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Seeking 383 propane engine build advice
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<blockquote data-quote="Burbling2500" data-source="post: 1571644" data-attributes="member: 21902"><p>I met with the engine builder with more pointed question on why we aren't going with the higher compression that seams more efficient for propane in rock crawling. He said we are accomplishing comparable efficiency and power through quench factor coming to .045" with the d dish pistons in the 383 application. He went back to his original question of my goals and use of the vehicle. Longevity of the engine and as a tow beast.</p><p></p><p>He said by accomplishing very complete combustion through quench and additional machining including chamfer on the d dish to not trap carbon molecules we are already optimizing the fuel without comprised longevity. He stated that the higher compression ratios that are great for taking a performance and a rock climbing for a couple hours is a completely different application than towing trailers around the country and daily driving and the higher compression ratio would compromise the life of the engine in my application.</p><p></p><p>He does have over 30 yrs building alt fuel engines including many years teaching and building them in other countries so I trust him. He also has received his same engines back in the early years and been able to examine his own work of what components and machining techniques stand the test of time.</p><p></p><p>From everything I have gathered from propane got a bad reputation of not producing enough power or premature failure in the early years after the last energy crisis. The design of the builds now have resolved the issues and will last just as long as unleaded and deliver all the HP and torque needed for regular driving. 1/3 the hydrocarbons, 99% less particulate,. 40-50% the cost of unleaded after conversion, storable, versatile. </p><p></p><p>Every fuel type has its advantage and disadvantage, but given global instability of pandemics wars economic, food shortage and supply chains...propane is the most versatile and stable in our part of the world.</p></blockquote><p></p>
[QUOTE="Burbling2500, post: 1571644, member: 21902"] I met with the engine builder with more pointed question on why we aren't going with the higher compression that seams more efficient for propane in rock crawling. He said we are accomplishing comparable efficiency and power through quench factor coming to .045" with the d dish pistons in the 383 application. He went back to his original question of my goals and use of the vehicle. Longevity of the engine and as a tow beast. He said by accomplishing very complete combustion through quench and additional machining including chamfer on the d dish to not trap carbon molecules we are already optimizing the fuel without comprised longevity. He stated that the higher compression ratios that are great for taking a performance and a rock climbing for a couple hours is a completely different application than towing trailers around the country and daily driving and the higher compression ratio would compromise the life of the engine in my application. He does have over 30 yrs building alt fuel engines including many years teaching and building them in other countries so I trust him. He also has received his same engines back in the early years and been able to examine his own work of what components and machining techniques stand the test of time. From everything I have gathered from propane got a bad reputation of not producing enough power or premature failure in the early years after the last energy crisis. The design of the builds now have resolved the issues and will last just as long as unleaded and deliver all the HP and torque needed for regular driving. 1/3 the hydrocarbons, 99% less particulate,. 40-50% the cost of unleaded after conversion, storable, versatile. Every fuel type has its advantage and disadvantage, but given global instability of pandemics wars economic, food shortage and supply chains...propane is the most versatile and stable in our part of the world. [/QUOTE]
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Seeking 383 propane engine build advice
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