I just want to open peoples eyes as to the realities of the FMIC landscape and things to look for in regards to real data vs marketing hype... Interestingly enough i use a very good turbo outlet temp calculator that also generates a FMIC efficiency using data that is provided in this thread that answers your ?'s about starting and ending temps.
http://www.stealth316.com/2-turbotemp.htm
using this calculator with the provided data we can see how efficient each unit is in a real world situation and is all based in Physics Law(an exact science). heres the data i got using the calculator, feel free to try it yourself its actually very eye opening. When designing a FMIC I use this during prototyping to determine the best balance of internal fin density and charge row/ambient row height as we don't use an "off the shelf" core!
Turbo Outlet Temp Calculator
inlet temperature-(use the ambient temperature to standardize the test)
input pressure-14.5(atmospheric pressure this does not change unless you are at altitude)
output pressure-(this is the boost pressure seen prior to the fmic, add pressure drop plus datalogged pressure for this #)
compressor efficiency-70%(this can be found by mapping the #'s on a compressor map OR to datalog intercooler inlet temps, lets use 70% to standardize the testing as all are running similar boost levels)
Outlet Temp- (this is the temperature leaving the turbo and entering the FMIC)
Intercooler Outlet Temperature and Pressure Calculator
IC input Temperature-(this is the Outlet Temp from the previous calculation)
IC Efficiency-(This is the how efficient the FMIC is in this test, it is also the factor you play with to try and match up to the known plenum temp(ending datalogged ait at the end of the run))
IC Pressure loss-.5 (this is the pressure drop through the core, lets use .5 psi to standardize the test)
Ambient Temp-(this is the ambient temp and also the turbo inlet temp)
Plenum Temp-(this is the datalogged ait temp at the end of the 2-3-4 gear run)
now lets crunch the #'s...
HELIX-Intercooler Efficiency 86% through 3 gears
Turbo Outlet Temp Calculator
inlet temperature-85
input pressure-14.5
output pressure-14
compressor efficiency-70%
Outlet Temp- 249
Intercooler Outlet Temperature and Pressure Calculator
IC input Temperature-249
IC Pressure loss-.5
Ambient Temp-85
Plenum Temp-108
IC Efficiency-86%
ETS-Intercooler Efficiency 80% through 3 gears
Turbo Outlet Temp Calculator
inlet temperature-50
input pressure-14.5
output pressure-?
compressor efficiency-***using datalogged output temp***
Outlet Temp- 248 ***taken from datalog***
Intercooler Outlet Temperature and Pressure Calculator
IC input Temperature-248
IC Pressure loss-.5
Ambient Temp-50
Plenum Temp-91
IC Efficiency-80%
AMS-Intercooler Efficiency 79% through 3 gears
Turbo Outlet Temp Calculator
inlet temperature-58
input pressure-14.5
output pressure-14
compressor efficiency-70%
Outlet Temp- 214
Intercooler Outlet Temperature and Pressure Calculator
IC input Temperature-214
IC Pressure loss-.5
Ambient Temp-58
Plenum Temp-112
IC Efficiency-79%
SPEARCO/Code 3-Intercooler Efficiency 54% through 3 gears
Turbo Outlet Temp Calculator
inlet temperature-65
input pressure-14.5
output pressure-14
compressor efficiency-70%
Outlet Temp- 223
Intercooler Outlet Temperature and Pressure Calculator
IC input Temperature-223
IC Pressure loss-.5
Ambient Temp-65
Plenum Temp-139
IC Efficiency-54%
What this data shows is the efficency and also the FMICs ability to thwart heatsoak through 2-3-4 gears, you can also get single gear efficiencies using the data provided
