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Propane High HP Question
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<blockquote data-quote="altfuel1991" data-source="post: 356006" data-attributes="member: 1211"><p>A high horsepower or high rpm engine will not perform properly with a single mixer. The photo is of a 383 stroker with one of my fuel systems on it. It dynoed at 630 hp on gas and 565 on propane. It ran in one of the off road competition series and did well. It had a strong flat torque curve of over 500 lb.ft. starting at less than 2000 rpm and stayed there over 6500 rpm. This is using technology that is 50 years old. </p><p></p><p>A single mixer is equivalent to running a two barrel gasoline carburetor on a V8. </p><p></p><p>It all comes down to the engine being properly set up and all components working properly. We discovered an issue recently while converting some Ford V10's in F650s with the engine going lean in a hard pull. It turned out to be a fuel starvation issue caused be restrictions in the fuel line fittings. The 90 degree fittings on the fuel hose had smaller i.d. than the straight fittings and was slowing the fuel coming from the tank. We had to remove all the angled fittings from the fuel lines to correct the issue.</p></blockquote><p></p>
[QUOTE="altfuel1991, post: 356006, member: 1211"] A high horsepower or high rpm engine will not perform properly with a single mixer. The photo is of a 383 stroker with one of my fuel systems on it. It dynoed at 630 hp on gas and 565 on propane. It ran in one of the off road competition series and did well. It had a strong flat torque curve of over 500 lb.ft. starting at less than 2000 rpm and stayed there over 6500 rpm. This is using technology that is 50 years old. A single mixer is equivalent to running a two barrel gasoline carburetor on a V8. It all comes down to the engine being properly set up and all components working properly. We discovered an issue recently while converting some Ford V10's in F650s with the engine going lean in a hard pull. It turned out to be a fuel starvation issue caused be restrictions in the fuel line fittings. The 90 degree fittings on the fuel hose had smaller i.d. than the straight fittings and was slowing the fuel coming from the tank. We had to remove all the angled fittings from the fuel lines to correct the issue. [/QUOTE]
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