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Incoming Debris Advisory

EBAY TURBOS

We have rebuilt turbos that arrived in ziplock bags. We have rebuilt turbos where the compressor wheel was still in the intercooler. We have rebuilt turbos where the oil inlet was simply not a hole that went anywhere. We have seen things. We can help.

scroll for the carnage
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THE FIVE STAGES OF eBay Turbo Ownership

We have watched this play out hundreds of times. There is a predictable arc to every eBay turbo purchase. It is almost beautiful in its consistency.

101

Denial

"$79 with free shipping. It's probably the same thing. They all come from the same factory anyway."

202

Excitement

The box arrives. It has a sticker on it. The sticker says "HIGH PERFORMANCE TURBOCHARGER." You feel good about this.

303

Installation

Two of the bolts are the wrong thread pitch. One water port is purely decorative. It smells like machine oil and regret. You proceed anyway.

404

The Sound

It spools. It actually spools! For exactly 847 miles. Then it makes a new sound. A sound you have never heard before. A sound from another world.

505

Acceptance

You are on theboostlab.com. You are reading this page. You know what you did. We do not judge. We have seen worse. Ship it.

A Word on Shaft Play Before We Continue: the shaft play spec on a quality rebuilt turbocharger is measured in thousandths of an inch. The shaft play on a fresh-out-of-the-box eBay turbo is often measurable with a standard ruler. We once documented 0.048" of radial play on a unit that had never been run. The factory had achieved this. On purpose. Out of a box. That is a special kind of engineering.
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THE SPECIMEN FILES

A curated selection from our archives. Names have been withheld to protect the innocent. The turbos, however, were not innocent.

FILE #001 • RECEIVED Q1Deceased

THE MYSTERY BOX

aka "Universal Turbo Fit Most Car", listed on eBay under 47 different vehicles

Arrived wrapped in bubble wrap and a layer of what we believe was optimism. The compressor housing casting had a void in it that was not a design feature. The oil drain had a 90-degree elbow cast into the housing that directed oil away from the drain and back into the center section. This was not an accident. Someone engineered this. Somewhere, there is a drawing of this turbo on a computer screen, and a person looked at it, and said yes.

Cause of DeathGravity. Oil went nowhere. Bearings went everywhere.
FILE #002 • RECEIVED Q2Deceased

THE PHANTOM BALANCER

aka "Garrett Style GT35 High Performance BB Turbo", not a Garrett

Owner reported it ran for three weeks before the engine bay sounded like a blender full of gravel. VSR test at teardown revealed the shaft assembly was balanced to a tolerance that could only be described as "vibes." The compressor wheel had six blades of five different thicknesses. Our shop's VSR machine refused to display the result: it just showed an error code we had never seen before. We printed the error code and put it in the file. We still have it.

Cause of DeathImbalance-induced bearing failure at approximately 8,000 rpm. Which was third gear.
FILE #003 • RECEIVED Q3Critical / Stable

THE OPTIMIST

aka "TD05 Style Upgrade Turbocharger 600HP", rated 600HP in the same sense that a folding chair is rated for space travel

Owner came in with a genuine TD05H rebuild quote and left with an eBay unit after a Google search. Came back eight months later with the eBay unit in a grocery bag. The good news: the TD05H housing was intact. The bad news: the CHRA inside it had been replaced at the factory with a bearing assembly sourced from somewhere that does not appear on any approved vendor list. We rebuilt it properly. It runs. The owner has since bookmarked us.

Cause of DeathCounterfeit internals in an otherwise acceptable housing. The housing was innocent.
FILE #004 • RECEIVED Q4Deceased

THE HEAT SEEKER

aka "Water Cooled Turbo with Water Cooling", technically accurate

It did have water ports. Two of them. They went into the housing approximately 4mm before ending. They did not connect to the bearing section. They connected to nothing. The water jacket was aesthetic. The turbo was oil-only cooled, but the listing said water-cooled, so the owner connected water lines to both ports, observed them do nothing, assumed this was normal, and drove the car for six months. Honestly, the turbo outlived our expectations. We respect its perseverance.

Cause of DeathOil coking from a water jacket that was a suggestion rather than a feature.
FILE #005 • RECEIVED Q1Miracle

THE SURVIVOR

aka "Amazon LS1 Camaro Turbo Kit Complete", it had a turbo in it

Owner purchased a complete turbo kit for a Gen III LS engine. The kit contained, among other things: one turbo, one wastegate that opened only under specific barometric conditions, instructions printed in a font size of 4pt in a language we have not been able to identify, and a boost gauge with no markings on it. The turbo itself was somehow fine. Internally unremarkable but functional. We rebuilt it, VSR balanced it, and it went back on the car. The wastegate situation is between the owner and God.

Cause of DeathNone. It lived. We were as surprised as anyone.
FILE #006 • RECEIVED Q2Deceased

THE COMPRESSOR LIBERATION EVENT

aka "T04E Style Hi-Flow Performance Turbo with Free Shipping"

The compressor wheel departed the housing at approximately 4,500 rpm during a casual on-ramp merge. The wheel traveled through the intercooler pipe, the intercooler, the throttle body, and impacted the intake manifold. Fragments were found in cylinders two and four. The owner called us from the side of the highway. We talked them through the situation with compassion. The engine block was later donated to a community college automotive program as a teaching example. The turbo arrived in four separate bags, labeled by the owner, which we found very helpful.

Cause of DeathCompressor wheel burst from insufficient bore material and a trim ratio that existed in theory only.
FILE #007 • RECURRINGThe Certificate

THE VSR REPORT

aka "Professionally Balanced, Certificate Included"

Many eBay turbos arrive with a VSR balance report printed on a sheet of paper. The report has numbers on it. The numbers look like they were measured by equipment. We have now seen the same VSR report, same values, same date, same machine ID, included with turbos from at least eleven different sellers across three different "brands." It is one document. It was balanced one time, possibly, and then photocopied into eternity. We have framed a copy of it in the shop. It is our favorite piece of art. The actual shaft assembly in the turbo it came with was balanced to a specification that could charitably be described as "rotates."

Cause of DeathThe certificate is not evidence of balancing. It is evidence of access to a printer.
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ADVERTISED VS Actual

A scientific comparison based on years of fieldwork. All figures are approximate and based on the assumption that the listing was written by a human.

SpecificationListing ClaimsWhat We FindNotes
Horsepower Rating600HP~180HP before it grenades"600HP" refers to a theoretical universe
Bearing TypeDual Ball BearingJournal bearing, two sleeve type, one mystery typeBall bearing means there are balls. Somewhere.
Shaft Play (Radial)Not specified0.025" to 0.048"OEM spec is ~0.002"-0.003"
Shaft Play (Axial)Not specifiedMeasurable without instrumentsYou can feel it with your finger
VSR Balancing"Factory Balanced"Not balancedFactory existed. Balancing did not.
Included Balance Report"VSR Certificate Included"Same PDF, different turboWe have seen the same report on 11 different turbos. It is one document. It is a stock photo of data.
Compressor WheelBillet Forged AluminumCast, uneven blade spacing"Forged" is a strong word choice
Expected Lifespan"Long Lasting Quality"500-1,500 miles with luckLuck not included
Oil Port Positioning"Standard fit"OptimisticSometimes the drain goes up
Water PortsIncludedPresent. Decorative.See File #004
Included HardwareComplete kit with gasketsTwo random bolts and a zip tieThe zip tie is the most useful item
Returns Policy30-day returnsAccount no longer activeThis is the way
Seller Rating99.8% positive (412 sold)Same seller, different accountSold under 23 store names
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QUESTIONS WE HAVE Actually Been Asked

Will you rebuild my eBay turbo?
Yes. We will look at anything. We have seen everything. We tear it down, document what we find, and tell you honestly whether a rebuild makes economic sense or whether the money is better spent on a quality unit. Sometimes the housing is fine and we can rebuild the CHRA properly. Sometimes we open it and have a moment of silence. Either way we will give you a straight answer before charging you anything.
Mine has been running fine for six months. Am I okay?
Statistically speaking, no. Six months is the upper range of what we call the "optimism window": the period between installation and what the community has lovingly termed the "Compressor Liberation Event." We would like to personally congratulate you on your six months. Now please send it to us before something interesting happens on the highway. A proactive rebuild with quality internals and VSR balancing will outlast the car.
The listing said it was a Garrett. Is it a Garrett?
No. Garrett does not sell turbos on eBay for $89. Garrett has a website, a sales team, authorized distributors, and a legal department that would like a word with whoever is using their name. What you have is a turbo that is "Garrett style," which is the mechanical equivalent of a "Rolex style" watch from a gas station. The housing may share general proportions with a Garrett product in the same way that a child's drawing of a car shares general proportions with a Ferrari. Ship it. We'll sort it out.
My friend said his has 20,000 miles on it. What's he doing differently?
Your friend is either extremely lucky, running extremely low boost, or has a better unit than he thinks. Occasionally an eBay turbo ships with internals that are merely mediocre rather than catastrophic. It happens. It is not a guarantee, it is a lottery. The difference between a properly rebuilt quality turbo and an eBay lottery ticket is the difference between a known outcome and a game of turbo roulette played on an onramp at 70 miles an hour. We are not against gambling on principle. We are against gambling with your engine.
Can I send you the one I bought as a backup while my first one was being rebuilt?
This has happened. More than once. The answer is yes, absolutely. We will give it the same teardown treatment and we will try very hard not to have opinions about the decision that led to this situation. Everyone makes choices. You made a choice. The choice made another choice. Now there are two turbos and you have found us. This is fine. We will fix the one that can be fixed. Ship them both.
You quoted me more to rebuild it than a new one costs on eBay. Is that right?
Yes. That is correct and we understand how that feels. A proper rebuild, meaning teardown, quality bearings, new seals, and VSR balancing on calibrated equipment with an actual result, costs real money regardless of what the original turbo cost. We are not going to cut corners on the rebuild to match the price of the thing that just failed. The math is what it is: a quality rebuild on a marginal housing sometimes costs more than another eBay turbo. You already know how the next eBay turbo ends. You have data on this. We are not going to tell you what to do, but when you are ready to stop the cycle, we are here.
My turbo came with a VSR balance certificate. Doesn't that mean it was balanced?
We have received the same VSR balance report, identical values, identical machine ID, identical date, with turbos from at least eleven different sellers. It is one document that has been photocopied and included with turbos that were never near a balancing machine. A genuine VSR balance report has the serial number of the specific unit, the measured residual imbalance before and after correction at operating speed, and the target tolerance. It is specific to that shaft assembly. A generic certificate with no unit reference is a piece of paper. We have one framed in the shop.
What should I replace it with?
Something with a name. Something where the company exists and has a phone number. Garrett, Holset, BorgWarner, IHI, MHI, GReddy, HKS: these are all brands that have engineering departments and quality control processes that do not involve a person eyeballing a compressor wheel and saying "close enough." We rebuild all of them. If you tell us your application and your power target we can point you at the right unit and have you set up properly. The cost difference between a quality rebuild and replacing an eBay unit every eighteen months is significant.
No Really, We'll Take It: jokes aside, we genuinely inspect and rebuild every eBay turbo that comes through our door with the same care as any other unit. Sometimes the housing is perfectly good and we can rebuild the CHRA with quality internals, VSR balance it properly, and give you a turbo that will actually last. Sometimes we open it and the honest answer is that a quality replacement is the better investment. Either way you get a straight answer before we charge you a dime for the rebuild. Ship it and we'll tell you what you've got.
All Jokes Aside

SEND US THE TURBO

Start a rebuild request in our repair system. Every unit inspected and quoted before we proceed. In-house VSR balancing since 2008. We have seen your turbo before. We can help.

Start Your Rebuild Request

37833 Pineapple Ave Unit A • Dade City, FL 33523 • sales@theboostlab.com