s30red240z Posted September 6, 2013 Share Posted September 6, 2013 I was thinking on new setup for my Z, this could be 4G63 1G +40 pistons on L24 rods+L28 crank, CR is about 7.2 with P90 head, pin diameter is 21mm float, and pin height 35mm What you think guys? Quote Link to comment Share on other sites More sharing options...
Xnke Posted September 8, 2013 Share Posted September 8, 2013 I'm running +1mm oversize Z22S pistons on the L24 rods and L28 crankshaft, the +2mm bore is the biggest that you can run on a stock headgasket, and allows more valve unshrouding when porting. Are those pistons available in a 88mm bore, and forgings? Quote Link to comment Share on other sites More sharing options...
s30red240z Posted September 9, 2013 Author Share Posted September 9, 2013 I'm running +1mm oversize Z22S pistons on the L24 rods and L28 crankshaft, the +2mm bore is the biggest that you can run on a stock headgasket, and allows more valve unshrouding when porting. Are those pistons available in a 88mm bore, and forgings? Forged, yes are common 4 set, bore size 85, 85.5, 86, and 86.5, in the near future i gonna over bore L24 block to fit 85mm pistons Quote Link to comment Share on other sites More sharing options...
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