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7.3 diesel is better or turbo better?

There's no single answer to whether a 7.3L Power Stroke diesel is "better" than a turbocharged engine. It depends entirely on what you mean by "better" and the context.

* 7.3L Power Stroke refers to a *specific* engine: This is a naturally-aspirated (non-turbocharged) diesel engine famously used in Ford Super Duty trucks from the late 1990s to mid-2000s. It's known for its simplicity, durability, and relatively easy maintenance.

* Turbocharged engines are a *technology*: A turbocharger uses exhaust gases to force more air into the engine, increasing power and torque. Many diesel engines, including later versions of the Power Stroke, *are* turbocharged.

Therefore, the comparison is flawed:

* A 7.3L Power Stroke (naturally aspirated) vs. a turbocharged engine of a different size and type: The turbocharged engine will likely have more power and torque, but potentially less longevity and more complexity. The 7.3L's advantage would be simplicity and potential ruggedness.

* A 7.3L Power Stroke (naturally aspirated) vs. a turbocharged 7.3L Power Stroke: The turbocharged version will definitely have significantly more power and torque.

To make a meaningful comparison, you need to specify the engine you're comparing the 7.3L Power Stroke to. Consider these factors when comparing any two engines:

* Power and Torque: How much power and torque do you need for your application?

* Fuel Efficiency: Turbocharged engines can sometimes improve fuel economy, but it's not always the case.

* Maintenance: Older naturally aspirated engines are often simpler and cheaper to maintain.

* Reliability: This depends on the specific engine and its maintenance history.

* Cost: The initial cost of purchase and ongoing maintenance costs will vary.

In short: "Better" is subjective and depends on your needs and priorities.