Best location for the IAT
10-17-2004, 03:56 PM
#1
Best location for the IAT Where do you supercharged guys install the IAT?
Vortech want it before the SC, but I see many people having it after that.
To me it makes more sense if the PCM can read the real temperature and set fuel and timing on accord with it, but I guess Vortech did also some research...
Stefano
Vortech want it before the SC, but I see many people having it after that.
To me it makes more sense if the PCM can read the real temperature and set fuel and timing on accord with it, but I guess Vortech did also some research...
Stefano
10-17-2004, 04:08 PM
#2
Source, JerryW, the premier ford tuner
The air temp sensor MUST be moved, this is not an option. There are basically four things that control an engines likelyness to knock; Fuel octane (meaning its ability to resist autoignition), combustion chamber design, cylinder pressure and air temp. When you compress air, the temp goes up. If you don't move the sensor you have no idea how hot the air is going into the engine. If it's a 20F day or a 80F day, the temp of the air going into the engine, and thus it's timing requirements, change. Look at an '03 Cobra, Lightning, Roush StageIII, Saleen, even an old SuperCoupe, where is the air temp sensor? In the intake after the cooler. Why? Because you MUST know the air temp going into the engine to control the engine correctly. Now, some will say that the Cobra and Lightning have a sensor before the blower, they do. They also have one after...Every OEM does it on their blown cars, there is a reason for that and it's a good one.
10-17-2004, 04:22 PM
#3
TECH Addict
Join Date: Feb 2004
Posts: 2,826
Likes: 0
Received 0 Likes
on
0 Posts
It only makes sense to put it after the supercharger, since the supercharger is going to significantly change the temperature of the air. You really don't want boost and wrong timing.
10-17-2004, 06:00 PM
#6
vortech with the mail order tune from superchips inc is very conservative in timing,
I don't know why else they do that, but on the ford side relocating the act/iat sensor is the first thing a good tuner will do when they tune a blown car
Some reading/past threads on the subject.
http://www.ls1.com/forums/showthread.php?t=394382
I don't know why else they do that, but on the ford side relocating the act/iat sensor is the first thing a good tuner will do when they tune a blown car
Some reading/past threads on the subject.
http://www.ls1.com/forums/showthread.php?t=394382
Trending Topics
10-18-2004, 12:20 PM
#8
Done!
Car runs the same but without the nasty 7-8 KR accelerating in 4th gear at 60 mph and the TCC locked
The outside temperature is 50F and after the SC I have now 90F.
I don't know if Vortech is compensating the wrong measurement with some other trick, but that KR was getting me crazy!
Thank you guys for the help
Stefano
Car runs the same but without the nasty 7-8 KR accelerating in 4th gear at 60 mph and the TCC locked
The outside temperature is 50F and after the SC I have now 90F.
I don't know if Vortech is compensating the wrong measurement with some other trick, but that KR was getting me crazy!
Thank you guys for the help
Stefano
10-18-2004, 01:08 PM
#9
TECH Enthusiast
iTrader: (6)
Join Date: Jan 2003
Location: Black Forest, CO
Posts: 665
Likes: 0
Received 0 Likes
on
0 Posts
With my Vortech I moved it into output side of the aftercooler. My car is an 02 which has the IAT built into the MAF. I bought the IAT and grommet for a 2000 Corvette, drilled a hole into the aftercooler ,and installed the sensor. It was an easy matter of cutting/rerouting the wires from the MAF up to the new sensor.
Originally Posted by tici
Where do you supercharged guys install the IAT?
Vortech want it before the SC, but I see many people having it after that.
To me it makes more sense if the PCM can read the real temperature and set fuel and timing on accord with it, but I guess Vortech did also some research...
Stefano
Vortech want it before the SC, but I see many people having it after that.
To me it makes more sense if the PCM can read the real temperature and set fuel and timing on accord with it, but I guess Vortech did also some research...
Stefano
10-18-2004, 05:54 PM
#11
TECH Enthusiast
iTrader: (6)
Join Date: Jan 2003
Location: Black Forest, CO
Posts: 665
Likes: 0
Received 0 Likes
on
0 Posts
I have not seen any KR at all since relocating the IAT sensor.
Originally Posted by tici
Vortech C5, Have you noticed some chenges?
As said, my KR is gone...
As said, my KR is gone...
