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piston/bore ???

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Old Jan 21, 2007 | 02:47 PM
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Default piston/bore ???

im looking to put higher comp pistons on my b18a but want to keep the 81mm bore.Have anyone kept the stock bore without any problems etc
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Old Jan 21, 2007 | 02:51 PM
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Default Re: piston/bore ??? (jdmboi86)

yea just throw in some pr3's or p73's with a fresh hone and new rings
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Old Jan 21, 2007 | 03:17 PM
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Default Re: piston/bore ??? (dohcMONSTER)

why not bore it .5 more 81.5mm
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Old Jan 21, 2007 | 03:45 PM
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Default Re: piston/bore ??? (sdr KEL)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sdr KEL &raquo;</TD></TR><TR><TD CLASS="quote">why not bore it .5 more 81.5mm </TD></TR></TABLE>

that extra .5 isnt going to make much of a difference. only overbore if you need to get the cylinders back to round.
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Old Jan 21, 2007 | 05:14 PM
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Default Re: piston/bore ??? (doood)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by doood &raquo;</TD></TR><TR><TD CLASS="quote">

that extra .5 isnt going to make much of a difference. only overbore if you need to get the cylinders back to round.</TD></TR></TABLE>
oh yea so i dont have to bore it out i can just throw some p30 pistons in and call it a day
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Old Jan 21, 2007 | 05:37 PM
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Default Re: piston/bore ??? (jdmboi86)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmboi86 &raquo;</TD></TR><TR><TD CLASS="quote">
oh yea so i dont have to bore it out i can just throw some p30 pistons in and call it a day </TD></TR></TABLE>

it's not that simple either. depending on the condition of the cylinders you may have to overbore. if not, then a re-hone may be necessary. either way you should replace the bearings since you have everything apart.
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Old Jan 21, 2007 | 10:31 PM
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Default Re: piston/bore ??? (doood)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by doood &raquo;</TD></TR><TR><TD CLASS="quote">

it's not that simple either. depending on the condition of the cylinders you may have to overbore. if not, then a re-hone may be necessary. either way you should replace the bearings since you have everything apart.</TD></TR></TABLE>

oh yea i know but will the rehone keep the stock 81mm trying to stay at 81mm at most
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