Fluidyne radiator question

[XfireZ51]

My purpose is just to report my observations since I just did an install of the Fluidyne. Not here advocating that people should install one. As I continue to drive in varying conditions, I will be checking performance in a number of conditions and make my results public here. Today's ambient temps will be low
90's so I'll be checking performance out in those temps. I don't like being surprised, but rather want to know what the limits are.

[GOLDCYLON]

I am running a Dewitts with dual spal fans. so far in Arizona I am happy with it.

My toughts on the project.

http://www.zr1.net/forum/showthread....hlight=dewitts

[GOLDCYLON]

Originally Posted by Dynomite

OK......what does that mean exactly?

Tell us what your Coolant Temperatures are on a 100 deg F day while stop and go driving for 30 minutes.....Say traffic between stop lights and no speeds over say 25 mph and lets say AC On.....with AC Fan on #10.

About 130. On the freeway with ac on doing 70 Miles per hr about half band whatever temp that is.

keep in mind I drive in AZ Stop and go temps outside radiating from the roads and freeway are easliy 115 and up last summer in this conditions outside temp was 122.

[GOLDCYLON]

Originally Posted by Dynomite

Say......... Dual Spal Fans I am assuming those Dual Spal fans are pulling a lot more air through the radiator and even at stop light your radiator thinks you are moving at 50 mph.

You just introduced another variable of pavement temperature. Which most experience the pavement just like you

None of us experience Spal Fans like you

Yes about 130 more FPM per fan than stock. The car hums like the newer car fans.

Just like the lady says at time mark .11

http://www.youtube.com/watch?v=xCIF6JF1O5U

[XfireZ51]

Here's latest observations driving with A/C ON, ambient temps are 90-94F.
Driving in Stop and Go for about 15 min. CTS got up to 108C/227F sitting at a light. Intake Air Temp got up to 36C/96F. Once I got rolling temps began dropping and at a steady 60-65mph cruise temps stabilized at about 87C or 188F.
Driving around in our suburban town, CTS ranged between 88-94C.
With a modded motor, you are putting in a lot more heat to get more power out. We know the A/C comp on these cars was already marginal from the factory.
Perhaps as Darryl has pointed out, more powerful fans may be the answer. Not sure the Fluidyne by itself is enough for Stop and Go, idling with loads of other traffic all around you. Without A/C, I think the Fluidyne does a good job at keeping temps reasonable. My $.02.

[secondchance]

Great discussion guys. Even with OEM radiator and 180 stat w/1/8" hole drilled on the flange, I have no issue at 55 mph plus speed. As is car maintains 192 - 200 degrees F. It's stop and go traffic in 90 plus days, w/ AC on, the coolant temp climbs to 230+.
Based on discussion above high efficiency radiator removes heat from the motor but the radiator needs good air flow (good fans) to shed heat. Makes perfect sense.
Since going to 380, I can tell the cooling system is not up to par. So, I think, a good radiator (I'm thinking Dewitt since I know they are two row and I can't confirm the same for the Fluidyne) topped off with a pair of Spal fans are in order.

Thanks all!

[XfireZ51]

My only concern regarding AC load is when Mrs. Xfire is in the car. She won't ride around in it unless there's air. For me, I use the windows and listen to the exhaust note.

[tf95ZR1]

Originally Posted by secondchance

That's why I am looking at either Fluidyne or Dewitt. Both will fit under the stock shroud w/o modification.

SC, you just built a 380 and don't want to trim a little plastic?
I placed a Ron Davis 3 row. I can look it up, but I think I had
to trim 3/4" here, 1/2" there. No big deal. Runs MUCH cooler.

[PhillipsLT5]

I do not think fluidyne makes these anymore, so maybe not a option, unless used

[secondchance]

Originally Posted by PhillipsLT5

I do not think fluidyne makes these anymore, so maybe not a option, unless used

I see Fluidyne FHP11-96cor for sale when googled. Also, on Ebay.