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Rpm

78Secatero

78Secatero

ArboristSite Lurker
Joined
Jul 14, 2018
Messages
9
Age
42
Location
Magdalena
Does anybody know what the rpm is supposed to be on a 395xp, it has 58 mm big bore, dominate bearing. I'm using it for competition.
 
cus_deluxe

cus_deluxe

Commie Satan turd
Joined
Apr 6, 2014
Messages
4,823
Location
Northern Lower Michigan
Presumably its a modified saw, so without knowing whats been done, the best answer is whatever the carb allows. Generally racing with gas saws, the saw is tuned a lot leaner than you would for work. I would start by tuning the high right to where the saw barely 4-strokes, then go slightly leaner if u want, compare cut times with tuning adjustments. But it will be running hotter, so you gotta be careful. I run 25:1 or so for the little bit of racing ive done.
 
ironman_gq

ironman_gq

Addicted to ArboristSite
Joined
Aug 16, 2008
Messages
1,581
Location
Iron Range MN
Only you can know what RPM is right, the right RPM is whatever is fastest through the wood. Doesn't matter what the no-load RPM is, tune it by cut time and the fastest should be where your saw is making the most power.
 
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