The high-energy ignition install was pretty easy, and the improvements can be felt in the seat dyno as well as in our wallets as the Jeep picked up a few mpgs with this upgrade. This is an upgrade we won't hesitate to recommend to anyone or add to any of the other applicable engines in our herd of 4x4s.
At some point in the mid-1970s or so, GM, with Delco-Remy, came up with a new electronic ignition system known as HEI, or High Energy Ignition. We've touted this as an upgrade for many engines and it continues to be a great upgrade for any older vehicle.
Davis Unified Ignition (DUI) is a leader in supplying drop-in HEI systems for many engines, including the AMC 304ci V-8 in our '74 CJ-5. These systems from DUI incorporate GM's large-cap distributor with an integrated coil and control module. Installation is simple, and the system offers not only a custom distributor recurve but also a more powerful spark for the engine. We opted for all of the advances to come in at about 3,500 rpm, a place where our engine would see lots of use. The result is a major seat-of-the-pants improvement, as well as improvements in mileage and reliability. Here's how we installed the unit.
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Denne historien er fra July 2022-utgaven av Four Wheeler.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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2022 Summer Safari
NEK Overland led the way into parts of Vermont and a bit of New Hampshire most will never see
This fourdoor Ford foreshadowed late-model Broncos
Ddecades ahead of the '20 four-door Bronco, and even preceding the Ford Explorer and Excursion, came an SUV that could have passed for OEM and was built to answer the call for a three-row people-haulin' off-roader.
JEEP OR BLAZER BUILDING
I was hoping to pick your brain as to a couple of different builds. I have a '19 Jeep Wrangler JL and a '74 Chevy Blazer. I'm a little baffled as to what to focus on. The '74 full convertible Blazer is my dream vehicle. She's been a long build and now I am thinking of focusing my energy on my wife's '19 Jeep JL. I recently joined a Jeep club and have been going off-road with a few guys. I'm shopping around for lift kits. Would you suggest that my time be spent and focused on the Blazer or enjoy the Jeep? I really can't do both.
JEEP BEACH 2022
10 days, 25,000-plus Jeeps, 225,000-plus spectators
TAULER JACK
A new alternative to the old off-road jack
OVERLAND ADVENTURE 2022:
MEET THE PARTICIPANTS 12 outstanding, Mojave-ready over landers
JEEP GRAND CAMPER
This custom 1994 Grand Cherokee and homebuilt trailer were made to go camping
ROCK JUNCTION 2022
4 days, 23 trails, 1 awesome event
DECKED OUT SILVERADO
Is this the ultimate overland accessory for pickups?
SANDTASTIC!
Dangle the opportunity to put the hammer down on more than a dozen square miles of the largest coastal dune complex in the world, add in partying with family and friends at sand camps, spice it up a bit with a variety of motorsport competition and nightly concerts, and it's easy to see why the five-day
