High IAT2 temps and KR

ctuinstra

Goblin Guru
No I didn’t clean them , Hate to admit it but I don’t know what exactly you are referring to ! Guess I need to goggle LAMINOVA TUBES . I didn’t know that had a correct way to go
If you install the Dual Pass, you will take them out and put them back in a specific direction according to the directions. At that time, it's a good time to clean them (or clean them anyways).

This is what they look like. The get full of dirt and oil from the intake.

23487


Here is a post from a while back that may help also.

 

ctuinstra

Goblin Guru
Crap! Once again, I've been fooled by another TC. You don't have the same intake as the SC cars like ours. Sorry about the confusion.
 

Ross

Goblin Guru
Well I installed my new pump and what a big difference in flow but my IAT2 still running at 156 temp. The temp. didn’t change at all even though I can definitely see a lot better flow !
So what should I do next to try and remedy the heat problem?
It looks like you are running a DF turbo intercooler like this one.
So you won't have an LSJ supercharger intake with the Laminova tubes that Chad is talking about.

Either way, you need air to get in contact with clean aluminum fins to transfer heat to the intercooler water.
So if either side of the system is blocked with oil, dirt, leaves, etc it needs to be cleaned.
Then you need air to get to it. Sounds like you are using the stock DF location for the front cooler.
Does your intercooler air fan work in the front?
You could add the cold air intakes thru the body panels at the front, or relocate your intercooler heat exchanger somewhere where it can get more air. The stock location doesn't get great air flow in my opinion, and is subject to heat soak. If you occasionally punch the throttle, it works fine, but get on the gas a lot, and you have a hard time getting the heat out.
23489
 

Zoom Zoom

Goblin Guru
It looks like you are running a DF turbo intercooler like this one.
So you won't have an LSJ supercharger intake with the Laminova tubes that Chad is talking about.

Either way, you need air to get in contact with clean aluminum fins to transfer heat to the intercooler water.
So if either side of the system is blocked with oil, dirt, leaves, etc it needs to be cleaned.
Then you need air to get to it. Sounds like you are using the stock DF location for the front cooler.
Does your intercooler air fan work in the front?
You could add the cold air intakes thru the body panels at the front, or relocate your intercooler heat exchanger somewhere where it can get more air. The stock location doesn't get great air flow in my opinion, and is subject to heat soak. If you occasionally punch the throttle, it works fine, but get on the gas a lot, and you have a hard time getting the heat out.
View attachment 23489
I had no idea what you was talking about :)
Yes the fan works up front. Even at idle it runs 156,
I’m using all stock DF equipment except new pump which works a lot better.. Guess I’ll clean the INTERCOOLER
 

Briann1177

Goblin Guru
There is no way the IAT2 temps on a turbo can be running 156 degrees at idle. Unless you're doing something way crazy like running the engine coolant through the intercooler. :) Are you sure your TMAP sensor in your intake tube is working correctly? When the engine is cold, turn they key on and compare the IAT and IAT2 temps. They should be within a few degrees of each other. Start the car, let it warm up, and see how IAT2 temps trend compared to ambient.
 

ctuinstra

Goblin Guru
I have to be careful here because the turbos are different than the SC but at idle is when you can have some of the higher temps because of the lack of cool inlet air (low air volume at idle). Obviously at fully boost, the highest amount of compression, will cause the air charge to heat up also. The lowest temps are usually see.with no boost but higher throttle position where the most air is passing through the intake, again with no boost. I’ve monitored ours and long periods of idling raises the IAT2 because of engine heat soak, not normally to 156! Just a few degrees and then during cruising the cool air cools the IAT2 back down.

It is often confused with engine cooling that high RPM will cause the engine to heat up and idling will cool it back whereas IAT2 tend to lower at high RPM (again, no boost) and raise slightly at idle (or low throttle) because of the lack of intake air.
 

Briann1177

Goblin Guru
Turbos are a bit different. Without taking charge cooling into consideration, the IAT2 temperatures will be the coolest at the lowest throttle position. No throttle = no boost. At idle, there should be no difference in temperature between IAT and IAT2. I could completely disconnect my water pump, and my IAT2 temps probably wouldn't move no matter how long I let it sit idling. Again, that's without considering the cooling system.

If you factor in the DF cooling system, then your IAT2 temps will be more elevated over ambient at idle due to the heat soak that you mentioned. I agree, definitely not to 156 degrees. I don't think I've ever seen mine get that high even after a full pull.
 

Zoom Zoom

Goblin Guru
I would like to take this opportunity to THANK ALL MY GOBLIN FAMILY FOR THE HELP GETTING THIS SOLVED. I put the stock TMAP and temp is now 88 degrees
Just like Rottys says just because it’s a new part doesn’t mean it will WORK :)
 

Zoom Zoom

Goblin Guru
There is no way the IAT2 temps on a turbo can be running 156 degrees at idle. Unless you're doing something way crazy like running the engine coolant through the intercooler. :) Are you sure your TMAP sensor in your intake tube is working correctly? When the engine is cold, turn they key on and compare the IAT and IAT2 temps. They should be within a few degrees of each other. Start the car, let it warm up, and see how IAT2 temps trend compared to ambient.
Say what your not supposed to mix 1/2 & 1/2 antifreeze like for the radiator. Oh crap I guess I’m man enough to admit I’m CRAZY.
WHAT DO YOU RUN JUST PLAIN WATER. I CAN’T be the only person that has done this ! I hope :)
 

Gtstorey

Goblin Guru
Say what your not supposed to mix 1/2 & 1/2 antifreeze like for the radiator. Oh crap I guess I’m man enough to admit I’m CRAZY.
WHAT DO YOU RUN JUST PLAIN WATER. I CAN’T be the only person that has done this ! I hope :)
I think he was talking about having the engine cooling system plumbed into the intercooler plumbing. Although pure water will transfer heat better.
 

WYGoblin

Well-Known Member
Up where I live I don't dare run straight water. The minute I do it will drop below freezing and do some damage. I run a mix of antifreeze and distilled water. That way I am good till about 40-50 below zero. I seen it get that cold here before so no chances for me :p
 
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