underpsi68

The one I'm thinking of was a 41 Velocity with 600ci bbf with psi blowers.

underpsi68

single pass radiator

14 apache

underpsi68

Here is the thread on his build. Not sure if he ever finished it. It is a good read, long read. 41 Upgrades

compedgemarine

let me preface this and say that I am not a ford guy (even though I have a 65 mustang, among other cars). but a problem is a problem and overheating is overheating no matter the brand. when you say it runs to the hot side is this in traffic, idling, or running hard? if any thing other than running hard it does not matter if it is 150 hp or 2000 hp because in traffic it is not making much power no matter what it is capable of. you have a fan that moves a ton of air so we can discount air flow unless there is some blockage. you have the biggest radiator you can fit (what is the car? looks like a fox body or whatever they call the next gen) either way you are out of real estate so the only other thing is flow rate of the pump. is it under driven? if so you may not be moving enough coolant at lower speeds. what are you running for coolant? with the air flow of that fan there is no reason to not find a way to keep it cool. I have that same fan on my test stand and the engine drops 50 rpm from the alternator load when it turns on. would love to find a fan that moves that much air but doesnt take 50 hp to power it.

compedgemarine

here is a good read, it deals with an LS based motor but the principles are the same.
Pirate4x4.Com - The largest off roading and 4x4 website in the world.

14 apache

compedgemarine

that is a joke, but if you ever heard one start you would know what i mean. they pull almost 100 amps on start up.

underpsi68

When I say it runs hot is when the outside air temps are 85-90*+. It runs hot for where I would like it to run but the temps are still in the safe zone. It is usually fine when car is moving. Idle is the killer, Black car in the sun. The radiator is blocked with a very large 4" intercooler and 2 transmission coolers, oh and a small p/s cooler. One of the problems is the front opening in the car is very small, Fox body Mustang. The fan works great but there is quite a bit of restriction on air flow. All the heat under the hood doesn't have anywhere to go. I opened up the lower valance of the car. It flows a ton more air than the factory setup. I also have a heat sink oil cooler mounted to where the front inner bumper used to be. It isn't blocking airflow but i'm sure it does give a little heat off.

I'm running an electric water pump than flows more at low rpm's than the factory pump, 55gpm at idle. I tried just about every pump/pulley combination and have the car dialed in the best as of now. Also added Redline water wetter, tried different coolant/water percentages etc.It is what it is.

compedgemarine

that's the problem with a car that was engineered around a 250hp engine. you run out of room quick when you add stuff. probably no room in the front but maybe add a pusher fan to the help airflow at low speeds? I build a lot of hot rods (mostly street driven with moderate power) so I understand trying to fit bigger radiators, etc into a spot made for a radiator that cooled a 100 hp six cyl. it sounds like it stays around or under 200 so it is not running away with heat. most new cars run 210 to 220 and dont melt down so may not be worth worrying too much about.