I Post Entirely Way Too Much
Join Date: Jun 2010
Location: Chicago, IL
iTrader: 2 reviews
The reason for having the iat relocated like it is on your discharge pipe is to get a more accurate reading of the air temp going into the motor rather than the air temp going into the supercharger. You need to splice into the two outer wires of your maf harness to make the external iat work. If you are thinking about running meth this is the way you should do it. You want the air temp after the meth has been sprayed and as it is going into the motor. If you keep the iat integrated and stay draw thru you will not know what your actual air temperature is.
What version is your Vortech? If it is a V1 S trim with a 3.33 pulley and powerpipe you will see around 10.5psi. If it is a V2 you will see around 1 psi more.
I ran my V1 S trim with 3.6 pulley and powerpipe with the external iat in the discharge pipe for two years non-intercooled. I would not hesitate to run a 3.33 pulley on this setup. Who is tuning the car?
You can reuse your maf but may not get as accurate of a reading as a specific blow thru maf.
2004 DSG Mustang Mach 1 4r75w - 508/436 on E85. 460/396 on 93. Intercooled Vortech V1 S trim, Circle D 4c converter, BCA valve body, VRS o/r x pipe. 11.37 @ 120.8 mph 1.63 60'