| QUOTE (Roadrunner335 @ 09.02.2019, 23:46) | Hi,
well basically its the same engine so cylinder and cylinder head would fit. However the KR50 had a larger intake port. There are also four cylinder head versions which will give you a different CR!
Early KR50 (like yours) had an estimated 2,1 hp with a CR of 7,5:1, later ones had 2,3 hp with even larger intake port and CR 8,5:1.
SR1 and SR2 had 1,5 hp and CR 6:1 or CR 7:1, later Sr2E's had 1,8 hp with a CR of 7,5:1.
Lots of info on that topic in here: https://www.ddrmoped.de/forum/index.php?showtopic=2213
You could of course use a Sr2 cylinder and modify the intake port... |
thank you. so I could modify this to work for me?
Tuning 4PS Zylinder + Kopf + Kolben pas. f. Simson SR1, SR2, SR 2E
it would appear that its just a matter of intake port and squish band on the head that make them all different. or am I missing something?also thank you for your information.
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58/59? Kr50
