Man,,, this one had been pounded for so many years..... LOTS to ready there,,,, so just skimming through,,,
The 1st thing that caught my eyes was someones comment about using the Mustang V8 radiator and that it was the same for ours,,,,, ITS NOT,,,,posted this one many, many times. Also posting that I have a new one here complete with a puller fan and adjustable thermostat and shroud and all,, its new and still sitting on it. Its SHORTER IN HEIGHT and so my suggestion as always is that the doghouse is a small oven box and it NEEDS air movement.
The whole basic principle is (even more so on bigger motors like a 240/300 or the famous V8 issues),, the bigger the motor the more the heat. AND as always people don't want to hear the motor as well as the heat coming out of it into the cab. The usual also, padding or a pillow to for someone to sit on the doghouse with,,,
Insulating is a nice thing to do but the point is that its a great big piece of cast iron that holds heat very nicely.. The only way for the heat in ours to escape is with air movement,,, simple as that.
So,, the Mustang radiator may work very nicely in a big engine compartment and a hood for the heat to move out of,,,,,,, but NOT in ours....
Recently had a customer listen to me and use a 240 radiator for his 200. Its not only taller than the Mustang its also taller than the larger Econoline small six radiator. My point is that you need as much surface area as you can,, and also need for the air to move through the doghouse. The heat from the motor is going right back into an oven,
With that,, I suggest using an electric PULLER fan. Get rid of the mechanical gas mileage guzzler at the same time. Being that its electric at least it can be setup to run after you shut the motor off and move some air while your parked having lunch.
IMO,, on any of ours the idea is surface exchange of heat and the larger the surface area the better. On the other hand too much air restriction because of too many rows and fins also isn't good. If it slows the fan down and not blowing its not moving as much air either.
I also have a 351W conversion that has the Champion 4 row custom V8 radiator with their shroud and puller fan,,,, The air movement is a joke, and so have a new 4 row brass going in using the Taurus fan. Been yacking about it forever. Said to put out 4400 CFM, shallow motor for clearance, puller only, not reversible and about $16 dollars at half price sale. BTW,,, It comes with a shroud and fits the 240 perfectly.
NEXT PROBLEM,,,,, Automatic transmission,,,, IT ADDS HEAT to our already compromised doghouse heating,, its just adding more heat to the radiator load.
The reason why I came up with and have been using a remotely located FAN OPERATED transmissioin cooler. It blows downward to the ground and continues working while you are in 1st gear cooking eggs on the top of your truck in stop and go traffic. It actually adds to your radiator cooling effort as it can help remove any extra heat from the engine as its just another fan operated radiator removing heat and dumping it away from the engine. The static types don't do much of anything with NO AIR MOVEMENT..... adds a little but not when the truck is not moving. Same idea as the belly pan,, its doing nothing when the truck is not moving..
SO,, I set mine up to use a 3G alternator (yes I know I keep plugging it),,,,, Here is the heat scenario I attack and this way anything less is easy.
Pretend its so hot out that you cant even touch the top of your truck, you are in Drive and stuck on the freeway when its 110 outside. You sit there with the heater in the truck on to add another fan cooled radiator to the truck, you have to keep the idle up because the alternator can only keep the fans running at full speed if you keep the idle up for the alternator.... Now you have more heat from the added rpm's,,, the torque converter is sitting there slipping and adding heat to the present situation and you start to get scared as the temp gauge pegs.....
Then think of it this way,, why am I increasing the RPM so that the alternator can keep the fans running at full speed (IE: CFM......... air movement),,,
With that IMO,,, use the largest surface area radiator that you can, use a high CFM PULLER FAN,,,, use the remote FAN COOLED transmission cooler and MOST IMPORANTLY,, USE AN ALTERNATOR that can put out enough juice at idle for everything to also run at its MAXIMUM AIR MOVEMENT....
So,,, my combo is to use the 240 size radiator, use the Taurus high speed (two speed) puller fan and shroud and use the 3G alternator as it puts out 90AMPS at 600 RPM...
I recently talked to the people who make radiators and a major rep for Champion and the to make this even better the way to go would be a 4 row aluminum 240 sized radiator and the combo I use above.
In regards to the trans cooler,,, been using them for over 15 years at the least and THEY WORK.
I add a canister filter at the same time.
ALSO,, here is another idea that I started using recently. WHY NOT ADD MORE external cooling by using an oil cooler also?? Here is an oil filter adapter that I just had a customer set up on his 240 and its working great. He hasn't added the fan to it yet but all the same principle.
SURE I have forgotten a lot of other points,, but this one also,,, I always use relays and always wired hot all the time. This way so that it can continue to move some air through the doghouse AFTER I shut the motor off. Even if there isn't any fluid moving it will still cool things down as there is some air movement. If not the only way for heat to go away is by radianting it through the metal of the doghouse and what ever else that finally goes away. In a car or truck it can go up and away from the motor as it normally rises and goes through the hood, fenders and the like. How many cars to you now hear with the fan running with no one in the car and the motor shut off?? In mine I have all of the fans running after shut down and never have yet run a battery down because of them....
Also, posted the pictures of the 18" Volvo fan and two speed relay setup that's nice also. When I hooked it up I thought it could almost fly on its own power. Just one more option I am playing with,,
Vic