So we all know the arguments with running the 128kpa reading map sensor with a controller that only has breakpoints up to 105kpa leaving you with less resolution out of your sensor. The map sensor port on a LS3 intake is too big to run the correct sensor for the controller. Over the years I have resolved this issue in various ways on different builds trying to find a better solution. I swapped a LSX376-b8(steel block LS3) into my personal C5:
http://www.mp3car.com/forum/general/...corvette-droid So I have got to spend time hunting the right solution. And I found it and it is such a proper, professional, and correct solution that I had to share it here. Because this is the end all correct map sensor solution for an LS3 swap with a gen 3 controller.
The two sensors use different size mounting holes with the ls3 sensor being larger..
So we are a magnuson dealer. We install a lot of Superchargers. And let me tell you, Magnuson has the right correct solution. just labeled differently. Let me show you..
For Magnuson it is much easier to make just one blower casing and make this adapter so if you mount this blower to a pre 2008 car you can still use the oem map sensor. Because we are a Magnuson dealer and we have installed so many and some need this some don't, there was an extra laying around.