timing
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| timing [2026/10/29 11:57] – [Engine Timing Table] nitroadmin | timing [2026/10/29 12:07] (current) – [Disclaimer] nitroadmin | ||
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| Engine timing is the most important thing in these engines. This is the dark art. Timing is what determines the performance level of the engine. This is where the biggest gains are. The second most important thing in the engine is the bore and stroke. This will tell you how the power curve will be shaped. Port count is the next important thing. However port count doesnt determine the performance nor the powerband. 3 Port engines can perform as good or better then 5, 7, 9, etc port engines. Higher port count doesnt mean more flow, it just means airflow control. With the addition of more ports you actually lose port area. So these extra ports are just shaping the flow through the sleeve into the chamber. This has affects on the air fuel mixture in the chamber. | Engine timing is the most important thing in these engines. This is the dark art. Timing is what determines the performance level of the engine. This is where the biggest gains are. The second most important thing in the engine is the bore and stroke. This will tell you how the power curve will be shaped. Port count is the next important thing. However port count doesnt determine the performance nor the powerband. 3 Port engines can perform as good or better then 5, 7, 9, etc port engines. Higher port count doesnt mean more flow, it just means airflow control. With the addition of more ports you actually lose port area. So these extra ports are just shaping the flow through the sleeve into the chamber. This has affects on the air fuel mixture in the chamber. | ||
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| + | ===== Measuring Timing ===== | ||
| + | If you want to know how to measure timing or want to time engines then see article: [[tellingtime|Telling Time]] | ||
| - | This is the most complete timing number database that you will find for RC Nitro engines. I am working on a way to accept contributions. | ||
| ===== Disclaimer ===== | ===== Disclaimer ===== | ||
| - | In obtaining this info there was modified timings as well. I consider this to be private information and im not willing to publicize someone elses private intellectual property. So any notes in relation to changes or what to do have been removed. I instead I tell you to do your own research and development. You will learn far more then you ever would copying. | + | **//In obtaining this info there was modified timings as well. I consider this to be private information and im not willing to publicize someone elses private intellectual property. So any notes in relation to changes or what to do have been removed. I instead I tell you to do your own research and development. You will learn far more then you ever would copying.//** |
| - | This site will only show engines that you can or could at the time buy off the shelf as stock or tuned by the factory. | + | **//This site will only show engines that you can or could at the time buy off the shelf as stock or tuned by the factory.//** |
| ===== Thanks ===== | ===== Thanks ===== | ||
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| __//**The timing of the sleeve ports is only listed once, as these have the same degree opening and closing time anyway. Only the crankshaft opening and closing times are not symmetrical. In times where there is number+number then that means it is a multi port exhaust and the timings differ. The higher timing number is on the outer ports. Additionally if you see Boost and Timing have the same numbers its because they are the same. Differences in these started showing up in the late 90s/early 2000s engines.**// | __//**The timing of the sleeve ports is only listed once, as these have the same degree opening and closing time anyway. Only the crankshaft opening and closing times are not symmetrical. In times where there is number+number then that means it is a multi port exhaust and the timings differ. The higher timing number is on the outer ports. Additionally if you see Boost and Timing have the same numbers its because they are the same. Differences in these started showing up in the late 90s/early 2000s engines.**// | ||
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| + | ====== Engine Timing Table ====== | ||
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| + | This is the most complete timing number database that you will find for RC Nitro engines. I am working on a way to accept contributions. | ||
| ===== Alpha ===== | ===== Alpha ===== | ||
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