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I got tired of my blue IC pipes, and i wanted a change. I stripped the paint and tried to polish them, and found out that wouldn't work. So i painted them. I wanted something between the Farmall red and IH orange, i found a compromise, an orangeish red. I also smoothed out the compressor manifold, took out some excess casting slag and cut down sharp corners. I think it looks pretty good, it's not perfect. I also drilled and tapped the hot side for the MAP line and boost gauge. Jody recommended to change the MAP sensor reading to the hot side, as it builds boost there faster, putting the truck into "full fuel" sooner. Anyway, check out the pics..
I think it looks pretty good, it's not perfect. I also drilled and tapped the hot side for the MAP line and boost gauge. Jody recommended to change the MAP sensor reading to the hot side, as it builds boost there faster, putting the truck into "full fuel" sooner. Anyway, check out the pics..
Looks great Kris. I like that TN unit sitting there too. I see you didn't want to just tap once and tee off of that. I am curious about the "hot side" results. Anything on the butt-o-meter or otherwise yet?
Now why would you make me to quote myself on this? You know I am curious about the hot side signal difference. Give it up Kris. There has got to be a difference, one way or another.
OK, thanks. You know I'm always looking for a few quick HP. I have to think that there is something to it. I would think boost builds at the other end where it meets an obstruction and works back, but if Jody says no, and even Gene says no, then I was wondering?
I better be careful, I'm not sure Gene said that, and he will be the first to let me know, but that comment is based on his air flow comments from a long time ago. I don't think I can even find that thread at this point.
Remember the IC is a restriction too. We are talking just a mere restriction, maybe 2-3psi drop across the IC, however that 2-3psi is all i was looking for here, the IC stops up the pressure for a few pounds while the turbo fills the hot-side pipe, and then bam pressure right into the MAP before the engine even sees it. Or so i think..
Remember the IC is a restriction too. We are talking just a mere restriction, maybe 2-3psi drop across the IC, however that 2-3psi is all i was looking for here, the IC stops up the pressure for a few pounds while the turbo fills the hot-side pipe, and then bam pressure right into the MAP before the engine even sees it. Or so i think..
I think you are right about the pressure drop but not for the reasons you cite. The pressure drop is due to cooling. I don't think there is a big flow restriction in the stock IC. Hot air=higher pressure whereas cooler air yields less pressure for the same volume and hence a pressure drop across the intercooler.
This is most clearly evidenced by a balloon filled with air. Put it in the freezer and see what happens, but you knew that. I am trying to figure out what this means for me and my engine.
Is it truly beneficial to take the pressure on the hot side or not? Seems to me I'm just adding more fuel that cannot be utilized as the same volume of air is going into the cylinder. Why not just go with what is being seen right before it goes there? And we could even make it better by cooling that air even more (aftermarket IC) for more potential but if the MAP sensor does not take this into account, we will lose potential, no?
It would seem there is a gaping hole in the fuel mapping strategy of our trucks as it seems that ideally the puter would want to get an air temp reading along with boost reading to make it's fueling strategy rather than having the AIT sensor at the front of the intake.
I would think that with the correct temp and boost # the puter would be able to fuel the truck more accurately because volume of air can thus be determined.
In the end, the higher temp intake air occupies more volume than cooler air, goes through the IC and drops in pressure but is still the same volume of air, just in a smaller space. What does this mean to me? How do I take advantage of that and what will a better IC do for me?
Caveat, I know the intercooling mods reduce EGTs. It is about quality air. What I am getting at is taking advantage of that quality air to make max HP instead of lowering egts.