Originally Posted by jamarimutt
Sorry for the silly question. At least twice in this forum the smart engine has been called "a forklift engine". I really don't mind if this is the case, since I guess such engines are built for low end torque and durability, but is there any truth to such a remark?
Definitely not a forklift engine.
Car engines are designed to operate under a wide variety of conditions, with peak efficiency at low RPM, high peak power, and low continuous power.
Industrial engines (forklifts included) are designed to operate at 100% all day, with peak efficiency and power lined up on the same RPM.
If you put a car engine in a forklift, it would guzzle gas like nobody's buisiness, wear out extremely quickly (not because it's built worse, just because it's not being used as intended), and probably feel either very harsh or very sluggish depending on the implementation.
If you put a forklift engine in a car, you would think it was crazily underpowered... you'd have to work it extremely hard to get anywhere, yet somehow it would seem to enjoy the abuse, with better gas mileage the harder you drove it and million-mile industrial-grade nuke-proof reliability no matter what was asked of it. It would generally get bad gas mileage, however.
To give credit where credit is due, smart engines do fall somewhere between forklift engines and most car engines... but still erring towards being a car engine.