Anyone blown a stock boosted motor yet?

[loogs]

ive have been torturing myself lately about this very subject. i recently decided that i would push off getting boost till next year. this thread has changed my mind. im going to enjoy my car the way it is, ill do more minor modding, and not take a chance. once im done having fun with this car, ill get an STI and be boosted from the factory. fuck that.

this post right here! wow! thats all i have to say about that

Originally Posted by King Tut

So I guess I decided to compile the list today:

@Frs300

• Full Blown Turbo Kit
• 93 Octane Full Blown Basemap
• Blew the motor in less than 100 miles, due to the vacuum lines being placed incorrectly on the wastegate and overboosting

@nelsmar

• Vortech Supercharger Kit
• E85 FA20Club Dyno Tune
• Blew the motor after 12,000 miles due to tune running too lean

@alexisfire02

• Larger Sprintex Supercharger
• FA20Club Dyno Tune
• Blew the motor on the drive home from getting it tuned

@Innovate Motorsports

• Innovate Motorsports Supercharger Kit
• 91 Octane Visconti Tune
• Blew a motor while attempting to develop the OTS tune to sell with the kit (kits now ship with Delicious Tuning Tune)

@Jesse@JDLAutodesign

• JDL Turbo Kit
• JDL Tune on AEM EMS only utilizing the port injectors
• Blew the motor up do to melted wastegate line and an overboost

@civicdrivr

• Vortech Supercharger Kit
• 93 Octane Visconti Tune
• Blew up the motor while on the dyno

@shiro

• Greddy Turbo Kit
• Full Blown Tune
• Blew the motor in less than 600 miles believe to be caused by the cam timing and prior damage to motor

@cf6mech

• Accelerated Performance Turbo Kit
• E85 AWDTuning, Texas Tune
• Blew the motor when it crushed a rod bearing most likely due to the tuning

@Unleashed

• Full Blown Turbo Kit
• 93 Octane Full Blown Basemap
• Blew the motor because local mechanic installed a 15 PSI spring and ran a 7 PSI basemap and over boosted spinning a bearing

@Michaeljp92

• P&L Turbo Kit
• E85 JRTuned Tune
• Blew the motor because the car was purposely pushed beyond the limits at the drag strip to find out what the actual limits are, the tune was fantastic, the power was just a bit up there for the factory rods to handle

@Cross

• STS Rear Mount Prototype Turbo Kit with Custom Intercooler Setup
• E85 Moto-East Tune
• Blew the motor running 18 PSI possibly due to cam timing issues and the heads lifted

@C130NAV

• Speed by Design (SBD) Turbo Kit
• Unknown Tune
• Blew the motor running between 12-15lbs of boost

@kingkai23

• JDL Turbo Kit
• E85 Prime Motoring/JRTuned Tune
• Blew the motor while on the dyno because the plug on the TiAL wastegate port came out allowing the car to overboost and allowing a rod to exit the motor

If anyone knows of any others, please post them up.

[xwd]

If you don't like having to do a built motor, don't modify the STi...

[randomthoughts]

I know this is off topic but has there been any blown stock engines on only Unichip or OFT tunes. I didn't find any threads in the search.

[DRACHENV6]

My impression is that the wastegates are critical components with no backup system in case of failure.. Why are people doing this?

There is a small margin for error. Ive never boosted, but I think that there should be some sort of checklist after installs/before dynoing or simpler components. A backup system or two would save alot of headache would it not?

[Sellout]

Originally Posted by DRACHENV6

My impression is that the wastegates are critical components with no backup system in case of failure.. Why are people doing this?

There is a small margin for error. Ive never boosted, but I think that there should be some sort of checklist after installs/before dynoing or simpler components. A backup system or two would save alot of headache would it not?

Waste gates are pretty reliable pieces of hardware. I've never seen one fail. Never heard of it even...

You can always incorporate a boost cut into the tune in case of over boost, like the manufacturers do with turbo cars.

[OICU812]

Originally Posted by loogs

ive have been torturing myself lately about this very subject. i recently decided that i would push off getting boost till next year. this thread has changed my mind. im going to enjoy my car the way it is, ill do more minor modding, and not take a chance. once im done having fun with this car, ill get an STI and be boosted from the factory. fuck that.

this post right here! wow! thats all i have to say about that

Everyone of them has a reason though? If installed correctly, tunes correctly and stay within limits there seems to be zero issue with those folks. See mileage thread and remove tinfoil hat.

[D K]

Originally Posted by King Tut

So I guess I decided to compile the list today:

@Unleashed

• Full Blown Turbo Kit
• 93 Octane Full Blown Basemap
• Blew the motor because local mechanic installed a 15 PSI spring and ran a 7 PSI basemap and over boosted spinning a bearing

It seems weird that a bearing would spin when overboosting.

I myself am running a custom supercharger setup, have 9(?) track days so far and an excellent tune from Shawn Church @church Automotive Testing

So far, so good.
Had some other issues like melting my aluminum race mufflers, but the engine is going strong, making power and no logged knock events.

Car will hopefully be part of the SoFlo owners group by december or january

.....with my built engine

[Sellout]

Originally Posted by D K

It seems weird that a bearing would spin when overboosting.

It's actually not uncommon.

Knock creates intense combustion chamber pressures, which dramatically increase the pressure on the rod bearings, the oil gets squeezed out and you have metal to metal contact, bearing spins.

[xwd]

Originally Posted by Sellout

It's actually not uncommon.

Knock creates intense combustion chamber pressures, which dramatically increase the pressure on the rod bearings, the oil gets squeezed out and you have metal to metal contact, bearing spins.

Yeah especially at the torque people are making with turbos. The SC kits aren't anywhere close. Everything gets stressed.


The WG issues are unfortunate.

[DRACHENV6]

Originally Posted by Sellout

Waste gates are pretty reliable pieces of hardware. I've never seen one fail. Never heard of it even...

You can always incorporate a boost cut into the tune in case of over boost, like the manufacturers do with turbo cars.

Correct me if I'm wrong, but I would classify overboosting as a WG failure. A secondary/tertiary backup system would account for installation errors, etc.

[Sellout]

Originally Posted by DRACHENV6

Correct me if I'm wrong, but I would classify overboosting as a WG failure. A secondary/tertiary backup system would account for installation errors, etc.

Look through that list above and try to find an example of overboost caused by failure of the wastegate.

Yeah especially at the torque people are making with turbos. The SC kits aren't anywhere close. Everything gets stressed.

That doesn't really matter. Preventing knock is all in the tune. Even a bad N/A tune can rattle the motor with knock and spin the bearings(or worse).
I've seen built race engines with fully forged bottom ends come apart due to knock with less than 200 ft lbs at the flywheel.

[loogs]

Originally Posted by dwx

If you don't like having to do a built motor, don't modify the STi...

what are you saying? just curious

[Reaper]

Ejs blow up easily at less power.

[The Racers Line]

Originally Posted by loogs

what are you saying? just curious

In the last 6 years our shop has built over 600 EJ's, and 99% were built because of failure. The other 1% were preventative. Ejs have what we like to call "glass pistons". From what we've seen already, the FA20 is a much stronger engine.