I have been experiencing issues with my cooling system for a number of weeks now. See my original thread:
https://www.s2ki.com/forums/index.php?showt...post&p=10956381

The temp. gauge in my car would climb to 4 bars on a hot day, while using the AC.
During hard driving/racing, the temp. gauge was seen to rise as high as 5 bars!
This would also cause a noticable "lag" in power and acceleration.

Following the official Honda S2000 shop manual, Xviper's DYI, and some of Billman's suggestions, I went ahead an flushed the cooling system myself a few weeks ago. (mind you, I was a 5-ton and Humvee mechanic in the marines)

The result: this past Saturday I noticed my temp. gauge climb to 4 bars again, while driving on the GS Parkway, without the AC on! Sure, it was about 95 degrees outside, but i wasn't even pushing the car hard!


After going home and checking over the entire car... a thought crossed my mind.
"Is the fact that I am covering more than half of the front air inlet with my license plate possibly causing this issue?"
Less than 5 minutes later my plate was removed, and I was driving to test my theory. Almost immediately I noticed that the "lag" feeling disapeared. I also ran the car hard... much harder than before, for at least 45 minutes. I took a bunch of on/off ramps really fast, keeping the rpms pinned between 8 and 9k. Nothing.

The temp. issue seemed to have been caused by the reduction in intake air through the front vent.

LESSON: No matter how ugly that license plate is, either keep it mounted in the stock location, or do what I plan on doing. Mount it to the bottom of the front bumper with special brackets. DO NOT cover your front vent.

I'll keep this thread updated wit hany new news.
Thanks!

 

man am i glad i live in san francisco, only once in a blue moon will the temps go over 75 degrees

 

I seriously doubt your cooling issues have anything to do with your license plate placement.

Think about it, if you license plate was always there... and you change your coolant... now you have cooling issues... most likely your problem will be due to you coolant change.

You most likely need to purge your cooling system of air and you can do so by opening the rad. cap when cold, start up the car, and slowly and slightly squeeze the radiator hoses. Even if you dont fully purge the system of air, it'll eventually purge itself.

 

burp the air bubbles!!!

 

I have a huge intercooler in front of mine, I doubt its your plate

 

Wrong. Flushing the coolant helped... but removing the plate SOLVED the problem.

 

I've purged the air twice from the system. The first time during the flush, and then a second time, following the exact steps outlined in the Honda S2000 Shop manual.

During the second purge, there was a noticable amount of air purged.

The flush was completed 4 weeks ago.
The second purge was done 2 weeks ago.
The plate was removed last saturday.

 

Uhhh....correct me if I'm wrong... doesn't an intercooler have fins, which allow the air to pass through it... and onto the radiator??

Don't you think that any car with the radiator completely blocked would have heat issues?

 

relax buddy... so what your saying is you put the license plate on after your coolant flush?

And if you've ever owned a turbo vehicle you would know that the intercooler gets very hot.

 

The license in your picture isn't a great place to put a plate.

Get the rick's license plate holder, it slants it back to get more aero.