might be worth looking to see if there are any of those new oem crate engines still for sale. They use to be pretty reasonably priced.

 

they're gone I looked already. I need to buy everything piece by piece

 

Technically there are safeguards in the ECU to protect from overboosting, so those where probably turned off or set too high. When my wastegate actuator went bad and I started to overboost it hit load limit and cut fuel. If thats the case then I would put that on the tuner. I think this situation is something that should have been addressed in a tuning session. The car must have just never been loaded up in that RPM like it was on the street while on the dyno for this to not have been an issue discovered while it was on the dyno. I thought it was standard protocol for a tuner to do some street driving after a dyno session to make sure everything is good.

 

We can only guess at what happened. What RPM was that 35 psi? 4000? You should have enough fuel to support the boost, so I don't know why it melted.

 

my guess, to hit 35-40 psi on a stock 9 turbo it would have to be like right in the 3500-4200ish rpm range in 3rd or higher. I haven't seen anyone spike it that hard even on E85, and if you did im sure the timing would have to be crazy low. Im pretty sure that wasn't something that was tuned for in his ignition map.

 

I was thinking this also wouldn't there have been knock for sure? It was tuned open source with tephra v7 which has the cel to flash when knock occurs maybe it was turned off? I need to go check that

 

I have it on video but I don't want to post it because the shop name is in the video. It shot out a 4ft flame at least when it spiked and cut off I felt it in my soul. it was at 4k rpm when it spiked what it shows in the video

 

problem with E85 is it really doesn't knock. You could have just been running too much timing for the RPM/boost level in your map and just damaged it by igniting past MBT.

 

Flame means it ran rich. So did it made massive torque (450+ ft-lbs) at that point to fracture the rod? I made 420 ft-lbs at 3600 to 5000 RPM (this is what my car is currently tuned to on E85) and I'm boosting 28 psi. If your car wasn't tuned down and it hit 35 psi, did it make 500+ ft-lbs?

 

IIRC, my timing at WOT drops to 6-8 degrees. Cruise timing is 25-30 degrees on E85.

 

In the vid the a/f hit 12.50 as it shot the flame 3363 rpm WOT

 

What was afr right before that 12.5?

 

2575 a/f 16.01
3040 a/f 14.03
3229 a/f 12.91

 

Maybe someone can comment on this? For 800 rpms, it slowly enriched to only 12.5? Shouldn't it have dropped to 12.0 or under within 200rpm?
I can understand that some tuners tune it a bit leaner to help big turbos spool, but this is the small stock turbo.

 

Not sure the point in protecting a shop that screwed up your car. If that's in fact what happened of course. Sorry for your bad luck. I would be very interested in seeing your timing and fuel map.