When is it time to replace to oil pump, and advise for 500HP build.

[LegitMcNasty]

Alright, I have seen a lot of information about the rb26 oil pumps, and the issues that they have. I have yet to see a definitive answer as to when is the right time to change out the oil pump. I am planning to start buying parts here, and want to make sure my list of parts is all encompassing. This is the list I have gathered so far as the route I am considering. Would a upgraded oil pump be a good idea for this build. Thanks

HKS 2530's
decatted 3.5 inch exhaust
ID1000 AEM injectors
AEM 320lb in tank
Tomei adjustable cam gears
Apexi Power FC

[FRRACER]

If you are running a conventional gear setup then if you are considering a rebuild makes sense to upgrade to a spline drive solution.

http://blog.supertecracing.com/blog/2016/02/06/rb26-oil-pumps/

[louis110]

Your mods sound fairly modest so I think you can get away with the stock pump for the time being (as long as you're not redlining it all the time). the oil pump is a pretty big engine out job, requiring the removal of the tranny and oil pan.

[Bruizer]

cool idea but man... it's too late for my engine. It's already assembled tomei oil pump it is.

[DidierAubin87]

There are several signs that you should take a note to check and know when you must have an oil pump replacement like: Clanking Noise, Impact of low oil pressure, Noisy Hydraulic Lifters, A Loud Valve-Train,... when you meet these cases, it is the time that you must do a replacement )