GAS /vs/desiel

which has the most pulling power from a dead stop Gas or Desial,both equialy powered

Impossible to say.  It would depend on too many other factors like gearing size of engine traction etc.  

In general diesel will have higher torque at lower RPMs give the same maximum power engines.

Why did you ask the question? If we better understand your motive, we can give a more direct answer.

A specific vehicle may be especially designed for greater pulling power at the start, regardless of whether it runs on gasoline or diesel.

Agree, my disel tractor has twice the pulling power as my SUV that’s 4 times as powerful…it’s gearing and weight that win the battle there. Too many factors to make overall assumption.

All else being equal it will generally be a diesel. Diesel engines use much higher compression ratios and the fuel is spray into a very hot compressed air, hotter than a gas engine, so it gets a fast, immediate combustion. A big boom very fast at the top of the stroke.

A gas engine has a slower burn, a flame front that relatively slowly pushes the piston down.

That high compression and high heat creating a fast combustion in the diesel puts more power at the high end of the stroke (the low end of the power curve) at the expense of power at the low end of the stroke (the higher end of the power curve).

As MB said…All other things being equal…the Diesel. Diesel will have a LOT more low end torque then a gas engine. A gas engine will have better high-end hp though (usually).

Gotta’ chain 'em bumper to bumper and have a pull-off! :slight_smile:

That’s a good idea for a TV commercial…