Ford F150 - Welding exhaust tips

Funta · Posted: Mon Jan 28, 2008 5:03 pm Post subject: Welding exhaust tips

I recently put in a lightning style exhaust. the pipes come out in from of the rear wheel. and i have a problem with the tip clanging against the frame. I was wondering if there is a good reason not to just weld the thing to the frame. or do you guys and gals have any other ideas? Thanks

hound_dogs_01 · Posted: Mon Jan 28, 2008 5:33 pm Post subject:

ive heard that it will mess up your eletrical system due to most of your grounds are grounded tot he frame... and and put electricity in your frame causing it to rust prematurely... but i might be wrong lol

Alex

p_ferlow · Posted: Mon Jan 28, 2008 6:31 pm Post subject:

Can't say I ever heard of that. If you do any welding you should disconnect the battery first. No problems then. The negative side of the battery is connected to the chassis. It's not really "ground" as a vehicle floats on rubber tires, the "ground" in your house actually is connected usually to a lightning rod buried in the ground. Hence the reference to "ground". Electricity flows in a loop. You can find more info on electricity here:
http://www.pcguide.com/ref/power/ext/basicsACDC-c.html
http://en.wikipedia.org/wiki/Electricity
http://www.sciencetech.technomuses.ca/english/schoolzone/Info_Electricity.cfm
http://video.google.com/videoplay?docid=5645396659673218353

Just bend the tip down slightly. IMHO you should hang the exhaust with proper rubber hangers similar to OE. The motor mounts aren't solid and the motor twists, so does your exhaust. If you were to weld any portion of it to the frame you'll end up cracking the system, either at the weld area or further up the pipe.

jmorriss · Posted: Mon Jan 28, 2008 6:48 pm Post subject:

Funta · Posted: Mon Jan 28, 2008 6:52 pm Post subject:

So if im not going to weld the exhaust up, then does anyone have any ideas on how to keep the exhaust from bouncing up? I know the hangars will keep it from going down too far. but i have such little clearence i need to keep it from going up. Thanks for the help

jmorriss · Posted: Mon Jan 28, 2008 6:56 pm Post subject:

I have one of the frame hangers tacked to my muffler? and 1 more mounted to one of the pipes that runs out to the tips, shown here, no issues since June:

Funta · Posted: Mon Jan 28, 2008 7:03 pm Post subject:

Ill was thinkin the same thing! I will weld them on in the shop tomorrow. I let you know with some pictures! Thanks for the help

jmorriss · Posted: Mon Jan 28, 2008 7:09 pm Post subject:

You need more of my pictures then:

My free reducer, courtesy of the local muffler shop (going into flowmaster 40 btw)

All welded up:

All done (15degree summit stainless slant tips):

Funta · Posted: Mon Jan 28, 2008 7:17 pm Post subject:

thats the same way i did mine but i didnt use bent tubes i just welded two together at an angle, so my pipes dont come out straight like yours thay are angled back. its just one of my pipes is hiting against the frame and its really annoying so. Ill weld it up to the hangers tomorrow and let you know how it goes. Thanks for all your help!

jmorriss · Posted: Mon Jan 28, 2008 7:18 pm Post subject:

What muffler u using?

matthnatow · Posted: Mon Jan 28, 2008 7:18 pm Post subject:

Just bend them down, and if you do weld them I would only use a MIG welder because the arc will burn right through if you arent sure what you're doing.
_________________

1984 F-250 4x4 7.5L 460
Edelbrock 1406 Carb and Air Cleaner... more to come

2005 F-150 STX 4.6L Supercab
Ranch Hand Grille Gaurd, Custom Headache Rack, Custom Rear Replacement, ReadyLift 2.5" Leveling Kit, Flowmaster Super 40 Dual, Low Glow Neons, Cobra CB w/ Dual FireStik Antennas, 12" Sony xPlod Sub, 1000 Watt Sony xPlod Amp,Panasonic CQ HU, 2 Off-Road Lights, BFGoodrich 285/70 R17

jmorriss · Posted: Mon Jan 28, 2008 7:20 pm Post subject:

Our crappy @$$ HF $90 mig does the job just fine Rockin

Funta · Posted: Mon Jan 28, 2008 7:22 pm Post subject:

The whole thing is already welded together and in the truck except for the hangers, sorry if i didnt make that clear. I went with a flowmaster. It sounds awesome. Im in shop at school and that was a project i did in class. I used the mig for all the welding so far. I had to use it at 15 V to keep it from burning through, even then i had to keep it cool. Im really happy with the project! I just need to get it hung I guess.

jmorriss · Posted: Mon Jan 28, 2008 7:23 pm Post subject:

Finally figured out .mod files so here is a treat:

[img]http://www.supermotors.net/getfile/604331/thumbnail/mov033.mpg[/img]

Funta · Posted: Mon Jan 28, 2008 7:25 pm Post subject:

That sounds really really good. Mine sounds almost the same but it rumbles a little lower