I was thinking of getting my D15b(VX) rods shotpeened and polished because noone make any for 1.5 besides Crower for 650 or my oddball rods d15b(VX). I'm not gonna spend 650 for a set of Crower rods being that my whole setup is running me under 250. So my only option of being getting stronger rods is to get them shotpeened and polished and I've already bought a set of ARP rod bolts for them. Now your probably wondering why in the hell are you using a 1.5? Well I like the RS ratio of the 1.5 with the d15b rods and I just a challenge and being an underdog. My little 1.5 is using almost entirely all OEM parts to build a nice high CR(11.3:1) engine with nothing but stock parts and I'm gonna have to morelikely get most of my power from this engine in higher RPM's. I got a quote of 200 for the set shotpeened and polished. So is it worth it even getting them worked on or should I just stick with the ARP rodbolts?
Setup is as followed
-B7 block and crank
-d15b rods (arp bolts)
-Y7 pistons
-Y8 2 layer headgasket
-D15bvtec head
-Z6 portmatch IM
-B16A TB

 

I wouldnt recommend it for high power apps, but it seems you are just going all motor with high rpms so it may benifit you. If your going to tear it apart and rebuild it put something good inside. JMO

 

Shotpeening only makes a rod a little bit stronger under tensile stress because it flattens and compresses the surface grain structure of the metal, which leaves a residual compressive stress in the surface and helps prevent any crack initiation sites. It doesn't do ANYTHING to make the rod stronger in compression, and since most skinny d-series rods fail by folding like a pretzel, I don't think it would do you any good. Just some friendly shotpeening factoids.