[BALLAJL15]

Originally Posted by dmz

BallaJL15,

Since there was no damage to the engine. How much the turbo replacement ended up costing you?
I still think that is BS that they would deny warranty for having a catback exhaust. But of course now that you posted about your mods on this public forum, I am sure the dealer already know about your other mods by now...

The dealor could honestly care less about the mods... They were on my side the whole time. It was the North American rep that denied the warranty because the car had modifications that reduced back pressure. The service advisor that I go through at Steve Thomas is very good and he did everything he could to divert the attention away from any mods I had done.

[undecided]

Originally Posted by BALLAJL15

The dealor could honestly care less about the mods... They were on my side the whole time. It was the North American rep that denied the warranty because the car had modifications that reduced back pressure. The service advisor that I go through at Steve Thomas is very good and he did everything he could to divert the attention away from any mods I had done.

BMW USA is paying the bills.

[undecided]

Originally Posted by scalbert

I wouldn't jump to conclusions though. Based on other posts, BMW is aware of this matter and is working on rectifying it. With the number of N54's that will be on the road soon, it is imperative they get this right. The sound, although does suggest bearing wear, isn't an imediate death warrant.

Sounds like the problem is spreading as more N54s hit the market and as more mileage is put on the existing fleet.

[undecided]

Originally Posted by T Bone

Out of curiousity.....

Even though these turbos are water cooled......

Are people (specially the ones with whiny turbos) waming up and cooling down their turbos properly?

Hard to believe that the turbos would have issues this soon.

[Crimson92]

Originally Posted by undecided

Hard to believe that the turbos would have issues this soon.

first year or production, bound to have its bugs

[undecided]

Originally Posted by Crimson92

first year or production, bound to have its bugs

So, almost 2 years. And, turbo failure is not a "bug". Something like rough idle is a bug.

[T Bone]

Originally Posted by undecided

Hard to believe that the turbos would have issues this soon.

Oil coking is oil coking. As an old turbo guy, I warm up and cool down properly. Watercooling is just a preventative measure.

I wonder what the oil temp was when BallaJL15 first beat on the car.

[undecided]

Originally Posted by T Bone

Oil coking is oil coking. As an old turbo guy, I warm up and cool down properly. Watercooling is just a preventative measure.

I wonder what the oil temp was when BallaJL15 first beat on the car.

and my oil temps have never gone past 230ish

[T Bone]

Originally Posted by undecided

and my oil temps have never gone past 230ish

If you turbo is smoking hot when you shut down, you will coke your oil which could cause many of the problems we are seeing. Conversely, if you beat on the turbos while the oil has the viscosity of snot, you can damage the turbos too.

The watercooling jacket is great but it doesn't replace warmup and cool down procedures.

[Orb]

Originally Posted by T Bone

If you turbo is smoking hot when you shut down, you will coke your oil which could cause many of the problems we are seeing. Conversely, if you beat on the turbos while the oil has the viscosity of snot, you can damage the turbos too.

The watercooling jacket is great but it doesn't replace warmup and cool down procedures.

It actually does not matter what method the radiant heat is removed, so in this case, water cooling is okay if it was designed with this purpose in mind. Oil coke problem will be very easy to see in any case.

Orb

[T Bone]

Originally Posted by Orb

It actually does not matter what method the radiant heat is removed, so in this case, water cooling is okay if it was designed with this purpose in mind. Oil coke problem will be very easy to see in any case.

Orb

The 944 Turbo was one of the first cars to run an electric water pump to remove heat from the turbos after the engine is shut down. The N54 does that as well but physics is physics, if the turbo is stinking hot, it will be hard to remove the heat from the turbos.....if you don't do that, oil cokes.

When I see people beating any cars when the oil temp is below 80 degrees celcius, I want to beat them. If some one honks on the turbo while the oil is cold and viscous, the turbos won't have sufficient lubrication, which will screw up the bearings which leads to turbo whine....

[stressdoc]

Northerners....

[stressdoc]

Originally Posted by BALLAJL15

The dealor could honestly care less about the mods... They were on my side the whole time. It was the North American rep that denied the warranty because the car had modifications that reduced back pressure. The service advisor that I go through at Steve Thomas is very good and he did everything he could to divert the attention away from any mods I had done.

Just a hypothesis -- the BMW NA rep and field engineer knew more about your car than the mere presence of the exhaust. But they are not yet ready to divulge what they know or how they know it.

[wj4]

Bimmerfest was today, did the owner of the car show up with the turbos?

[undecided]

Originally Posted by T Bone

If you turbo is smoking hot when you shut down, you will coke your oil which could cause many of the problems we are seeing. Conversely, if you beat on the turbos while the oil has the viscosity of snot, you can damage the turbos too.

The watercooling jacket is great but it doesn't replace warmup and cool down procedures.

And it did not have the fancy cooling that the 335 has. And I did not do anything special to cool it off unless I really drove it hard. And, the 335, other than a few (4) 1/4 mile runs, I babied it, drove it under 5k rpm most of the time.


p.s. My Eclipse was heavily modded as well. Was making in excess of 300hp and 300lb/ft from the stock 2liter engine &turbo.

[BALLAJL15]

Originally Posted by wj4

Bimmerfest was today, did the owner of the car show up with the turbos?

Yes I was there. At the end of the day I was over with Shiv and all the V3 installs. As I had mine installed.

[freddiemac]

Originally Posted by T Bone

If you turbo is smoking hot when you shut down, you will coke your oil which could cause many of the problems we are seeing. Conversely, if you beat on the turbos while the oil has the viscosity of snot, you can damage the turbos too.

The watercooling jacket is great but it doesn't replace warmup and cool down procedures.

Actually, this is not the case with high quality synthetics. My friend used to work at Garrett (biggest turbo maker in the world) said that in testing over heated synthetic oil turns into harmless ash, does not have the coking problem associated with dyno oil.

I've said this before (on other boards) and I'll say this again:
Turbo timers are pretty much useless gimmics.

[hotrod182]

Originally Posted by freddiemac

Actually, this is not the case with high quality synthetics. My friend used to work at Garrett (biggest turbo maker in the world) said that in testing over heated synthetic oil turns into harmless ash, does not have the coking problem associated with dyno oil.

I've said this before (on other boards) and I'll say this again:
Turbo timers are pretty much useless gimmics.

I think most cars don't have the benefit of an electric waterpump that will continue to circulate coolant even after the engine is shut off.

Also on most websites, including Garrett's, they say the turbo whine is actually cause when the bearing gets so bad, the compressor wheel actually is rubbing against the housing...possibly leading to complete failure..YIKES!

[wj4]

Originally Posted by BALLAJL15

Yes I was there. At the end of the day I was over with Shiv and all the V3 installs. As I had mine installed.

What did Shiv said that was the cause of the failure?

[BALLAJL15]

Originally Posted by wj4

What did Shiv said that was the cause of the failure?

He called the designer of the Garret turbos for what could have possibly happened and he said that you wont know for sure untill you take it apart.

[Dascamel]

Pics?

[wj4]

Originally Posted by BALLAJL15

He called the designer of the Garret turbos for what could have possibly happened and he said that you wont know for sure untill you take it apart.

I see..so are you going to take it apart? LOL.