Quote:
Originally Posted by
jjhmln
you are right , the aftermarket CAi's are closer to the heat that the engine generates, plus when the fan kicks on it is blows right into the area where the aftermarket CAI are located , where as the stock intake would block it, as it located foward of the rad, plus after getting back to the stock intake my temp went down to 192 as it was running 198 to 201 with aftermarket CAI, the air is going where was meant to go
I can argue either way, but, I also have logged before and after the install of my Fujita CAI. Here are some actual facts:
1. You only measure temps when you are at speed.
2. Most of the CAI's see a benefit from reduced restriction in the intake track, not, lowering the IAT's.
3. The factory intake is there for two reasons cleaning the air and reducing the sound. It does a very good job at the expense of some hp.
4. Neither the factory intake or aftermarket systems succeed in getting to the outside.
The following data is from a Fujita CAI with a 3" hole drilled (in the plastic bulkhead) immediately below the filter element.
5. All intake systems will show a temperature higher then ambient, even if the intake head is truly in the outside air. This is because of the heat soaking of all the components under the hood.
6. I am not advocatjng the Fujita unit, but, I can tell you this from logged data:
a. The system flows far better than the factory unit at WOT. This is easily deduced from the way the MAF values are skewed when you initially install the unit. In other words you have to alter the MAF tables values in HPTuners to correct for the new intake.
b. The IAT
does not increase with my set-up. The ambient temp and IAT track are about six degrees apart when the car is moving. You have to remember that a temp sensor is a very slow moving device and the real time temps may be different than that which is displayed. As an example, you idle for five minutes, than accelerate to 100, the IAT will take time to show true temps because of the mass of the sensor and its mounting.
With all that said I think that Fujita and Kappashere were not very fair to our membership when they sold us the initial CAI's. There was definitely a problem with contaminants in the filter element. I purchased the unit from Kappashere and they would not return my calls when I encountered the MAF issue -
they basically let us work it out ourselves.
