Dont understand (Horsepower vs Torque)
 

Hi

I thought horsepower was what gave a car torque,..so how come I see this:

The standard Genesis engine is a direct-injected 3.8-liter V6 that produces 333 horsepower and 291 lb-ft of torque.

Nissan z 332 horsepower and 270 lb-ft of torque

Can someone give me a simple explanation of why two engines have the same horsepower and different torque?

Horsepower is a product of torque and rotational speed (RPM). So if the engines have different torque curves the horsepower could be different. The equation is: HP = Torque x RPM ÷ 5252

So the genesis makes higher torque at lower RPM compared to the Z.

Torque is what you feel when you accelerate it's what pushes you back in your seat.

Short answer, its how the heads are designed and how the manufacturer wants the power curve to be also combined with the bore and stroke and compression. (since they're both NA) if you were comparing numbers between NA and FI I would have a different answer. What bluenoser said is the math part of the answer

I would also look at where the peak power is and what they rev to. I would be curious to see a Dyno sheet from the genesis. I don't wanna get into a debate over numbers but comparing those vehicles is gonna come down to how it drives. Seems to me Hyundai tweaked whatever they could to make it even more competitive on paper to gain more interest in the model since its comparitively priced to the 370

That might not explain it very well actually. The HP is actually a peak HP that only happens at one particular RPM. So the genesis and Z can make the same HP but at different RPMs. If you have a torque curve you can calculate what the HP curve is by that equation.

What Is Torque?

This one has a cool animated engine.

http://auto.howstuffworks.com/auto-p...tion/fpte4.htm

Just remember that there are multiple factors to bear in mind when comparing the relative speeds of two cars in terms of "my car is faster than yours". Weight, HP, and torque are your big 3 in a straight line.

To use your example:
stock nismo 370z 0-60: ~4.4 sec
quarter mile: 13 sec

stock hyundai genesis R-Spec: 0-60 ~4.7sec
quarter: 13.3

Listen to the guys above though they explained it better tbh.

genesis (and some 370) specs seem wayyyy off in this thread.

Hyundai Genesis Coupe - Wikipedia, the free encyclopedia

They don't have the same horsepower... Mystery solved!

Of course they are off it's wikipedia.

Larger engine and DI makes only 1hp more and 20tq more... Good job Hyundai?

Yup, pretty amazing, ha!

Not that it answers your question but a Genesis is not going to beat a Z even with more torque... read any review of the car... they are generally underwhelming.

Ok, New Hyundai Genesis Coupe 2013, 2.0T, 3.8, 3.8GT - Luxury Sports Car - Affordable Sports Car