Supercharged e90 M3 Failure

[SflBimmer8484]

You would have to add a battery to the ecu itself. Once you disconnect the power the ecu would no longer record time.

[THE TECH]

Originally Posted by Andrew@ActiveAutowerke

You would have to add a battery to the ecu itself. Once you disconnect the power the ecu would no longer record time.

What is this in reference to?

[SflBimmer8484]

Originally Posted by m33

I guess they can look at the mileage vs last data recorded vs the kaboom and combine all 3 and get an idea of a tale, I'm a bit stumped myself ..
Good info though which goes to show how they keep tabs with these cars , I wont be surprised if one day they can tell time , place and reinact what actually happend .

This.

[m33]

Granted a planes black box records time , place , gps ect..
And an Ecu doesn't , just max rpm value ..

[BPMSport]

Wow... just seeing this now.

What I am curious about, is if the reading that AA took indicating a misshift is accurate. 8,700 RPM and 6,000 RPM on a supercharged car are two different ballgames.

OP: Are you up for me sending you a flash drive and cable? I will be able to tell you max rev's/speed/mileage when it happened, throttle opening, etc.. And this will either support your claims or AA's. I will post a screenshot of it on this thread. I'll also be able to see how many times you've hit redline.

I think it's a good 'discovery' process to see what's true and what's not.

And for the record - if AA assisted the OP in 'masking' the supercharger install, that is completely unethical and is probably why the warranty department gives everyone hell over the simplest of things.

[THE TECH]

Originally Posted by Mike Benvo

Wow... just seeing this now.

What I am curious about, is if the reading that AA took indicating a misshift is accurate. 8,700 RPM and 6,000 RPM on a supercharged car are two different ballgames.

OP: Are you up for me sending you a flash drive and cable? I will be able to tell you max rev's/speed/mileage when it happened, throttle opening, etc.. And this will either support your claims or AA's. I will post a screenshot of it on this thread. I'll also be able to see how many times you've hit redline.

I think it's a good 'discovery' process to see what's true and what's not.

And for the record - if AA assisted the OP in 'masking' the supercharger install, that is completely unethical and is probably why the warranty department gives everyone hell over the simplest of things.

Now THAT'S what I'm talking about. Go Mike!

[US///M3]

There is no proof the OP had a money shift even the blown engine tells a different story yet AA keeps telling us a money shift caused the failure.
Why is that?

[BPMSport]

Originally Posted by US///M3

There is no proof the OP had a money shift even the blown engine tells a different story yet AA keeps telling us a money shift caused the failure.
Why is that?

Yeah... Usually a bad money shift will break or bend the valves to hell, and put dents in the pistons... Leaving the car with no compression and in need of a total overhaul. Not eject a piston out of the block.. I guess to an extent it would depend on if you went 3rd to second or 6th to 1st (which would probably be impossible to engage at that speed without seriously forcing it)

But hey, anything could happen - I think it makes sense to reserve judgement until we have undisputed, unbiased facts.

[THE TECH]

Originally Posted by Mike Benvo

Yeah... Usually a bad money shift will break or bend the valves to hell, and put dents in the pistons... Leaving the car with no compression and in need of a total overhaul. Not eject a piston out of the block.. I guess to an extent it would depend on if you went 3rd to second or 6th to 1st (which would probably be impossible to engage at that speed without seriously forcing it)

But hey, anything could happen - I think it makes sense to reserve judgement until we have undisputed, unbiased facts.

Agreed 100%!

[Dodge2Dub]

I may be alone here, but I don't care who did what to whom and why. What I care about, and hope this was the OP's original intention, is what happened and what can be done to rectify it going forward, whether it be with the AA s/c, all s/c's or the stock engine. Sh*t happens, let's figure out why and keep the community informed.

Mike's suggestion is great, take it for what it is and don't get caught up in the BS related to the personal relationship between the OP and the vendor.

[M3PO]

AA's original description of the money shift doesn't make sense to me. I asked AA to explain it earlier and they didn't. At first, AA suggests that it's a bad downshift (easiest money shift) because the car is decelerating (supposedly), but then they suggest that it was an upshift that turned into an accidental downshift (who money shifts shifting up to 5th?) when they are describing the OP's supposed shift sequence.

And they wrote 8705+ for the RPMs. What the hell does that mean? 10,000?

[BPMSport]

Originally Posted by M3PO

AA's original description of the money shift doesn't make sense to me. I asked AA to explain it earlier and they didn't. At first, AA suggests that it's a bad downshift (easiest money shift) because the car is decelerating (supposedly), but then they suggest that it was an upshift that turned into an accidental downshift (who money shifts shifting up to 5th?) when they are describing the OP's supposed shift sequence.

And they wrote 8705+ for the RPMs. What the hell does that mean? 10,000?

I am not sure why AA would claim 8705+.

Just so you guys can see, below is a readout from my car. The car logs RPM at the crankshaft, transmission, and at the vanos unit.

You can see in my case that it was 100% full throttle and a bounce off of my raised rev limiter.

And it was over 20K miles ago, engine is running better than ever. Low oil consumption, great gas mileage, and very solid numbers.

A small german lesson (in order of red boxes in picture):
maximum speed rpm / minute
reference speed from Vanos
gearbox input speed

accelerator pedal position
air mass (this will likely be calculated from the MAP sensor)

(Note, attachment removed)

[THE TECH]

Originally Posted by Mike Benvo

I am not sure why AA would claim 8705+.

Just so you guys can see, below is a readout from my car. The car logs RPM at the crankshaft, transmission, and at the vanos unit.

You can see in my case that it was 100% full throttle and a bounce off of my raised rev limiter.

And it was over 20K miles ago, engine is running better than ever. Low oil consumption, great gas mileage, and very solid numbers.

A small german lesson (in order of red boxes in picture):
maximum speed rpm / minute
reference speed from Vanos
gearbox input speed

accelerator pedal position
air mass (this will likely be calculated from the MAP sensor)

(I will be removing this picture in a couple days, I posted so you guys can see for the time being)

So can you check for a given rpm, what date it was maxed at?

[tibra1]

You fool with something thats near perfect this is what happens..

IMO boosting what came as an N/A application is risky..its one thing to have an already factory boosted car and upgrading or tuning..its entirely different when starting from scratch..

Good luck OP

[BPMSport]

Originally Posted by THE TECH

So can you check for a given rpm, what date it was maxed at?

Not date. But mileage will be an indicator to date to a certain extent. Some process of deduction/induction will have to be followed reasoning from the information pulled from the DME's memory.

You can see in my picture it occured when I had 23K kilometers, which is about 14K miles. I have about 37K now, so it was a long time ago.

[THE TECH]

Originally Posted by Mike Benvo

Not date. But mileage will be an indicator to date to a certain extent. Some process of deduction/induction will have to be followed reasoning from the information pulled from the DME's memory.

You can see in my picture it occured when I had 23K kilometers, which is about 14K miles. I have about 37K now, so it was a long time ago.

Understood.

[tibra1]

Originally Posted by SehrSchnell

This has been covered to death, mate.

What exactly has been covered to death?..Moddng without consquences?

[THE TECH]

Originally Posted by tibra1

What exactly has been covered to death?..Moddng without consquences?

Yes and in regards to putting a s/c on an NA motor.

[Raptor251]

I managed to pull off a money shift a few years ago in my LS1 off road buggy and the results were nothing like this...The ECU showed and over rev and it bent the fu*k out of the valves as well as damaged the tops of the pistons...

I think there is way too much missing info in this story and I dont think its fair to take sides just yet...both parties have some explaining to do asap

[THE TECH]

Originally Posted by Raptor251

I think there is way too much missing info in this story and I dont think its fair to take sides just yet...both parties have some explaining to do asap

Agreed.

[Raptor251]

Originally Posted by SehrSchnell

That there is a risk when you supercharge a car that wasn't designed for it.

Unless ESS does it lol!!!

[BPMSport]

Originally Posted by Raptor251

Unless ESS does it lol!!!

You better hide behind that couch!

Come on guys... let's keep this on topic.. We need the facts, the OP needs to agree to a reading of the freezeframe data from his DME.