E-fans and CAI 5.4 2v

Looking to free up dead weight, and increase the airflow, I’m installing a Volant cold air intake and Flex-o-Lite electric fans on my 5.4 2v. I’ve installed e-fans on several of my trucks over the past 20 years, and the improvement is apparent. I’m also looking forward to getting rid of the OEM intake and opening up the engine bay.

I’ll report back with pics and butt-dyno results.

Please do, looking forward to info, pics and ye 'ole butt-dyno results. Maybe your experience will help me decide as well.

I have often pondered an electric fan setup. My conundrum, is it worth the potential reduction in drag to eliminate the robust and reliable mechanical setup. I dunno.

I also wonder about our stock intake setup, it really doesn't seem that restrictive to me. It seems like most of the air flow improvement is from the air filter and I abandoned oiled cotton gauze filters such as K&N many years ago.

I know efans are kind of worth it but won’t have any gains but mpg could improve. CAI is not worth it though. Look up Gotts mod it is all that is worthwhile.

Worth it.

The e-fans didn’t work out on the first go. I got the Felx-a-Lite 270, which is for my make, model and year; however, there was a different radiator during the 2003 model year. Through 12/04/03, the downflow radiator is what’s used in the EB. After that date, it’s the crossflow radiator. The Flex-a-Lite 270 only works with the crossflow radiator.

So I’m looking at the model 272 for my application. I’ll have to confirm with Flex-a-Lite if than will work. More to follow.

@kep5niner , FF Dynamics has an electrical fan kit for the down flow radiators on the 03-04 Expedition. It’s something that I have been thinking about for the same reasons that you mentioned. But as @whtbronco stated, the mechanical fan is robust and reliable. So that’s been my hold up. I’ve considered just getting an electric fan for the A/C so it can be cold at idle. But having more space to access this engine would be very nice. Best of luck on your journey, look forward to seeing the results and photos. You have made some very good posts about the changes you have made.

That is a nice amount of space you got back with the new intake plenum. It looks weird to me with how smooth that bend is. But we don’t stare at our engine bays all day when driving so I shouldn’t care about that. Did you notice a significant increase in sound from the cabin?

I have a 2002 ford raptor efan with wire relay comes with 4 core radiator please if interested text me [email protected]

Thanks for the comments BigRed. I haven’t had the truck on the road yet to see / hear / feel any performance differences. I’m not expecting much, but just getting rid of the stock monstrosity was worth it to me, making the engine bay more user / maintenance friendly.

I did confirm with Flex-a-Lite that they do not have a kit that works for the ‘03 EB with the downflow radiator. I did some quick research on FF Dynamics, sent them a message (no phone number to call), and I’m going to wait for a proof of life from them before I’ll do business. Some mixed reviews on the interwebs.

I only came across FF Dynamics when doing research nearly two years ago because I found out about the difficult radiator design for most kits. But I did not do any major research as I was and still am not ready to pull any triggers.

Any information you get will be helpful for future decisions. We look forward to your future posts. I hope it goes well for you as they are not cheap modifications you are making. And it would be unfortunate for you to have to revert back to mechanical if you do make the switch.

58Daoud said:

I have a 2002 ford raptor efan with wire relay comes with 4 core radiator please if interested text me [email protected]

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2002 Raptor? They don’t exist.