Quote:
Originally Posted by T3beatz
If I was to go up to the 30/32mm carb I'd go with a 63mm big bore kit, or a stroker crank. The extra fuel/air will be needed for the extra displacement on the stock gy6's the stock carb should be fine with just a re-jet... the cost vs performance gain with just changing the carb out probably wont be that significant without adding more space in the engine for combustion.
The big bore kit's can be found for as low as 80-90 bucks, but you will have to have the crank case machined for any big bore kit over 59mm
The 59mm big bore kit will take you up to about 158cc's over the stock 149 (or 148 in the howhits).
63mm will get you about 180cc's. (I'm sure you may know all of this, but someone who may be looking over this thread may want to know).
just found this... http://www.**********.com/buggy-tech...ore-stroker/16
big bore kit 59mm... http://www.ebay.com/itm/157QMJ-GY6-p...#ht_912wt_1396 |
You might have to look before you purchase parts first.
Post #20 shows a Howhit bore
http://buggymasters.com/forum/showthread.php?t=2665
I think the only viable option for guys with this motor are the 58.5mm/59mm bbk and a stroker crank.
Plus I've read the 63mm kit gets to be pretty thin on the cyl walls. Not good from a structuarl stand point.
I think most prefer the 62mm kit with slightly thicker cyl walls for longevity.