[doodlebro]

Well, it finally happened. Blew the turbo on my N55 last night after a meet. Everything was running like butter but on the way home I took a pull and got hesitation at the top of third.

Towing to BMW and hoping they work with me, I'm still within the CPO warranty.
If everything but the turbo checks out, I will likely go PS1. Curious if there's any other offering that fit our chassis though. Not looking for the power or turbo lag that PS2 brings.

[ThomasR]

Stock FMIC?!?

[x3sm]

How....

[TheCoolX3]

Fearful mine is on the way out also. I flashed my stock tune and put on my stock downpipe. Taking my car to the dealer this week in hopes of a new turbo! If they wont warranty it i'm gonna go PS2

[Polo08816]

Originally Posted by doodlebro

Well, it finally happened. Blew the turbo on my N55 last night after a meet. Everything was running like butter but on the way home I took a pull and got hesitation at the top of third.

Towing to BMW and hoping they work with me, I'm 900 miles out of warranty.

If everything but the turbo checks out, I will likely go PS1. Curious if there's any other offering that fit our chassis though. Not looking for the power or turbo lag that PS2 brings.

Yes, but it would not be covered by warranty anyways because it looks as if you had a tune and downpipe.

Is there any evidence to support the notion that an aftermarket turbocharger will last as long with a tune as a original turbocharger would on an un-tuned car?

[doodlebro]

Originally Posted by ThomasR

Stock FMIC?!?

Yes, but it's boost season in CO. Glad I waited to install the new one, it'd be full of oil right now

Originally Posted by Polo08816

Yes, but it would not be covered by warranty anyways because it looks as if you had a tune and downpipe.

Is there any evidence to support the notion that an aftermarket turbocharger will last as long with a tune as a original turbocharger would on an un-tuned car?

Looking into it, I think I'm still covered by the CPO warranty that extends to 75K, so that should be a bit easier to deal with. I have always had the car at stock when returning it, so we'll see what happens. I'll have more this afternoon.

[Riick]

Warranty is only for factory defects, they don't cover premature wear due to abuse.

[TheCoolX3]

Originally Posted by Polo08816

Yes, but it would not be covered by warranty anyways because it looks as if you had a tune and downpipe.

Is there any evidence to support the notion that an aftermarket turbocharger will last as long with a tune as a original turbocharger would on an un-tuned car?

Some dealers, like mine, are incredibly mod friendly. That is how my turbo will be replaced under warranty.

The PS2 turbos are built for some abuse. I'm sure they are equally safe with a proper tune as a stock turbo on stock tune.

[Polo08816]

Originally Posted by TheCoolX3

Some dealers, like mine, are incredibly mod friendly. That is how my turbo will be replaced under warranty.

The PS2 turbos are built for some abuse. I'm sure they are equally safe with a proper tune as a stock turbo on stock tune.

I'm skeptical of this. Perhaps there may not be too noticeable of a difference for daily driving and the occasional short acceleration.

I'm not nearly as confident that an aftermarket setup like this would be as reliable at HPDEs when a car is being shared in back to back session. Potentially 40+ minutes of driving the car at its limit.

My personal observations at the track are that powertrain modified cars that are making substantially more power than stock powertrain cars are inherently less reliable and experience issues far more frequently.

[TheCoolX3]

Originally Posted by Polo08816

My personal observations at the track are that powertrain modified cars that are making substantially more power than stock powertrain cars are inherently less reliable and experience issues far more frequently.

I think that will always be the case. Modified cars will always be less reliable. From everything I have seen and experienced, Pure turbos are about as reliable as you can hope for but anytime you make more power over stock you're much more likely to kaboom

[x3sm]

Strange that the turbo went so early on your car. My old 335 N54 was tuned stage 2.5 with OFT for 65k miles on stock turbos with downpipes, never an issue with turbos. I sold it at 92k and the guy after me still beat on it for a while.

[Polo08816]

Originally Posted by TheCoolX3

I think that will always be the case. Modified cars will always be less reliable. From everything I have seen and experienced, Pure turbos are about as reliable as you can hope for but anytime you make more power over stock you're much more likely to kaboom

It's refreshing to see a realistic view. There are plenty of uninformed clowns out there thinking their tuned 335i will be able to operate at the limit for as long as a stock M2/M3/M4.

[doodlebro]

Originally Posted by x3sm

Strange that the turbo went so early on your car. My old 335 N54 was tuned stage 2.5 with OFT for 65k miles on stock turbos with downpipes, never an issue with turbos. I sold it at 92k and the guy after me still beat on it for a while.

I agree, and I think this would have happened regardless of the tune and was just waiting to happen. Fortunately everything else on this engine has been rock solid, so if that's my only problem before the water pump goes out I'll be pleased.

[x3sm]

Originally Posted by doodlebro

I agree, and I think this would have happened regardless of the tune and was just waiting to happen. Fortunately everything else on this engine has been rock solid, so if that's my only problem before the water pump goes out I'll be pleased.

Agreed!

[Riick]

Originally Posted by Polo08816

It's refreshing to see a realistic view. There are plenty of uninformed clowns out there thinking their tuned 335i will be able to operate at the limit for as long as a stock M2/M3/M4.

HA, funny you say that. You see all these 22yo's buying first gen 335's, cranking the JB4 to max bragging about how they're as fast as an m3 then wondering why their 2007 $5000 used 335i with 150k miles blew a turbo in two weeks.

[Polo08816]

Originally Posted by Riick

HA, funny you say that. You see all these 22yo's buying first gen 335's, cranking the JB4 to max bragging about how they're as fast as an m3 then wondering why their 2007 $5000 used 335i with 150k miles blew a turbo in two weeks.

If it was as easy as a tune to make a 335i produce M3 levels of power with the same reliability, factory engineers, who are real engineers (not your driveway mechanics), would have already done so.

[agentorange]

Originally Posted by doodlebro

Yes, but it's boost season in CO. Glad I waited to install the new one, it'd be full of oil right now
.

Isn't it always boost season at 5000+ feet ASL?

[doodlebro]

Originally Posted by agentorange

Isn't it always boost season at 5000+ feet ASL?

Nah, just once it cools down, so roughly October-March. In summertime it's wicked easy to get heatsoak on the stock IC and a stock tune alone.

[Riick]

Originally Posted by Polo08816

If it was as easy as a tune to make a 335i produce M3 levels of power with the same reliability, factory engineers, who are real engineers (not your driveway mechanics), would have already done so.

Tell that to every member under the age of 30 that posts in e90post, they believe otherwise lol

[doodlebro]

Update: Definitely a turbo failure. Dealership is taking apart and said if they find any reason my aftermarket parts caused it, they cannot warranty. At this point it sounds like we're good (though I'm still cautious).

I don't think a BMS intake, FTP chargepipe, and VRSF downpipe would cause a turbo failure

[TheCoolX3]

If you unplugged the battery before you brought it in it would hide most if not all evidence of a tune. I do that anytime I bring the the car in just for good measure. If they try and say anything about the hardware you could definitely argue that all of that actually makes it much easier on the turbo. Not having to fight through a cat and an intake to help it breathe all makes its job easier. I doubt they will get screwed.

My dealer is very cool about mods. I went there once to get tires on (breaking my own rule, I had my tune on) and basically I had half of the sales team, two service advisors, and the majority of techs admiring my SUV shooting flames! I called my advisor the other day to see if I could get my turbo looked at for the hissing sound and he said its probably going to have to be replaced under warranty!

The dealers (In my experience) don't like to screw their customers plus they typically prefer warranty work because they get paid internally and its just less of a headache.

Originally Posted by doodlebro

Update: Definitely a turbo failure. Dealership is taking apart and said if they find any reason my aftermarket parts caused it, they cannot warranty. At this point it sounds like we're good (though I'm still cautious).

I don't think a BMS intake, FTP chargepipe, and VRSF downpipe would cause a turbo failure

[doodlebro]

Originally Posted by TheCoolX3

If you unplugged the battery before you brought it in it would hide most if not all evidence of a tune. I do that anytime I bring the the car in just for good measure. If they try and say anything about the hardware you could definitely argue that all of that actually makes it much easier on the turbo. Not having to fight through a cat and an intake to help it breathe all makes its job easier. I doubt they will get screwed.

My dealer is very cool about mods. I went there once to get tires on (breaking my own rule, I had my tune on) and basically I had half of the sales team, two service advisors, and the majority of techs admiring my SUV shooting flames! I called my advisor the other day to see if I could get my turbo looked at for the hissing sound and he said its probably going to have to be replaced under warranty!

The dealers (In my experience) don't like to screw their customers plus they typically prefer warranty work because they get paid internally and its just less of a headache.

Good to know on the battery, I will do that in the future. Flashing back to stock and locking appeared to get rid of any traces, because I got the warranty approved!

I think the SAs at this dealership are pretty easy on mods though. Should have her up and running tomorrow.