Turbo Oil Lines

[sledneck22]

I searched a pile yesterday and get some mixed feelings from all the threads I read about oiling the turbo. I am running a rear mount and want to build a resevoir under the turbo and just have the vacuum from the dry sump pull oil through to the turbo. I am going to return the oil to the engine into the valve cover fill but am trying to decide where the best location is for the turbo supply oil. Does anyone have any insight on where to bring the oil from to the turbo. I read some about by the pressure sending unit but would love to see some pictures of what everyone else does.

 

[rxrider]

MCX turbo kits run the oil feed from the oil pressure sensor. You will need a pump to suck the oil back into the engine. There is not enough sucktion in the dry sump to pull the oil from the reservoir. MCX has a mechanical pump that installes on the crank shaft magneto side cover.

 

[sledneck22]

Yeah and that is the debate. I think Ricky was the one saying you shouldn't need a pump if you make a resevoir underneath the turbo. I'll keep looking for addition information to add to this thread tonight when I get time at home.

 

[kimoajaj]

The MCX turbos has a reservoir underneath the turbo.
I bet Marklund at MCX would have dropped the pump if it wasnt necessary?

 

[sledneck22]

and since we are talking about lines. Where is everyone routing their lines from the rear to the front? Through the tunnel or can you sneak the oil lines underneath the gas tank? I'm hoping to keep the lines somewhere than in the tunnel but that looks to be the most open spot.
Also, the oil supply line, you can tee right off from the lines going from the top of the oil reservoir? Which hose coming out of the oil reservoir is better to tee into? i see two that a guy could use, one has a split right by the reservoir and the other is a larger hose that goes down by the oil filter.

 

[rlcofmn]

I don't have the first hand experience with the Apex I do with the Nytro, but I have 2k miles on the Nytro with no oil return pump and I am very happy with it. The idea obviously came from Push and I don't see people complaining about the lack of a pump? But as said, I have not done it on a Apex. I will be building my Apex turbo kit soon and I don't plan on doing anything different than I do with my Nytro, If it is a problem I will be happy to say so. Also on the Nytro anyways, there is a banjo bolt on the head that I use for my Oil feed since it is so much easier to get to than the Oil sender unit. Once again, I don't know if this is the case on the Apex.

 

[sledneck22]

oil

Does this look like the correct location to pull oil to the turbo?

 

[HYFLYR]

That's an Mcx breather

 

[sledneck22]

Found this picture from another source. Does this look correct? It's from a Nytro but supposedly the Apex's is located in a simalr location?

 

[sledneck22]

Well here are some pictures of the engine near the oil filter. I for the life of me can't find the right bolt to tap into. I'm sorry for my ignorance but anyone mind pointing out where the heck I should be looking for this oil supply?

 

[MRFUSION]

Okay on picture 1 on the right you have a electrical plug with a single wire going to it for your oil pressure switch. Pull that plug and unscrew the sensor very careful not to damage it. Put in a 1/8NPT male tee fitting so you can screw the sensor back into the tee and then run your oil line off the other port. Get an oil line from Powder Lites and you will get the tee and everything you need with the restrictor built in if not its easy to get from a hydraulic shop. You have enough room to route the lines under on the inside of the steering hoop and under the fuel tank. Hope this helps. That picture of the blue fitting on the oil tank is where MCX returns the oil from the turbo into the tank. Shad

 

[sledneck22]

Here is a picture of what I ended up doing.
I tried loading the pictures the other day but had problems with the files.

 

[sledneck22]

Just to sum up what I ended up doing:
1st. When you install a 1/8" x 1/4" fitting into where the oil pressure sending unit is installed stock... Don't over tighten, I did and must have half broke it off, then after riding for a while it completely broke off and I almost pump the machine out of oil...
2nd. I think a scavenger pump is a must. And don't get a cheap inline pump. I ended up buying something comparable to a Holly "Blue" vane style pump. I also installed as close to my reservoir as possible. This returned oil to my engine faster than I could pump through a .040 orifice, which is exactly what you want.
3rd. Wire your scavenger pump into your ignition key switch so when you shut the sled off, you can turn the key back to the "on" position and take out all of the pressure in the supply line to the turbo. This will prevent oil blow by on start up and unneeded pressure on the turbo seals while not running.
4th. Make sure you install unions on all ends of your lines. I failed to do this on my return line and had to rip the entire sled apart once to fix a minor leak because I couldn't spin the oil line running above the tunnel and to the engine.

I also want to add that I was able to use 1/4" stainless braided hose for the both oil lines. Some say you need a larger return than supply but with my style pump, It wasn't a problem at all.

Just my $0.02 after spending the entire weekend messing with oil lines.

I feel this setup is more than accurante for rear mount turbos, if you have a mid mount above the engine, I think you can get away with a gravity return fed return line.

Hope this helps all in question like I once was.
Kyle

 

[TurboM700]

From what I have found is you want a large return line when using the vacuum from the dry sump to pull the oil back. I used a 3/8 ID hose and haven't had any issues with it.