New bore?

[Painthehouse]

A lot of people are misinterpreting there bores and CC's. Such as a .40 bore as a 240 kit.

HOW TO DETERMINE THE CC'S OF YOUR ENGINE
(WITHOUT FILLING IT FULL OF WATER)

Since most people don't want to go around pouring fluids in their cylinder to determine cc's, there's a formula you can work to figure the displacement of any engine.

BORE (in cm) X BORE (in cm) X STROKE (in cm) X .7854 = Cylinder cc's
Of course, if you have an engine with more than 1 cylinder, you X's the number by the amount of cylinders.

Here's the formula at work.

You've got an engine with a piston size of 47.5mm, and a stroke of 50mm. Converting mm to cm is a cinch - just move the decimal point to the left one spot.

4.75 x 4.75 x 5.0 x .7854 = 88.60 CC's.

Dual cylinder just x2 your CC's.

 

[Surfrjag]

this has been going on.... long time!!! when i bought my blaster i was told it was a 240 but it was not. i think the guy really thought it was though.

 

[Painthehouse]

I noticed, this should help with any doubts.

 

[Blaner]

ah yes, the epic problem with the imperial sysytem...that why the rest of the world converted to the metric system a million years ago! mm are the way forward my friends

but seriously, i hope more people read this. the other day someone had a 300cc blaster here!

 

[Painthehouse]

I see people selling 300 and 350 blasters a lot on donedeal, I have to fight the phone from my hand. Thing is the people that buy those actually believe they are 300's.

 

[Painthehouse]

Bump. Still happening.

 

[toytech]

Bump. Still happening.

must mean I have a 260 blaster then huh?

 

[lasxgames]

for a easy calculation off your engine CC

Bore = 66mm
Storke = 57mm
pi = 3,1416

3,1416 x 6,6 x 6,6 x 5,7 / 4 = 195,00 cc´s


BORE SIZE MM_____OVER_______CC'S_____________+3 CRANK

66.00 - STOCK - 195CC - 205CC

66.25 - .010 - 196CC - 207CC

66.50 - .020- 198CC- 208CC

66.75 - .030 - 199CC - 210CC

67.00 - .040- 201CC - 212CC

67.25 .050 - 202CC - 213CC

67.50 - .060 - 204CC- 215CC

67.75 - .070 - 205CC - 216CC

68.00 - .080- 207CC - 218CC

68.25 - .090- 209CC - 220CC

72.00 - STOCK BB- 232CC - 244CC

72.25 - .010- 234CC- 246CC

72.50 - .020 - 235CC - 248CC