So How Efficent Is My FMIC Really?

TurboDave

TurboDave

Member +
Bollocks, if the pipe which enters the cooler is warm and the pipe which exits it is cool then obviously the cooler is cooling the air.

The capabilities of a tidy size intercooler on one of these cars is easyily capable of cooling the amount of pressurised air that a TD04 can flow.

Intake temperatures will not be a problem anyway.
 
weeJohn

weeJohn

Lifer
Its impossible to work out how efficient your cooler is on the car, as the variables are to erratic to give an accurate result.

You need to feed a constant temp in to the cooler, blow a constant ammount of air at a constant temp accross the cooler (while it is on the car) and measure the outlet temp then.

With the engine running and the bay hot you will get soak, so it needs to be off to test the cooler.

The front end is not designed to house a big cooler. Ideally you want to build an "air box" for it to sit in, that is open at the front of the car and directs all air in to the cooler, but depending on what is behind it will also affect how the air passes through it.

Its irrelevent really, it will be cooling, and if you get an extra 1% efficiency, I doubt you would notice it on the road.
 
Gee

Gee

Member +
I'm not trying to squeeze every last piece of efficency out of it, I just want to make sure it is going its job.

Car is being mapped on Tuesday and I will be running 1.4bar, so want to make sure inlet temps are at a good temp.
 
H

-Harry-

Member +
^^ thats what I thought. What ecu you running Gee? Should have a temp sensor.

I have a metal one thats plugged into my autronic sm4. It was in the inlet manifold but suffered from heat soak. It now sits about an inch from the inlet. Thats the type of sensor you need. I wouldnt put that ebay mess anywhere near the intake. You can also use the air temp sensor on the ecu to do cool things like mine pulls timing if the intake air exceeds 60 degrees C.

Id say youll be fine. Mines got an ebay special cooler that 40% covered and I still get great inlet temps in summer.
 
Gee

Gee

Member +
My Power FC commander does show air temp yes, I did not know what temp this actually was thou? What is it?

EDIT:

Seen this:

The PowerFC has a map for inlet air temperature which is not accessible by the Hand Controller but the table is still used by the PowerFC if it picks up Air Temp from the factory sensor.

This is in relation to the Power FC for Skylines thou, so not sure if it is the same? Was taken from here:

http://andrewmcc.com/powerfc-faq.htm

Do Starlets have a stock inlet temp sensor? If so, there is an air temp option on the commander, but the above suggestions it can not be accessed by the controller?? Strange.
 
Last edited:
E

enginetuner

Fresh Recruit
Gee said:
My Power FC commander does show air temp yes, I did not know what temp this actually was thou? What is it?

EDIT:

Seen this:

The PowerFC has a map for inlet air temperature which is not accessible by the Hand Controller but the table is still used by the PowerFC if it picks up Air Temp from the factory sensor.

This is in relation to the Power FC for Skylines thou, so not sure if it is the same? Was taken from here:

http://andrewmcc.com/powerfc-faq.htm

Do Starlets have a stock inlet temp sensor? If so, there is an air temp option on the commander, but the above suggestions it can not be accessed by the controller?? Strange.
Click to expand...

No Gee , the Starlet does not have an inlet temp sensor from stock...
The best place to fit charge temp sensors is in the intercooler pipework approx 6-12 inches from the inlet manifold...
If you can mantain temps of below 40c your intercooler is working fine....
 
tucka

tucka

Member +
Gee said:
Thanks for that Engine Tuner.

What air temp is the commander telling me then?
Click to expand...

yeah agreed i would like to know this to, my air temp shows on a typical mornin first thing 7c and when the car is fully warmed up the air temp shows 25c ...

whats yours show gee??
 
weeJohn

weeJohn

Lifer
Gee said:
Thanks for that Engine Tuner.

What air temp is the commander telling me then?
Click to expand...

It is probably taking a reading from the air speed sensor at the drivers side end of the inlet manifold.

Thats what the standard ecu uses.
 
P

petbeemer

Member +
Jesus how hard can it be? put your temp sender in the inlet rubber of the plenium, its little diode on the end of a piece of wire, what pressure is going to effect it? all you have is wind going past it! and not that much.
clamping it to the cooler or pipework pretty much defeats the object of the process.
Matt will tell you what the air temp reading is when its mapped on the rollers as they have to monitor it, as its false(blown by a fan) it should be better out on the road.
Temps will obvioulsy change with ambient temps anyhow,your using it as a study thats all
 
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