Who's running dumps?
Lead Driver
Joined: Mar 2000
Posts: 9,359
Likes: 1
From: Hampstead, NC
Who's running dumps?
I am. I'd say the resonance in the cab is pretty bad. Well, maybe that's because the exhaust ends about 8" behind the cab. I'll be changing this exhaust as soon as I get my rear tank fixed. I'll be going to 3" pipe, X pipe, ?????? mufflers and dump it right before the rear axle.
Here's a pic of my current setup.
https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=7447&.jpg
Here's a pic of my current setup.
https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=7447&.jpg
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Lead Driver
Joined: Sep 2002
Posts: 9,540
Likes: 2,032
From: North Texas
Who's running dumps?
I had dumps on a car a while back and was cool for a while. It was dumped right before the rear axle over the rear seat/back door floor pans.
Got to the point it was unberable after a while, which made me slap tail pipes on there.
I was going to dump the truck just after the rear axle...about where the spare tire starts.
Thanks
Got to the point it was unberable after a while, which made me slap tail pipes on there.
I was going to dump the truck just after the rear axle...about where the spare tire starts.
Thanks
Senior User
Joined: Aug 2002
Posts: 309
Likes: 0
Who's running dumps?
I have dumps right behind my cab and big tips. I have headers, 3 in exhaust and FM 40's. It has bad interior resonance, especially when you are acclerating in 4th gear or going up a hill or something. The trick is, insulate the living hell out of your cab so you can hear yourself think on the inside, but is pure fury on the outside.
Senior User
Joined: Aug 2002
Posts: 363
Likes: 0
From: Woodbridge
Who's running dumps?
I have a single in, dual out Flowmaster 40 on my 460. The exits on the muffler have just enough pipe to get the hangers on, approx. 3-4". Interior resonance is quite apparent. My passengers tend to wince for the first few miles, but seeing as how I am half deaf, it doesn't bother me! I WANTED to be able to hear the exhaust inside the cab, and that is certainly doing the trick.
Posting Guru
Joined: Aug 2002
Posts: 1,258
Likes: 0
From: clementsport canada
Who's running dumps?
mine's dumped under the bed, and with a 302 and dual 6cyl mufflers, i didn't really knotice it..... but with the glass packs i've got now.. you know about it... sounds great crusin... but crankin on it is a bit much....
i think i'm gonna run mine out ahead of the wheels someday
i think i'm gonna run mine out ahead of the wheels someday
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Lead Driver
Joined: Sep 2002
Posts: 9,540
Likes: 2,032
From: North Texas
Who's running dumps?
>mine's dumped under the bed, and with a 302 and dual 6cyl
>mufflers, i didn't really knotice it..... but with the glass
>packs i've got now.. you know about it... sounds great
>crusin... but crankin on it is a bit much....
>i think i'm gonna run mine out ahead of the wheels someday
6cyl mufflers? I have a 50 Series Flow******* on there so, think it will be different?
Thanks
>mufflers, i didn't really knotice it..... but with the glass
>packs i've got now.. you know about it... sounds great
>crusin... but crankin on it is a bit much....
>i think i'm gonna run mine out ahead of the wheels someday
6cyl mufflers? I have a 50 Series Flow******* on there so, think it will be different?
Thanks
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Senior User
Joined: Aug 2002
Posts: 363
Likes: 0
From: Woodbridge
Who's running dumps?
My setup posted above have the pipe ends about a foot past the front edge of truck bed. The catalytic converter on the 460 is looonnnngg, and the muffler middle is about where the cab/bed joint is.
Junior User
Joined: Oct 2002
Posts: 85
Likes: 0
Who's running dumps?
I have a couple of chepo Thrush turbo muffs on my '73 with a 302 dumped about a foot befor the rear axle.
Stupid thing is the vehicle inspection guys tell me that this isn't allowed in NC due to risk of exhaust gases getting into the cab.
I will tell you now that my exhaust is tolerable on the highway but if I have to put my foot in the carb for anything you can't hear yourself think in the cab.
I am running true duals with 2 1/2 inch pipe to the muffs and the stock 302 manifolds. No Cats.
Stupid thing is the vehicle inspection guys tell me that this isn't allowed in NC due to risk of exhaust gases getting into the cab.
I will tell you now that my exhaust is tolerable on the highway but if I have to put my foot in the carb for anything you can't hear yourself think in the cab.
I am running true duals with 2 1/2 inch pipe to the muffs and the stock 302 manifolds. No Cats.
Who's running dumps?
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jclit
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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May 13, 2001 06:35 AM