The phrase "at low revs" is correct and usable in written English.
It is typically used in the context of discussing engine performance or vehicle operation, referring to low revolutions per minute (RPM).
Example: "The car performs efficiently at low revs, making it ideal for city driving."
Alternatives: "at low RPM" or "at low engine speeds".
They have higher torque at low revs which makes them accelerate faster.
"That would make it fun," says Bischoff, "because the car is not very fast and the two-cylinder engine doesn't sound pleasing at low revs.
They have high torque at low revs, which means an electric car is off the block before a petrol engine has even heard the starting gun.
The new engine throbs like a dirtbike at low revs and feels torquey enough to tow a stump grinder through the mud, but it belts out a full-throated roar when you rev it past 5,000 r.p.m.
The motor is there to boost torque at low revs, critical for one-tonne payloads, consequently taking pressure off of the engine and improving fuel economy.
Deep and gurgling at low revs, the note grows more urgent, even downright angry, as the engine approaches its 6,000rpm power peak.
Instead, to get optimal torque at very low revs (85% comes on at just 2,200 rpm), Ford added variable-valve timing and increased the size of the engine's intake valves, and gave the SVT Focus easier air-uptake at all speeds, thanks to a new dual-stage air intake.
Speaking about the factory's measures to combat the problems, Preziosi said: "One of the items we are testing is an engine that has more torque at low rpm and less power at high revs.
Having all that torque at relatively low revs has a way of changing a driver's behaviour.
Likewise, the transmission is well mated to this motor, with both second but especially third gear being flexible slots; you can drop into to 2 for very tight turns, but 3 is up to the task if the curves loosen slightly, since that torque is available at such low revs.
(At these low revs, the tiller is slow to respond, so "small adjustments, wait, correct" all slowly and gently).
