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304065 304065 is offline
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Actually, being airplane engines the power to weight ratio is excellent.

Here is a table originally researched and posted by Bill Verburg.

Here are the weights of various 911 engines w/ source




kg lbs-- models-- Source

182 400 2.4L E, S, RS 1972-73 Tech. Spec. book

183 403 2.4L T 1972-73 Tech. Spec. book

200 440 2.7L 1975-1977 Aichle - 911 Engines

190 419 78-83 930/09,19,10 78-81 78-81 & 82-83 Tech Spec. book

200 441 78-83 930/03-08,13-17 78-81 & 82-83 Tech Spec. book

190 462 3.0L 1980-82 Aichle - 911 Engines

219 483 84-87 930/20,26 84-87 Tech Spec. book

220 485 84-87 930/21,25 84-87 Tech Spec. book

219 482 3.2L 1987 - 1988 Aichle - 911 Engines

238 524 964 89-94 M64/01,02 ROW &US 964 Tech Spec. book

226 497 M64/03 RS 964 Tech Spec. book

275 605 M30/69 3.3L 964 Tech Spec. book

276 608 M64/50 3.6L 964 Tech Spec. book

232 510 M64/05-08 993 Tech Spec. book

221 487 M64/20 993RS v-ram w/o ZMS 993 Tech Spec. book

230 507 M64/20 993RS v-ram w/ ZMS 993 Tech Spec. book


Here is a link to the Lycoming 360 series engine specs. Note the dry weight. http://www.lycoming.textron.com/main.jsp?bodyPage=productSales/engineSelectionGuide/360.html

For example, your garden-variety 0-360 produces 180 horsepower and has a dry weight of 265 pounds. = 1.47 lb/hp.

When you add fuel injection: I0-360, 200 HP, 293#, or 1.47 lb/hp.

Contrast that with the SC motor- 180 HP, 462#, 2.57 lb/hp. Or the 964, 247 HP, 608#, 2.46 lb/hp.

OK, these don't include headers and probably don't include an alternator or other accessories. But a/c engines, despite their aging 1930's technology, crank out a ton of HP and torque for their size. And dont' weigh as much as you would think.
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Old 01-06-2004, 01:59 PM
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