@stevebuchanan posted:
I have been working with Jon Haas offline and he said that using soft plumbing to the MAP sensor is helpful because it dampens energy pulses from the intake. Thus, I may try using 3/16 rubber vacuum line connected to a fitting like the one pictured above. The runners on my manifold are already drilled and tapped for nitrous and the fitting might simply screw in. The lines would tee towards the firewall. The Holley ECU has the MAP sensor built in and the combined vacuum line would extend and attach to it.
If I went with IAC, it could be plumbed the same way and not difficult to try it. Since the air (controlled vacuum leak) provided by the remote IAC is not affected by pulsing, I could make it with hard brake line.
I found a place to mount the CPU right over Jon's Ignition Controller on the firewall.
I personally think that there is a degree of experimentation with all of this? Just finding places to mount things alone can be a challenge and keep in mind that you want to be able to access or service these parts as easily and simply as possible.
Lots of things want to occupy the same space.
I think that all you need to do with the MAP connection is connect it just like you would a vacuum gauge. What it is doing is telling the CPU electronically what a vacuum gauge is telling you. That part isn't rocket science.
Mine wound up with a rubber hose to run the connection to the back of the engine where my vacuum manifold is. For me, these were the best locations for all considerations.
It is up to the software in the CPU to interpret what the engine needs and is doing. Not you.
It is the interaction of the various sensors and the software of them to make the instant changes. That's what the software is all about.
The software for an 8 stack IR system is a different program then a single 4v plenum intake.
You cannot make an 8 stack IR manifold work the same way as a single plenum intake. Adding huge plenums is attempting to turn the IR into a single plenum manifold. It can be done, but what is the point? Then it is no longer an IR manifold?
