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12.5 piston or 558 big bore

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Old 04-19-2005, 06:09 PM
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Default 12.5 piston or 558 big bore

i need some help i wanted to order a high compression piston but then i got to thinking about the 558 big bore does anyone have this done to their quad either one and what do you recomend and will i notice a big difference with the high compression piston or should i get the 558. thanks for any help or advice at all.
 
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Old 04-19-2005, 10:00 PM
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Default 12.5 piston or 558 big bore

To let ya know I had the 12:5 piston and did the big bore recently and had a little problem so put back to stock for one weekend and I could notice a big difference I would recommend doing the 558 if it was me!!
 
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Old 04-20-2005, 11:14 PM
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Default 12.5 piston or 558 big bore

Will this 558 kit work on a 99 scrambler cylinder? If so, what would the seat of the pants feeling be? My scrammy wont wheelie to save its life. I do have a winch and rack on the front though. What octane fuel will it need to run? Thanks for any info.

Steve Lubecki
 
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Old 04-20-2005, 11:19 PM
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Default 12.5 piston or 558 big bore

its for a predator so I doubt it but they do have good mods for your scammy at hot seat!!
 
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Old 04-20-2005, 11:23 PM
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Default 12.5 piston or 558 big bore

Nicholas Cycle Call Doug and talk to him. He can tell ya.
 
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