Eli5: Why cant trucks accelerate as fast as cars?

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For example:
Model 3:
Weight: 3,000lbs
0->60mph: 3.2 sec
Torque: 376lbft

Ram 3500:
Weight: 7,000 lbs
0->60mph: 10 sec
Torque: 660 lbft

I see that the weight doubles, but so does the torque. And the acceleration is roughly 3x’s as slow.

In: Engineering

7 Answers

Anonymous 0 Comments

Your comparing a Diesel engine truck to an electric car that weighs half as much. The ram 3500 turbo charged Diesel engine is designed to haul stuff, the turbo helps it move stuff faster, but with the stock configuration it’s not meant to be a race car.

If you slapped a 16k pound trailer on both you would see a big difference in performance and 0-60 times.

Anonymous 0 Comments

First off, the comparison of electric cars to combustion engines are not equals.

But engines and transmissions are optimized for different purposes. You could have a Ram truck and a Ferrari with same horsepower and torque, but the way that power is directed differs to achieve different jobs — one is meant to move as fast as possible, while the other is meant to pull lots of weight in a reasonable amount of time.

Anonymous 0 Comments

Torque doesn’t necessarily mean more speed. Weight is a huge factor here. Also trucks lack rear end weight. This will effect traction when performing a launch. Theres a lot more going on than just the specs of a car. Technology plays a huge role. Also the drive train, how the weight is distributed, turbo vs NA vs SS, and more. Comparing specs isn’t going to tell the whole story.

Anonymous 0 Comments

Ponies are how fast you hit the wall. Torque is how far you carry the wall with you after you’ve hit it. These other replies have explained the answer to your question better than I ever could.

Anonymous 0 Comments

Simply because they arent designed to. You cant judge performance by specs.

Also electric motors can ramp up the torque very quickly where it’s a lot slower for gas engines. So the model three can hit peak torque from the get go where as the ram needs to ramp up the engine rpms to do it and that takes a few seconds.

The ram is designed more for towing.

Anonymous 0 Comments

Torque matters not. Power makes for acceleration. Sure, a car’s engine may give less torque, but it can rev five times as high, and gears can turn that lower torque into sufficient torque at the cost of RPM, putting the car’s engine at higher power/final torque at the wheels with respect to its weight.

Anonymous 0 Comments

You are only looking at weight and torque. you need a much more complete view to actually make that determination.

My tractor has much more torque than my motorcycle, yet it can’t even reach 15mph where my motorcylce can go 100mph+

Rams are meant for hauling, and thus are geared for the job and are heavier.