Author Topic: pioneer 650  (Read 3212 times)

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Offline 1manband

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Re: pioneer 650
« Reply #30 on: May 18, 2017, 08:38:16 pm »
1manband, any potential in the 650 being a race saw? ;)

...do not know.  also do not know what you consider fast/race worthy.

if you throw enough money and time at something, sometimes it works out.  everything is fast for the first 2 weeks.  that is not my plan.  will toss some money into it though.

baby steps for me.  have to put the stock measurements into the lotto machine to be able to first compare it to a more modern saw of similar motor size.  will concentrate my $ and efforts on the piston to get it into shape.  if luck is with me and it works, will hopefully lead me to some options.

just thoughts on the following, i am not a chainsaw guy so take it all with a grain of salt. some things that might not allow going crazy with this motor: iron sleeve, don't think a large overbore is possible to run anything but a custom piston.  re-sleeving maybe an option, but the aluminum around the liner kind of thin. maybe nik plating would do it.  piston is the first hurdle.  over bore would also diminish the size of the transfer ports because they breath off the base.  big end crank has a split cage bearing...maybe one piece crank could replace to run some kind of off the shelf piston. con rod little end has a big hole, piston options again are issue because so far cannot find a bearing that can neck down enough to run a more common size pin.

again, maybe all these things can be overcome easily with something i'm not seeing.  thinking so far that there must be better platforms to start from.

i'm digging this saw. just making it mine.  hahaha. fun.
hiatus

 

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