***Blackonorange's STS Turbo Build!! - Done by Speedtech Saskatoon***

blackonorange

Other guys with the STs kit, you Guys ever run with your air filter cover off? And does it make a difference?

Chinook

I never use the rain sock, the filter is covered pretty well by the shield. However I don't usually drive in the rain much. And I am currently using JWT clutch and flywheel and have not experienced any problems, seems to be holding up pretty good.

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09 Touring/Nav 6MT Carbon Silver STS Turbo

blackonorange

What's your afrs at at wot

Chinook

I am just in the process of moving my sensor to behind the turbo as recomended by sts. I also just installed water/meth last weekend and am waiting to get a tune, sounds like hopefully by mid may I should be all ready I will let you know as soon as I can. When I pulled the rain sock off it seemed pretty restrictive but I honostly don't know if I noticed much of a difference, it's been a while.

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09 Touring/Nav 6MT Carbon Silver STS Turbo

blackonorange

Bad news guys, the head gasket went...... Post pics later

Dembflyr

Ouch! Sorry to hear that.

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2012 G37S Sedan 6MT - Project Practicality

2009-6MT-Sport/Touring-Dembflyr's Journal-TT Build Thread-CAR IS SOLD

blackonorange

Well it's weird, now that we've thought about it it's spitting oil out the back , so we've come to the the conclusion it's a seal in the turbo, the weird thing is that It threw a service engine light :s, would Low oil pressure throw this light , we fonna uprev it Tommorrow to find out but as it sits right now we gonna expect the worst and assume its head gasket.

Mr.Squeeze

A headgasket at such low boost I would doubt that. I really hope its not that, what color is the smoke out the exhaust ?

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Driven Motorsports Single Turbo 7675 T4 1.32 A/R 995WHP 780TQ

blackonorange

White/ blue haven't driven since it happened

O&G

compression test? Doubt it's the headgasket

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O&G's Build/Journal <---(1st lowmount single turbo treeseventy)
Built Engine Thread
2011 F-250 Build/Journal

96bigbody

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?

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09 370z Pw 7at touring sport nav...
02 Som trans am ws7.. 408 & T76
96 black impala ss.. 396 & juice

blackonorange

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 : (

tower74

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

96bigbody

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.

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09 370z Pw 7at touring sport nav...
02 Som trans am ws7.. 408 & T76
96 black impala ss.. 396 & juice

Boosted Performance

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?