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Old 03-16-2012 | 05:32 AM
  #14084  
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lowlife88
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Originally Posted by grizz1
We mostly ran the stock .5mm head shim with the GX Series on 30%.
If you want a tad more bottom end snap and a little more economy you can drop to .4mm of shims on 30% no problem (running the 97T).
This applies to all the GX Series, as well as the MG66.
So just for referance incase anybody else is wondering, 1-silver shim (0.3mm) and X2 brass (0.1mm) shim for a total of 0.5mm, correct? People can get confused when it comes to shimming the head. Heck I do occasionally
Also, how's the differance when going .4mm? Is it that noticeable on the bottom end and how much does it increase the fuel milage would you estimate?
Last edited by lowlife88; 03-16-2012 at 09:09 AM.
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