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Sjorge450R
03-23-2006, 06:51 PM
What is the CC on a stock stroker blaster with a 3mm over bore?
bradley300
03-23-2006, 07:29 PM
i added 4mm to my motor and its 209 cc
Sjorge450R
03-24-2006, 04:47 AM
Originally posted by bradley300
i added 4mm to my motor and its 209 cc

so 3mm would be over 200cc. Correct?
bradley300
03-24-2006, 10:04 AM
no, i know a 1.4mm stroker is exactly 200cc, so a 3mm is probably around 205
flyin#5
03-24-2006, 12:00 PM
ok. so stock bore is 66mm, so adding 3mm to it would be 69mm.then stock stroke is 57mm. so now we need to use the cc forumula: Bore (mm) X Bore (mm) X Stroke (mm) X 3.1416" = Engine cc

so 69x69x57x3.1416=852557.9832 now divide that by four and you get 213139.4958 move the deicmal to the left 3 places and you come up with roughly 213cc's.
03-24-2006, 08:23 PM
So if my motor is bored .020 over it equals .508 mm. So 66.508 x 66.508 x 57 x 3.1416= 792088.1574173568 / 4 = 198022.0393543392 So thats 198CCs?
flyin#5
03-24-2006, 09:36 PM
Originally posted by BlueBlaster55
So if my motor is bored .020 over it equals .508 mm. So 66.508 x 66.508 x 57 x 3.1416= 792088.1574173568 / 4 = 198022.0393543392 So thats 198CCs?

correct
y2kBlaster
03-27-2006, 05:37 PM
I know the +3 says it requires no machining to the head but does the +4 require and machining