What makes you guys think it's a blown headgasket?
Looks like the nitrous line blew off and sprayed all over the engine.
Then again I know nothing about nitrous (no need for it) or dynos (I'm awd), but I've blown a headgasket before, and it didn't look anything like that.
What's the red piece flying out of the engine?
Debian: If he's pushing 553 whp, I would assume he already has ARP Head Bolts. They were one of my first mods, and I'm no where near pushing that much power.
If he did in fact blow a HG (which I doubt), there's too little info to point the finger at what caused the problem. Without sufficient info about the car and setup, I'd just give a stupid answer like "don't run nitrous on a DSM, no need."
Although I don't have any experience with nitrous or dynos, I can't believe this is a blown HG case. Hopefully a DSM owner with experience in these fields can give a better answer. Until then, what makes you think it's a blown HG?
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92 Laser
AWD