T60-1 Hifi Turbo Failure...........
#11
That is turbonetics solution these days. Crank out as much turbos as possible to meet sales demands and make money at the cost of product quality. Then whenever somene complains they just fix it and send them a new one.
I would personally rather have a good turbo right off the bat. Turning wrenches all the time isn't the most fun thing to do.
I would personally rather have a good turbo right off the bat. Turning wrenches all the time isn't the most fun thing to do.
#12
[quote name='badass7' date='May 21 2005, 12:13 AM']Removed the V-Band and inspected the rear and found tons of oil lining the exhaust housing and again major shaft play. On this setup, we did away with the restrictor pill in the oil line to ensure plenty of oil flow.
So, what the hell happened this time around ?? 6 months and only driving the car on th weekends should put the mileage on this turbo at No More than 3500 miles !!!!!!!! That's just plain sickening. What could've cause the turbo failure this time around ??
[/quote]
I think you answered your own question...
Too much oil into the supply is almost as bad as too little.
Too much oil (pressure) tends to blow-by the turbine compression piston ring.
If you have taken the turbo apart, you'd understand what I'm talking about.
It takes very little to get oil to get past that compression ring.
A pressurized "crankcase" will also do the same thing.
It's more important to have a big oil drain.
You can restrict the oil supply pretty small before it starves the turbo bearings.
Remember, your FD is running very high stock oil pressures, so the restrictor becomes even more important.
-Ted
So, what the hell happened this time around ?? 6 months and only driving the car on th weekends should put the mileage on this turbo at No More than 3500 miles !!!!!!!! That's just plain sickening. What could've cause the turbo failure this time around ??
[snapback]716069[/snapback]
[/quote]
I think you answered your own question...
Too much oil into the supply is almost as bad as too little.
Too much oil (pressure) tends to blow-by the turbine compression piston ring.
If you have taken the turbo apart, you'd understand what I'm talking about.
It takes very little to get oil to get past that compression ring.
A pressurized "crankcase" will also do the same thing.
It's more important to have a big oil drain.
You can restrict the oil supply pretty small before it starves the turbo bearings.
Remember, your FD is running very high stock oil pressures, so the restrictor becomes even more important.
-Ted
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