Electric fan on intercooler ?

[Dirk]

Originally Posted by choctaw

I don't understand, a fan will push just as much as it will pull

fans will pull more than they will push. A fan in front of anything will act as a wall blocking flow at higher speeds. At lower speeds, static pressure has less effect on the fan while pulling air through the rad/cond/ic.

[f250power]

Originally Posted by bigcountrysg

Depends on how you mount it to the intercooler. If you mount it in front of the intercooler pulling more air in from the grill area and pushing it towards the radiator. Then it might do some good. Especially if a trans cooler is behind it as well.

i was thinking to put it in front as a pusher.

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Last edited by f250power : 06-28-2008 at 07:02 PM. Reason: mis spelled

[f250power]

Originally Posted by Dirk

Fan for the IC = worthless

Fan for the AC condensor = awesome

I removed my stock fan a long time ago. I have a fan for the AC for low speeds. Any speed above 30-40mph, the truck is pushing a ton of air past the IC.

Granted this is an opinion. There are many of us that don't run a stock fan on here. If you are one of those who for some reason can't run without the stock fan, I don't care and I don't want to hear about how your truck over heats. Every truck is different.

so you run with no fan at all ?

[Dirk]

Originally Posted by f250power

so you run with no fan at all ?

Most of the time, no. I only run a fan if the a/c compressor is on.

[choctaw]

Originally Posted by Dirk

Most of the time, no. I only run a fan if the a/c compressor is on.

I did not know that, would you be kind enough to expand on your reason and the feasibility of me doing that as well?

[Dirk]

Originally Posted by choctaw

I did not know that, would you be kind enough to expand on your reason and the feasibility of me doing that as well?

I wouldn't recommend it to a 6.0 owner.

Reasons?

6.0 isn't as tough as a 7.3.
If you take care of your 7.3, she shouldn't EVER overheat.
I've never seen too many 6.0 electric fan clutches having issues cooling, but I've heard grumblings about low speed/idle cooling.

I would only recommend for a 6.0 what I stated earlier. Heater bypass and if that doesn't help enough, add a fan.

Testing?

On the dyno, there was 10hp loss between a new and old stock style fan and clutch. Without a fan, I picked up almost 20hp.

Temps without a fan?

Max was sitting for 14 minutes in traffic. I hit 230*. Stock gauge hardly hit mid way. Aftermarket gauge stated 230*.

Have I pulled without a fan?

Yes. Dual axle car hauler with a f150 on it. No issues.

If you are pulling 15-20k with your truck, I wouldn't recommend it. And regardless if you keep the stock fan, remove it, or add secondary fan, always test and monitor your truck.

[choctaw]

Thanks, I'll go with your suggestion. It really irritates me when it doesn't cool that well especially after a hard day in the sun.

[f250power]

Originally Posted by Dirk

I wouldn't recommend it to a 6.0 owner.

Reasons?

6.0 isn't as tough as a 7.3.
If you take care of your 7.3, she shouldn't EVER overheat.
I've never seen too many 6.0 electric fan clutches having issues cooling, but I've heard grumblings about low speed/idle cooling.

I would only recommend for a 6.0 what I stated earlier. Heater bypass and if that doesn't help enough, add a fan.

Testing?

On the dyno, there was 10hp loss between a new and old stock style fan and clutch. Without a fan, I picked up almost 20hp.

Temps without a fan?

Max was sitting for 14 minutes in traffic. I hit 230*. Stock gauge hardly hit mid way. Aftermarket gauge stated 230*.

Have I pulled without a fan?

Yes. Dual axle car hauler with a f150 on it. No issues.

If you are pulling 15-20k with your truck, I wouldn't recommend it. And regardless if you keep the stock fan, remove it, or add secondary fan, always test and monitor your truck.

How hot is it where you live, I'm in Miami and have never heard of a car without a fan.

[Dirk]

90-100's in Dallas/Fort Worth. The little bit the fan on the condenser pulls and pushes past the radiator does great. I've moved to a custom built fan setup that I made out of a ford taurus dual fan setup. I even wired up the fans to use the dual speed motors if needed.

One VERY important thing I left out. When wiring up a fan, DO NOT DIRECT WIRE ANYTHING. USE A RELAY!!! 30amp Bosch style relays are cheap. DO NOT SKIP THIS!!

[f250power]

How many cfm does it take ?