Horsepower

[Gadget]

Been wondering for a long time why manufacturers make their horsepower claims at the engines rpm redline, why would I care that the 3.6 puts out 285 hp at over 6000 rpm, I'm more interested in the power it has in the normal operating range of 2000 to say 3500 rpm. Can somebody explain why they do it this way?

 

[trailless]

Because when they market it, they don't state HP at such and such RPM. Its all about the largest number. Take a look at diesel trucks and the torque ratings.

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[OverlanderJK]

6k rpm isn't normal operating rpm for the 3.6?

:thinking: noted

 

[big dr]

But when you need it,,, you floor it,, and its there.

Normally,,,, you dont need 285 HP.

 

[Gadget]

6k rpm isn't normal operating rpm for the 3.6?

:thinking: noted

I'm thinking 6k in 5th gear would be around 250mph on the highway, wonder how it would handle at that speed..

 

[ridg3runner]

I'm thinking 6k in 5th gear would be around 250mph on the highway, wonder how it would handle at that speed..

I'd definitely need a Throttle body spacer to get anything close to that speed, lmao

 

[Havoc40]

The OEM or aftermarket part manufacturers only publish the peak power numbers. In gasoline engines, those peak numbers are usually in the higher RPM range. It's just marketing...

If you think trolls are bad here, you should spend some time on engine performance forums! Everybody is about these peak numbers.

 

[Mtbhjm]

Been wondering for a long time why manufacturers make their horsepower claims at the engines rpm redline, why would I care that the 3.6 puts out 285 hp at over 6000 rpm, I'm more interested in the power it has in the normal operating range of 2000 to say 3500 rpm. Can somebody explain why they do it this way?

Try looking up some dyno runs for a stock 3.6; that should give you your answer as to how much power/torque the engine puts out at low RPMs and more importantly how much of the power actually makes it from the engine to the ground.