The phrase "alter engine" is correct and usable in written English.
It can be used in contexts related to modifying or changing the settings or functionality of an engine, such as in automotive or software discussions.
Example: "To improve performance, we need to alter the engine settings to optimize fuel efficiency."
Alternatives: "modify engine" or "adjust engine".
Eight driving modes – four on-road, four off-road – ensure it can cope with aplomb over any terrain by subtly altering engine response, air-suspension settings, active anti-roll bars and everything in between.
Red Bull's performance, on a track on which they have dominated for the last two seasons in terms of pure pace, will confirm in many minds that they have been knocked backwards by a rule change before this race restricting the manner in which they were altering engine settings for improved cornering performance and tyre wear.
But 14 refiners recently started a two-year, $14 million study with Detroit to try new combinations of reformulated fuel and altered engines.
Iran's gradual natural gas conversion has focused heavily on installing natural gas canisters in cars and altering engines for dual gas and gasoline use, although Iran Khodro, Iran's largest carmaker, and Saipa both produce natural gas vehicles.
With larger wheels and lower tires, lowered suspension, modified turbo charger and altered engine-management system, this V40 wagon gets a boost in performance to 220 horsepower from 160 hp in the stock V40.
This is allowed, but it is forbidden to alter the engine mapping to change the torque output of the engine in relation to the position of the accelerator, so that more gases are blowing out of the exhausts than should be.
But the real hacking is done by Superchips and dozens of other outfits that produce off-the-shelf modules that alter an engine's computer code.
The Huracán will have three standard performance packages, ranging from Strada (street) to Sport to Corsa (track), all of which alter the engine's responsiveness, the exhaust noise, the transmission speed and feel, the all-wheel drive behaviour and the paranoia of the electronic stability and traction control systems.
While ION Storm did not hugely alter the engine's rendering and core functionality, they introduced role-playing elements.
One can alter an engine to create greater compression of the fuel/air mixture within each cylinder, raising thermodynamic efficiency.
