Okay well just to let everyone know, a couple of weeks ago I recently blew the engine in my cobalt using parts from an undisclosed company. Despite trying to put the car back stock, GM decided to VOID THE WARRANTY of my car because I had my interceptor scan guage plugged in the OBD2 port and because I have a header on my car. So basically the Magnussen Moss act is basically toilet paper.

Anywhoo, now that I don't have a warranty anymore, I still have a car that's broke and I would like some suggestions about what I should do to fix it. I can build the motor, that's not a problem....but do I go back stock? I have heard that some people put an L61 crank and rods in an LSJ to "stroke" a 2.0 to a 2.2. How much trouble would this be? I plan on keeping the car for a while so I'm up for anything. Any suggestions would be greatly appreciated.

Thanks,
Vince.

 

i would take the case to court. Contact a lawyer. Also, think about contacting the Better Business Bureau

 

why dont you bring it back to stock and take it to a different dealership?

 

Well unfortunately you can't sue GM...things such as this are settled through arbitration...which could take months to go through. Unfortunately I need my car back ASAP because it's the only car I have.

Later,
Vince.

 

Let me Guess, Running Lean & was A stage Kit 3 or up <<<Aftermarket!

 

Because now there is a red flag on my car and a case number set up through tech line at GM. So no matter where I go they won't work on it.

 

Yep....I don't want to mention the name of the company that I bought the parts from because they did bend over backwards to help me in putting my vehicle back stock, but I will say that my car is only the second one to have an engine failure based on the said companies kits. My AFR's were at about 12.5 which was too lean...and I knew it. Ambient temps were in the 30's so there just wasn't enough fuel. Plus, I think that I got ahold of some 87 octane gas somehow...

I need build suggestions on my motor though and I don't want to lower the compression ratio so the mahle pistons are out.

 

Said Company Should Fix your Motor for Improperly tuning it! They are the 1s that took on the responsiblity of selling you a part that was defective!

 

Yeah well when you buy any of these kits from any manufacturer I do believe it is install at your own risk...

 

wow that really sucks. makes you think twice about doing aftermarket upgrades

 

Werent you the one at Nopi making comments to me about why dont i just go to a smaller pulley and all that because i chose a 2.9?

 

Yeah he should do that, especially after admitting on a public internet forum that his car was moddified and he tried to take it back to stock to fool GM. That's genius!

Gm would sue him for fraud if he did that.

Sorry about your motor though and I hope you get it up and running soon. The good news is you don't have to worry about that pesky warranty anymore so the skys the limit. I say build that bitch extra stout, swap the supercharger and push for 350hp+

 

Who in there right mind told you a 12.5:1 AFR on a blower vehicle was lean?

 

What pulley where you running with that kit?

 

Got $3000.00?

http://www.crateenginedepot.com/stor...-P1695C61.aspx

 

I understand u dont want to disclose any information about the company and so forth which is fine. Can you atleast tell us your set up so we, your fellow owners can know what set ups can cause problems?

 

Agreed.

 

Here would be a safe Bet, If you live in South Florida! You can run a 2.8 Pulley with 42lbs, Just watch it! If you Live in Cold weather do Not do this!
2nd) If you buy an aftermarket tune, Take it to some1 that can dyno Tune it.
3rd) Keep a Good eye on Air/ Fuel Mixtures
Last sometimes tunes are made in totally different Climates, Humidty, temp & so on. So watch it!
IMO
Just My 2 Cents!

 

So what is the safe range?

 

i would seriously get a really good lawyer and take gm to court because the Magnussen Moss act is a very serious law that alot of dealerships don't take serious they have to prove that in fact the aftermarket parts that you installed in your vehicle caused the problem, not contribute to the problem in fact it was the major problem if they can't prove that they are totaly responsible for providing you with a new car or fixing the car, my advice is if you can't get anything from the dealer contact your insurance company and tell them and i'm almost positive something will get resolved.

 

It is on lean side . 11.5-12.0 is a general safe zone.

 

You guys are so funny with your Magnussen Moss Act, to us that things not worth the paper it's printed on. He was modded with non GM approved mods, he came on an internet forum and admitted it, and then he said he tried to put it back to stock to take it in. His warranty is worthless and honestly it should be. Why should GM pay to fix a motor with aftermarket goodies? They shouldn't

You kiddies really are funny with your Magnussen Moss stuff though. You know what would be really funny? Maybe you could print it out and take it to your dealer and video tape this because the service guys are going to get a great laugh at you.

Don't waste your time with a lawyer. You were wrong and you know it, just deal with it.

 

It would cost more to sue them than to get new pistons installed. What exactly happened to the engine did you melt #4 piston???

 

12.5 is a full 2.2 points below Stoich. 12.5 is more then safe and no where near the lean side of things. Perfect for WOT driving.

Peak power is made out of an AF mixture right around 13.2:1.

If you guys think 12.5:1 is lean, you would absolutly cringe in pain if you saw the AFR's my 300ZX runs at.

Back on topic, aftermarket engine modifications + blown motor = no warranty for you.

Youd be better going to the dealership with a Kenny Bell or a Whipple strapped on your car and asking them to replace the KB or Whipple...LOL It aint happening, sorry.

 

Because GM has to prove that it was the modifications that caused the problem in the motor failing. I say if it was the mods that caused the motor to fail then bite the bullet. If it was not due to the Mods. and you dont really have a conclusion to the failure then go to GM arbitration and if is taking to long start the process for court proceedings. It probably wont even go that far.