blubyu
Expert Class
Posts: 209
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posted April 11, 2006 05:13 PM
BB Kit
OK...I know this is like beating a dead horse that's been buried and rotting....but.....
JE 1287 kit and Muzzy 1270. Beside the 17cc difference... Who has the better performance? I've heard that the 1270 has better rings, less friction and has consistantly put of a little more hp. Anyone out there with experience with both kits?
  
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inxs
Parking Attendant
Posts: 11
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posted April 11, 2006 06:49 PM
The important differance between the 1270[Wiseco] and the JE1287, is the compression ratio-13.5 to 1 vs.13.0to 1.The 17cc differance [less than 2% ] means nothing to a normally aspirated zx12.The half point more comp. is why the 1270 makes more power. Rings are the same thickness between the two--top=1mm, middle=1.2mm,oil ring=2.8mm.Save yourself some cash and send your block directly to Millenium Technologies and they will bore/replate it.They will fit it with either JE1287 or Wiseco1270-your choice.Millinium does Muzzy's boring& plating.
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blubyu
Expert Class
Posts: 209
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posted April 11, 2006 07:03 PM
inxs,
Thanks for the info. I thought I saw the 1287 offered in a 13.5 cr also..
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psycho1122
Pro
Posts: 1608
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posted April 12, 2006 06:09 AM
The Muzzy 1270 uses JE Blanks and Muzzy puts his own cut on them to utilize the thin 1mm rings.
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You say PSYCHO like it's a BAD thing!!
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