Madaguy 1955 Nomad Build

I just googled for "gm transmission cooler hard line clip" and it looks like there are some possible options there. If you have access to a u-pull-it type junkyard you could probably cruise around and find some clips - most "modern" full-size or even mid-size pick-ups and SUVs use trans coolers. Some random samples from the googles...
https://parts.gmparts.com/product/gm...-clip-11603472
https://parts.gmparts.com/product/gm...-clip-11602647
https://www.partsgeek.com/j4st9vy-ch...line-clip.html
https://www.ford.com/product/clip-p4000058969
Not all of those say what size pipe they're supposed to clip onto, but hopefully that gives you some ideas. I had bent new brake hard lines on my Fox Mustang and those little Subaru clips really helped clean up the look by helping to keep the lines running parallel to each other rather than everything being slightly misaligned.



I still need to tidy up the wiring, but the dryer is installed and the lines are blocked off so no debris will get inside until I'm ready to install the AC lines. I love how nicely it tucks down low and out of the way.

I had a heck of a time getting the rear two intercooler bolts on the back side of the intake tightened. I ended up having to make a tool in order to get them tightened. I had a spare wrench, so it went under a little surgery to make what I needed. Worked great and I could use another wrench to get more leverage to fully tighten it down.

Since I needed to order a new tube sleeve for the transmission cooler lines anyway, I opted to order a new roll of Aluminum lines and re-make the one cooler line. I went back and forth on redoing it because the lines are a pain to install, but I decided to go for it. I accidently made the 90* bend the wrong way when and attempted to twist the line, but it started to kink. Once the new parts arrived, I got to work replicating the first line. It wasn't bad at all since I had a really nice template.


Since the aluminum is so soft, it can kink really easily. I found an easy way to bend it almost straight is to hold it on a flat surface and roll it out holding the one side straight. It gets the line 95% straight, and then you can make careful little tweaks to get it the rest of the way.


I didn't take more pictures since it was redundant, but the new line is completely finished and looks (and likely performs) way better than it did. Now that is done, I was able to reinstall the grill. Glad more pieces are going back on.

The heat exchanger hoses that I bought two weeks ago finally were delivered, so that I can start to finish plumbing for the air to water intercooler system. I started at this lower hose. It fits just like I wanted to and looks great. The transmission cooler lines are also there and am very happy with how symmetrical they look.

Here's the box of Dayco 80418 hoses. They are 3/4" with a tight 90* on one end and 60" of hose on the other. I know a lot of guys use these for the "LS Swap" heater hoses, but this also worked great for this application.

I had bought a cheap bead roller for charge pipes online, but it ended up being junk which is no surprise. The guy that welded my intake said he had a bead roller and I was able to trim up the pipe and take it over to him this weekend. Looks great and is now ready for a BOV flange!

Here's where the BOV is going to live. I'm going to trim up the coupler a little bit once the flange is welded in place, then it will get bolted down.

I'm really glad that I planned ahead for this turbo build several years ago when I was first putting the car together. Before I installed the oil pan for good, I drilled and tapped it for my turbo drain. I used a 1/2" NPT, so all I had to do was pull the plug and replace with my fitting. Love an easy job!


Built and installed the drain line as well. That was very straightforward as well.

The list is starting to get quite small now. It won't be long now until I can see if all this work paid off!

Last big things are reinstalling the radiator, building a mount for the catch can, mounting the HX, finish plumbing HX, and a few misc. hoses and wiring. I can't wait.
Cheers,
Ryan



After that was all done it was time to get the pipe installed and bolted down for good.

I built a new bracket for the catch can and switched over to mild steel this time. I was going along pretty good, then I think I built up too much heat and it started to glob up at the end of the weld. Plenty strong though.


This is when I stopped getting as many pictures because I was just trying to grind out the work. My dad also stopped by this weekend for a visit and he helped me with some small things and verify fitment. We mounted the coolant swirl pot for the intercooler and I was able to get all of the lines routed nice and neatly. You can also see the finished catch can routing.


One of the last things that I needed to do was cut a hole for the CAI. There are many ways that I could have routed this, but I liked the clean look of routing it through the inner fender and having the filter in front of the tire.


Now after a little test fitting it became clear that I need an additional pipe to route the filter a little differently, but overall very pleased with the fitment of everything. I ordered it and that should be here soon. This was after the first test fit. I was able to loosen the pipe and reclock it higher which gained me another inch, but still would contact the tire at around 3/4 of the wheel turned. Good enough for an initial test drive!!

At this point, I had waited long enough and just wanted to see if this thing would actually run/drive and build boost! The one last thing that I needed to do before I could shut the hood was to drill out the rivets for the hood baffle. With the center mounted radiator, that baffle was contacting the radiator. For now, I just drilled them out which allowed for the hood to shut. One thing that I didn't get a chance to do was wire up the heat exchanger coolant pump, so for now I was effectively running it without an intercooler, but I just had to hear it run and drive it down the road again.

I had my dad help to prime the oil system and make sure there was oil feeding the turbo before I fired it up for the first time in 2026. Cranked with no fire... Hmmm... checked everything and ended up leaving the TB unplugged. Plugged that back in and it immediately fired right up! I let it run for a minute or two to check for leaks. Not one leak!! At this point I left off the full exhaust because I wanted to confirm there were no leaks with the new transmission lines. I quickly installed the rest of the exhaust and then lowered it back down onto the ground and backed it out of the driveway again. That felt amazing.

I let it run up to temperature and I had also tripped the breaker for the cooling fans at some point. Once that was reset, the fans kicked on and the temps stabilized. Then my Dad, my youngest son and I drove it up and down the road maybe 3 miles round trip. Everything felt great, and best of all the car built some boost! The coolest part for me was when I let off the throttle and the BOV made that whoosh sound. Such a cool sound! We brought it back and then let it all cool off. I took out the car again yesterday this time with just my Dad and I was able to really get on it. We made a few WOT pulls and the car performed great. It definitely feels more powerful, but I'd still like more. I left the 8 psi springs in that came installed from Summit. When I reviewed the datalog, it looked like the most boost it saw was 135 kpa or ~5psi. I think what I'll do is swap out the springs for the 17psi combination of springs which will hopefully net more like 10-12psi where I'm targeting. I couldn't be happier with the car overall and it's also quieter at cruising speeds which is a nice fringe benefit. The older I get the quieter I'm liking the cars haha. One thing I also thought was really cool is that even without the intercooler hooked up the highest the IAT's saw was 140 and it was about 85* yesterday so it was a pretty good stress test.
Here are some nearly final engine bay pictures. Once everything burns off with the heat wrap, turbo and whatnot, I'll install the turbo blanket. I think that will help keep things much cooler in the engine compartment.


Cheers,
Ryan
The Best V8 Stories One Small Block at Time
For your intercooler hoses, consider trying out these clamps, they are cheap and look way neater than zip ties
And agreed, BOV noises are the most fun part of cruising around with a turbo setup.

Since I had modified the air filter housing for a fitting to allow fresh filtered air for the PCV, I had to add a fitting to the new tube. Gave me another opportunity to do some AC TIG welding. I cut a little square piece of thick aluminum and bent a slight curve into it to match the curve of the 4" intake tube. Cleaned everything with a wire brush (only used for Aluminum) and acetone. Then I got to work welding it.



With that modified, I could now reinstall the intake tube and rotate the air filter up where I wanted it. It fits really well and now I have 3-4" of clearance with a jack under the a-arm and the wheel at full lock. No issues with it contacting now.


Now I can drive the car without needing to worry about the filter coming off. Next is trying to figure out why the 8.3 psi spring was only building 5.5 psi of boost. I figured that backpressure may be an issue, so I decided to try the 16.8psi combination of springs to hopefully net me around 11psi if the math was the same. 11psi is my target as I'd like to net around 500 rwhp.


I swapped out the springs and took the car for another test drive. The car was definitely making more power, but after checking the logs it maxed out around 156 kpa which is about 8psi boost. Closer, but I think there may be another issue that is causing the low boost. I was leaning towards backpressure being an issue, but after talking with some buddies, it may be something else. I'm going to make some changes and do more testing. I have the first car show of the year this weekend so I'll get the car out again to see if I can get the boost numbers closer to the wastegate numbers. I also ordered some fittings so that I can finish wiring up a dial and control the boost with Holley.
Cheers,
Ryan


Then the next day I thought it would be great to take the car out to get some icecream, but the car was running very rough. Then shortly after I smelled fuel and when I lifted the hood there was fuel misting out of the turbo vband area. I shut it off immediately and then pushed it back in the garage. After spending the next week troubleshooting, chasing wires, using the Holley Diagnostic tool, and etc the only thing that I could determine is that there was a faulty spark plug wire on cylinder #6. I spent a lot of time but didn't find anything really conclusive. I swapped the wire out for another one I had and it runs fine. I'm definitely going to keep an eye on it though until it earns my trust again. Very strange. I ended up ordering a set of new MSD wires just to be on the safe side.
In the process of troubleshooting I pulled all the plugs and determined that I need to lean it out a bit and could add some more timing.

I also discovered in the process that that the downpipe had shifted slightly after a few heat cycles and I need to cut and replace the vband off the turbo. I didn't realize that there were so many different size vbands, but the one that I used was too small for the turbo which is I think why it shifted in the first place. I'll expand on that later, but that brings me up to last weekend where I attended one of my favorite events of the year; Spring Carlisle. Pictures to come soon.
Cheers,
Ryan

There seem to be an increasing amount of "patina cars" at these shows. Loved this truck and wheels.

Saw a 55 Nomad for sale at the show. The color caught my attention.

I was walking through the Blueprint booth and noticed a familiar face. Lou Santiago from many car shows that I watched growing up! I stopped and talked with him for a good 15 minutes which was really cool. He was there to talk with high school age hot rodders about getting into the industry. Great hearing some of his stories too. I couldn't help but ask for a picture.

Then while I was at the Blueprint booth, this LS and 8HP70 setup really caught my eye. They currently only offer this setup as a complete package with engine/trans/hareness/ECU, but I'm sure as time goes on they will offer it as a transmission only package. They couldn't get into the details on the ECU, only that it was proprietary. Although it sounded like it could be modified using HP Tuners, so it must be based on an OEM setup. It's way out of my pricerange, but all things considered for a $20k drop in engine/trans setup with a warranty that is a good price point.


I also met a friend that I met on a TriFive forum. He was traveling here with a friend from Sweden, and we got a chance meet and catch up in person. Was great meeting him and seeing what parts they picked up. Hard to see, but there was a nice 1957 hardtop project behind us which is very appropriate since he is also restoring a 1955 Nomad.

I picked up a few parts to save on shipping, but didn't have a huge haul this year. My best deal were finding 3 complete LS coil packs in someone's $1 bin! I didn't even talk them down haha.

I also picked up a fan shroud from Auto City Classics, 1955 Belair Accessory Bumper guard and a new hood baffle since the one I have is quite rusty. Bummer I'll be cutting it up, but it's not original so I'm not too concerned. One piece I was pretty excited about is the BelAir trim steering wheel. It is in good driver shape and is much more fitting for the Nomad. Before and after shots with the old 210 steering wheel.



The last thing that I picked up was a 1955 Nomad Bluetooth speaker. It's goofy, but I like it.

What I didn't expect was how my kids reacted. They insisted that we make it look just like my car, so I let them. I was shocked at how closely it resembles my car!


They even nailed the rusty roof!

Overall was another successful swap meet haul. I'll post up some pictures of the car with the new accessory bumper soon. I really like how it changes the look of the front end.
Cheers,
Ryan
Cool shot of the new accessory bumper! The guy said it was NOS, but had been sitting for so long it had some chrome chipped. Not sure I believe that, but I knocked his price down significantly so I was happy.


One last thing that I forgot to mention was that when I met with Carl at the Spring Show that he gave me a decal for his car club in Sweden! So nice and I can't wait to stick it in the car.

Next up was a bit of a bummer for me as I didn't want to do the work, but it was necessary. The vband flange that I used originally when I put the car together started leaking. I believe after a few heat cycles it may have shifted. After doing some more research online, I realized that I used the wrong size. The OD of the vband flanges need to match or be very close to get the best seal. When I pulled off the charge pipe and remeasured the flanges that I have are the more standard 3.580" OD, where the turbo I have measured at 3.725". Also the flange I used was meant to be a male/female connection so it had a small sealing surface area.
Old flange:

After searching all over the internet for the "right flange", the best I could find was a SS version on eBay with a 3.75" OD flange which is much closer and I can turn it down with my lathe.

Once I received the new flange, I chucked it up and turned off the 0.025" so that they flanges match. Used my dial indicator to be sure the flange is flush with little runout.

I checked the flange several times and test fit with the turbo flange a few times. Once I was happy it was time to cut off the old flange and weld on the new one. I didn't take many pictures because I just wanted to get this done. I attempted to weld the flange on the car, but soon realized it was too much of a challenge with the TIG torch and foot pedal. I ended up just pulling off the manifold and turbo in one piece and put it on my welding table.


I was able to get about 3/4 of the way around the flange unobstructed, but the last 1/4 was a real pain. I ended up welding in many different positions, welded left handed (I'm normally right handed), tons of tungsten stick out then finally made it all the way around. My older welds were a little prettier, but these are solid and the job is done. I also had to re-wrap some of my heat wrap, which was annoying, but I didn't get a picture after it was finished. The one here is right after I finished welding.

I got it all installed and tightened back down and no leaks! I took the car out for a quick rip around the block. Still makes 8psi and once the new exhaust wrap burned off it was back to normal. While it was off I also installed a new set of MSD spark plug wires. Glad that it's back together and running great again. I grabbed this shot in the driveway. One of my new favorites.

This past weekend I found myself with a free morning and realized it was a Cars and Coffee morning, so I bribed the boys with some Dunkin breakfast sandwiches and we headed out. It's about 40 miles round trip and the car ran great. I had to take some time to reflect as I was driving it just how much work I've done over the last few years. The front suspension feels great with the sway bar and dialed alignment. Engine/trans/rear end all work so nicely together and just cruise 65-70 on the highway so smoothly. After I got home there were a few photos posted on the FB group so I grabbed them. One of my older son is really cool with his mullet between the two patina cars at the show.



Love this photo.

I had a great time and talked with a lot of cool people. One of the best things that happened was when we were walking around looking at the other cars and I noticed a really nice Lamborghini. I said it to both of my boys and my older son freaked out a little and then my younger son (6 yo) says "Oh wow, did you see there's an old Jeep too!" :-P
Thanks,
Ryan








