1989 Mazda RX-7 GTU

Q1) I'm trying to keep my engine bay as clean as possible, so I removed a lot of vacuum hoses. Where do the vacuum hoses go that are on the back of the oil injectors? Any idea of the PSI?

Q2) I have a friend who can make hydrolic hoses for free, so I had the thought to replace my oil-cooler lines. The question is, is there any benifit or harm done by changing the size of the line? ( IE: larger/smaller oil cooler lines )

 

The lines from the oil injectors go to a plastic splitter that groups the vacuum source from one 6mm hose to the 4 hoses going to the injectors. What do you mean by "any idea of the PSI"? - that makes no sense.

I don't think you're really going to gain anything by tinkering with the size of the oil cooler lines. Also, fabbing oil cooler lines is a bit of a pain - they have to line up exactly or installation is a major pain in the butt.

Dale

 

Damn, i wish i had a friend that could make me hydrolic hoses for free... That would make the african american engineering taht im going to have to do to my car a lot simpler.

 

Well, think about the oil injectors... they inject. There's force behind the oil, otherwise they would suck the oil back into the "vacuum" hose. It's not a vacuum if there is positive pressure ( which I believe there is )

As for the hydrolic hoses; they would fit. The guy is an engineer @ a major production facility.



Anyone else? Someone who might have some experience, etc?

 

the hoses on the Oil Injectors go to a 4 way splitter that connects to a 6mm hose that connects to a nipple on the back of the intake manifold. The PSI in those hose would be how much ever PSI is in your manifold.


Oil cooler lines only the obvious to say abou that. If you go to small you could starve the engine for oil and if you go to big maybe the same because the pressure regulator could not keep up.