Great DIY dude...

Okay here is a shot from the max temps I saw in the longest log I took. I was driving in a hilly section trying to get the temps up.

http://www.flickr.com/photos/9krpmrx8/5782317613/

Thanks dude! Now for some logs post install.

Dude whats up with your afr's?? That looks extremely rich for an NA, also your air intake temp seems super high...

In any event do you see any differences in the temp?

203 the whole time? interesting.

it was 93 degress 2 days ago, I was cruising down in Jersey highway (was it 17 or 3? I forgot)

the speed was about 70-80 the whole time for maybe 15 minutes or so. the Coolant temp (my gauge) shows 83 Celsius almost the whole time.

on the 2nd graph, and why is ur AFR like 11.xx for so long? my AFR is about 14-15 almost all the time.

My intakes temps have been unusually high so I did remove my "cold air intake duct" and went back to the stock setup. I am getting a new MAF just to start with a fresh one before the turbo. My AFR's look okay in all the other logs, not sure why I was seeing low 11's there but better rich there then lean.

I only drove the car down the street to the car wash and never really exceeded 4,000RPM on Sunday. On the drive to work this morning I didn't log but the Good Box was reading about 185F all the way to work and I did bang through the gears to redline up to 90MPH on the access road and my max temp was 194F a few seconds after I let off and slowed to pull into the office. Ambient temps were in the high 90's according to the stock AMB temp gauge.

hahaha, your "cold air intake duct" clearly fails !!!! :crazy:

well, get some more logs ~ so we can see how your fan/rad goes.

Dude, you are in America, why do you force me to calculate C to F ? :lol:

I have compared the temps to hoss-05's car and grungepups and in late afternoon 99Fish weather with some high loads, 200F coolant temps are pretty normal.

good so far--right?
what temps are you activating the fans?
OD

Great thread, beautiful pics!

Actually, my foam insulation blew off which is surprising because the adhesive is pretty sticky. So Saturday I will find a permanent solution. My fans are being turned on at 185F IIRC. I am open to any ideas on what to use.

Thanks man.

The fans are much quieter but I don't think they push as much air as the OEM ones. I haven't actually logged yet because I had to redo my EPS wiring last night. I guess I didn't secure one of the plugs all the way because when I pressed it it clicked and then the steering was fine after.

I do constantly look at my Good Box and the temps seem to be about the same if not a couple of degrees higher but I attribute that to the area around the radiator not being sealed. Most of the foam insulation was gone.

Do our fans push or suck ?

If they are on the inside of the radiator they are puller fans :)....or suck I guess :)

Yes, they pull air in from the front, you can feel the air being pulled in if they are on and you put your hand in front.

Weird thing is that my stock fans seemed to stay on longer after the car was shut down when hot. These only stay on a couple of seconds and then shut off.

It was a rhetorical question, but thank you Dan.

Gotta get you working on a few smileys or something...otherwise it is difficult to tell ;) LOL Seemed like a dumb question :)

that's your problem :rofl: I know the formula in my head so I can convert the temp back and forth pretty quickly.

I think the Mizu fan is somewhat slower than the stock fan. I think the stock fan pull 1700 cfm of air ~ correct me if wrong.

Which tells us absolutely nothing.

How would a proper (or near as one could get on the street) data log be conducted?

Yeah, until I do the same drive again and log. It the max temps reached are are lower then I would suggest the raditor is an improvement. If the temps are the same or higher then well there was no improvement/benefit in installing this combo. I realize this is very unscientific.

It's not so much a case of being scientific because you would need data from your stock radiator to really have a balanced look.

Again, what needs to be looked at is the amount of time it takes to cool down the car to operational temperature with a given ambient temp.

With summer coming up it would be a good opportunity to test this because you'll have a higher ambient temp. This means you'll be able to push the car into higher temps quicker and get a better sense of how much cooling capability the radiator has.

For example:

Find a stretch of road you will experience a good amount of load (hills or what not) and get the temperature up there. I'd say 220 is a good spot because beyond that the heat system becomes saturated and you start getting into the danger zone. Once you have reached your target temp start your logging. Return to normal driving/cruising. See how long it takes for temps to fall under 210 degrees.

Someone who has a stock radiator that can perform the test in similar ambient temps can provide the amount of time necessary to get temps under control. The smaller the amount of time the better the radiator.

^^^What he said^^^ Great thread BTW!

Okay,

I went ahead and pulled the bumper and tray today. The foam I used to seal around the radiator had blown out, the tape backing had come apart and the foam blew out under the radiator and on the drivers side. There were also some other gaps between the under tray and where the wheel shrouds meet the under ray. So I ran to Lowe's and found some that was much larger and fit in there really snug along the sides and top and I shored up all the other potential air leaks. For the bottom I made a panel the basically filled the gap between the tray and radiator. The air really wants to escape under the radiator, that foam was gone completely.

Anyway, I took her out for a ride and drove hard, held a lower gear on purpose, embarrassed some young dude in a brand new C class, etc. My max temps were 208F. This wasn't really comparable to a track day or canyon run in 100F+ weather but it's good. Tomorrow I will do what Flashwing suggested and compare it with Hoss-05's car. But this is good news, I was worried this radiator was another Koyo. The jury is still out but with it all sealed up it is definitely performing better.

Pretty hot here in South Texas :lol:

I was up at my bosses place out in the hill country and went the back way back to the office from lunch yesterday and beat on my car for while. Hills, tight sections, straights, etc.

These were the max temps.

http://www.flickr.com/photos/9krpmrx8/5806260926/

It took a seven mile drive back to the office at 70MPH for the temps to drop down to 190-194F where it usually sits in this weather.

thanks for the DIY