Why just fix the leak when you can eliminate the choke points?

Discussion on fuel delivery & intake/exhaust tech & mods.
CapriceX2
Posts: 68
Joined: Sat Jun 22, 2019 3:06 pm

Re: Why just fix the leak when you can eliminate the choke points?

Post by CapriceX2 » Thu Jan 07, 2021 3:30 am

I haven’t been very motivated to work on this project so it is going pretty slow. Keeping busy with some other things that I’ve been wanting to get done like changing out a bad TPMS sensor last night.
I have cut a little stainless and will load a few pics.
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CapriceX2
2011 Caprice 9C3 - TSP 220R W/ DOD delete, 10.8:1 Compression, Custom Stainless Exhaust
1995 Caprice Classic Wagon
1996 K2500 6.5L diesel

CapriceX2
Posts: 68
Joined: Sat Jun 22, 2019 3:06 pm

Re: Why just fix the leak when you can eliminate the choke points?

Post by CapriceX2 » Tue Jan 19, 2021 5:16 pm

I worked on this for several hours yesterday with VERY slow progress. Currently regretting my decision to go this route, but not enough to change direction.

Here are a few photos of where it is sitting now. There is a shot of the 3” pipes from the front and rear. Also the front plate of the new chamber with the double wall. I’ll be packing the gap between the walls with mineral wool.

I intend to make a little more progress this evening.
Attachments
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CapriceX2
2011 Caprice 9C3 - TSP 220R W/ DOD delete, 10.8:1 Compression, Custom Stainless Exhaust
1995 Caprice Classic Wagon
1996 K2500 6.5L diesel

CapriceX2
Posts: 68
Joined: Sat Jun 22, 2019 3:06 pm

Re: Why just fix the leak when you can eliminate the choke points?

Post by CapriceX2 » Wed Jan 20, 2021 1:24 pm

Progress was much better last night. I cut out a top and side plate for the inner chamber before supper and went back out after supper to tack them in place.
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That went so well that I welded up the seams 100%.
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And THAT went so well that I cut the other side plate and welded it in place.
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Weld quality with the heavier sheet is SOOO much better.
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Last night went so well that I now have a little motivation back for this project.
CapriceX2
2011 Caprice 9C3 - TSP 220R W/ DOD delete, 10.8:1 Compression, Custom Stainless Exhaust
1995 Caprice Classic Wagon
1996 K2500 6.5L diesel

CapriceX2
Posts: 68
Joined: Sat Jun 22, 2019 3:06 pm

Re: Why just fix the leak when you can eliminate the choke points?

Post by CapriceX2 » Thu Jan 21, 2021 12:44 pm

I put in a stiffener across the side plates to try to prevent any vibration.
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Then I added a stiffener from top to bottom.
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I drilled a hole in the bottom plate before welding it in so that I could plug weld it to the stiffener.
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The progress last night wasn’t as good as the night before but still ok.
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Next I’ll be test fitting it again to make sure everything still looks good and cutting the holes in the outlet end plate.
CapriceX2
2011 Caprice 9C3 - TSP 220R W/ DOD delete, 10.8:1 Compression, Custom Stainless Exhaust
1995 Caprice Classic Wagon
1996 K2500 6.5L diesel

xcidmigs
Posts: 772
Joined: Sat Feb 14, 2015 2:12 am
Location: SE PA

Re: Why just fix the leak when you can eliminate the choke points?

Post by xcidmigs » Fri Jan 22, 2021 11:02 pm

This is like watching someone invent the wheel.....

CapriceX2
Posts: 68
Joined: Sat Jun 22, 2019 3:06 pm

Re: Why just fix the leak when you can eliminate the choke points?

Post by CapriceX2 » Sat Jan 23, 2021 4:08 am

xcidmigs wrote:
Fri Jan 22, 2021 11:02 pm
This is like watching someone invent the wheel.....
Is that better or worse than watching paint dry?? :lol:
CapriceX2
2011 Caprice 9C3 - TSP 220R W/ DOD delete, 10.8:1 Compression, Custom Stainless Exhaust
1995 Caprice Classic Wagon
1996 K2500 6.5L diesel

Turbopowered68
Posts: 81
Joined: Thu Nov 05, 2020 1:09 am

Re: Why just fix the leak when you can eliminate the choke points?

Post by Turbopowered68 » Sat Jan 23, 2021 2:15 pm

CapriceX2 wrote:
Sat Jan 23, 2021 4:08 am
Is that better or worse than watching paint dry?? :lol:
Better than
now get back to work.
2014 Caprice V8
Elgin E-1840 P, LS9 Head gasket, LS7 Lifters, trunion upgrade
Single roller timing set, Melling oil pump
1986 GN Roller cam, HR Rockers, Bigger turbo, XFI, E85, Front mount IC, Built trans, 3.42 gears.
1968 Chevelle LQ4, 4L80, 12 bolt w/3.42 gears

CapriceX2
Posts: 68
Joined: Sat Jun 22, 2019 3:06 pm

Re: Why just fix the leak when you can eliminate the choke points?

Post by CapriceX2 » Sat Jan 23, 2021 9:03 pm

Turbopowered68 wrote:
Sat Jan 23, 2021 2:15 pm
now get back to work.
Yes, sir!

Made some progress this morning. I slipped the end plate of the outside shell back on to help verify clearance as I did a test fit.
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Then I taped the plate in place at the other end so that I didn’t have to try to hold it as I marked the pipe location.
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I put a plywood spacer on top to maintain clearance to the tunnel and raised it into position with the floor jack.
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Holding a scrap of 2.5” pipe in place, I marked the location on the end plate.
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And cut the holes in the end plates.
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I’m headed back out to the shop now to clean up those holes and start welding. I would really like to have this chamber all assembled by the end of the day.
CapriceX2
2011 Caprice 9C3 - TSP 220R W/ DOD delete, 10.8:1 Compression, Custom Stainless Exhaust
1995 Caprice Classic Wagon
1996 K2500 6.5L diesel

CapriceX2
Posts: 68
Joined: Sat Jun 22, 2019 3:06 pm

Re: Why just fix the leak when you can eliminate the choke points?

Post by CapriceX2 » Sun Jan 24, 2021 9:51 pm

I put a bell mouth on the outlet pipes for a smoother transition into them. Then welded them into the inner end plate. The outer end plate is just slipped on in this photo for test fitting.
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After welding the end plate in, I cut a piece of mineral wool insulation to go between the walls. Here are the parts layer out.
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The insulation slid into place.
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And the outer end plate tacked on.
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CapriceX2
2011 Caprice 9C3 - TSP 220R W/ DOD delete, 10.8:1 Compression, Custom Stainless Exhaust
1995 Caprice Classic Wagon
1996 K2500 6.5L diesel

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