Fan clutch upgrade...

ifrythings · Jun 1, 2019

The stock programming on the 6.4 takes into account coolant temp, oil temp, ac pressure, fuel temp and trans temp. It also tries to turn on the fan partly depending on demand, I haven’t gotten the clutch on mine to work in between on/off. I can rev up to 3k+ and the fan will be turning 200-500rpm when unlocked, when locked up it runs pretty much engine rpm.

I’m not noticing any surging with mine but I’m also running it in on/off mode instead of pwm like the stock programming.

Thewespaul · Jun 1, 2019

If @ifrythings you don’t want to make these, I could have the adapters machined and put together a simple controller if someone wants a more bolt on setup, but I do kinda feel bad selling something that someone put all the work into coming up with, I feel like you should get some kind of kick back for the idea.

laserjock · Jun 1, 2019

You are running the IDI fan? I’ve wondered if the weight difference of the metal vs plastic fan would make a difference. I know the 6.4 fan is to big as is. You showed that and I’ve confirmed it for myself.

franklin2 · Jun 2, 2019

Thewespaul said:
If @ifrythings you don’t want to make these, I could have the adapters machined and put together a simple controller if someone wants a more bolt on setup, but I do kinda feel bad selling something that someone put all the work into coming up with, I feel like you should get some kind of kick back for the idea.

I hope you get it worked out to where you can get the adapters made. If I could buy the adapter and then buy myself one of those simple electric fan controllers with the probe that sticks in the coolant or the radiator fins, it would be a serious contender versus the stock clutch fan. What are the stock clutch fans now(that don't work)? $150?

You yourself know that once a machinist gets everything setup, it's cheap to duplicate and make a couple dozen versus one piece.

chillman88 · Jun 2, 2019

franklin2 said:
I hope you get it worked out to where you can get the adapters made. If I could buy the adapter and then buy myself one of those simple electric fan controllers with the probe that sticks in the coolant or the radiator fins, it would be a serious contender versus the stock clutch fan. What are the stock clutch fans now(that don't work)? $150?

You yourself know that once a machinist gets everything setup, it's cheap to duplicate and make a couple dozen versus one piece.

X2!

tjsea · Jun 3, 2019

The more I watch and read the more I'm seriously considering attempting this. If nothing else the advantage of ice cold ac while sitting in traffic would be amazing. I'm just debating if I'd rather run an idi fan like you are or cutting down a 6.4 fan, as well as using a control like you have or going with an off the shelf fan controller. Decisions and ideas, haha!

Sent from my SAMSUNG-SM-G890A using Tapatalk

saburai · Jun 3, 2019

You guys are Rockstars!
Cutting down the 6.4 fan seem to me the better option.

ifrythings · Jun 3, 2019

Thewespaul said:
If @ifrythings you don’t want to make these, I could have the adapters machined and put together a simple controller if someone wants a more bolt on setup, but I do kinda feel bad selling something that someone put all the work into coming up with, I feel like you should get some kind of kick back for the idea.

If you can make these that will be in the budget for the average idi guy I say do it. I’m just trying to help out the community as everyone else, I’m not trying to make anything on these mods but if anyone wants to help me out with parts I definitely wouldn’t say no.

The cheapest solution to do this would be buy/make the bushing, get a good clutch and plug from the wrecker for cheap as I can’t see many wanting to spend $300+ just for a new clutch and I wouldn’t buy anything but a ford clutch as I just helped a buddy change one on his 6.4 to a Hayden and watched it puke the oil out in a few days....

ifrythings · Jun 3, 2019

tjsea said:
The more I watch and read the more I'm seriously considering attempting this. If nothing else the advantage of ice cold ac while sitting in traffic would be amazing. I'm just debating if I'd rather run an idi fan like you are or cutting down a 6.4 fan, as well as using a control like you have or going with an off the shelf fan controller. Decisions and ideas, haha!

saburai said:
You guys are Rockstars!
Cutting down the 6.4 fan seem to me the better option.

I wouldn’t cut the 6.4 fan, no way your going to get it cut perfectly to keep it in balance and even if you do what are the chances it won’t explode at 3k rpm and take out the rad or near by parts, not worth the risk.

saburai · Jun 3, 2019

The 6.4 fan is plastic right? I'm pretty fried from another killer day, so I'm not gonna go back and look. But it's nominally something like 1-2" too big. With carefully measuring and cutting, why do you feel that it'd be out of ballance enough to fragment?

ifrythings · Jun 3, 2019

saburai said:
The 6.4 fan is plastic right? I'm pretty fried from another killer day, so I'm not gonna go back and look. But it's nominally something like 1-2" too big. With carefully measuring and cutting, why do you feel that it'd be out of ballance enough to fragment?

It would look like you’d need to take at least 2” off each blade to make it fit, it mite work just fine and be balanced but if it’s not balanced or removing 2” causes some kind of structural compromise in the fan I wouldn’t want to know what it does under the hood.

What’s wrong with bolting the idi fan on? It fits the center register and the bolt pattern matches.

Ideally if there was a rad with the tanks on the side that fit the rad support you could just bolt the whole 6.4 fan assembly on and have lots of cooling potential.

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jwalterus · Jun 3, 2019

saburai said:
With carefully measuring and cutting, why do you feel that it'd be out of balance enough to fragment?

You wouldn't have to worry about it fragmenting if you used the complete fan and made a new shroud.....
Just sayin'.....

On a side note, before worrying about it either way, maybe you should try the 6.4 fan with NO shroud.
Yes, without a shroud and the stock IDI fan it doesn't cool enough, but you ARE talking about a large increase in air flow using the 6.4 fan......

Thewespaul · Jun 3, 2019

I can build a sheetmetal fan shroud that seals better than the factory one and fits the 6.4 fan? Probably be looking $300-400 with the shroud and machining the adapter.

ifrythings · Jun 3, 2019

6.4 fan in an idi, it would self clearness eventually lol

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Thewespaul · Jun 3, 2019

Yeah that’s not happening.

Fan clutch upgrade...

ifrythings

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Thewespaul

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laserjock

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franklin2

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chillman88

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tjsea

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saburai

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ifrythings

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jwalterus

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Thewespaul

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