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#1
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Advanced Member ![]() ![]() Group: Advanced Members Posts: 349 Joined: 2-December 05 From: Lake CityTN Member No.: 998 ![]() |
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#2
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www.skulte.com ![]() ![]() Group: Advanced Members Posts: 345 Joined: 26-October 04 From: W. Hartford, CT Member No.: 515 ![]() |
The more heat you take out of the burn, the lower your cylinder pressure, and the less power you make*.
(*if you're not mojorly timing limited) A. |
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#3
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ReEntryRacer ![]() ![]() Group: Advanced Members Posts: 618 Joined: 8-December 04 From: British Columbia, Canada Member No.: 569 ![]() |
The more heat you take out of the burn, the lower your cylinder pressure, and the less power you make*. (*if you're not mojorly timing limited) A. As a matter of fact, piston engines do not make power directly from heat. They make torque from the pressure of expanding gases in the combustion chamber pushing on the crown of the pistons. Injecting water into that combustion process in the correct volume causes a tremendously more efficient increase in that pressure, resulting in as much as 30% more torque. This is done while using less fuel (de-richen from 12.5:1 best power A/F to 14.7:1 best heat A/F) during maximum power production. The temperature is less (of course) but as I said, heat doesn't have any real relationship to torque. The engine runs smoother, cooler, cleaner, and gets at least 25% more power. All this with a bottle of pure water, and a simple low pressure injection pump. Mine was a Nissan windshield washer pump. A 1-ton dually 350 SBC with a 10 ft. camper towing a boat up the 10-mile steep grade into the interior of British Columbia on Highway 5 proved the concept. Drilled two holes in the air cleaner lid for small jets (drilled .050" holes in 3/16ths bolts) positioned over the secondary barrels. A momentary contact switch under the gas pedal, and an arming switch to get it all working. Just don't forget to add a little alcohol to the bottle in the winter. The idea is not at all new. I just copied the basic system used in the Pratt & Whitney R-2800 CB16 18 cylinder aircraft engine used in the DC-6 four-engined airliners of the late '40s. They got an EXTRA 500 BHP for take-off on each engine (that's a total of 2000 BHP, equal to a 5th engine!) when using water injection. The tanks and pumps were quite small, with 6 gallons providing enough for about 40 minutes of extra power. They used 25% LESS fuel during the take-off and climb than when running "dry". Jets also used the concept to lower turbine inlet temperatures while conserving fuel and increasing power. Both piston and turbine helicopters used it too, for extreme high altitude hover rescues, etc. Nothing is really new. We just forget. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/rolleyes.gif) |
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#4
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newbie Group: Members Posts: 16 Joined: 29-November 05 Member No.: 994 ![]() |
The more heat you take out of the burn, the lower your cylinder pressure, and the less power you make*. (*if you're not mojorly timing limited) A. As a matter of fact, piston engines do not make power directly from heat. They make torque from the pressure of expanding gases in the combustion chamber pushing on the crown of the pistons. Injecting water into that combustion process in the correct volume causes a tremendously more efficient increase in that pressure, resulting in as much as 30% more torque. This is done while using less fuel (de-richen from 12.5:1 best power A/F to 14.7:1 best heat A/F) during maximum power production. The temperature is less (of course) but as I said, heat doesn't have any real relationship to torque. The engine runs smoother, cooler, cleaner, and gets at least 25% more power. All this with a bottle of pure water, and a simple low pressure injection pump. Mine was a Nissan windshield washer pump. A 1-ton dually 350 SBC with a 10 ft. camper towing a boat up the 10-mile steep grade into the interior of British Columbia on Highway 5 proved the concept. Drilled two holes in the air cleaner lid for small jets (drilled .050" holes in 3/16ths bolts) positioned over the secondary barrels. A momentary contact switch under the gas pedal, and an arming switch to get it all working. Just don't forget to add a little alcohol to the bottle in the winter. The idea is not at all new. I just copied the basic system used in the Pratt & Whitney R-2800 CB16 18 cylinder aircraft engine used in the DC-6 four-engined airliners of the late '40s. They got an EXTRA 500 BHP for take-off on each engine (that's a total of 2000 BHP, equal to a 5th engine!) when using water injection. The tanks and pumps were quite small, with 6 gallons providing enough for about 40 minutes of extra power. They used 25% LESS fuel during the take-off and climb than when running "dry". Jets also used the concept to lower turbine inlet temperatures while conserving fuel and increasing power. Both piston and turbine helicopters used it too, for extreme high altitude hover rescues, etc. Nothing is really new. We just forget. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/rolleyes.gif) Does this thing work then? Or the idea of it? |
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