My biggest fan...

[etlsport]

sweet.. i want to do this.... did you have to change to a new serp belt? what size?

[ZEUS]

sweet.. i want to do this.... did you have to change to a new serp belt? what size?

Nah, there is no belt change. All you are doing is unbolting the mech fan from the pulley and putting the nuts back on to secure the pulley to the water pump.

[orion]

Yep, i didn't even take the belt off, just used some washers to make up the fans gap. also the wiring kit i got has the switch that comes on at 185 and off at 170. Ive found that's too low temp, the fan was running all the time once the engine came up to temp. so i got a 200 on 185 off switch and now it's much better. the kits are the same price for ether temp.

[tom4bren]

I was thinking about this on my way in to work this morning (Hey, it's 45 miles on I95 in some pretty heavy traffic so I had time to think).

I'm don't mean to pee on your charcoal but I just can't imagine it making as much of a difference as y'all make it out to be.

Assume that the electric fan motor is 1/4 HP (reasonable) and that it is twice as efficient as the mechanical (I'm being generous here). The engine is 215 HP. That works out to about 0.1% more horsepower being available to send down to the wheels. Am I missing something here?

All that said, there are some benefits and the mod is worth doing. I'll probably do it too - someday - but we've already established my procrastination status.

Gentlemen, do the swap and enjoy your 0.1% increase in throttle response. LOL.

[etlsport]

true... i want to do it simply because my fan clutch is bad.... and its gonna be like 100 to replace it anyway.. so i might as well go elec and not have to worry about it again

[ZEUS]

I was thinking about this on my way in to work this morning (Hey, it's 45 miles on I95 in some pretty heavy traffic so I had time to think).

I'm don't mean to pee on your charcoal but I just can't imagine it making as much of a difference as y'all make it out to be.

Assume that the electric fan motor is 1/4 HP (reasonable) and that it is twice as efficient as the mechanical (I'm being generous here). The engine is 215 HP. That works out to about 0.1% more horsepower being available to send down to the wheels. Am I missing something here?

All that said, there are some benefits and the mod is worth doing. I'll probably do it too - someday - but we've already established my procrastination status.

Gentlemen, do the swap and enjoy your 0.1% increase in throttle response. LOL.

You are not peeing on my charcoal! I see the potential for increased performance; if you don't, that is your own fire you are putting out. I am about to fit bigger, heavier tires. The tires about 1% bigger and are going to rob some performance. Judging by calculations I have seen over time, your calculations are off. I have read mechanical fans can rob as much as 5 hp. Electric fans may use as much as 2 hp - but they are hardly ever on, so at most times no hp is lost. I have grown accustomed to being overgeared with my 4.77's and would like to offset the torque lost by adding these new tires as much as possible. An electric fan is cheap and easy.

[tom4bren]

All Mighty Zeus - I stand corrected. Don't drop a lightning bolt down my shorts.

I'm curious about what I might have left out of my logic but I'll let it go. No doubt it's an cheap/easy mod so well worth the effort. Like I said ... someday.

Excuse me while I go piss on my charcoal.

[ZEUS]

:rollg2: Hey you asked if you were "missing something here" so read instead of type or I will put two bolts down your shorts!

[circmand]

You are not peeing on my charcoal! I see the potential for increased performance; if you don't, that is your own fire you are putting out. I am about to fit bigger, heavier tires. The tires about 1% bigger and are going to rob some performance. Judging by calculations I have seen over time, your calculations are off. I have read mechanical fans can rob as much as 5 hp. Electric fans may use as much as 2 hp - but they are hardly ever on, so at most times no hp is lost. I have grown accustomed to being overgeared with my 4.77's and would like to offset the torque lost by adding these new tires as much as possible. An electric fan is cheap and easy.

I have an old english roadster. In the AZ heat it is always overheating. So after a 3 core radiator, OEM oil cooler still not working I added an electric fan. It does quite a job keeping things cool but it needs to run all the time. After 3 minutes it need sto be on, sitting in traffic needs to be on, in slow traffic on, in fas moving traffic on (tunnel effect) It great that I do not lose the power so I see a positive but after getting to temp it needs to go on all the time