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June 16th, 2016, 08:15 PM   #41
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By far the best ever book I've picked up on the subject is Gordon Jennings Two Stoke Tuners Handbook.

http://www.amrca.com/tech/tuners.pdf

This is a great little book to read even of you ae interested in four strokes too. The basic principles are the same just only differ in execution.

If you want more google Gordon Blair two stroke. Or you can go to SAE and search on two strokes and read about two stroke turbo diesels.

https://www.sae.org/events/setc/

As for modern day use... A few thoughts come to mind. For one I'd make a computer controled adjustable cone inside the back wall of he expansion chamber to optimize the reflection wave.

Then I'd have oil mist injectors and seperate fuel injectors and I'd only inject the fuel after the exhaust reflects back. So just fresh air is used to gain the momentum during the exhaust intact overlap to boost the combustion pressure and then fuel only gets injected at the right time to make power.

A few more tweaks and you would not be abke to tell the differnce between it and the modern day four stroke.
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June 16th, 2016, 10:35 PM   #42
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Just changing the convergent section of the pipe will also change the pipe volume...
I've seen footage of an adjustable pipe and was basically a trombone concept. It moved in the order of mm...
From the successfully injected bikes I've seen, current wisdom seems to point to injection into transfers against the gas flow...

Oh, and as long as a 2 stroke piston ring scrapes oil past an open port, emissions will be dirty.
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June 17th, 2016, 03:25 AM   #43
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Quote:
Originally Posted by kenup283 View Post
By far the best ever book I've picked up on the subject is Gordon Jennings Two Stoke Tuners Handbook.

http://www.amrca.com/tech/tuners.pdf

This is a great little book to read even of you ae interested in four strokes too. The basic principles are the same just only differ in execution.

If you want more google Gordon Blair two stroke. Or you can go to SAE and search on two strokes and read about two stroke turbo diesels.

https://www.sae.org/events/setc/

As for modern day use... A few thoughts come to mind. For one I'd make a computer controled adjustable cone inside the back wall of he expansion chamber to optimize the reflection wave.

Then I'd have oil mist injectors and seperate fuel injectors and I'd only inject the fuel after the exhaust reflects back. So just fresh air is used to gain the momentum during the exhaust intact overlap to boost the combustion pressure and then fuel only gets injected at the right time to make power.

A few more tweaks and you would not be abke to tell the differnce between it and the modern day four stroke.
I don't even know half of what your on about. It seems legit.welcome. contribute more.
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June 17th, 2016, 03:26 AM   #44
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Same to all contributors in the thread.
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