broke Posted August 1, 2006 Report Share Posted August 1, 2006 I always forget this. Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted August 1, 2006 Report Share Posted August 1, 2006 I always forget this. Stock is 64mm 1 over or .020 is 65 so you are just a little over 1. Quote Link to comment Share on other sites More sharing options...
platinumjason Posted August 1, 2006 Report Share Posted August 1, 2006 hmm well 65.25 is .050 over. Quote Link to comment Share on other sites More sharing options...
broke Posted August 1, 2006 Author Report Share Posted August 1, 2006 I'm having a hard time getting an accurate reading from my micrometer. I have been getting around 65.17-65.20. But I can get it to read almost whatever I want it to. Quote Link to comment Share on other sites More sharing options...
platinumjason Posted August 1, 2006 Report Share Posted August 1, 2006 Hmm Id say its probably the 65.25 bore but can a piston wear that much to knock it down that much? Quote Link to comment Share on other sites More sharing options...
broke Posted August 1, 2006 Author Report Share Posted August 1, 2006 The piston can wear the bore smaller? I will have to try again in the morning. Quote Link to comment Share on other sites More sharing options...
platinumjason Posted August 1, 2006 Report Share Posted August 1, 2006 nah not wear the bore smaller but wear of the piston actually taking the thickness down maybe? I know a friend of mine had a old ass IT175 that had the original top end that had wicked piston slop from it. Quote Link to comment Share on other sites More sharing options...
broke Posted August 1, 2006 Author Report Share Posted August 1, 2006 That is actually a measurement of the bore itself, should I be measuring the piston? Quote Link to comment Share on other sites More sharing options...
sheefreak Posted August 1, 2006 Report Share Posted August 1, 2006 If you have a decent amount of time on the piston and bore job, probably better measure the piston. Are you trying to figure out what bore you are at, or if you are over tolerance? Quote Link to comment Share on other sites More sharing options...
odaen Posted August 1, 2006 Report Share Posted August 1, 2006 That is actually a measurement of the bore itself, should I be measuring the piston? 65.2mm is .050in overbore every .020in over is approx .5mm Quote Link to comment Share on other sites More sharing options...
broke Posted August 6, 2006 Author Report Share Posted August 6, 2006 If you have a decent amount of time on the piston and bore job, probably better measure the piston. Are you trying to figure out what bore you are at, or if you are over tolerance? What bore I'm at. The piston measures 65.00. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted August 6, 2006 Report Share Posted August 6, 2006 For future reference, I always refer to this site. Use the drop down to see what mm/inch measurement means what.... http://www.magicracing.com/Wiseco-Piston-K..._p_133-135.html Quote Link to comment Share on other sites More sharing options...
GYTWYPT Posted August 8, 2006 Report Share Posted August 8, 2006 Stock is 64mm 1 over or .020 is 65 so you are just a little over 1. I believe .020 over is 64.5mm I am thinking that .5mm = .020. Yep, I thought so just checked 1mm=.040 soooo .5mm=.020 I have done enough topends I shouldnt have second guessed it. Quote Link to comment Share on other sites More sharing options...
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