bore help please
May 22, 2010 | 10:50 PM
#1
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Weekend Warrior
Joined: Dec 2009
Posts: 10
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bore help please
I'm trying to figure out 400ex bore info.
If I have a 400ex and bore it from the stock 85mm to 86mm.
is that considered a 416 bore?
and if i have it bored to 87mm.
is that considered 426 bore?
If I have a 400ex and bore it from the stock 85mm to 86mm.
is that considered a 416 bore?
and if i have it bored to 87mm.
is that considered 426 bore?
May 23, 2010 | 12:10 PM
#3
Pro Rider
Joined: Sep 2006
Posts: 382
Likes: 0
From: Dawson Creek
total volume or displacement
pi x radius squared x stroke
doing it in mm gives you a big number just take the first three numbers
if it had 70mm stroke the displacment with the 86 mm piston would be
406.6 cc
ok wiseco online lays it all out for you. it has a 70 mm stroke they call a 86mm 407 and a 87 mm 416cc
pi x radius squared x stroke
doing it in mm gives you a big number just take the first three numbers
if it had 70mm stroke the displacment with the 86 mm piston would be
406.6 cc
ok wiseco online lays it all out for you. it has a 70 mm stroke they call a 86mm 407 and a 87 mm 416cc
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