Boosted 318 Demon Build Thread

-

Dirty_Demon

Active Member
Joined
Mar 11, 2015
Messages
26
Reaction score
3
Location
MN
I have a few threads regarding this car with questions about suspension, turbo etc. I was looking for a "Builds" or "Project" area in the forum and couldn't find one so I am choosing the "Forced Induction" section since this car is getting a turbo.

In an effort to help relieve the FABO website of unnecessary bandwidth, I created a very simple photo gallery to document my build. Since I own a web development company it was the natural thing to do. The gallery is located here.

www.dirtylittledemon.com

This is a 1972 Dodge Demon all original with the exception of the slap shifter which I believe came out of a B body. I will be updating build specifics in this thread to avoid annoying multiple threads and will be referencing my photo gallery which is easy to navigate.

Currently there is one "collection" which is called "72 Demon BEFORE" which contains 3 different photo albums. As I start the build I will be adding additional "collections" with specific photo albums based on subject matter. My end goal is to make it easy to navigate and hopefully allow me to put up a TON of images that I can use to ask questions from the knowledgeable people here at FABO as well as help others.

Plans for the car.

Engine:
318 Magnum out of a 1998 Dodge Dakota.
Turbo
forged pistons
cast crank
main studs and head studs
Hughes Engines intake and cam
MSD dizzy locked out
Timing and fuel controlled via Megasquirt III
Heads are undecided. I need to see what "funds" will allow.
Compression will be around 8.5:1 or 9:1 at the most.
Stock stroke. Please refrain from unwanted "suggestions" or judgements regarding using a stock 318 stroke instead of adding a 4" stroke. The reason is simple. Longer stroke means more stress on the rods and crank.
I will also be sending bearings, crank, pistons, rods and anything else I can to competitiveedgecoatings.com in CT to be dry lube coated. The extra layer of lubricant on the crank and main bearings will help with the heat. It will also help get the oil to "fall" back into the back quicker.

Suspension:

HDK.. i looked at all the competition and even called most of them. Most were helpful but HDK or "HemiDenny" was by far the most helpful. He did not once try to sell me his product. Instead he just asked what I wanted to do with the car and make suggestions and educated me on things I was going to need to deal with. Putting a HDK front end on my car is just a no brainer.

First thing I am going to do is pull the interior, empty the trunk, remove the wiring and bumpers then fab up a rotisserie. I'll document all that on here and in the photo gallery.

Initial conditions of the car:

Original paint ( Petty Blue )
was a /6 car with a 904. I bought the car without the engine and tranny.
looks like the passenger front "bumped" something low. Bumper is "slightly" angled in on that side, the bottom of the front fender is pushed in a little and the fender support is slightly bent. From the top all the lines are straight and there is no "wrinkling" in the frame or anywhere else.

The roof is clean. No dents or dings.
The trunk is clean. No dents or dings.
Hood is also clean ..
Driver front fender looks to have at in the sun. Initial thought was poor bondo repair job but after inspection it appears the original paint/skim coat from the factory just cracked from sitting in the sun
bottom of both doors are perfect
passenger rocker is dented and has a rot hole. Replace rocker
Front valance is dented in.. not sure if that can be salvaged. I hope it can be.
Driver front fender has a little rot at the rear bottom. i think a patch panel can make that front fender good as new
driver rear quarter has the standard rot on the rear bottom.Patch panel and inner trunk connectors and should be good as new.
driver frame rail is rotted.... won't replace.. just going to cut out the rot and repair. I plan on stiffening the frame so no need to replace it. will be stronger when I am done anyways.
driver floor rotted out. It appears that the car sat with the driver window down and water got in the driver side , rotted out the floor then dripped down and rotted the drivers frame. Too much of a coincidence that the worst rot is in the same area.

Small dents and dings. Some are on places that I am uncomfortable beating with a hammer so I might have to bring the car to lcars.com and have them handle the more sensitive areas. An example is a dent on the top line of the driver rear quarter. For an old car it has the normal wear and tear as far as dings go. Nothing major

Has all the glass

dash looks brand new. I have all the parts. The previous owner wanted to put a slap shifter on it.. Shitty weld job. I will be removing it. Half the pieces are missing anyways.

Rear seat looks brand new.. like nobody ever sat in it.. absolutely amazing. Front seats appear to be attacked by a tiger.

All in all the car is in great shape for a project. I can't wait to get started. Enjoy the pics.
 
Looks like a great start! I have a 72 Demon myself, that I am considering doing something similar with. I look forward to your posts.
 
Update. I have been accumulating parts and building a damn storage shed in the back because my garage is becoming cluttered with crap. I will be putting up more images of all the parts tonight or tomorrow. Including the engine, rear end, turbo, crank etc..

I also decided to convert the car over to a 4 speed. I have a post about the specific involved in putting a 4 speed up to a magnum engine with fuel injection. Simple recap is if you want to use a fuel injected magnum engine with a 4 speed then you need to buy this part from Modern Driveline. MD-LBS 130-5.2L . This is a 130 tooth billet steel fly wheel with the marks for the crank sensor machined in. To my knowledge is the ONLY one of its kind to allow such a conversion. They sell if for $480 and as of the date of this post they have 2 left and won't be making more any time soon.

I have a line on a complete a833 but waiting to find out what it came out of. I may just take it even if it didn't come out of an A body. I have to find out if I can put a B body a833 into an A body. Anybody know or done it?

Mopars in The park is coming up in a little over a month so hopefully I can get the zlinkage and pedals I need there. if not I could always mortgage my kid and get them from Brewers performance. My fingers are crossed this is the right tranny.

If you live near or in Minnesota and have a a833 for an A body then send me a PM.. i'm in the market, not afraid to drive out and get it. Just ask tblotske, I drove to Fargo North Dakota to meet him for some parts he cut me a great deal on.
 
First.. there are images.. try reading.. it would do you some good. If you actually read instead of scrolling down looking for pictures then you would see I have an external photo gallery which at the moment has 191 images . I explained that already in this build thread. By having an external gallery I can put up MORE images. Can you imagine 191 images on here?

Now my update....

Purchased an MAS fiberglass 6pack hood from Rich. He was the old owner of MAS. Very nice guy. I know that knock on MAS hoods is the quality and the fit or something but honestly I have spent more on dumber stuff. I bought the hood for $200 and it's never been installed. It was just sitting in his warehouse. I removed my stock hood so I could do a "test fit" and set the hood down on the car. To do that I had to remove the hood hinges.. Oh boy... here is where you DON'T believe everything you read. I did a bit of research on here and other places and saw everything from having to pull my fenders to get to the hinges to having to pull the fenders and the doors to get to them. This is why people should not speak. The truth is I removed.. yes REMOVED my hinges in less than 20 minutes by doing the following.

First. I just removed the dust shields from the inner fender. They are plastic pieces that prevent crud from getting up between the fender and the body. In my case it was a nice place for crud to build up. It takes 5 minutes to remove the dust shields. Once you remove the dust shields you then look up and you see the hinge is mounted by two pins with what looks like a star lock washer for lack of a better description. Just use a long screwdriver or a small pry bar and wedge that star lock washer thingy out a little. It will stop on a groove but that is fine. Once you wedge it out a little, reach up with a pair of dykes and cut it... then yank it down. DONE.. seriously .. easy. My doors and fenders are still on the car. The top one is a little harder to reach and in my case the driver side and a ton of insulation or seam sealer around it but it wasn't hard. Once the hinges were off I could place the hood on the car. I also read that some people just undo one side of the hinge and let if fall down and secure it.. you can do that but why? potential problems. Here are pics of the hood test fit on the car. The rubber pieces are still on the edges so the hood didn't sit perfect but you get the idea. The fit looks excellent and it has nice rolled edges. If I wreck it then so what.. it was only $200.00

http://www.dirtylittledemon.com/photo_gallery/?level=album&id=57

here are pics of the hinges, dust shields and tools i used to remove them.

http://www.dirtylittledemon.com/photo_gallery/?level=album&id=59

I have also been accumulating parts from various sources. I have a a833 transmission that is NOT a 4 speed. It is in fact a 3 speed with OD.. didn't know that at the time i bought it but really glad that I was educated on it. An oldler gentleman that collects mopar stuff came by my house and was educating me on stuff I had. My a833 is in fact a cast iron case 3 speed with overdrive which gives it a tiny 4th gear but a tall first gear. 2nd to 3rd and 3rd to 4th are long which is a good thing since turbo motors like to lug. This info is great to know so I make sure I get the proper linkage. The person I bought if from didn't know what he had and had the dog ear upside down on the case for the shifter linkage. Pics of the transmission

http://www.dirtylittledemon.com/photo_gallery/?level=album&id=58

I also picked up 4 speed pedal assembly for an abody. They are in good condition but I need to clean them up and change the busings.

http://www.dirtylittledemon.com/photo_gallery/?level=album&id=60

Next i got a Hurst abody shifter for my a833.. this shifter is is amazing condition. Put it on a vice and tried it out. nice tight shifts.. finally something that don't need to be rebuilt.

http://www.dirtylittledemon.com/photo_gallery/?level=album&id=62

I also put up pics of the turbo.

http://www.dirtylittledemon.com/photo_gallery/?level=album&id=63

Now for some fun stuff. I had planned to use this 5.2 out of a 98 dakota that I knew ran but had 200K on it... I decided to pull the heads off the engine so I could do the following:
1. remove the pushrods so all the valves close and the engine is sealed up when I put it back together. I know I can just loosen the rockers but why.. got the heads off anyways
2. Check the cylinders.. it would REALLY suck if the cylinders were scored up or had a lot of wear ...
3. if all was well coat everything liberally, turn it over by hand a few times and seal it up for when I am ready to do the machine work.

The end result is the cylinders were BEAUTIFUL.. i really love 318s.. seriously .. they take a beating.. I could still see crosshatch on the walls. I THINK but not 100% that I MIGHT be able to get away without boring over. That would be preferred. More meat between the cylinders but I am not a machinist so I don't know. I do know there is no rust, no scoring so if any boring is needed it will be minimal. Hopefully just need to hone it out. I coated everything up with wd40 specialist long term rust inhibitor..Yup. got pics.

http://www.dirtylittledemon.com/photo_gallery/?level=album&id=65

The next thing I did was remove the AC compressor and power steering pump from the 5.2 magnum.. Since you can't go into Napa and ask for a belt for a 98 dakota with no ac and no power steering I had to be a bit creative here. The first attempt was just running a belt with what was there. This did not work because the only belts available from Napa were way too small or a few inches too long.. it was like 51.5 if I remember correctly. image of initial idea.

http://www.dirtylittledemon.com/photo_gallery/?level=picture&id=553

That didn't work so I tried using the top smooth pulley. That "worked" but it had the potential of slipping off.. never good to have two smooth pulleys inline together.

http://www.dirtylittledemon.com/photo_gallery/?level=picture&id=554

Then I had an idea.. First I removed the pulley from the tensioner. I was going to get a new tensioner anyways so why not try. I then swapped the top most smooth pulley with the tensioner pulley. the bearing diameter is a little different so I had to purchase a 10mm bushing from Napa ... it worked like a charm. Once I saw that would work I purchased a new tensioner, a new separate tensioner pulley and bolted everything in place. The dust shield for the original smooth pulley is a little big and slightly rubs the inner part of the tensioner pulley so I used a very thing washer to space it out. I then use a 6 rib belt from napa to get the right size. Once I got the size figured out I had to order a 7 rib belt. Conveniently that belt ONLY came in an HD version. No problem there. I have no pic of the new setup as of typing this but by the end of the day today I will .. the belt comes in today. The Napa part numbers for this conversion are as follows

25070529HD = Gates Belt
38116 = Drive belt tensioner assembly
91051-15 = 10mm bushing sleeve thingy.
38016 = tensioner pulley.. JUST the pulley.

that's it.. for now.
 
First.. there are images.. try reading.. it would do you some good. If you actually read instead of scrolling down looking for pictures then you would see I have an external photo gallery which at the moment has 191 images . I explained that already in this build thread. By having an external gallery I can put up MORE images. Can you imagine 191 images on here?


I see. and i appologize. I also think youd get more response if there were some photos in the page. What alot of people do is they scroll through and look at the pictures and if something catches theyre eye then they will be interested and read what is written.. just my opinion.

either way cool build, glad to see other people building boosted mopars..
 
No apologies necessary. I am not really looking for "comments" so to speak. Compliments are always nice but I'm building this thing they way I am building it for me. I do value the knowledge and experience from others but unfortunately like ALL forums you have to sift through the poop to find it. My primary goal of this build thread is to share the knowledge and things I am learning as I tackle the build. A perfect example would be look up how to remove hood hinges. You would be amazed by the really bad information out there.

Quick update.. my belt didn't come in.. damn it... won't be here till next week sometime because it's coming ups from Georgia. ( directly from gates since Napa don't carry that belt )

Since I don't have the belt I just took a picture and drew a belt on it.

http://www.dirtylittledemon.com/photo_gallery/?level=picture&id=555
 
What are you going to use for exhaust iron manifolds build a turbo header.
 
-
Back
Top