bad oil system

[95blkprobe]

So as most of us know, we have a bad oil system. We have the opportunity to run a doc b system which I also have with the awr deep sump oil pan. After 7k on my built motor (1k on full synthetic) I lost another rod bearing which happen to be our favorite #3 bearing. I've been toying with the idea of a dry sump system or even having the oil pump push oil into the block in that side of the motor (flywheel side), yet the oil channel in the back of the block is blocked back the starter. I have been researching an accusump system to help with cold starts and such. Any opinions or ideas? Thanks.

Also have been considering chamfering the oil holes in the crank to a larger diameter

 

[HKPRO5]

^ Interesting,

 

[BRIAN_MP5T]

Also have been considering chamfering the oil holes in the crank to a larger diameter

The holes in the crank are HUGE already.. I see no improvement to be had.

 

[StealthWyvern]

What about a crank scraper? Would this actually help? I don't know really anything about these to be honest.

http://www.crank-scrapers.com/Mazda_FS.html

 

[BRIAN_MP5T]

Those would remove oil on the outside of the crank... he is trying to put more oil against the bearings...(Inside between the crank and the bearing, the super thin layer of oil)

 

[AusOrion]

The holes in the crank are HUGE already.. I see no improvement to be had.

Interesting. It has been suggested to me that opening up the crank holes would be beneficial. This was in the context of having a 7,500 rpm redline.

 

[BRIAN_MP5T]

Fine, but then you are also weakening the crank by drilling into it...

There is like a 1 thousands of an inch of oil between the Crank and Bearing, you are talking about the ONLY place in the motor where it actually needs to be precicely perfect.

The takeaway here is think about the thickness of the oil, then think about 50PSI of pressure on that oil, then think about the size of the gap that it has to pass through...

It's not like it is starving for volume... like it's bleeding out of the crank all over and there is a drop in volume... Those holes are not going to supply more volume of oil through the main/rod bearings even if they were twice the size because there is no room for it.

I will do some more research on this suggestion because I actually find it really interesting..

 

[js_protege_03dx]

Sub!

 

[ajkulish]

what would be the benefit of the crank scraper?

 

[StealthWyvern]

what would be the benefit of the crank scraper?

Honeslty no idea. Its something I found while going a search on the FSDE oil system awhile back. I mean i know it has to do with keepign oil in the oil pan but thats really about all i know about it. I can't even tell you if its a gimmick or not.

 

[ajkulish]

alll i could think is that it removes oil upon rotation so when the crank is at the top 180* of its rotation it would have slightly less weight, causing less resistance. but im really not sure.