Horse Power and its Effectiveness

David Cooley n5xmt at bellsouth.net
Tue Dec 14 02:54:32 GMT 1999


At 09:16 PM 12/13/1999 -0500, you wrote:
>A few comments:
>
>For a given displacement, long stroke means small bore means less force.
>This exactly balances out the longer moment arm.  Long stroke motors have a
>harder time at high revs (due to both inertia and limited breathing) but
>they offer no advantage in low speed torque.
>
>Diesel engines make less torque than gas engines (naturally aspirated).
>Their advantage is the BMEP is not limited by detonation so they can take
>gobs of boost.

Since when do they make less torque?
The cummins 5.4L I6 makes 650 lb/ft in full trim at 1800 RPM.  Tuned down 
for Dodge, It makes 400 Lb/ft at 1800 RPM...  Would love to see a gas I6 
5.4L engine do that!
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David Cooley N5XMT Internet: N5XMT at bellsouth.net
Packet: N5XMT at KQ4LO.#INT.NC.USA.NA T.A.P.R. Member #7068
We are Borg... Prepare to be assimilated!
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