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Old 05-18-2009, 01:29 PM   #300
3MI Racing
Former Vendor
 
Member#: 200987
Join Date: Jan 2009
Chapter/Region: MAIC
Location: VA
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yes, the 4G63 platform does have a taller rod ratio than the EJ25 and shorter than the EJ20 and should only be utilized for an apples to apples comparison without running actual numbers and forces from the difference in rod and piston weights

Its two greatest differences however are the smaller and lighter piston and the much wider oil wedge for the bearings. These help to reduce the force seen by the bearing.

Note 4" Subaru piston vs. 86mm Evo piston
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