i would like to hear your thoughts about shot peening rods

is it effective?

exactly how stronger can be a shot peening rod than a stock rod

(ie a shot peening rod can be 30% stronger than the stock rod)

 

Waste of time. If you have the block taken apart fork over the 300 to put a H beam in there. Also you cant use a stock rod on a aftermarket piston without machining it to fit the wrist pin. Your definetly gonna want to change the piston for most turbo applications. my .002 do it right the first time you dont wanna destroy your block

 

Is it effective, yes. It eliminates stress risers making them less likely to break. How much stronger, not much. Waxing a bad paint job just makes for a shiny bad paint job. So something that was designed to work at 160hp is just that.

 

^ Agreed. Moreso just a part of doing a proper detailed prep or blueprint rather than trying to increase the strength of the rod. Waste of time though? I disagree, but I guess that depends on what you're trying to get out of it.

 

x2


IMO, the surface prep/coatings can give the extra 1% you are looking for in max effort HP engines . . . they cannot compensate for design flaws or shortcomings.

Shot peening (and other types of surface finishing) do work as intended to eliminate most of the stress risers on a surface but they don't magically keep stock rods together unfortunately.