lastrights I was wondering if the datalogging etc. works on the 2nd gens. That would be a nice feature that I never had with the 3715 I was running on my '98.

 

What????

 

These are two separate issues: valve timing and ignition timing. The valve timing in relation to the crank is mechanically set in the Magnum engine. At the factory, the stock cam is simply installed "dot-to-dot" and that's the end of it.

When you install a custom cam grind, you have to degree-in the cam to make sure that the cam's geometry is the same as advertised on the cam card. In most cases it will be, but sometimes you will have to adjust the cam a few degrees advanced or retarded to get it "degreed-in." On some wild cam grinds this becomes a necessity or you will have valves getting intimate with pistons!

As for ingition timing, a hot cam may allow you to run with more spark advance for greater efficiency at higher RPMs. As far as I know, a PCM or tuner cannot "undo" the valve timing setting on an engine any more than the old mechanical advance/retard at the distributor did. For example, with the better flowing heads and mild cam I'm istalling from Hughes, I may need to get a custom reflash so that the PCM can better handle the new air/fuel and ignition curves that my engine may require.

 

Has anyone had any problems with the pinging problem returning after installing a performance tune?

 

no problem with mine at all/ what plugs you have on, and you returned it ???

 

I don't have one yet, which is why I'm asking. Since the 'death flash' stopped the ping problem, I wondered if undoing it would cause the pinging to return.

 

man, i have the Hypertech max energy but it basically only has the speedo, and rev limiter for my 5.2L all the other options havent been written for my truck so it kinda pisses me off and itll only let you play witht the 3 stage towing program if you have a deisel so if you think the superchips is a bad dude i migth sell the hypertech and go superchips....i do have a question though...if i bought a stroker kit and converted the 318 to a 390 would the programmer still work since they only list the 318 and 360 stock models?

 

I am running NGK plugs in my truck, but I started getting a little mild pinging with the performance tune. I did put a tank of Marathan gas in it that really caused it to ping (10% ethanol 93 octane). I just reset the truck to the 87 tune until I ran most of it out. I then filled up with Shell 93 octane (on my last tank) and reset the truck to the performance tune. It still pings but not nearly as bad as it did. I am thinking I may still have a little of the bad gas in the truck, because it never pinged before on the performance tune. If it still does it after a couple more tanks, I may switch to a colder plug.

 

I got my super chips a week ago. I have death flash. I ran 91 mode and Pings under a decent load around 2300 rpm. Now My truck like complete ****. Its got a bad intermittent misfire. Ive got no cel. I thing I might of blown the plenum gasket. Last I check it was fine. Also I have it currently in economy mode.

 

How many of you guys experiencing the pinging have repaired your lower intake gaskets (plenum)?