Air Temps with stock i/c
Thread Starter
Joined: Jun 2005
Posts: 4,945
Likes: 32
From: Davie, Florida
Air Temps with stock i/c
i was just curious what others air temps are with a stock i/c normal driving and wot, in florida i get in the mid to high 40s normal driving on a warm day sometimes 50s when wot..... and tonight it got pretty cold out so i took it for a ride and noticed cruising at 75-80 it went slowly to the high 30s..after my first pull it went to 50 . i figured it would of drop pretty quicky after it hit 50 but it took its time go back down and went to 45 and wouldnt go drop anymore..
do remember that the IAT sensor is located under the UIM. it would read the heat generated from the block with cold air cooling it down, not ambient temp. i often read 50-60˚C on a fairly hot day and reaching upto 70˚C at idle.
When i'm on the highway starting with a cold engine i'll get about 20-30c above ambient. If the car sits it'll soak up to about 60-70c (absolute) but will never go down below 40-50c.
I have a boost switched intercooler sprayer so my wot pulls don't heat up as much, and it cools down much faster.
I have a boost switched intercooler sprayer so my wot pulls don't heat up as much, and it cools down much faster.
the stock intercooler doesnt do much to remove heat from the intake charge, maybe better then nothing but just barely. its also like a big heat sink. so i wouldnt be surprised to see very high intake temperatures. Also, cruising temperatures dont really matter. the intake charge wont be compressed until you're under boost, and therefor wont be as hot. If you're cruising on the highway you will probably see something like 20c over ambient. in stop and go it will be higher due to heat soak. And finally the stock AT sensor reacts slowly so even under full throttle/boost you wont see the true temperature of the intake charge until you're on it for a little while. Same goes for after the car has been sitting in traffic.
FD3S2005...
It's not just IATs you should examine. Pressure drop is another consideration. While I suspect it's pretty high on the stock IC (maybe 2 psi?), I don't remember ever seeing any numbers.
It's not just IATs you should examine. Pressure drop is another consideration. While I suspect it's pretty high on the stock IC (maybe 2 psi?), I don't remember ever seeing any numbers.
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Thread Starter
Joined: Jun 2005
Posts: 4,945
Likes: 32
From: Davie, Florida
if so i dont see any drop except with the transition
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