4G63 vr4 block

[khoyos]

stock engine with stock turbo with stock boost is the most long lasting. modification mentioned in previous post #13. of course la compression ratio higher

 

[flushafteruse]

khoyos ure using evo7 piston arrr???? hehehe

 

[jo1]

no, complete internal vr4, except pistons only evo.
explanation for jo1 n jinkl's statement
if u notice, vr4 conrod is thicker than evo conrod. so obviously at the piston pin, vr4 has bigger area compared to evo. so u have to machine the evo pistons(rebore at piston pin hole), in order for them to be fitted to vr4 conrod.

vr4 conrod better than evo conrod, but evo pistons better than vr4 pistons. so combine them in a vr4 block. better do it during overhaul only, as it is a tedious job. if ur block is healthy, not necessary. so many people in malaysia have cracked the 400whp barrier using 100% stock (but healthy) engine block...

don't machine the piston just machine the conrod...... evo piston with vr4 conrod is the most common upgrade for 500hp but the machining work had to be done to the conrod or maybe need to hone the block.