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| Gas Engines and Power Discuss all aspects of giant scale power systems |
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| | Thread Tools | Display Modes |
| | #1 (permalink) |
| Flyin' Around ![]() Join Date: Oct 2006 Location: Burton on trent Age: 29
Posts: 6
| I was wondering if you could possibly help me as I have been looking at posts on a chat room where people have been explaining about the sizes of the pipes on engines. What are the lengths of the pipes for a DA150 engine and Greaves tune pipes? People are saying that they are 9 ¾ with an additional inch between the manifold and the pipe. Can we butt joint them and make them 10 ¾ inches or is this wrong? Please could you reply back to this email address explaining how and what I should do. Also another quick question, what size prop was on the engine? Many Thanks Chris Bull |
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| | #2 (permalink) |
| Tony Quist ![]() Join Date: Jan 2006 Location: Glendale, AZ Age: 45
Posts: 1,370
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That sounds about right. I am only running a 1/2 gap but I have the pipes on a floating mount so they can expand back instead of forward. but the 10 3/4 total header length is the correct measurement, I put in a slight throttle curve and now I have very smooth transition and great power.
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| | #3 (permalink) |
| Uber Contributer ![]() Join Date: Jan 2006 Location: Orange County CA
Posts: 191
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The 1/2"-1" gap is there to make sure you don't get any contact between the pipe and header. If they touch, the metal on metal grinding creates a lot of RF noise. Whatever you end up with, the total length is 10.75" People are running the Mejzlik 32x10 two blade and the Mejzlik 28.5x12 with this header length. |
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