Motor Toast...
Senior Member
Joined: 07-12-08
Posts: 605
Likes: 0
From: Houston, TX
From my personal experience its not always the boost. The more aggressively tuned a motor is, the easier it is for any sort of knock wot to destroy a motor. Knock destroys motors in any brand, design or make. That is why it is imperative to monitor knock. Even perfect tunes can knock under certain circumstances, that is why you need to monitor, and if it shows up, get off of it! Most people just assume its the boost. Its a combination of a lot of things.
Senior Member
Joined: 08-22-10
Posts: 2,281
Likes: 2
From: Saskatchewan, Canada
Yeah I was going to get locally tuned by a friend who does HP Tuning... I ended up fronting an extra $500 to get GMS1 instead.. peace of mind until I can afford to blow up my engine and have no warranty...
HOPEFULLY!! it works out for you!! Seeing as ive had to fight for every single warranty issue with my cobalt I kinda hope you get yours sorted out.
HOPEFULLY!! it works out for you!! Seeing as ive had to fight for every single warranty issue with my cobalt I kinda hope you get yours sorted out.
I can understand both sides. Myself I went back to stock (all parts and tune) then brought my car to the dealer for my coolant disappearing issue. 2 months later they tell me there denying my warranty and to come get the car there not touching it because they found it on this forum with the list of mods and tune. I knew I would have trouble before i went to the dealer which is why i removed my parts. From day 1 when it was towed there i told them, I believe I have the Porous block issue. They immediately told me they have never heard of it. blah blah. 4 months later car was returned to me with a warrantied motor and more sorrys then i can count 
. My intentions were that if it was proven anything ive done caused the problems, I would deal with it myself. But id fight the **** out of it if i know its something else. They refused to even tear the motor down to check to see if it was a porous issue which is why i continued to fight it with the help of a few members on here as well.
. My intentions were that if it was proven anything ive done caused the problems, I would deal with it myself. But id fight the **** out of it if i know its something else. They refused to even tear the motor down to check to see if it was a porous issue which is why i continued to fight it with the help of a few members on here as well.
30 psi for half year now and no probs. the main contributor to ring failure may be that people who are new to tuning ramp the dals up in the hpt program and what they dont know is even though they are getting a better throttle response the car is boosting sooner to meet the new dal requirements. essentially in short words the over increased dal chart starts going into pe mode on the throttle but leaves the air fuel ratio 14.7 which is way to hot and smokes internals. seen that on more than a few tunes and the idea is getting bumped arount the hpt forum pretty hard.
bottom line make sure your tuner has good dyno numbers and a shitload of tunes under his belt. i will list no names as i know at least 6 who are willing to help anyone and they all share my equal respect. find them they are well known amongst lnf owners.
bottom line make sure your tuner has good dyno numbers and a shitload of tunes under his belt. i will list no names as i know at least 6 who are willing to help anyone and they all share my equal respect. find them they are well known amongst lnf owners.
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Oct 4, 2015 08:44 PM