Re: og900twhat is largests oversize stock piston?and where - Saab Performance Bulletin Board - Saabnet.com
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Re: og900twhat is largests oversize stock piston?and where
Posted by chrisx (more from chrisx) on Wed, 7 Jan 2004 21:36:00
In Reply to: og900twhat is largests oversize stock piston?and where, mudpuppy, Wed, 7 Jan 2004 15:22:12
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2 overbores. .020 and .040 ( .5 and .1 mm). no reason to go to second. you may need it later. you will get a little more displacement but not worth losing you last overbore for it. unless you want to. :). 2080 cc i think?? over 1960?? something like that. you 'll do far better by simply dropping the c/r and raising the boost. you will have to cc that head and compare to the one that came off but i think that the specs are around somewhere here. this subject comes and goes. if the c/r is too high you can cut the piston or open the chamber or put on a thicker copper gasket. o-ringing is required then but might as well get the shop to cut the grooves while you have it apart. i put mine so that the outside radius of the wire ends at the center of the gasket seal ring. ??approx .100 from bore?? as i recall.
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