I dont expect any programming secrets to be given away. With the new programming and lower exhaust temps I have to wonder where all the heat is going? If the same amount of fuel is being burned at the same rate then a certain temp is going to be produced, cant change that. If the exhaust temps are lower then it would leave me to believe that the cylinder temps are going to be higher. I know on bigger industrial engines exhaust temps are measured in the cylinder head and measurements are taken there, keep the temps to a safe level there and you dont have to worry about turbo temps. Our typical egt setup is usually close to the turbo where the gasses have had time to expand some and cool so a true cylinder temp isnt read.
The question is, have you guys at MADS found a way to burn fuel so its not burning as hot? or is the timing simply changed in a way that more of the heat is absorbed by the pistons before being exhausted out? I'm interested in lower exhaust temps, especially when towing but not at the expense of melting a piston. Around here altitude is 4500ft and goes up from there for a typical outing, and I have not heard about a single burned up turbo with any of the power adders out there but have heard about burned pistons from several people. I'm not bashing in any way, but want to know if I decide to go with a Smarty that it's safe for the entire engine and not just the turbo.

 

I have been told that its the timing that helps keep cooler temps. The Smarty is safe for your engine, until you pass onto higher levels. then you have to be careful. If you have a stock truck, sw 3 will be rated safest for it. I don't think you would have any problems, and if you do, thank God for DTR!

 

You're exactly right. No, there's no magic potion... it's all in the timing. More timing = lower EGT's. The cylinders are absorbing it.

I don't think it's to the point that you need to be so concerned about it though. EGT's haven't been lowered to the point of over heating the cylinders to melting points.

If you're concerned about towing... don't do a thing and if it blows... it's D/C's problem.

All the programmer out there that claim better mpg's are manipulating timing.

 

Of course, too much timing will damage the piston crowns before the EGTs reach dangerous levels, but I'm sure Marco has taken that into account!

 

I still have to wonder what else is going on with the new programming, all the programmers and several of the chips are changing timing, none of them to my knowledge are lowering egts while adding power at the same time, except for the Smarty and JR.
As a side note DC at least in around here has not been very good at all about warranty's on any kind of piston damage. Of the three engines I personally know about that lost pistons only 1 was covered(he claims it was anyway) and it shouldnt have been.

 

I think the thing people need to keep in mind is that as you advance timing the safe egt is going to drop temp wise. So if 1400-1500deg is safe on a stock 3rd gen with it's stock retarded timing then cylinder temp is likely too high at those egts with advanced timing from Smarty, TST, etc. Too bad there isn't a decent way measure temps right in the #6 cylinder, it would remove the guess work.