I added a 5bar pressure senser to the end-tank of our intercooler to monitor pressure drops across the core. I log both on the AEM and can graph them over each other. Comparing readings from that senser to the intake MAP sensor I was getting a max of 1psi of drop at 24-25psi (500whp) of boost last night. This pressure drop figures in the intercooler and all the piping leading into the intake manifold, so the results where very good!
We also intalled our prototype water/alcohol injection kit and I'm testing it out right now

 

The low pressure drop is good to know.

Do you guys have an idea of what type of hp and tq gains you would see on a stock turbod car with cams and eng. mngmnt by adding your i/c. thanks - Wayne

 

I heard that if you dont have a high tech EMS system that can log things like that, that another cheaper alternative is to weld two nipples onto both end tanks of the intercooler, and slip two party baloons over each one of them, go out and do a highway run and see which one blows up more, or which baloon pops first. If you dont pop them, then you can take the ballons and make neat animals out of them by twisting them up.

Just kidding, good info, thats a good number across the core.

How about temp drop?

 

You really should use single, low-range sensor if you want to accurately measure pressures in the few-psi range. By using a 5 bar sensor and comparing it to another relatively broad-range sensor to measure 1 psi, you've got the measurement uncertainly of the 5bar sensor stacked on top of the uncertainty of the MAP sensor. Basically you're trying to pick up a needle in a haystack by using a forklift. Two forklifts, actually.

The preferred way to measure intake pressure drop is to plumb the compressor discharge and the intake manifold to a differential pressure gauge (or transducer). Use a 0-5 psi range gauge/sensor. This will give MUCH more accurate picture of what's going on.

 

I've done what you said and I have a mechanical delta P gauge, trouble is, it's hard to read when your're flying under WOT with 600whp on tap. The 5 bar map sensors I use are the AEM KAVLICO pressure sensors. They are very accurate and repeatable to within 0.05% of the voltage span (0-5 volts).

-Martin

 

I want you know this info too!