Detonation can happen with out hearing it. Under full boost you might just hear a "bam" and that's it.

The gas may not have caused the problem. A clogged injector or faulty fuel pump, low voltage to the fuel pump, a stretched timing belt, bad ecu, bad flash, loose wire harness, bad MAF etc.... might have had the same effect by leaning out the bad cylinder.

I reasonably doubt it though.

 

I agree with wrench but only if there wasnt 87 in the tank. Might have ben just my luck but i doubt that. 87 will definatly mess you up, its just luck of the draw.

But I didnt hear any sounds except the car sound like it started to die out.

 

I have only seen one like that before. The ring land broke out right at the ring gap and burnt a hole through. The ring dug into the side wall and dug out top to bottom. Combination of bad gas and bad piston casting.
Good luck with it.

 

yeah Dan at Pruven said he has never seen anything this bad, so i guess i won an award on that one, to bad I wasnt racing and pulled some amazing time to brag about, rather then getting on to a frequin highway. Guess there is some humor in that....

 

I've got a good core. Give me a shout and let me know if you're interested.

 

Wow I must say you guys are great! Thanks for all the PM's and Replys, I'm trying to figure out what exactly I'm doing right now.

talking to Dan at pruven, I'm right now looking to do 1 of 2 things.

1. Buy the entire shortblock from Buschur Racing and then just have pruven drop her in.
2. Have pruven build it

I'm trying to find out from buschur what exactly their shortblock has in it, I think they are racing today so its hard to find out this info right now. As far as pruven Dan is being great, I'm waiting to see what buschur has to offer then i'm going to see what Pruven has to offer and I'll choose from there.

Really Sux, I'm trying to do as much research as I can so I become educated on this topic. Its painfull because I never thought this would happen, and I really dont abuse my car so this was not even on my mind.

Keep the info coming if anyone wants to educate me feel free! I'm trying to figure out as much as possiable just there is a few who actually know a lot about this topic.

Thanks you guys are great!

 

i think you should get a galant block. 2.4 liters... roadrace builds them... they're way cheaper than a evo viii motor but are basically the same thing. you'll need new mounts and a they'll mod some stuff to fit the head... but it's been done... they're solid.

or you could bore out your blown engine a lot and get it sleeved.

 

I've gotten a lot of feedback from some reputable people saying to stay with the stock block/bore and not go with a stroker kit. Also there is a post by I believe Malibu Jack that explains the stroker idea in debth.

I have decided to stay with the stock bore 2.0L, But yes i have thought about it. Thanks!

 

The only sleeves I've seen used are steel. A good way to go cost wise since you may not get 100% reimbursement. If you must take this to court there could be some shared liability and adjustments for depreciation involved. I hope you get things resolved in your favor.

 

I dont understand why it didn't just pull a lot of timing. I mean did you have a use tuning device that locks your timing? I mean the stock ECU should have protected you, what were you boosting? What kina tune do you have?

 

Buschur's stage 3 block is $3500.00 with a good core..

 

Ecu will pull timing after the problem has occured, also there is limits as to how much timing the ecu can pull. Being I had 87 instead of 93 that is a huge difference, the ecu probably saw the problem after it happened and also probably couldnt pull enough timing to correct it.

I was boosting 22psi and had a/f ratio of 11.5:1 which is on the safe side compared to 11.8:1 which most tuners use. this is not a tune issue so lets not start something that doesnt exist, it is strictly related to 87 octane and only that.

 

If the gas station screws you and doesn't pay I say we take up a collection for this guys cause.

 

Wow Evo owners really are something else, this just pruves it. Its great to drive by fellow owners and get a wave or flash (too bad they are lights ), but this is a new level right here. Hopefully the gas station comes though if not I might have to take them to court. I'm hopeing they will just make a claim on their insurance policy and get this solved asap. They should be lucky I have a car because I should be getting more then just getting this stuff paid for how about inconvience, and imagine if I had to rent a car. Great to have a g/f who's parents treat you so well and let me borrow their car.

Well I hope all goes well, I'll keep my fingers crossed. Hope to get in touch with the station owner again and see what the deal is, so monday I can get down to business.

I've been on this board for a very long and this assistance beats all I've seen. I'll keep everyone updated like i said before. Just hope you guys can learn from this, and be extra careful they put in the right gas. I dont care what the NJ law is after this I'm pumping my own gas if they dont like it then I'll find a place that will, maybe this Exxon station.

 

There is no way the low octane fuel caused this. The other three cylinders look textbook nice fuel mixture wise. The bad cylinder suffered preignition damage.

Sleeving the block only runs around 120 bucks or so. Cheapest way out. Gas station is not gonna help you especially after you show him pics.