Ok, heres the deal...... Since i installed my J's Racing kit my cars been heating up. Before the J's bumper my water temp would ping pong between 170 - 190f. As soon as it hit 190 the mugen therm. would bring it back to 170, and so on. And if it went over 190f, all i had to do was turn on my a/c and it would immediately drop under 190. Now im running between 190 - 210ish. My oil temp sometimes goes upto 111c ( sorry my oil temp is in c ). Before my oil temp would hardly ever hit 100c.

If you havent seen a real J's Racing bumper its two separate pieces ( see pics below ). The bumper has something like a front defuser that connects to the bottom and completes the bumper. Well, the front defuser piece goes really far back and completely covers the radiator and my oil cooler. I took my car to my mechanic and we decided to drill 5 - 3inch holes in the under defuser to help bring in some air from underneath. That didnt really help any. So i went to Home Depot and found a small aluminum a/c went ( see pics below ) and used double sided tap to and taped the vent over the holes to help divert the air back up into the rad/oil cooler area. It has helped, but not as much as id hoped. My water temp is now hovering around 188 - 200ish. Its not back to where it was pre J's bumper so im a little worried about over heating. Am i overreacting? Are my temps really not that bad now. Or should i look to do something more?? I havent changed the radiator yet. Lets just say i bought one, but got screwed over...Anyway, let me move on before i go off about the radiator. Would going with a Koyo or some other aftermarket radiator help?? Can you guys give me some suggestions?

Thanks for your help!!

 

Well I guess your bumper isn't directing as much flow through the radiator and etc as it should be. The bottom piece would actually probably help out with cooling since almost all of the air flow at speed would be coming from the front.

An upgraded radiator would help as well as fans. You already have the other cooling mods. The temps aren't really high to be worried about it but it is a big jump and lets say the outside temps get hotter...that wouldn't be good.

 

Sorry, in my rabble i forgot to mention the front also seems to restrict air flow....The problem is. I live in South Florida, and this is just the begining of summer. Its only going to get hotter...ugh So, im a little worried about that. Is there a combo you would recommend? thxs!

 

This may seem like a stupid question, but has it gotten hotter out since you installed that bumper? I know in NY it has gotten much more hot/humid in the last few weeks.

 

I personally run the koyo and even with NY humidty during the summer time there were no problems.

For fans, I actually run one from autozone and a few other people do as well. They have the same specifications as the FAL fans and cheaper + lifetime warrenty. The great thing about autozone is that they also save warrenty information if you tell them to so you don't need a recipt.

Let me know if you want a Koyo radiator. I can order one for you.

 

This doesn't sound so bad, really. Before, I think you may have been running too cool. I typically run as high as 98*C (about 210 for you) on these hotter days and I've seen 220 to 230 when driving in REALLY hot weather.
The S2000 normally has a very efficient cooling system, but most other cars, 220 is not unusual. Just make sure your rad cap is holding pressure.

ps. I also have the Spearco front mount, so all the air comes through that before going through the stock radiator. However, I doubt the air gets that hot after it goes through the Spearco. And the A/C ON is a neat trick, isn't it?

 

Thxs guys for your quick responses!!


Thxs bro! We will talk more later.

We've been getting more rain lately. So id say the temps have dropped some, but the humidity has gone thru the roof. Thats South Florida in the summer...ugh

Wow! 220 - 230..? My tunner set my engine kill at 220f. Thats why iv been so worried. But that was before i had my water temp gauge installed. Was that just being overly cautious because i didnt have a gauge? Should i talk to him about increasing that?
Luv the a/c on trick...

 

[QUOTE]And the A/C ON is a neat trick, isn't it?

 

 

When you turn on the A/C both cooling fans run- that's why the temp drops.

The stock fan switch doesn't close to 199deg F. It wasn't running hot enough to worry.