and 5" to 5" connector

Attachment 42308

5 feet of 5" pipe

Attachment 42309