It doesn't do it at .8 bar, but I do not know (yet) at what boost it starts doing it. It does it at 1.3 so I have to imagine it starts around 1-1.2bar. Hope to find out. Not sure what the cost to fix is yet, if in fact that is the issue, and what route I will take to achieve that...

 

the big question is if you lift the heads did you stretch the studs? if so, then new studs are in order.

 

Absolute no brainer...seeing as the engine is out..might as well do rods too and....

 

and you might as well port the heads and get bigger cams

 

All joking aside, I have a hard time believeing that I lifted the heads with 1.3 bar with the occasional spike of 1.4...

 

1- you could have if the widebands are lying to you. popping at peak torque is not an inspiring sign.

2- When you are running meth, you can run 1.3 bar. When out of meth your pump tune will only do 0.8 bar. The question here is what happens if you run out of meth in the middle of your run at 1.3 bar? Can the ecu kill power before you lift the heads, which you will do with the oncomming detonation at 1.3 bar. if for whatever reason, your meth system failed to provide at any time what happens?

there is lots of what if's, but I am throwing out a few.

Mike, I sincerely hope that it is not serious.

 

did u check for the dried coolant build up on cyl3 or oil residue in the coolant expansion tank??

 

No oil in the coolant. Couldn't see any dried coolant anywhere...everything is black and looks like oil...

 

Wish I could help Mike.. wish you the best here and the cheapest/easiest fix!

 

Mike, good meeting you today. To bad time was short but I understand your deadlines. Best of luck sorting out your car and good luck at the Mile.

 

Thanks Dave...

 

Pleasure was all mine Larry. Sorry to be so short, but you know...clock is ticking...Thanks again!!!

 

So Mike is the feeling right now that its probably not the head/gasket lifting?

 

The only feeling I have right now is confusion, (if that is a feeling).

 

Hopefully, once it is back on the dyno, you can replicate it and pinpoint the trouble.