Any Cracked Piston members here?

[BoostN]

After all you hear about the LBZ pistons. I was curious if we had any members that have been a victim?

I'm at 50K now, and still running strong. My truck has been tuned since 3,000 miles. I'm setting around ~425 or less RWHP.

Maybe it'll hold out so I can get my trans build. Then, I guess I'll be saving the nickels for a build motor..:doh:

 

[GmcLbz]

Not yet.....ound:

 

[tinman22]

69K miles and i'm not a member yet... but i'm trying really hard lol.

 

[GmcLbz]

69K miles and i'm not a member yet... but i'm trying really hard lol.

Yes you are.....

 

[BoostN]

I do think I'm going try to be a member..

 

[Max Attitude]

Does this only happen with a programmer turned up high or does it happen being all stock or just a tow tune? My dad is looking into getting an LBZ. He'll probably leave it stock but I might be able to talk him into a programmer.

 

[GmcLbz]

Does this only happen with a programmer turned up high or does it happen being all stock or just a tow tune? My dad is looking into getting an LBZ. He'll probably leave it stock but I might be able to talk him into a programmer.

For the most part it is happening to trucks that are over 500 Hp. Some have done it with less and some for some reason stay together. A programmer should no problem at all.

 

[tinman22]

I dont think theres any rhyme or reason for it. I have heard RUMORS of stock trucks cracking ( no personal proof) and others from as little as a tow tune to high HP tunes cracking. I personally have been at over 500 hp for 45K miles with a total of just over 69K on the truck. I must have gotten a good motor lol

 

[Max Attitude]

Hmm, so the dealers are probably denying warranties on the programmed trucks?

My dad would be pretty pissed if I talked him into a programmer and then he cracked a piston!

 

[BoostN]

Hmm, so the dealers are probably denying warranties on the programmed trucks?

My dad would be pretty pissed if I talked him into a programmer and then he cracked a piston!

They try to deny warranty any and every way they can. With that saying, it really depends on the dealer your using. Some are more lenient than others.

 

[Max Attitude]

We have a pretty good dealer sales and body shop wise...not sure how they are about warranty work since we've never had too many serious issues to deal with.

 

[hondarider552]

From what i have seen, high timing +35*, ecessive egt's, and low boost have been putting holes in the piston. Im at 26K and havent had a problem

 

[BoostN]

From what i have seen, high timing +35*, ecessive egt's, and low boost have been putting holes in the piston. Im at 26K and havent had a problem

How is thing's going now with them dual DPF's??

 

[BoostN]

Bump

 

[GmcLbz]

Knock on wood, no...op2:

 

[blacklancer]

Aftermarket programers and kits can make the engine work out of its built specs

 

[BoostN]

Aftermarket programers and kits can make the engine work out of its built specs

That's true. But the LBZ/LMM is more prone to breaking than the LB7 and LLY.

 

[freakls7]

im @ 78k and no problems here

 

[Dura-Ration]

Off a little

Your off just a little on your guess of 425HP, you can add about 100 HP to that.:thumbsup: But we see at Suncoast 2010, if we make it.

After all you hear about the LBZ pistons. I was curious if we had any members that have been a victim?

I'm at 50K now, and still running strong. My truck has been tuned since 3,000 miles. I'm setting around ~425 or less RWHP.

Maybe it'll hold out so I can get my trans build. Then, I guess I'll be saving the nickels for a build motor..:doh:

 

[BoostN]

Your off just a little on your guess of 425HP, you can add about 100 HP to that.:thumbsup: But we see at Suncoast 2010, if we make it.

Yea, I'm defiantly over 500 now with Rob's tuning.