In today's episode André is going to show you the heart of tuning an engine and will change the timing of the cylinder and modify the exhaust port. He will show you how he approaches the matter and what you need to keep in mind.
The multi-cylinder two-stroke engine simulator: vannik.co.za/EngMod2T.htm
Some exhaust stubs from our SIP shop that you could use for tuning: sip.shop/exhaust-stubs-list
You can also check out these books from our shop that we recommend for tuning your vespa: sip.shop/books-for-tuning-list
Here are some other books that are also worth reading:
► Blair, Gordon P.: Design and Simulation of Two-Stroke Engines (Premiere Series Books) | ISBN: 9781560916857
► A. Bell; Two stroke performance Tuning; Haynes Publishing; ISBN-10: 1859606199 | 2. Edition (28. November 1999), ; ISBN-13: 978-1859606193
Chapters:
0:00 Intro
0:25 Degree to time translation
1:40 Blow down period
2:48 Timing estimation
3:42 Transfer port adjustment
5:27 Squish gap
6:33 Ex port opening date
7:14 Ex port width
8:20 SIP Performance tuning flange (15045210) sip.shop/exhaust-manifold-stu...
10:20 Shaping the ex port duct
14:12 Outro
14:32 End
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