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[walter]

well, it really spins , i made a homemade rebuid installed a ebay kit ago 5-6 months, after that, turbo spooled good, bov sounds good, after i stopped the car about 5-6 months, last week received a ecu and then made a basemap, turbo spin but this time i dont see any boost, today i even put antilag (using crome pro) and it doesnt get boost, not close to zero even, i assume turbo is dead already , does it? checked wastegate, it works good, not rusted ,etc. and i saw testing the car today a bit oil in the compressor... engine is D16 Vitara/eagle using T28 garret from SR20DET.

[dvst8r]

Exhaust leak, charge tube leak, or restricted air filter.

[walter]

really everything worked before, everything was as the last time that car were tested, not exhaust leak, not ic piping leak and there isnt any filter there, i have to say i tested the car in "industrial park" , not in the street, car is not legal for to go the street yet but it worked before! i was thinking about the new journal bearings or anything was not working good and when i revved engine turbo didnt spin correctly, could be that possible? i need a turbo and right now im looking for a ebay knockoff turbo 

[dvst8r]

How much axial and radial play? Has either the turbine wheel or the compressor wheel come in contact with the housing? It still spins when the car is idling?

[walter]

yes, after at idle it didnt spin sometimes but right now it does..before any shafplay and right now there is a very little shaftplay..really weird..

[HiProfile]

When cold you will get a few thousands of side to side play, and very little in and out play. A t28 should spin at idle, but that's nearing the size where it's possible a d16 may not. Mine is only a 36lb/min turbo with a .48 a/r turbine housing, and sometimes if I start up when the car is warm it won't spin til rev'ed a little.

It takes a very small exhaust or charge pipe leak to keep it from spooling. I recall someone who replaced a blown gasket between the manifold and turbo (cheap gasket), and in 5 minutes the new gasket was blown. A 1" wide by 1/32" gap (25mm x .8mm) was enough to keep it at 0psi at redline.

[PhilStubbs]

Sounds like a boost leak. I have an old oil filter I put a hole in, use a coupler and put the filter in the inlet of the turbo, put a hose from an air compressor into the filter. It will pressurize everything and you can find your leak.

[nock]

wg link arm fell off. just wondering if you checked.

[walter]

remove wastegate for cleaning, it's ok, i haven't much time to check that but what i have to say is , there are any leaks in IC piping and exhaust...could be that turbo is something like "seized up" ?  i means turbo doesnt spin good when i rev up the engine? anyway i hope to check again everything...

thanks for the replies.