Stock Idle cam
#51
TECH Veteran
Quite often a lack of low end torque is a tuning issue. My truck puts down as much or more torque at 2700rpm as a stocker does. I posted the dyno sheet to show it and my dyno was done with the converter locked which would also show a bit lower torque number than the torque spike you can get from an unlocked converter dyno. My cam is what some would consider to be big for a 5.3L. The 3600 stall was something that stuck right out in the first post. Inch Up also posted a comment on the converter.
#53
TECH Veteran
I didn't really dyno it any lower than that. If I'm wide open I don't really tend to spend much time below 2700rpm and I've never dyno'd at part throttle. I've worked on the tuning a bit more since then and think I might be able to squeeze a bit more torque out of it yet at the bottom. The 6.0L with the same cam is very nice even down low especially if you have any LQ9. A couple of my friends are running the same cam.
#56
TECH Veteran
With a stock converter that would be on the edge of being where you want with an LQ9 (I believe what your truck has???). One of the guys with a Silverado SS has the same cam with a stock converter and is very happy with it. He's a member on here, but I have to dig into my brain to remember his name. For a stock converter though and all around performance I'd look into a 216-220 range on a 112-114LSA. I've done the XER273HR in an SSS with a stock converter and it was ok, but below 3k felt like it was stock.
#57
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this is just my opinion, but for whoever wants the FEEL the power on low end 2500rpm and under then dont do a cam swap, do a gear swap or a converter that is where you will definately notice power..... so in my opinion, it is not smart to put do a cam swap if you thats what you are looking for, that is a waste of money..
#58
TECH Veteran
Here is the guy who has the same cam I have in a Silverado SS. (LQ9)
https://www.performancetrucks.net/fo...d.php?t=417383
https://www.performancetrucks.net/fo...d.php?t=417383