June 1982
At the Heart of the Matter
Best Inline-4’s of the Year
Small motors are becoming all the rage as of late. Once thought of as pre-war relics or odd power plants for niche cars and small imports, four cylinder motors have found their way into many mainstay models built on home turf. Spurred by competition going both ways, there has been significant innovation as of late.
For our 1982 Engine Showdown series, we scoured the planet for the very best 4-cylinder engines we could find. We didn’t want to get stuck on one flavor, either, so we chose models that represented different parts of the spectrum.
We’ll start with our middle-of-the-road selection. This 1825cc all-iron mill comes from Astana in the Netherlands. Its 16-valve DOHC configuration is pretty typical of European machines. One thing that is quite unusual, however, is its highly advanced, computer-controlled lean-burn carburetor. The mixture ratios obtained by Astana would make the Japanese blush. While this doesn’t sound like it makes for a thrilling ride, it does give bench efficiencies of almost 21%. Couple that with just shy of 97 horsepower, and the Astana Panther IN4 is a pretty slick machine.
It’s also a very reliable setup, with only the much-vaunted (and extremely expensive) Toyoko TC4 getting better marks on that front. Astana keeps the design simple, though, which helps keep cost down and engines rolling off the line. With the ability to make Panthers by the tens of thousands, Astana is poised to become a premier engine maker, at least in this category.
For the budget-minded, Canada’s Northern Motor Company offers up the Push-button 4R65. Coming in at 1603cc, NMC makes this a no-frills affair. The head and block are made of iron, and NMC uses cast components throughout the bottom end. 8 valves are actuated by pushrods. Similar to the Astana, the 4R65 uses a lean-burn carburetor, though the model they have chosen lacks the advanced control system. It’s not a barn burner of an engine; power output is a mere 62 horsepower. Yet without advanced technology or control systems, NMC still manages almost 20% bench efficiency.
Better yet, its design lends itself to reliability and easy maintenance. It also takes next to nothing for NMC to build, which should keep down overall costs. In a crowded field of economical engines, the NMC 4R65 definitely is a stand-out.
Finally, we’ve got an option for those who like the spicy side of life. While most manufacturers are playing with big turbos and aggressive cams on their high-performance fours, Packbat Auto Works of the USA is taking a more conservative approach. Yet the result isn’t disappointing. The 1798cc PAW Sprite LS motor is an all-iron 8v SOHC configuration. While the power numbers aren’t huge at 85.1 HP, there’s more than sufficient torque available throughout the entire RPM range.
Best of all, the Sprite LS is available on a couple light, inexpensive models from PAW. The fun factor that this motor brings to the table is quite nice, and it’s expected to last for many years. Of the three motors selected here, the Sprite is also the most reliable in testing.
No matter your preference, there’s something on the marketplace sure to fit the bill. Our recommendations are just so; we realize they may not be the best for every individual situation.