Sorry to see this man...

 

Blown gaskets upstream of the 02 sensors can really mess with your tune, since fresh air can be drawn in and throw off the AFR readings. Essentially it would cause the computer to add more fuel and you would run rich.

 

Sorry for your loss. Keep us updated.

 

Negative ghost rider.

 

computer would only adjust in closed loop mode. Depending on what you use for ecu the open loop mapping will be fixed therefore it would only affect the tune if they were blown before tuning. If the car was tuned then they blew out and cause the wideband to read lean it wouldn't matter because the amount of fuel poured into the engine during open loop doesn't depend on feedback from the o2 sensors (unless a feedback is setup which is highly unlikely someone would do this for WOT tuning).

 

You are correct, I should have clarified. It would only be an issue in closed loop or during tuning.

 

Any Update CityMonkey?

This may not be a great time to ask..............

But would you mind sharing how you were able to rig your gauges into your factory NAV screen? As I recall, your car did not originally have NAV.

Thank you!

 

Sorry to hear about the confirmed loss of, well, everything... So WTF caused it? The bearing was done before you idled it and noticed the sound. Any hard tracking just prior? Over-revving incident? Any loss of oil pressure? It lasted 5k miles after the install and tune and then decided to die? Something is not right.

I would recommend taking the car to Forged Performance, get a girdle on there, and never look back. Good luck.

 

That would be my guess...

 

I used AV Electronics Navigation Video/Camera Interface, with a custom made display hardness.

I was out of town for a few weeks, so I wasn't able to ship the block back to TX until last week. So I don't yet.

I never been to a track....ever. I didn't over rev it, the highest I shift is 6K.

 

Well here is the verdict.

-#1 cylinder was the one that was bad.
-It looks like it had some severe detonation going on.
-Block, pistons and rods were undamaged
-Crankshaft is beyond repair limits

Pic 1-shows all 6 rods and bearings. Notice the #1 cylinder is all the way to the brass and obviously discolored from the other 5 which are OK

Pic 2-shows a close up of the #1 bearings. You can see they are flattened from the detonation and obviously down to the brass

Pic 3-shows the #1 bearings vs the #2 bearings. Notice the color difference and how flattened the #1 bearings are vs the #2 bearings

Pic 4-shows a close up of the top bearing #1 vs #2...notice how flattened out the #1 bearing is vs the #2

Pic 5-shows the excessive carbon on the piston top and clean edges on the #1 cylinder indicating detonation in that cylinder

 

Pic 6-shows #1 piston vs #2 piston...notice the difference in carbon build up on #1 vs #2

Pic 7-shows the damage to the #1 crank journal.


I'm still waiting for the BlackStone Lab findings. I'll post them as soon as I get them. As to what causes detonation in only in the #1 cylinder, I need to find out.

 

I think it would be highly unlikely for airflow to cylinder 1 to have been greater than the others (driver's side bank gets more air). Therefore if you suspect detonation in a single cylinder, I would check fuel injector #1. Sucks if that comes back as the culprit...

 

In that case I need to sent them back to DeatschWerks for flow testing.

 

If they are DW injectors, you might want to send to someone else (like RC) for testing.

 

How come?

 

To make sure that you don't get shady test results from Deatchwerks to exonerate themselves from any blame for your detonation...

Not that I would say Deatchwerks are shady or something...what I heard so far they are a good, upfront company, but it would be extra reassuring to get impartial data from a third party to analyze your injector's performance...

 

Do you have the spark plug for cylinder 1? (versus the rest)

 

Currently the G35 is in storage. All the parts are packed in boxes inside the car. I can get to all of it, but not right now.

 

due that blows man, definitely gut wrenching to see. hopefully you'll get it all figured out soon.