CR melted piston discussion, why, why not, and for the love of god how not to..

I torched a hole right through my piston last year. 3 of 6 were damaged.

Too much timing was my issue. Smarty + TST + 50/50meth. The damaged piston is impressive.
 
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I am by no means an expert on anything but was just wondering what would happen if you lessen the pre and post injection and increase the main injection?
 
how would you mess with the injection rate? we dont have to say efi live for our trucks, get a bosch standalone then you prob. could.
 
I was reading some posts earlier in this thread about the newer cr's burning so much more efficiently causing higher temps at your piston than at your egt proble. If you look at the older gen's, duramax's, or even powerstrokes, they don't get as good fuel efficiency and you don't hear of them melting down as much and they blow more black smoke. Now my question is what exactly does the smoke switch do? Because i know when i turn it on it really makes the black smoke fly.
 
If it's a smoke switch as what I'm thinkin of it tricks the box into thinking it has full boost making it fuel at max. Only problem is that everything else maxes out too.. Timing and rp if the box controlls such. Not the best thing to be doing IMO
 
is it just me or does it seem like most of the trucks melting pistons are running the Smarty,TST or both? i dropped a valve seat in my 03 due to my injector hanging open and trashed a piston.so now after talking to Tim at TRE i am purchasing the QSB 480hp Marine Pistons,with coated skirts. i think for the guys running an 03-04 this is an awesome piston, without having to drop $3grand for a set of the steel pistons.
 
Boostediesel said:
is it just me or does it seem like most of the trucks melting pistons are running the Smarty,TST or both? i dropped a valve seat in my 03 due to my injector hanging open and trashed a piston.so now after talking to Tim at TRE i am purchasing the QSB 480hp Marine Pistons,with coated skirts. i think for the guys running an 03-04 this is an awesome piston, without having to drop $3grand for a set of the steel pistons.
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If you have some pictures of these pistons post them up so we can see what they look like.

I was just reading through some to the post on this thread and getting caught up on it. The times that I have melted pistons have been running programs with extra timing in them. I ran my truck for 2 and a half years on the circuit with out a problem . I tried a program with extra timing in it and melted it the first trip down the track I could here it and feel it in the truck. The other time I burnt one was when I had an injector hang. I think it is all about the timing with the extra events creating too much heat. Bean is probably right if you could get it down to one event it would probably save allot of motors. I think the reason the D maxs aren't melting down as much is the Aluminum heads will wick the heat off better and take more timing plus they are able to know how much timing they are programing into them. When we are able to have EFI live so we know what are engines are doing timing wise it will make a huge difference.
 
i do not have any pics,i will google them and see what i come up with. i forgot to say that the pistons are on order from Cummins. Tim from TRE called cummins to order them and there were only 4 pistons in the US. he told me that Cummins was making some more pistons. i have been waiting almost a month for these pistons but as soon as i get them and have them coated i will snap off some pics.
 
The QSB480 piston is not coated. At least not the one's have seen. And I've seen many.
 
droachcummins said:
I was reading some posts earlier in this thread about the newer cr's burning so much more efficiently causing higher temps at your piston than at your egt proble. If you look at the older gen's, duramax's, or even powerstrokes, they don't get as good fuel efficiency and you don't hear of them melting down as much and they blow more black smoke. Now my question is what exactly does the smoke switch do? Because i know when i turn it on it really makes the black smoke fly.
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LOL this is a joke right?

Boostediesel said:
is it just me or does it seem like most of the trucks melting pistons are running the Smarty,TST or both? i dropped a valve seat in my 03 due to my injector hanging open and trashed a piston.so now after talking to Tim at TRE i am purchasing the QSB 480hp Marine Pistons,with coated skirts. i think for the guys running an 03-04 this is an awesome piston, without having to drop $3grand for a set of the steel pistons.
Click to expand...

You can use the QSB 480 piston in any of the CR's as long as you use that style injector.
 
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