I have a very basic turbo s2000 with a rev hard log manifold. Engine is 100% stock with 170k miles. For cooling i have a full blow radiator and NO thermostat. I have a mishimoto shroud with their 2 slim fans. I even have a large custom front mount 19 row oil cooler. I even have a radiatoer cooling plate. Its running on a aem ems 1052u with a aem serial gauge. All my water temp reading are through the aem serial gauge which run the stock collent temp sensor

normally on cool days or during the night the coolent temps are about 185-210.

The car only over heats when its on the freeway and it moving above 60mph and also only when its during a warm day sunny day above 80 degrees. The coolent temps will climb fast to over 223 degrees on the aem serial gauge. If i run the AC it will over heat faster and worse. What is wrong with my car and what can i do? I even drilled out the thermostat and all that did was make the car warm up slower but it still over heats the same. My brothers s2000 is also turbo charged and he run AC all day long in hot sunny Los angeles traffic and he has no over heating problems.

Please help. What can the problem be? I have done all the cooling mods there possible are. Also How hot is too hot for coolent temps???
What can be wrong? Is it possible what i have a slightly blow headgasket? The car runs great and makes good power. It does not burn oil or coolent. The exhaust also does not smoke.


Here some pics of my setup cuz everyone loves pics.

 

The reason the car is overheating in because of the lack of air on the freeway since now you are blocking it with the front mount intercooler, there is not as much air as before......so you need the same mod that i did, because i had the same exact problem and here is the solution....







An Air Dam, I bought this one from a C5 Corvette, its only 60 bucks, i've had it for about 3 month already holding strong

With this you will never have overheating problems even on 115 degree weather, which i was getting those temps out where i live

 

That shit must scrape like crasy

 

Yes, sir....hahaha

You get use to it and its meant for that, its very flexible and it won't crack

 

put in a bottle or 2 of water wetter... see if that helps... if it doesnt... put that ugly air dam thingy on ..... haha

gl

-Lee

 

I have a bottle of water wetter in there and Im running about a 70/30 mix of water to coolant. Any other options out there other than an air dam? if not i guess ill give that a shot.

 

Removing the intercooler will make the issue go away

 

what's the difference between your brother's setup and yours? BTW I'm in Socal too.

I think it's the radiator/fan. I have a friend that didn't have a good experience with the mishi combo. I had similar problems when I was running the Visteon radiator that came with ONE fan, no shroud.

I now have the Koyo/integra (FAL 220 or 225) fans with a great shroud and I don't have any problems (unless AC is on) at any temperature running up to 14psi.

Are you losing coolant? Possible head gasket leak?

 

Interesting!
What setup are you running? What were you heat problems before?

 

I have a Forged Performance Manifold with a 6262 and a precision intercooler, the kit was installed around February of this year, the out side temps where around 75 to 80 degrees, and my car temps where normal around 180 to 190 or so, then when it started to get warmer around 90 to 100, thats when i started to see the temps go up from 180 to 205, and it wasn't peak summer yet, when peak summer arrived i could only use the car to go to the grocery store and back cause it will start to overheat, temp all the way up to 219, with no AC on either, now since I added the Air Dam, outside temp where around 115, my cars stays around 201-205 with AC on and no problems since then.

The problem is the intercooler blocking the air, so i redirect air from the bottom up now, problem solved!!!