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Carb swapping my 82 Kjet wagon

Thecarhoarder

New member
Joined
Aug 19, 2023
For a few months now I have been in the process of installing a DGV 32/36 Weber carburetor into my Kjet-powered wagon. And I did the swap. It runs...I want to sort of do a small documentation of how I went about the swap and update as I tune and modify further.

The first thing I did was rip out the Kjet system but retain the wiring harness, I found this was a smart move because some of the sensors are important for retaining the spark and fuel delivery if you're trying to keep the existing system intact.



The kit I bought was the Redline B21/B23 Carb and intake kit and there were some modifications I had to do to get the carb to fit. Mainly had to trim the intake where it meets the thermostat housing and in my particular application, had to remove the two coolant temps sensors and fill the bung holes with plug screws and get those flush. After that installing the intake and the carb is no issue.


From there it's plumbing, I bought an Edelbrock fuel pressure regulator, hooked the fuel lines appropriately to the carb, intake, and return, and removed the fuse to the main fuel pump. You'll be using only the rear fuel pump from here on out. You don't want to over-pressurize the FPR and the Carburetor.

From here assuming your grounds are hooked up From the harness and your throttle position switch from your Kjet is hooked up you should be ready for a first start. (https://www.tiktok.com/t/ZPR7QyL43/ first crank no issues)


I'm still in the testing process now, mine needs jetting and final tuning. I was able to drive it around for a couple of hours until now when I give it more than a parking lot amount of gas it'll stall out and backfire, but that's what this thread is for. I'll update and let y'all know what works for me and what doesn't and I'll take any tips I can as well. https://www.tiktok.com/t/ZPR7Qrr6S/
 
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I’ll update with proper images throughout the week when I can find a proper medium to upload them to.
 
Update: Car is running.

It's been a minute since I've updated on this, but I've finally got the car put together and it's been a journey.

Installing the kit may or may not require some modification, I had to block off some coolant ports (where the temp sensors are located). I had to have the ears where the thermostat is located trimmed a bit to fit. When I test-fitted the intake it was flush and I proceeded to install the gasket and tighten down the intake.

Installing the carb, shown in this picture is important for fitment of the throttle cable, i hilariously flipped it after this image because your idle and mixture screws are on the "back" and I thought that was the front. Your fuel bowl needs to be in the front, there's a science to it, don't ask me how it works, but it's also the only way to get the throttle cable to work properly with the bracket that should have been in the kit. You're just gonna have to get funky with a flat heat to adjust the carb... sorry

Timing:
Get a standalone distributor, don't fight with the junk brainbox Chrysler ignition (mine had that crap). If you can afford a 123 distributior, do that, They have one you can adjust through Bluetooth, but I'm poor so I used this. https://www.ebay.com/itm/1335853789...Ob9uO1KTAW&var=&widget_ver=artemis&media=COPY

Fuel
The Weber carbs are very sensitive to fuel pressure and our Bosch pumps will overpower it and make the carb impossible to tune and deal with. After hours (weeks) of forum hopping through Weber groups anything more than 3PSI of fuel pressure is unmanageable, 2-3/4 is ideal, my car is happy with 1-1/2-2-1/2 PSI. Results may vary based on the car. I replaced the main pump with the lowest rated Edelbrock in the stock location and kept the rear pump to help keep it alive cause too many comments said they're junk on their own. I use a fuel pressure regulator.

Tuning it, results may vary. I started with the typical, screw in the mixture and two out, played with timing until it stopped pinging and readjusted the mixture and idle till it got to a place I was comfortable with. I have not rejetted the car, it probably needs it... I'm prolly not gonna unless it proves extremely necessary because it runs really good as is

Updates soon
 
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