scavenging

[speedcostsmoney]

what would be the result of less scavening. thinking of opening the exhaust valve a little sooner to cancel some loss of gas , would this create more torque or more horse power . by the way get a lot of scavenging from my after market exhausts, way too much got to run a 2mm main jet for the bike not to be too lean .planning on adjusting the exhaust cams mark off center rather than center with the cam holder mark. wondering if anyone has tried this :ummm:

 

[Damon]

Re-Degree your cam timing with slotted sprockets, these values have worked well for me to reduce scavenging.

Intake lobe center 105~106 & Exhaust lode center 109~110

 

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Generally speaking, less valve overlap equals more low end and less top end. More valve overlap is just the opposite.

However, it is rarely that black and white when building an engine.


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