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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I think because so many guys over the years have been told and repeated to other what they were told about 03's not being able to be tuned. Although they are restricted on raising or lowering idle, I think everything else can be done. With the cams I tried I never had to raise idle anyway so I never understood why someone else like an 03 be able to run them.
What's the normal idle? Isn't it around 650rpm? My truck/cam combo won't idle below 750-800rpm or it stalls out even with the tune, Silverbullets truck with the sidewinder would not idle at the stock rpm so to get it to run he had to bump up the idle by about 200rpm give or take. The more agressive the cam the more likely the idle has to be bumped up or it'll stall.
From: Minot AFB, ND in person, the 'burgh at heart
If I recall, the OP wants to run a cam on the Superchips tune. If thats the case, good luck. For torque grinds you've got your choice of the 260 or sidewinder, and both of those will be hit or miss as far as the 03's are concerned running on a canned tune.
yeah im running a KRC 210 on a 110lsa, but I may have gotten lucky. No two 03 motors seem to be the same as far as ease of tuning goes. for your best bet, you may need to end up going custom tuned. Either way, your pcm still might not accept it. hemi's are extremely finicky towards tuning. Hate to be the debby-downer, but I say it like it is. I got lucky. You might not.