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Hello, i have the LS2 engine with magnuson supercharger in my BMW e46 drift car, i have a problem with high IAT. It is around 160*F when I drive hard. What You think, is it too much? How do You handle with big temperatures in supercharged engines? I have 3 radiators in front of the car to cool down the charger, but they are probably not sufficient.
My charger give 0.5 bar ( pulley 3,2" + overdrive crank pulley ( 8" )
My tuner says that the temp like 160*F is to much and the engine loss the power in this temperature. Maybe it is not to much and I have not afraid it ?
is your pump strong enough to pull through the 3 heat exchangers? looks like you have them plumbed in series, I would try plumbing them parallel or upgrade your pump
edit= your setup has many restriction points and that really kills the flow rate. most water tank pumps really drop off when the pressure starts climbing.
What is Your boost ? What engine and which charger?
My fuel is PB 98, i forget to write.
Yes ly6. 10.lbs whipple 2.9 .I also have a 2 gal reservour .70% distilled water/30% antifreeze .even though you have 3 exchangers , they look small. Plus no fans.. Unless your driving 75 mph , not enough air flow. Buy some pusher fans and attach see what happens. If you go on speedway.com , look in garage sale sec. I got my set up for 500$
You have three heat exchangers for the Whipple, correct?
And two of them have puller fans behind them, correct?
You have two intercooler pumps, correct?
And you are only pushing 10# of boost?
Seems like a lot of heat for such a robust cooling system and such low boost. You may want to seriously consider E85. Or reinstall your a/c and get an active interchiller.
You have three heat exchangers for the Whipple, correct?
And two of them have puller fans behind them, correct?
You have two intercooler pumps, correct?
And you are only pushing 10# of boost?
Seems like a lot of heat for such a robust cooling system and such low boost. You may want to seriously consider E85. Or reinstall your a/c and get an active interchiller.
All correct, but my boost is only 8 PSI
Maybe this 'old-fashioned' fans are not strong enough for my application? What You think?
I don't Understand Your last sentence "reinstall your a/c and get an active interchiller" What You mean ?
You could look at replacing the oil cooler cores for proper water to air cores. Also could you confirm the layout of the radiators? Fans shouldn't be needed as once you are moving there should be sufficient airflow over them.
What pump are you using? As others have said it could simply be that the intercooler isn't getting enough cold water to pull the heat out. Also what size pipe work / entry and exit to the intercooler? This could be causing some restriction.
Are the coolers shrouded to ensure the air HAS to go through them (on the side ones at least)? What's you engine coolent temps like? You could maybe add a larger heat exchanger in front of the main engine radiator.
Also important to make sure all the air is out of the system! The slightest bit can dramatically reduce performance of the system.
Having purpose intended heat exchangers with properly ducted fans would certainly help. Also, making sure your sensor is after your intercooler is necessary to get an accurate reading. But the active interchiller I mentioned is a heat exchanger that is tied into the a/c system. It chills the supercharger coolant using the a/c, and can achieve sub-ambient intake air temperatures. It does require you to either have your a/c system installed and hooked up, or a stand-alone 12v a/c system just for it.
When I installed mine, whipple told me I needed at least a 2 gal reservour. What size are you running? The heat x don't hold much , so if your res is small, it's going to be hard to keep cool. Plus ls1 is right, Iat needs to be after intercooler. I would get rid of 3 small heat x, run 1 decent size w/ fans, and a bigger reservour with distilled water. Also, what's up with alt belt in pic?
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LS2 engine supercharger Cooling system 
