LHU/LDK can't hold same or more than LNF
 

Well, seems this engine can't go beyond 320WHP.
Picts on tuned LHU/LDKs over 350WHP but below or equal to 400WHP
All of them from three different cars.
Probably is not that strong as the LNF.

http://buickforums.com/forums/attach...1&d=1405383625

http://i62.tinypic.com/z2xcj.jpg

http://buickforums.com/forums/attach...8&d=1405477573

interesting.

Who tuned them?

I dont think I've seen a rod snap like that in an LNF.

HOLY SHIT..... And i was getting ready to buy a shortblock....... We need more details of tune, psi, fuel, timing, etc.

LDk is supposed to be able to handle more power than lnf. Definitely need more info on tune and such

Need more info here, there have been many a blown stock engine, regardless of what it is, due to tuning or other mechanical failures. I don't think this is just a case of power breaking them much easier than an LNF, especially since i've seen well over 400whp on LSJ blocks which are weaker for sure and they hold up.

Holy fuck. People. Stop posting pics of these accidents. It's all due to the detonation in your shitty fucking tunes or you have a huge mechanical issue aka a wastegate failure or an injector fails. All you people who continue to blow these motors up sub 450whp make me laugh. The gen 1 lsjs have guys who make 500whp. The gen 2 lnf guys like myself have done it before too. The ldk is a beast. Detonation kills. Stop posting this bullshit when you have no idea what the culprit is. It's not 350whp. Fail. The ldk has the same rods as the Lnf. The only difference is the casting the cylinder wall bracing (so the sleeves dont crack) and the extra aluminum in the block for the coolant jackets. Also remember the pistons are still hypereutic so they will not last with any sort of detonation. So all you guys can run out and get a forged block for your shitty tune when half of us are still on the stock block.

i agree its probably the tune cosidering there are people 4-500 on stock block....

I prefer do not tell who tuned those cars because don't have further information besides some names, pictures were sent to me and/or took from another forum.
Pictures are real, just came to me after a research about how much power my LHU could hold.

made 600whp with forged internals but on stock gen2 lnf block. So if your breaking a rod or anything for that matter on a lhu on less than 450whp, that is a big problem on the tuning side

made 442whp all day every day on a lnf...... well over 100 dyno passes, 30000 miles before the car was totaled. sound like shitty tuning which is the norm of these motor failures.

You can do the same thing with less power. Detonation will kill any engine, look for a new tuner if they do this to your engine and say its the engines fault. Which if they say that I'm fairly certain everyone knows who it is.

LDKs are junk. I would stick with LNFs. I will sell minds for a good price so I can buy me a "weaker"and drop-in a LDK. :)

i see what this guy did here lol:cssNET:

LOL @ not saying who was doing the tunes.

This reeks of RPT

^ truth

^^yup

I have a buddy with an Ldk with the zfr on e85 and he's pushing over 450 to the wheels. I'd buy one if they weren't so much

I too would like to know the answer to this. Could just be a faulty rod but not sure.

that motor had to see some insane KR for that rod to shatter like that lol

I know one thing I am 99% sure I did not tune any of these LDKs that failed. I have tuned a few LDKs and I believe all are still running fine.

Sorry, but this doesn't prove anything with regard to the capabilities of the LDK... The OP didn't include anything credible with the first post aside from some pictures that don't really elaborate on anything.

Faulty rod on 3 different cars all that the op knows since he has the pics of the rods? I think there is a common denominator not being named in ops post lol I find it improbable that it was faulty rods in this case, or should I say, these 3 cases

Don't want to name tuners because don't have further info but each car was tuned by a different tuner.
Probably faulty rods from the batch of faulty rods reported by GM on LDKs..Nobody knows.
Basically I post this to open a discussion because from one side I read that LDK/LHU can't hold over 320WHP then showing this kind of pictures to prove it but here there is a totally different opinion based on your own experience with many cars running 400WHP with no issues at all, there is a huge gap between 320WHP and 400WHP !
Term2 has a huge reputation and I do believe him hands down, as I said just want to learn a final word on how much my LHU can hold without harming the engine.

Interesting different tuners. How my LDKs have failed like this? All rod failures?