:: overlap inlet and scavenging timing
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Piet30Topic starter
Berichten: 1082
I’m just tuning an DR EVO cylinder and have enlarged the scavenging port timing.
Now I have an overlap of about 10° with the inlet timing. Is 10° overlap still ok?
In general, what influence does the overlap timing has?
EdjuhBijdrager
Berichten: 6956
Im not an expert on the subject, but I believe I’ve read that 10 degrees is about the maximum you want in overlap.
I guess more overlap could disturb the flow of mixture due to a loss of pressure.
Piet30Topic starter
Berichten: 1082
yes, I’ve heard that too. 10° should be the max.
That’s why I’m thinking about to tune the krukas in that way that I will get about 5° to 8° overlap.
But I can not estimate the influence if I go too low in overlap. No idea where the lower borderline is. 😕
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