Industry News

October 2012 Issue

GAMIjectors: Precision Fuel Injection

GAMI’s tuned fuel injectors brought lean-of-peak EGT operations to GA. Owners confirm claims of smoother engine and better fuel economy.

Back in 1996, when General Aviation Modifications, Inc., (GAMI) of Ada, Oklahoma, announced that it had developed tuned fuel injectors called GAMIjectors, we were skeptical of claims that these gadgets made the engine smoother and more economical through lean of peak EGT (LOP) operation. After all, we’d seen our share of bolt-on engine devices that promised to enhance engine performance, longevity and cut fuel use than we liked to recall. Few if them worked. But GAMI was persistent and it published detailed engine operational data which helped sell the product to a pilot community accustomed to “trust-us, it-works” marketing. GAMIjectors developed a strong following, with more than 1000 selling in the first year. Loyal acolytes praised them to the skies, insisting that they were burning less fuel and their engines were running cooler. A devoted core of skeptics took the opposite view, arguing that owners were going to burn up their engines, cylinder life would be measured in double digits and the engine manufacturers would deny warranty claims on modified engines.

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