HELP please !

Some trouble happened last night. Was giving a ride to a friend and then I felt something weird. Huge loss of power. Then the white thick smoke appeared behind the car. Got it towed.

Now I just took all of the (8) sparkplugs out and they're all "wet". One is badly damaged and is for piston #8. Can anybody tell me wtf happened with it ? Did it get hit or is it melted ? First though it was a head gasket but now I'm not too sure. Seems more serious.

well both vc's are off and everything looks good from there but thats bs cause I found a big amount of oil in the upper intake and some pieces of what looks like a busted ring...

Here's what I found...





Piston exploded/melted and slingshot some pieces on the sparkplug and in the valves I assume. I need to change 2 valves on the heads. They are bent and arent closing right anymore. I'm putting the engine back to stock..if the block is still usable

Wow that's a lot of damage. When I'll get in the oil pan, I'll have plenty of pieces I think.

Do you guys think my cam is ok ? or is it possible that it got damaged ?

94gts said:

did you ever figure out why this happened since you werent spraying? how many miles were on your block?

Click to expand...

Chit man thread back from the . Now you make me remember all this stuff

Yes man everything has been figured out a while ago. The block had 75 000miles on it. It was in very good shape and well maintained. But here's what happened...

2 days before, I was at the local dragstrip and everything was going very good, except it was just too damn humid but whatever. So all day, I was running on motor only. Did do a 12.7 and I was ok with it. I should of been a good .2-.3 faster. The "air" was chit and I knew it. I also had my nitrous kit ready for the evening. I just had to change my sparkplugs and put the right tune in the tuner for the nitrous application. So at about 8pm at night I do my first ever "succesful" nitrous pass. By succesful I mean that the nitrous worked. I had a lot of trouble for like a whole summer trying to make it works but it turned out it was a bad fuel safety presure switch that was stopping me from spraying. I dropped the clutch at about 5000rpm with the 100shot in there. I launched and went right for the left wall. I missed it just in time and the whole run was like on and off WOT cause I was just going sideways the whole time except when I finally hit 4th. Go figure...4th was my only gear that I had WOT and I still trapped 111mph. Just imagine if I would of had traction the whole time. I'd seen mid 11's and near 120mph. So here comes the fun part...

I was really excited about that nitrous pass even if I almost crashed like 5 times while doing it. So I put a little more air in the slicks and go at it again. I do my burnout and then stage. Everything is perfect so far. I activate the arming switch so as soon as I hit 3000rpm it will kick in ONCE IN WOT, because of the WOT switch. Now I'm bringing the engine rev up to launch at like 5000rpm again. But as soon as I pass the 3000rpm mark, I can just hear that weird sound as if my tb is sticking. I'm still staged btw. I un-arm the system and re-arm it and do it again. I do the exact same thing and the same chit happens. Now I knew it wasnt normal so I backed off from the staging area. I park the car and start looking at what could of made this happened. And what do I see ? The freaking WOT swich was JAMMED in the ON position meaning I was spraying STANDING still, when I wanted to launch. So I basicly did spray a 100shot twice on that engine standing still. 2 days after, I was on the highway and you all know the rest..I'm assuming this is what caused the blown engine.

Sorry for the long post. It's been a while since I spoke about this and I wanted to elaborate a little. So in the process, piston#8 was busted and my AFR heads got fawked up. Nothing major. A few valves... Now sold all the performance parts and the car is back to stock and for sale again.