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Old Aug 7, 2010 | 12:39 PM
  #1  
2wheelrider's Avatar
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From: Camarillo CA 60mi North of.L.A.on coast
Default liner thickness

I just bought a set of 117ci cylinders (kit) from zippers performance. One of the reasons I went with there kit was that it stated in ther add that the liners in there cylnders were .270 thick. 60 % thicker than stock. So when I looked at the thickness of the ones I just bought they did not look .270 thousands thick. So I started doing some calucations. 60% of .270 is .096 thousands... So that must be close to stock liner thickness. I measured my liners and they are only .084...or .085 thousands. Less than a stock liner! So... my question is are the liners on the zippers kit I bought thick enough to run on the 117 motor I am biulding?? Does anyone know the minimum useable liner thickness. Also this kit is ready to go (pistons fited and honed) so no more materal will be removed.
Just need to know the minimum thickness if you know...thanks
 
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Old Aug 7, 2010 | 03:39 PM
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2 mil is pretty thin,when i used to roadrace gsxr suzukis .080 after a season the cyl would have waves in it.I don't have a ton of harley experience but i would think anything air-cooled should be min 3 mil-.120
 
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Old Aug 7, 2010 | 04:47 PM
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Ask the tech rep at zippers they have always been straight up and biker friendly to me

Good luck..
 
Attached Thumbnails liner thickness-picturebike8copy.jpg  
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Old Aug 8, 2010 | 06:28 AM
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good luck getting good customer service from zippers,they forgot what it means years ago
 
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Old Aug 8, 2010 | 09:57 PM
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theres no problem at zippers if you are havin a problem pm me and i will get the answer for you
Dave at JD,s cycleworks does business with zippers all the time and they send him a crap load of builds and tunes to do. if you have any issues like i said just pm me and ill contact dave to get your answer for you.
 
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Old Aug 8, 2010 | 10:14 PM
  #6  
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Here is pic of what I use no liner here on bigger bore kits and high comp. We dont need cylinder walk. left is stock harley right is what I use.




Originally Posted by 2wheelrider
I just bought a set of 117ci cylinders (kit) from zippers performance. One of the reasons I went with there kit was that it stated in ther add that the liners in there cylnders were .270 thick. 60 % thicker than stock. So when I looked at the thickness of the ones I just bought they did not look .270 thousands thick. So I started doing some calucations. 60% of .270 is .096 thousands... So that must be close to stock liner thickness. I measured my liners and they are only .084...or .085 thousands. Less than a stock liner! So... my question is are the liners on the zippers kit I bought thick enough to run on the 117 motor I am biulding?? Does anyone know the minimum useable liner thickness. Also this kit is ready to go (pistons fited and honed) so no more materal will be removed.
Just need to know the minimum thickness if you know...thanks
 
Attached Thumbnails liner thickness-oemcomparison.jpg  
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Old Aug 9, 2010 | 05:12 AM
  #7  
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I would imagine the cylinders that you have, with the Zippers script on them, are manufactured at Axtell Sales.
They machine custom script on the cylinders for an additional 40.00/set.
Scott
 
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Old Aug 9, 2010 | 07:09 AM
  #8  
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Originally Posted by SEDELUXE
theres no problem at zippers if you are havin a problem pm me and i will get the answer for you
Dave at JD,s cycleworks does business with zippers all the time and they send him a crap load of builds and tunes to do. if you have any issues like i said just pm me and ill contact dave to get your answer for you.
i have a buddy who has a shop outside chi-town,he also dose motor builds for zippers,riders send their stuff to zippers,pay the BIG bucks,and zippers farms it out to small indy`s!! WTF!!
 
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Old Aug 9, 2010 | 01:18 PM
  #9  
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Originally Posted by prodrag1320
i have a buddy who has a shop outside chi-town,he also dose motor builds for zippers,riders send their stuff to zippers,pay the BIG bucks,and zippers farms it out to small indy`s!! WTF!!

your right about that .
thats because the small indy guys know what they are doin . once installed the zippers stuff is pretty good. at least it stays together
 
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