How to: V6 Efan Conversion

Hemi395

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Looks that way and I agree 100%. I went to three mopar sites all say discontinued.
If this one ever failed, I'd return to stock setup and I keep my old stuff with 38k miles on it before i'd put dorman/TYC on.
Well that sucks, yeah I would do the same.

When I was looking at doing this I grabbed a Dorman one from the local parts store and it just felt cheap and light. So I returned it and ordered the Mopar unit. It's a good amount heavier and has a Denso motor. There's a reason it's more money than the aftermarket ones.
 

OcallyRamFam

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Whats up guys. Happy Friday and Beers to the weekend!!!

I am about to do this conversion while doing lifter/ cam/ everything else that all of us seem to have to do.

I definitely understand why some of you have decided to use the 3.7 OEM fan over the TYC but as mentioned above it seems like they are discontinued and getting hard to find - plus $400+ is out of my price range for this ATM.

Reading on summit reviews on the Dorman OE replacement, and someone came up with this idea and I think its a winner:

"........ A lot of people complain about the harness not reaching so I simply swapped my Hemi fan motor over to the V6 fan shroud and used the larger V6 fan blade as well, it worked perfectly, my harness was just the right length. ...."​

Seems to me it will resolve not only the shorter harness issue on the available (and cheaper) replacement fans but potentially more reliable in using the oem fan motor that would otherwsie just get chucked in the bin. no clue if the motor is more heavy duty/spins faster to increase CFM or not???

Anybody else have real world experience in doing this?
 

PaleFlyer

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Whats up guys. Happy Friday and Beers to the weekend!!!

I am about to do this conversion while doing lifter/ cam/ everything else that all of us seem to have to do.

I definitely understand why some of you have decided to use the 3.7 OEM fan over the TYC but as mentioned above it seems like they are discontinued and getting hard to find - plus $400+ is out of my price range for this ATM.

Reading on summit reviews on the Dorman OE replacement, and someone came up with this idea and I think its a winner:

"........ A lot of people complain about the harness not reaching so I simply swapped my Hemi fan motor over to the V6 fan shroud and used the larger V6 fan blade as well, it worked perfectly, my harness was just the right length. ...."​

Seems to me it will resolve not only the shorter harness issue on the available (and cheaper) replacement fans but potentially more reliable in using the oem fan motor that would otherwise just get chucked in the bin. no clue if the motor is more heavy duty/spins faster to increase CFM or not???

Anybody else have real world experience in doing this?
Depending on how the OEM BLADES are mounted, this may be a difficult proposition, and/or you could damage the motor (not sure if brushed, or brushless. If brushed, breaking the brushes, if brushless, just straight damage.)

PLUS, the commenter bought the expensive fan, and is only using part of it. the V8 fan MOTOR would be sized for the smaller load of the V8 fan, versus the larger V6 fan blades, so is likely pulling more amps on the motor to spin it, and either getting less speed, so less air flow, or the V8 motor will burn out like the Dorman/TYC's are reported to be failing.
 

OcallyRamFam

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Depending on how the OEM BLADES are mounted, this may be a difficult proposition, and/or you could damage the motor (not sure if brushed, or brushless. If brushed, breaking the brushes, if brushless, just straight damage.)

PLUS, the commenter bought the expensive fan, and is only using part of it. the V8 fan MOTOR would be sized for the smaller load of the V8 fan, versus the larger V6 fan blades, so is likely pulling more amps on the motor to spin it, and either getting less speed, so less air flow, or the V8 motor will burn out like the Dorman/TYC's are reported to be failing.
The commenter bought (and did this mod) to a Dorman fan - https://www.summitracing.com/parts/rnb-621-410/part-type/fans-electric

Are you saying this is one of the good units to use out of the box? I am under the impression its one of the ones that people say have a weak motor (ie low CFM) but Im trying to verify this. Its not the $400+ Mopar fan. Is there another less expensive Dorman model to stay away from?

I understand your theoretical precautions on motor swap, but why I wanted to see if others had actually done this and if it worked

thanks
 
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