Upgrading cooling capacity on H/E

buexdreux

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I have a 2.3L TVS blower pushing 22 lbs making 690rwhp/644tq on 93 on my 04. I'm currently running an AFCO dual pass H/E with the dual 8" fans and I'm still not getting enough cooling power to keep the IATs down while I autocross/road course my car. My plan is to add a VMP triple pass H/E with dual 11" fans (in the trunk) to the H/E to add more cooling power and capacity (two more gallons of coolant plus the capacity in the lines). My question is what type of pump should I run and should I keep the current stock pump in the system? Here's a link to the triple pass H/E if you've never seen one before.

http://www.vmpperformance.com/VMP-Dual-Fan-Triple-Pass-Heat-Exchanger-for-Mustan-p/vmp-hedual.htm
 

ITSTOCK

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22 lbs making 690rwhp/644tq on 93

Wow. I'd put a bigger upper pulley on it, win all the way around. See what your IAT's are after doing this.
 

me32

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For autocross/road course your boost is just making too much heat. As stated above try using a bigger pullie and dropping boost to about 17lb. Also try getting more airflow to the Heat exchanger. I dont have any experience with the VMP tripple pass HE but it may help some. Ypu may need a higher flowing pump with that HE.
 

buexdreux

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I do have the 3.2 pulley bringing the boost to 15-17 lbs and I have a bench tune for it; need to get it dyno tuned for max power. I planned on going that route for track use then thought about adding more cooling capacity. When I take it to the track I’ll take the larger pulley just in case the extra HE doesn’t keep the temps down so I don’t burn up my S/C.


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me32

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I do have the 3.2 pulley bringing the boost to 15-17 lbs and I have a bench tune for it; need to get it dyno tuned for max power. I planned on going that route for track use then thought about adding more cooling capacity. When I take it to the track I’ll take the larger pulley just in case the extra HE doesn’t keep the temps down so I don’t burn up my S/C.


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Comp04svt

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The heat exchanger in your link is for a GT500. It seems like fabbing the GT500 heat exchanger to the terminators is becoming more popular, however you would need to pick up a tubular crash bar and fab/weld some brackets to mount it. From what I've seen it fits behind the bumper with no other modifications.

Take a look at J2 fabrication. He sells a trunk tank setup along with pumps and also offers a modified intercooler inlet/outlet for better flow.
 
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buexdreux

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The heat exchanger in your link is for a GT500. It seems like fabbing the GT500 heat exchanger to the terminators is becoming more popular, however you would need to pick up a tubular crash bar and fab/weld some brackets to mount it. From what I've seen it fits behind the bumper with no other modifications.

Take a look at J2 fabrication. He sells a trunk tank setup along with pumps and also offers a modified intercooler inlet/outlet for better flow.

Can you point me in the right direction to see this behind the bumper mod? I was planning on adding this H/E to the system already in place but if I could just replace the H/E I have now that’d be even better!


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Comp04svt

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c6zhombre

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Damn, 22psi on 93? I wouldn't run around the block like that much less a road course. Thats a recipe for boom. Pulley way down or make the switch to E85
 

racebronco2

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In my setup when i was open tracking was a VW radiator as a second heat exchanger. It barely fits betwen the headlight so the header panel will need to be trimmed. I plummed it in series with the stock heat exchanger. If you use a bigger heat exchanger instead of the stock unit your engine temps will be too high.
 

racebronco2

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I also had one of my Real Heat Extractor hood while open tracking. Whipple was 17psi and in 107 Degree weather my engine temps were 220 and ait2's were 140 degrees. Speeds were from 45 to 128 mph. Usually on 80 degree days my temps were closer to 190 degrees with the ait2's around 120 degrees.
 

Dave.O

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In my setup when i was open tracking was a VW radiator as a second heat exchanger. It barely fits betwen the headlight so the header panel will need to be trimmed. I plummed it in series with the stock heat exchanger. If you use a bigger heat exchanger instead of the stock unit your engine temps will be too high.

Please elaborate on why engine temps would be too high if using only a large h/e?
This is actually what I'm looking at doing


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racebronco2

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Please elaborate on why engine temps would be too high if using only a large h/e?
This is actually what I'm looking at doing
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In my testing when using the vw radiator and the lfp heat exchanger it takes too much heat out of the system. Engine temps rise because of two reasons, less airflow and the air the radiator is getting is preheated not allowing the radiator to shed as much heat as before. Engine temps were 230 degrees in 100+ temps, went to the stock heat exchanger with the vw radiator and temps dropped to 220 degree. These of course are extreme temps and running open track for 20 minutes, in cooler temps both systems runs cooler of course.
 

GodStang

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Correct me if I am wrong but for the first 10 yrs of these cars people proved time and time again that fans on the heat exchanger only helped when sitting still and became an air movement restriction once moving.

Then a big named vendor started selling fans on the HE and everyone was on board. Did someone find a fan that was not a hindrance or because a vendor sells it then it is golden?
 

MalcolmV8

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Correct me if I am wrong but for the first 10 yrs of these cars people proved time and time again that fans on the heat exchanger only helped when sitting still and became an air movement restriction once moving.

That has not been my experience at all. Not on heat exchangers, transmission coolers or even engine radiators. I'm not sure where this notion of the fan becomes a restriction comes from?

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SlowSVT

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Malcolm I would say you almost need fans your HE is so large in respect to the opening feeding that monster plus those fans are big and will move a high volume of air. I wouldn't put fans behind a stock or even my Gords. At a minimum they see gale force winds, at maximum: CAT 5

Impressive set-up that would make an air-to-air system blush. What are your IAT2's at boost and at what ambient?
 

GodStang

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whitedevil95

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I am one that also never understood the idea of fans being a bad thing. Literally every car has a fan and shroud on their radiator with no issues at highway speeds. I used to have a dual fan AFCO before I had my Killer Chiller set up and thought it worked just fine, especially in the staging lanes at the track.
 

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