New Exhaust setup on my '66

[BR3W CITY]

I'm now running Hedmann Hustler LS headers in the 66. It was time to fab up a new exhaust, and the choice was a dual 2.5" system with an Hpipe and some new "mufflers". I got some mandrel bends from Columbia Mandrel Bends, some T's and Dynomax Race Bullets from Summit, and a few misc pieces and clamps from the bin and parts store.

Used a jig I made so I could split 180*s in half for S-bends on the chop saw with a diamond wheel. Then started from the collector and worked my way back measuring and laying out each bend. I wanted a symetrical setup which was annoying because the headers have slightly different outputs.

Once we got to the h-pipe I made a few mental decisions on where I wanted to weld vs clamp for ease of assembly and access, then tac'd up those areas, and clamped the others. After that, we hung the mufflers on the existing hangers from my old setup, then build the pipes to mate them up to the H-pipe.

Happy with fit up, we dropped the whole thing and finish welded it. After cooling, we measured corners and widths for square. Our total amount off of square was barely 1/4" (industry standard is .60 compared to my ~.25)
The actual dump/tip needs to be made still, as its a bit of a strange egress to my side-exit holes, and we are debating 2-3 different styles of tip and exit...but haven't settled on one yet.

[Clyde65]

nice job Br3w!

[BR3W CITY]

Thanks Clyde. For a fun comparison, look at the "built in 20 minutes because my tuner wouldn't run it open headers" exhaust that we ran for WAY longer than was ever intended. Fluxcore on 120v and miter-cuts sure don't add up to a pretty piece! SOOOOO glad I built the new setup.

[LowLifeS10]

I like the old one better nah, the new setup looks really nice

[siggyfreud]

Looks awesome! Way more pro than my DIY system . Welds are better too.

[Clyde65]

a man has to do what a man has to do!

[crazy longhorn]

Nice fit ! Do we hear a sound clip coming? Longhorn

[BR3W CITY]

Maaaaaaayyyyybe.

Yea I'll have a clip up soon. I've still got Parts 3 and 4 of the "LSx C10 Mods" video's I've been doing this summer to upload first tho....otherwise I'll be jumping the shark and spoiling all the fun of the buildup to that point.

[crazy longhorn]

I will bet , that you will find a big difference in flow/performance, from the last set Mine was done in the ex shop (my hands on). From the long tube headers, to the muffs, was a straight shot? 50's flows/H pipe just behind the trans cross member. The tails are crush bent, but easy on the angles. When I went with the 5.3, I opted for Hooker street rod shorties & went mandrel bent downs. I see that you used a couple band clamps...I did that also, but just a mention....I like to runs a 1/2 -3 4" weld on the pipes 2 sides before the clamp goes on? This just helps keeps things in place. Let us hear it....Longhorn

[BR3W CITY]

Originally Posted by crazy longhorn

I like to runs a 1/2 -3 4" weld on the pipes 2 sides before the clamp goes on? This just helps keeps things in place. Let us hear it....Longhorn

I considered doing that with the clamp to "center" it. If I had a TIG I'd but a fine ripple on there, but with my MIG I'd end up with with too wide of a weld and casing a problem. I'm actually thinking about replacing that with a v-band because that area supports a little more weight than I planned on, but works well so far.