The phrase "allowing the engine to" is correct and usable in written English.
You can use it when describing a function or capability that enables the engine to perform a specific action or task.
Example: "The new software update is allowing the engine to operate more efficiently under various conditions."
Alternatives: "enabling the engine to" or "permitting the engine to".
Honda engineers said that allowing the engine to go to four cylinders significantly increased the chances that the V-6 could run on fewer than six; quite often, three just weren't enough even when six were more than needed.
Allowing the engine to cool usually enables the vapour to recondense and thereby clears the vapour lock.
The distribution of power is continuously variable, explains David Hermance of Toyota, allowing the engine to run efficiently at all times.
As for that transmission, seventh and eighth gears are fuel-saving overdrives, allowing the engine to turn at a more relaxed r.p.m.
But as loud as the engine roars, drivers can take comfort: allowing the engine to rev operates the system most efficiently.
At a background briefing for reporters, another D.E.A. official said some drug smugglers had developed ways to hide several pounds of drugs inside a car's transmission while still allowing the engine to function.
What has made them more acceptable indeed, desirable is the development of advanced turbochargers that cram more air than normal into the fixed volume of their cylinders, allowing the engines to burn proportionally more fuel.
The drivetrain computer will not allow the engine to operate beyond its red line.
Finally, this approach allows the engine to display the results in various innovative ways.
The clutching mechanism allows the engine to shut down when not needed, as when slowing for a stoplight or cruising.
And having less inertia, they allow the engine to spin faster and more freely, which also boosts efficiency.
