I've done extensive searching both on here and G35driver. The query builder doesn't seem to like the combination of both JWT and Vortech, nor does it return many results when I just do a search for oil pan spacer. Maybe I'm missing something.

Anyway, could the JWT oil pan spacer be utilized as an oil return for lets say a Vortech SC? I know its a gravity feed back down into the upper oil pan which makes most sense, but doing it this way would be nice to not have to drill the upper pan. ( I've sold my blower to a buddy and want to install it a little more dignified ). I'm not sure if that spacer lies directly into the oil itself, from looking at it it certainly looks that way.

Has anyone done this and if so, will there be anything additional i'll need besides the spacer?

Appreciated

 

i would venture to guess that the spacer would be at the level of oil, or very near it, and you would have problems with drainage. it is drilled in the upper pan now, because it is way above the oil level. i would keep the return in the upper pan, or get one of the aftermarket pans with the "wings" which spread out the footprint of the oil and make the level lower.

Chad

 

I figured... Pans like the APS and Greddy have the return lines on top of the pan, I take it that all engine oil resides below those return holes inside of the pan itself? I find it hard to believe you can fit 6 quarts in the lower pan itself, maybe i'm wrong.

 

it doesnt matter if you drain the return oil lower then the oil "sea level". especially when its coming from something so high up, like a supercharger. As long as the oil outlet of the device is a litter higher then the sea level is what matters.

Greddy RSX Turbo kit replaces the oil drain plug with a large banjo bolt and your return oil goes in there. The height in which you bring back the oil in the pan has no effect... the only thing that matters is how high the device is compared to the oil level, and that the oil drain has a decently downward flow.

 

Ah, the Dr. has spoken. Thanks phunk, i'll proceed to get the spacer.

 

I did the same and tapped my JWT spacer for the return on my Turbonetics kit. Good to hear that I did the right thing.

 

also just make sure that the return line and fittings that you use have a nice large inside diameter.

 

I believe that JWT taps their spacer for the TT setup. Yep, just looked up the spacer on their website. It has a pic of how they tap into the spacer.

 

i guess if it works, it works. my concern, however, is that the oil return is only acted upon by gravity, and it is not being pumped back into the pan. if you are returning oil under the oil level, then there is positive pressure on the return, and you may see some backup within the return line. this could lead to coking on a turbo.

 

Well, it is being pumped isn't it? I mean, where is the pressure dropped at? Doesn't the Vortech tap into an oil galley (which has oil pumping through it)? Unless there's air in the line, wouldn't the oil be pushed through the Vortech's lines to the oil pan? Just thinking out loud here.

 

On a Vortech....the oil is pumped to the blower unit and is sprayed onto the gears . Then it flows back to the oil pan thru the return line and that is a gravity feed line .

 

your forgetting that gravity will level out the oil in the return hose and that it will not back up beyond the height of the oil level inside the pan... unless you use too restrictive of a return hose / fittings.

 

OK i'm sold. that's a good point.

Chad

 

Is your T-netics install complete? If so, I haven't seen anything about it, and I am VERY, VERY disappointed in you for not sharing with those of us who are waiting on our kits to show up.

 

If I can remember anything from school then Phunk is right. The oil will not back up to the SC unless the pipe it is coming through is restrictive in size. The oil will only backup to the elevation of the oil in the pan. When you have a discharge (supercharger) at a higher elevation then the outlet (oil pan), the fluid will build its own pressure. This is called pressure head. The higher the discharge is the more pressure will be built up at the outlet; therefore the oil will push its way into the oil pan. Only problem I could see with this is that if the discharge pipe is not large enough and the oil will not have enough pressure head to keep up with the rate that the Supercharger needs to discharge the oil. Thus causing it to back up. I’m not sure at what rate the Vortech charger needs to discharge the oil so it is hard to say if you will have a problem. Maybe call Vortech and ask them if it matters how fast the oil is discharged from the blower.

Here is a Video on how pressure head works
http://www.ap.stmarys.ca/demos/conte...%20pipe_HR.wmv

In the video if he/she was to punp the water in faster then the holes and pressure will let it out, then it would overflow. That is was will basically happen if the oil can not reture quick enough to the pan. It will backup to the superchager.

Correct me if I'm wrong please

Rob

 

What ever you do, don't tap into the JWT spacer for a Vortech SC. The return has to always be above the top level of the oil in the oil pan. This has been dealt with on this board at least a hundred times. Do a search for past posts on this matter.

 

Like I said big guy, I did an extensive search. Please, humor me by trying it yourself.

 

I'm not quite done with the install and am putting on the finishing touches. I'll post some info hopefully within the next couple days.

 

hey narkotic,
whether tapping the spacer works or not, it certainly isnt that much more work to drill the upper pan. especially in your case, where it is already tapped. i understand that fluid will equalize to the level of the bigger reservoir (hell, i have a degree in mechanical engineering, and studied fluid mechanics) but why not take the route that is guaranteed?

phunk,
i'm not stepping on your toes here, because i still agree that both ways will work. i think that the upper pan is just safer.

Chad

 

dont worry about it, i dont personally care where he does it!

but i know my turbos on my Z are draining back into the lower pan about level with the drain plug... no problems at all.