Torque question

[Breezy]

what are the benefits/advantages of cars with more torque? Also say both cars pulled 140kw of power but one has more torque, would the one with more torque be quicker?

[j3z3z]

same weight???? it all depends. do they have the same rev limit and where abouts is the torque produced. your answer is a yes and a no. but generaly yes

[rawr]

if your in the car with more torque it feels faster :D ha ha go the pushed back in your seat feeling

[Drew]

As a rule of thumb the car with the more torque will be faster

[aaronng]

If both make the same power, then the car with less torque is making more of it at a high RPM. The car with more torque makes more at a lower RPM.

To explain, you can compare a b18c7 and a k24a3.
The b18c7 makes 141kW @ 7900rpm and 178Nm @ 6300rpm
The k24a3 makes 140kW @ 6800rpm and 223Nm @ 4500rpm

Assume that the 2 cars used with each engine are the same. Gearboxes are of course the ones suitable for each engine.

The difference in peak power RPM doesn't really matter because both are near their redline, and that 1100rpm difference is covered by the b18c7 having shorter ratios in its 2nd gear onwards.

Now we look at the torque. The b18c7 makes most of its torque at the high RPM range of around 6300rpm. The k24a3 on the other hand makes most of its torque at 4500rpm. So depending on the application that the car is being used it, each engine can be faster or slower than the other eventhough they have the same power.

Say on the drag strip, you are always close to the upper 2000rpm of your engine. In this case, the b18c7 will be faster to accelerate. Because at 6000-8000rpm, it has more torque at the wheels than the k24a3 at 5000-7000rpm.

When you're on the circuit, a beginner is more likely to be driving their car in the mid RPM range rather than at the top. In this case, that noob will be quicker in a k24a3. Of course, seasoned circuit drivers always keep their RPM range up at the top, so for them, the b18c7 will be quicker in that car (although it depends on your road speed on the circuit and your gear ratios).

On the street, driven normally from 2000-4000rpm, the k24a3 will be quicker.

[Breezy]

thanks for the info

[d15z1SUX]

that was explained well. :D

[Encor3]

If both make the same power, then the car with less torque is making more of it at a high RPM. The car with more torque makes more at a lower RPM.

To explain, you can compare a b18c7 and a k24a3.
The b18c7 makes 141kW @ 7900rpm and 178Nm @ 6300rpm
The k24a3 makes 140kW @ 6800rpm and 223Nm @ 4500rpm

Assume that the 2 cars used with each engine are the same. Gearboxes are of course the ones suitable for each engine.

The difference in peak power RPM doesn't really matter because both are near their redline, and that 1100rpm difference is covered by the b18c7 having shorter ratios in its 2nd gear onwards.

Now we look at the torque. The b18c7 makes most of its torque at the high RPM range of around 6300rpm. The k24a3 on the other hand makes most of its torque at 4500rpm. So depending on the application that the car is being used it, each engine can be faster or slower than the other eventhough they have the same power.

Say on the drag strip, you are always close to the upper 2000rpm of your engine. In this case, the b18c7 will be faster to accelerate. Because at 6000-8000rpm, it has more torque at the wheels than the k24a3 at 5000-7000rpm.

When you're on the circuit, a beginner is more likely to be driving their car in the mid RPM range rather than at the top. In this case, that noob will be quicker in a k24a3. Of course, seasoned circuit drivers always keep their RPM range up at the top, so for them, the b18c7 will be quicker in that car (although it depends on your road speed on the circuit and your gear ratios).

On the street, driven normally from 2000-4000rpm, the k24a3 will be quicker.

if i could give you pq points i would give you as many as i could this is a very informative post !!

good read =)

[aimre]

Ill try and sum that up with an everyday example:

You know how when u get to a hill, in our little four cylinders, we plant it and we get no where and have to drop a gear? Yet a V8 will just mucnh it up a hill in like any gear? Thats coz we got no torque.

torque can informally be thought of as "rotational force" which causes a change in rotational motion. , its the thing that gets your rpms up.