This isn't a 200 vs 220 question.
I'm asking about doing a big bore on a 200. EG does 225 with his own piston, but why wouldn't it be almost as good and more easily maintained over the long run to just bore it to 220 size and run a standard 220 forged piston in the 200 motor (assuming equivalent porting adjustments were made)?
Basically, I'm asking, why can't the custom build be more like a stock build? Why does it have to be all custom?
225 - why not just 220 and stock-size piston?
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225 - why not just 220 and stock-size piston?
I think 225 is the max you can get and most ppl will go all the way to the max since the cost will be the exact same as doing a 220 out of a 200.
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225 - why not just 220 and stock-size piston?
i can't see any reason why your idea would not work. well maybe one maybe the porting?
In any event, if porting is not an issue, seems like a good idea especially if the cost of a 225 piston is really much higher that the regular 220.
In any event, if porting is not an issue, seems like a good idea especially if the cost of a 225 piston is really much higher that the regular 220.
02 KX 200 hybrid: RB head and carb
Sold ☹ DRZ 400 SM
bike build: http://www.kdxrider.net/forums/viewtopi ... ike+stable
bike profile http://www.kdxrider.net/forums/viewtopi ... 0709#30709
newb info: http://www.kdxrider.net/forums/viewtopi ... 57#p117919
jetting guide: http://www.kdxrider.net/forums/viewtopi ... 105&t=1156
Sold ☹ DRZ 400 SM
bike build: http://www.kdxrider.net/forums/viewtopi ... ike+stable
bike profile http://www.kdxrider.net/forums/viewtopi ... 0709#30709
newb info: http://www.kdxrider.net/forums/viewtopi ... 57#p117919
jetting guide: http://www.kdxrider.net/forums/viewtopi ... 105&t=1156
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225 - why not just 220 and stock-size piston?
I am unsure what piston is used in the 225 kit.
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225 - why not just 220 and stock-size piston?
Besides, the 220 is actually a 218cc engine. You're getting an extra 7cm3!
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225 - why not just 220 and stock-size piston?
Isn't there a .5mm and 1mm overbore Wiseco piston for the KDX220R?
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225 - why not just 220 and stock-size piston?
Isn't it actually 216cc, and you are getting 7cc more (223cc)?Slick_Nick wrote:Besides, the 220 is actually a 218cc engine. You're getting an extra 7cm3!
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225 - why not just 220 and stock-size piston?
Part Number Price Boresize OverSize
750M06900 $170.78 69.00mm STD
Displacement: 216cc
Stroke: 58.00mm
Notes: Pro-Lite, Electrofusion Bore
Part Number Price Boresize OverSize
750M07000 $170.78 70.00mm 1.00
Displacement: 223cc
Stroke: 58.00mm
Notes: Pro-Lite, Cylinder sleeving required, Cylinder replating required, Electrofusion Bore
D'oh. Not the first time I've sucked at internet. Looks like the only reason to stick with 69mm would be to hold another overbore in reserve on the cylinder.
750M06900 $170.78 69.00mm STD
Displacement: 216cc
Stroke: 58.00mm
Notes: Pro-Lite, Electrofusion Bore
Part Number Price Boresize OverSize
750M07000 $170.78 70.00mm 1.00
Displacement: 223cc
Stroke: 58.00mm
Notes: Pro-Lite, Cylinder sleeving required, Cylinder replating required, Electrofusion Bore
D'oh. Not the first time I've sucked at internet. Looks like the only reason to stick with 69mm would be to hold another overbore in reserve on the cylinder.