Eh, if you're building for boost, I'd look at CONNECTING ROD availability before thinking about Rod stroke ratio.
The PM3 based blocks have rods available to them
The P08 based blocks DO NOT unless custom ordered=$$$
ls rods would kind of be pointless i would think. just go with a rod meant to be in the D, that way you keep the stroke (one of the advantages of the D) and you have a very strong and durable rod you can count on.
But using an LS rod won't change the stroke, it's just cheaper to make them fit than go get some forged items. The one thing is with them being heavier than a D rod will the trouble of going for a 1.62 R/S be pointless or won't it matter?
If we forget about the choice of rod and concerntrate on the R/S, is better to go 1.62 on boost or stay at stock 1.59?
Lengthening the rods does very little to impact pistons speeds or acceleration. Rod/Stroke ratio also tells you very little about piston speeds or acceleration. Here is a graph of what you are proposing. Notice that the curves are practically right on top of each other.
So while it is technically "better". Look at the graph yourself and determine if it is worth the trouble.
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