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How much torque can you get with 400 horsepower?

You can't determine the torque from horsepower alone. The relationship between horsepower (hp) and torque (lb-ft) also involves engine speed (RPM). The formula is:

HP = (Torque x RPM) / 5252

Therefore, 400 horsepower could represent many different torque values depending on the engine's RPM. A high-revving engine might produce 400 hp with relatively low torque, while a low-revving engine could produce the same horsepower with significantly higher torque.

To illustrate:

* High-RPM Engine: An engine making 400 hp at 8000 RPM would have approximately 262 lb-ft of torque.

* Low-RPM Engine: An engine making 400 hp at 4000 RPM would have approximately 525 lb-ft of torque.

You need to know the engine speed (RPM) at which the 400 horsepower is produced to calculate the torque.