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  1. KitCarlson

    3D Prints of Hood and Door Bumper Stops with TPU 95A

    I found on Sunday, rubber parts purchased a few years ago got hard and fell apart. My 66 Barracuda sits in garage, and is always ready to go. I took it for a test drive and heard slight unexpected rattles. I purchased black TPU filament with 95A shore hardness to replace a air cleaner to cowl...
  2. KitCarlson

    Using a Scope for Diagnostics

    Scopes give you eyes for trouble shooting. A multi-meter is helpful, but only shows numeric values. Scopes display voltage amplitude on a time scale. Newer scope have automatic measurements, showing voltage, frequency and more. There are knobs that adjust amplitude, and time scale, and trigger...
  3. KitCarlson

    Mopar Electronic Pickup Polarity and Rotor Phase

    Mopar electronic distributors work on the principle of variable reluctance. The distributor pickup is turns of magnet wire around a magnetic core biased by a magnet. When reluctor tooth approaches pickup nub, magnetic flux is pulled away resulting in a negative voltage. The voltage produced is...
  4. KitCarlson

    How to Easily Adjust Timing Curves, in the car with engine running.

    I have developed a direct fire ignition for Mopars. This youtube video is a demo of adjusting mechanical and vacuum advance curves, simply pushing buttons. The user interface is an application written for a $28 RCA Voyager 7" Tablet purchased at my local Walmart.
  5. KitCarlson

    Coil on Plug Ignition System - Test run with datalog

    I have been working on a Coil-On-Plug ignition system for over a year now. I started from scratch, and only have a limited time to work so it has taken a long time. There is a thread here that covers the initial development process. It is long, and not a good read even if you are a technical...
  6. KitCarlson

    Del, are you OK?

    Calling @67Dart273. Del, long time since last post. Hope all is well.
  7. KitCarlson

    Creating Poll?

    I desire forum input for the user interface and feature set, of the Coil-on-Plug Ignition (COP). I went to see if I could make a poll, and have not found a way to do that.
  8. KitCarlson

    A tale of battery cables

    I recently discovered that my battery cables needed help. I was in my low 20's and needed to replace the battery cables around 1980. I took the cables to a farm store and match the length as close as I could with just few inches of excess. I found that is was possible to pull the old starter...
  9. KitCarlson

    Ignition Timing in 3D

    By reading many posts on this form concerning ignition timing, there are many views on the subject. When tuning for performance, some often simplify. An example is to lock the timing advance to 32 degrees. That may work in a limited RPM range, for wide open throttle use, but is not optimal...
  10. KitCarlson

    COP Ignition Development

    I just started working on a coil on plug, or coil near plug ignition system. It will use a modified distributor for timing reference using opto vane sensor and shutter wheel. The sensing method is an improvement compared to a Mopar electronic distributor. I have used an optical system...
  11. KitCarlson

    Shift Indicator using Arduino Nano

    See this post about request for shift light method: http://www.forabodiesonly.com/mopar/showthread.php?t=325823 This post is an example of how to program an Arduino nano for use as a shift light driver. Nano board are inexpensive, a year ago $10, now about $5 each. This post does not cover...
  12. KitCarlson

    A Dissected Ignition Coil

    I have a project where I need core laminations from an ignition coil. I started with a coil I found in my coil box that was leaking oil from the tower. What was inside is worth sharing with pictures. I made a cut around the top rolled edge to open it. It was nearly full of light oil, that...
  13. KitCarlson

    [FOR SALE] Rare VW Aztec 7 Gullwing - $6500

    A rare Fiberfab Aztec 7 kit car. Lamborghini styling at VW price. Four wheel disk brakes, four speed manual transaxle. All mechanical components are new or rebuilt. Excellent handling. Fuel efficient Type1 1.6L EFI engine, easily moves light weight car. Priced at $6,500. Located in...
  14. KitCarlson

    Testing Automotive ECUs

    This post is about bench testing automotive computers used for engine management. Engine management is not just EFI, but includes ignition system, idle control and many other features. What I am showing is based on a system I first developed in 2003 to replace a very primitive D-Jetronic...
  15. KitCarlson

    Good read, on ignition systems

    I found good information on ignition systems at McLaren Electronics. Not trying to sell anything for them, but their article with good rules of thumb on ignition systems parameters, is excellent.
  16. KitCarlson

    Ignition Coil Testing

    When I built my electronic advance ignition, part of the plan was to evaluate ignition coils. I got side tracked when looking at RPM data logs, I discovered that my transmission was starting to slip. So I rebuilt it .... and did not get back to making an ignition coil test setup. There have...
  17. KitCarlson

    DYI Injector Cleaning and Flow Testing

    I am a frugal do it yourself person. I have restored several older fuel injected cars in the past. I have managed good results with the old reliable Bosch style injectors. I have not flow tested, but the vehicles ran very well. The Bosch solenoid injectors were first used by VW Type3 and...
  18. KitCarlson

    Gas gauge calibration unit

    I have read many posts on this forum about fuel gauge problems after replacing the tank fuel sender in our A-Bodies. Some problems are related to mechanical issues of float travel, the instrument voltage regulator, and sender ground. However many have found even after fixing those, the gauge...
  19. KitCarlson

    61 Valiant Toy

    My wife played with this 61 Valiant as a child. Should I restore or keep as is? Needs motor work, paint, front and rear windows, tail light, and hubcap.
  20. KitCarlson

    Early A-Body Windshields, good purchase!

    I was returning home a few days ago heading west at sundown. The wife said, "get a windshield". My original windshield has pits from the original owner driving the desert from CA to NV. I jumped on the opportunity, and went looking, and found a new one like the original, with the tinted top...
  21. KitCarlson

    Distributor Revelations

    I recently purchased a used Mallory Unilite. My motivation is to evaluate what is considered as a quality replacement for the OEM mopar electronic. My picture qualities are less than desired. I started my evaluation by reviewing OEM points distributor specifications found in the FSM for my...
  22. KitCarlson

    DIY Toe-In tool w/pics

    More than 40 years ago I took my Dodge to get an alignment done by well recommend shop. He had the best equipment at the time, yet did the toe-in in a simple way. He jacked each front wheel off the ground, and marked the center with chalk, then used a sharp scribe to make a fine track, at the...
  23. KitCarlson

    Sway Bar Stops Install w/pics

    About 25 years ago I installed an ADCO bar on my early Barracuda. My car had one lower control arm tab, and a second was fabricated and welded on. I tossed the ADCO mounts, fabricated new mounts and installed new poly bushings and end links. At the same time, went to larger 340 T-Bars. I...
  24. KitCarlson

    Heat riser open stop

    I recent noticed that the heat riser in my 273 did not have a stop in the full open position. The bi-metal spring allows over travel, such that the damper would restrict exhaust flow. I fabricated a 3/4" x 1" tab from 10 gauge steel with a 7/16" hole in one end, that bolts to the exhaust...
  25. KitCarlson

    A904 renew w/pics, tools

    About 30 years ago I replaced the A904 on my 66 273 Barracuda with a used unit from another 66. The original transmission had about 145K miles and 12 years of use before me. It slipped with a chatter, in very cold weather going up a steep hill. I lucked on to good transmission at the time...
  26. KitCarlson

    Music City Mopar Meet 9/21-9/23

    I am going to try to go to the cruise on Friday, http://www.musiccitymoparclub.com/MusicCityMoparClub.com_files/023fFlyer0704.pdf
  27. KitCarlson

    More about the $45 ready to run distributor

    Hi, I recently pulled my ebay skipwhite ready to run distributor off my 66 Barracuda 273 ,to install my home built ignition. It had about five months of service and was working well. I wanted to check the timing for reference, for use in the initial tune settings for my unit. To my...
  28. KitCarlson

    Adding Evaporative Controls to 273 2B

    I am tired of smelling gas in the garage after driving. While my 66 Barracuda with Carter BBD runs well, it is time for adding evaporative emissions control. I considered going EFI however my car is very original, the changes required would be significant. The plan is to use a Holley 2280...
  29. KitCarlson

    Dim efi

    My 1966 Barracuda has ran well for the past 34 years. Recently I have found it hard to tolerate the gas smell after driving when parked in the garage. It is too early of a car to have evaporative controls. It also requires a few seconds of cranking to fill the carb after sitting for a couple...
  30. KitCarlson

    DIM Electronic Advance Ignition

    Hi, DIM means : Do It Myself. I have been working a couple weeks on developing an electronic advance distributor. This is done by removing the flyweights, and locking the rotor with a setscrew, and using a micro-controller to adjust the timing, based on a timing reference signal. The...
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