Originally Posted by xtremerevolution
How much boost are these head gaskets supposed to take?? Are you confident that this won't happen again if you simply replace the head gaskets?
Bxx and Saar helped me figure this one out. AFR before detonation was low 13s. The target AFR is 12.5.
The way I tuned, I set the un-tuned area of the map (>3psi) to be very rich (lower than 12.5AFR). Then a program called VE Analyzer Live makes adjustments to the VE table while driving using feedback from the WBo2. It updates the table on the Megasquirt every 5 seconds. My guess is that it dropped a VE number too low and within that 5 second window, I had a pre-detonation. If not pre-detonation, just some insanely high cylinder temps. I think robert called it when he said it detonated off of the metal on the head gasket.
I could spend 150 bones on the MLS headgaskets.
I could get them in any thickness. I would want thicker gaskets to lower my compression ratio. They also take 2 weeks...
Or OEM replacements are $50....
Billy Billy Billy boy, no 3100s allowed...