modify oil pump

[teddan]

When do I need to modify the oil pump like this?

 

I am running high hp for the moment with stock pump.

 

anybody that have done this by them self? I know that titans sell pumps has these mods

[Mike2JZ]

The aim of the oil pump porting is to improve flow and get rid of some of the areas where excessive oil pressure could be bottle necked.

 

I'm not of the opinion that the oil pumps have bad flow from the factory, but porting the oil feed holes and getting rid of any casting imperfections may help slightly?

 

One thing I usually modify on the pumps is the oil relief hole located behind the front main seal, which directs excess oil back to the sump. From the factory the relief hole is quite small, and it takes 5 minutes to make this hole bigger using a drill.

 

If you wanted to replicate what Titan are doing to their pumps, then I would suggest getting a set of carbide burs that will allow you to remove any imperfections and port the holes slightly. If you really wanted to go OTT, then get some polishing burs so you can go over every area that you modified to ensure they are smooth.

 

Why do you feel like you need to modify the oil pump out of curiosity?

[teddan]

  Mike2JZ said:

The aim of the oil pump porting is to improve flow and get rid of some of the areas where excessive oil pressure could be bottle necked.

 

I'm not of the opinion that the oil pumps have bad flow from the factory, but porting the oil feed holes and getting rid of any casting imperfections may help slightly?

 

One thing I usually modify on the pumps is the oil relief hole located behind the front main seal, which directs excess oil back to the sump. From the factory the relief hole is quite small, and it takes 5 minutes to make this hole bigger using a drill.

 

If you wanted to replicate what Titan are doing to their pumps, then I would suggest getting a set of carbide burs that will allow you to remove any imperfections and port the holes slightly. If you really wanted to go OTT, then get some polishing burs so you can go over every area that you modified to ensure they are smooth.

 

Why do you feel like you need to modify the oil pump out of curiosity?

 

Thanks for a great answer!

I just want to ensure that I don't miss anything that would be able to mess up my engine. I don't have any problems today so if I have time I grind it.