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Thanks all for the feedback and assistance as HP Tuners/ 0411 swap is new territory for me. It makes sense that Lextech gives you the base parameters and since every truck is different/ mods/ etc. it is up to you to fine tune. He did say it will fire up and idle so that is good! From there I will data log and post spark and fuel tables as it seems you guys have tons of experience dialing these 454 vortecs in.
I am just excited for the expandability and finer settings available by swapping in the 0411 unit. Being a 96, my truck is on the cusp of the OBD2 switch and definitely has some "quirks and features" as doug would say.
gibson short tube headers (and that they need some trimming to clear something on the heads?)
Interesting thing I noticed today when installing the HD headlight harness I got from @5vortec7 I think this tunnel underneath the passenger side headlights is where the intake gets it's suction from. I know the air box has a tube that goes off into the fender but could never figure out where it went from there. I guess there's plastic tubing that runs all the way here. Not exactly an open/direct flow of air, but it probably flows up from under the bumper easily enough. Would ya look at that... A 1998 truck with an OEM true cold air intake. Cool.You must be registered for see images attach
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It works pretty well at highway speed too. I really never have understood the cold air intake craze, especially on newer trucks. The 2014 silverado I had stayed within 1* of ambient on the IAT sensor once I was moving.
I’ve noticed IATs within a few degrees of ambient at about 35mph. Once stopped though, IATs quickly climbed to 15-20* above ambient. That was at idle. I wonder if there is just not enough airflow to keep the IATs cool. I’ll have to monitor that to see how long it take to cool back down.