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Author Topic: CAD software for turbo header exhaust design?..or..turbo exhaust theory links..?  (Read 29139 times)
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Jorge
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« on: May 15, 2013, 05:17:43 AM »

I'm trying to find a good software or good links on turbo header and exhaust design/theory..any help..will be great...thanks..
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Grant Borman
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« Reply #1 on: May 20, 2013, 01:01:22 AM »

There are CAD and 3d modeling programs that can help you do layout and visualize things. You can also use a CFD program to see how it will handle the exhaust pulses and interact with other cylinders.  You can learn how to use a CAD program somewhat quickly but you really have to master a fluids program to be able to get meaningful gains.

I read "Scientific Design of Exhaust and Intake Systems " and it had some good information if you are looking at designing and testing intake and exhaust systems for the first time. Its a little dated but the ideas don't age. 

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Jon
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« Reply #2 on: May 20, 2013, 03:07:44 AM »

Are you interested in the exhaust flow design or the physical layout design?

There is plenty books around on exhaust theory, I've generally used calculations from A. Graham Bell's books in Excel to get a "designed length" and then worked to keep close to that in steel by eye and tape measure. I generally don't get hung up on small differences in length.

If your developing a motor that runs over an extremely narrow rpm band only like a stationary motor or a vehicle with infinitely variable transmission it may warrant getting them spot on but in a real world vehicle I recon a slight tune spread is probably not a problem.

PipeMax used to be the standard other software was judged by, not sure if that is still the case.

Any CAD program should let you draw a path and extrude along it to visualise clashes.

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jon
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Jorge
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« Reply #3 on: May 20, 2013, 09:06:58 PM »

Grant Borman...

    Thanks for sharing...I have already ordered that book by Philip H. Smith through Barns and noble..I heard good things about it so I figured I should start there..I was giving advise by a good friend to take a class on CAD design at a local community college and possibly take a fluids program as well..I asked the guys from Burn Stainless and they recommended Solidsworks..I'm looking into that right now..
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« Reply #4 on: May 20, 2013, 09:17:43 PM »

Jon....

   I'm interested in both..learning the flow characteristics to design a great tuned race header..and full exhaust system..thanks for sharing about your experience with A. Garhams calculations..I'll do researcher on that..and definitely look into Pipemax..thanks..I'm not trying to design and weld/fab headers and exhaust systems overnight..Im just wanted to get a start..thanks again for sharing..
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« Reply #5 on: May 21, 2013, 08:47:17 AM »

For what it is worth, I've been using Engine Analyzer Pro  3.9 to design my turbo exhaust systems. You can download it it for free and run it for 10 days. Don't forget to type in the actual I'd of the tubing not advertised size. There is about a .10 or better difference.
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« Reply #6 on: May 28, 2013, 05:09:34 AM »

Robfrey

   Thanks a lot...I'll check that out...all info is very helpful thanks..
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« Reply #7 on: October 15, 2013, 09:33:25 PM »

If one wanted to design an individual stack exhaust system  for an 8 cyl. eng. where would one look?
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« Reply #8 on: October 26, 2013, 08:44:42 AM »

If one wanted to design an individual stack exhaust system  for an 8 cyl. eng. where would one look?

Same place. Performance Trends Engine analyzer pro 3.9
http://performancetrends.com/Engine-Analyzer-Pro.htm

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