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BorgWarner’s 6.35-mm inverted tooth silent engine timing chain reduces friction, improving fuel economy by 0.3 to 0.6% in engines ranging from 0.66 to 2.0-liters.

Timing Chain Reduces Friction, Boosts MPGs

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While 0.3 to 0.6% isn’t a heck of a lot, when you’re chasing fuel-efficiency improvements, every little bit helps. Those are the numbers that BorgWarner Morse TEC (borgwarner.com/en/morsetec) says its 6.35-mm inverted tooth engine timing chains are returning in terms of fuel economy improvements for engines ranging in size from 0.66 to 2.0 liters.

The chain’s advantage: Not only is the geometry to the link back shape optimized so as to reduce the contact area when the chain slides along the arms and guides, a cause of fuel-wasting friction, but they have applied extensive finishing and polishing to the timing chains to reduce friction as much as practical.

What’s more, according to Joe Fadool, president and general manager of the operation, the “smaller-pitch engine timing chain reduces friction while delivering lower noise and improved durability for these tough engine environments.”

The chains will launch on vehicles from Mitsubishi, Suzuki, Hyundai, GM, and an unnamed Chinese automaker.