:iagree:

This is common with sts.. That's why I tell people to go with the oil-less turbo if running the butt mount. How big is your air filter? The check valve working?

White/ blue haven't driven since it happened

What's common ? Seals going? My air filter is the one it came with idk the size is and I also don't know what the check valve is : (

You might want to check the your oil lines running to the back feeding the turbo. If it's spitting the oil into your turbo that could be creating the issue or the pump is clogged up and creating a back flow issue. Check all the connections. Look at the little blue thing (your pump for the turbo) which is located in front of the turbo bolted to the under belly of the car.

Really, again with this :bowrofl:? My guess would be if that's the case will most STS kits they would no longer be in business.

I would not recommend oil-less turbos on a street car. They are built for the drag strip.

I have sold almost 30 mid mount systems for the 350z, and not once has there be an issue with the oiling system. I do however use a pump that is 3x the cost of the pump that STS uses.

More importantly, I use brand name proven (Precision) turbos. Who makes the STS turbos? There is no "brand/manufacturer" stamp is there? If they are not made by Precision, Garrett, BW, Turbonetics, Holset...ect. where do they come from?

I know plenty of people/cars who run oil-less turbos on a DD w/ no issues. Not saying it's better than oil, but it is a nice alternative. I've got about 4k on mine, inspected it the other day, no crazy shaft play, still spinning like a champ.

They build them in house when you buy the kit

I also don't think it's the pump either , we just hopin it's the seal on the exhaust side

Having issues? Call STS . I will let Vernon know that your having issues.

I don't know how much Vernon would be able to help him. I hope it's something simple man, I'll be taking mine in next week to a real tuner to see what kind of numbers @ 9psi it'll give me.

Vernon can direct it to Rick. Rick has helped me a couple of times with the kits we installed and helped out. The kit boils down to the tuning. Tuning it the biggest thing with these cars and making sure the parts are installed correctly.

It's not the tune it's the turbo 99 percent sure , the other 1% is head gasket

Wow you're an idiot. I've been around sts kits since the first ones came out. Now please go away so I can help.

The oil inlet to the turbo has a brass piece in it with a check valve. This valve is intended to keep the oil from flowing into the tubo housing after the vehicle has been shut down. If it does fill up the housing over half way it is possible for oil to flow past the bushings into the exhaust/intake compressor housings. On start up this oil will be forced out the exhaust or into the intake. The idea is to test the operation of the check valve.

And the filter.."The K&N Pre-charger filter cover is for normal driving use to keep the filter clean during wet and/or dusty conditions. This cover has nearly 1/10th of the surface area of the actual air filter and is restrictive to air flow. The turbocharger will pull air through this cover by creating a vacuum between the filter and the turbocharger. If the cover is dirty, this vacuum will completely collapse and destroy the air filter. This high vacuum will also suck oil from the center section of the turbocharger into the intake piping. Remove the Pre-charger filter during any hard acceleration, racing, and or dyno runs. Any restriction in the air filter or cover will cause intake temperatures to rise dramastically during boosted conditions."


Check Valve Test:

1.) Take off the braided oil suppy line at the turbo center housing.
2.) Remove the check valve from the turbo and re-attach it to the braided oil supply line
3.) Place the line over a drain pan and start the vehicle. Let it run for a few seconds until there is a flow of oil through the chack valve.
4.) Shut off the vehicle and place the line and check valve on a few sheets of newspaper. There should not be more than a drop or two of oil leak out of the check valve onto the newspaper.
5.) If it leaks more than a drop or two of oil then get hold of STS and have it replaced. They will probably warranty it if the system is not too old.
6.) If it does not leak re-install the fitting and oil line to the turbo and get hold of STS about possible repairs that may be required to the turbo.

Thanks for the info, now I know who not to buy from.