Atomic4 Testimonial Page
Upgrade Kits:
Ignition Retrofit Kit
"Hello Tom, I was working on a 33' C&C Sailboat, 1974 Universal Atomic 4. Access was ok, I had to remove the ladder and sink to gain access to the engine compartment. The engine is positioned with the number 4 cylinder closest to the access. The instruction were clear and easy to follow. I did NOT remove the distributer from the engine. I found there was plenty of room to do the conversion. I did take the cams out to remove the rust and to clean the interior of the distributer. I did a complete tune up, plugs, cap, rotor, coil and wires. I saved the used parts as spares, I did an ohm check on the wires and coil. The measurements were within specs. I did have issues with the spark plugs, the originals were Champion J6C. I'm surprised the engine would even run. The spark plugs I received from Moyer Marine were Autolite 98. So I thought. I questioned the plug VIA a Google search. Google said the 98s would be a no go! So I scrambled looking for some Champion J8C. Found 4 from 3 diffe rent auto parts stores. Come to find out later the Autolites were 86s and NOT 98s, my friend read the number upside down. Installed the J8C and the engine fired right up. The owner said it never ran so good. No spitting or sputtering. Doesn't smoke and it idles at 600 RPMs. I have since been informed that because he sails Lake Superior, that he should use a resistor plug with a higher heat range. So in closing I will be installing the recently purchased RJ12C plugs gapped to .40", tomorrow! Lake Superior water runs about 45 degrees in the summer, warmer in the bays. But I thank you again for a great product. Regards." Nicholas Howard, C&C 33 - XR-i Electronic Ignition - New Richmond, WI- 2026
"Tom, I just wanted to let you know I got the electronic ignition installed today on my atomic 4 engine and it worked perfectly. I cannot thank you enough for the detailed instructions. It made the job much easier than it should have been. You can definitely count me among your satisfied customers, and as I continue working on my boat I very well may be interested in some more of your products." Des Stevens, New Horizon 26 - Prestolite Ignition, Rushville, IN - 2020
"Thank you Tom! I appreciate the quick response and personal attention that you gave to me over a small order! The parts arrived overnight, and I was able to quickly install the new electronic ignition in under an hour. The boat started right up and ran great. I can't tell the difference between this EI and my old Pertronix EI, but I am more than happy knowing my ignition won't burn out when I inadvertently leave the ignition switch on. Again top notch help, and a very easy to install ignition system. Thank you" Jim Homet, Tartan 30 Ignition, Portsmouth, NH - 2020
"The system (electronic ignition) is working great. My atomic 4 runs better than it has for as long as I can remember. I intend to change to your electric fuel system also in the near future, and probably to the fresh water system also."David Mize, Tustin, CA
"Tom, I've been running the motor and am amazed at how well this system has dealt with the smell. Not only that, but the motor is running so much better than before - I couldn't get it to idle low previously, now it's idling so low you can barely hear it running! I must have had a vacuum leak somewhere in the system that this has solved. Amazing product. Thanks Tom." Nick Allinson, Alberg 30 - Crankcase Vent System - Kingston, ON - 2022
"This is a shout-out for outstanding customer service from Tom Stevens at Indigo Electronics, a purveyor of aftermarket accessories for the venerable Atomic Four. Last fall I purchased an improved cooling circulation pump from Tom, but hadn't yet installed it. Recently Tom emailed me to say that he had become concerned that my pump might be part of a bad batch and could have a potential reliability concern; and could I please return the pump to him to test? I did, and it checked out fine, and when he promptly returned it to me he had even upgraded some of the hardware, all at his own expense! Customer service just doesn't get much better than that. Kudos to a first-rate provider." Warren Stein, Leesburg, VA - Writing to Practical Sailor - 2020
Crankcase Vent Kit
"Just to let you know, I installed the PCV kit on the Atomic 4 in my
Pearson 30. This engine has some pretty intense blow by that caused smoke from
the breather cap to fill the cabin with noxious fumes. Installation of the new
valve has eliminated this situation completely. The kit was easy to install
taking less than an hour. Thanks again for supplying such a great improvement
for this fine old engine. "
George Barnett, Mays Landing, NJ - 2009
"The PCV valve conversion, made by Indigo Electronics of Newport News,
VA., is a fine package of well-made parts and clear instructions. Installation
took about an hour, and our engine never breathed as clean as it does now.
There are no more fumes in the cabin."
Tom Dove, Chesapeake Bay Magazine, July 1996
"I have installed 2 of Indigo's kits (Electronic Ignition and the PCV
system) with excellent results. The value of an electronic ignition is a
no-brainer, particularly when getting to the points is next to impossible as
mine are. The PCV installation completely eliminated all of the fumes in the
boat and was easy to install."Larry Dow, Eliot, Maine
"The installation was straightforward and simple even though the Newport 30 II "engine room" requires that the distributor be worked on through a 4 inch high gap between the hull liner and the underside of the cockpit. The results? Astounding! After more that 200 hours the engine starts on the first turn and the plugs haven't needed to be changed."Pat Broderick, Club Newsletter, CA 1995
"Just wanted to give you an update on the FWC I purchased a few weeks back. Well I got a chance to get down to the boat [ it's almost a mile f om home]. I made up an extension for the alternator bracket, got a couple of hose fittings and adapters, tightned everything up, flushed the block out with fresh water, followed your instruction regarding filling the antifreez and fired it up. Runs great, seems a little quieter and smoother than before the kit. I then changed the oil and winterized it. Overall I am very impressed with the quality of the kit and the instructions that came with it. Every thing fit and worked as advertised. Thanks."Andre Weiser, New Rochelle, NY 1999
To order your's today, send check/money order to:
105 Pipe Kiln Court
Williamsburg, VA 23185
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