Re: HP diff between gas and diesel

Posted by Determined on June 22, 2018 at 20:51:44 from (216.130.212.201):

In Reply to: HP diff between gas and diesel posted by bumblebee on June 21, 2018 at 15:31:14:

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You can de-rate any engine to produce a lower than potential chosen HP.

At times this has merit as the longevity is increased.

Unfortunately running an engine at such a reduced efficiency will cost you dearly in fuel consumption.

Gas engines typically reach peak HP at higher rpm than diesel engines so all you are doing is holding it back from it's potential and wasting fuel.

The 8.1 Vortec in my dually for example makes about 150 HP at 2000 rpm by the time it reaches 4000 rpm it peaks around 340 HP properly geared and utilized it makes a lot more sense to use the power it can dependably make instead of governing it at 150 HP.

Limiting factor on a tractor is being able to use the same transmission and gearing for gas or diesel and still maintain a 540 or 1000 rpm at the PTO.

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