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Old 11-11-2024, 03:49 PM   #1
stoppre12211   stoppre12211 is offline
 
Join Date: Nov 2024
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Big bore kit for 223cc/zs165mm

hey guys.

Not sure if this is a bad solution, but I was really hoping to bore out my 223cc/zs165mm on my Vitacci Titan EFI. The only bore kit that fits the 15mm wrist pin available will go from a 65mm piston to a 67mm piston. I dont find that gain worth the effort. But I was wondering, could I use 15mmIDx16mm or 17mm to fit the larger wrist pin requirements of other cg250 big bore kit. Just raise the wrist pin OD to fit the 17mm 72mm-75mm bore kits. Let me know what you think.

I know its going to have ramifications to compression ratio and EFI flash but would this wrist pin sleeve solution even be viable. thanks.

existing max big bore kit https://gstreetperformance.com/cdn/s...8155&width=990

bore kit that would require sleeve to raise from 15mm wrist pin to 16mm wrist pin.
https://www.aliexpress.us/item/32568...yAdapt=glo2usa


 
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Old 11-11-2024, 04:56 PM   #2
dirtbkr188   dirtbkr188 is offline
 
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Join Date: Aug 2009
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You intend to use the stock 15mm wrist pin from your engine and insert sleeves to use a piston that takes a bigger diameter wrist pin? Not sure I'd want anything to do with that, but that's just my 2ยข...


 
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