which is the better bang for buck mod? - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 06-24-2007
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which is the better bang for buck mod?

thinking of getting either an electric fan or the dynomax catback ( they are pretty well the same price) which is the better bang for the buck mod- most noticeable? fuel mileage& hp/ torque gains? recommended diameter/ cfm rating of electric fan? awhile ago i believe car craft did a dyno article on solid/ clutch/ electric fans if i remember right fan could cost as much as 50 hp ( realize never seen that kind of gain on a 4.0 mabve on a blown big block) but is noticeable? installed a cold air kit on my 2000 4.0 ranger didn't notice a thing
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Old 06-24-2007
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I think MPG and HP wise the fan would be better, but then the exhaust would help out too...Not as much as the fan
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Old 06-24-2007
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thats what i am thinking...just thinking how much cfm of a fan i need and how to activate it ( either manual or thermoswitch)...anyone know if possible to get the dynomax kit without the muffler? thinking of putting a glasspack in its place....doing alot of thinking lol...my fiancee doesn't think i think at all!
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Old 06-25-2007
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For the same money you could get a crank underdrive pulley. I've done all three mods on my 06 FX4 and feel that the Pulley was the best bang for the buck.

Rich
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Old 06-25-2007
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any issues with water pump being underdriven with an electric fan? thus far biggest change was the aluminum driveshaft, granted only did that and tried a cold air kit... def want the underdrive pulley...on my mustang noticed it most climbing hills...difficult to remove? on my honda took a 1000lb impact gun ..nothing else would loosen the crank pulley bolt...broke 2 power bars for starters on that job!
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Old 06-25-2007
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Old 06-25-2007
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Quote:
Originally Posted by ringer4x4
any issues with water pump being underdriven with an electric fan?
nope.....if anything the pump is overdriven without a mechanical fan because of the lighter load on the pump......but no matter what, the pump will turn the same speed w/ or w/out the mechanical, just with the mechanical fan it takes more HP/TQ to turn the pump....
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Old 06-25-2007
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go with a BAMA chip thing.. im sure someone here has one.. and i think it increases what you want all together aside of an exhaust sound.
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Old 06-25-2007
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the SCT XCalibrator 2 only really works good if you have some other performance mods already done. yes there is A LOT of people here with a "Bama" tuner......i personally think that 1 should have other bolt on's done BEFORE the "Bama"...
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Old 06-25-2007
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oh ok... ya just listen to lifted97.. he knows whats best, just look at his truck.
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Old 06-25-2007
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Quote:
Originally Posted by DerangedPony
definitely something to consider.. heard mounting through the rad fins is bad as they are not designed to support any weight..any truth to that? also heard that any gain from removing the mechanical fan is offset by the increased load on the alternator to run the efan
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  #12  
Old 06-25-2007
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Quote:
Originally Posted by ringer4x4
thats what i am thinking...just thinking how much cfm of a fan i need and how to activate it ( either manual or thermoswitch)...anyone know if possible to get the dynomax kit without the muffler? thinking of putting a glasspack in its place....doing alot of thinking lol...my fiancee doesn't think i think at all!
If your looking for power, adding a glasspack will drop your torque. You need SOME backpressure.

If I had the choice between the Exhaust or an Electric Fan, It would be for the fan ( I have both Already ).

Your going to want a Fan that can toss 2800cfm's ( roughly ). Theres several Vendors on this site that carry them, all have been proven reliable.

The electric fan will remove a parasitic loss from your engine. You won't ' gain ' power, you will re-coup whats been taken away from it ( It was already there ). This will cause less of a load on the motor which gives you better econemy and frankly.. less wear.

The ONLY downside to an electric fan is teh Electrical draw. On average, I see a 20-22 Amp draw. I replaced/upgraded to a higher rated altenator. I havbe MANY electrical ' gizmos ' running in my truck via Neons, Solonoids, relays.. So I needed to upgrade without the fan before hand.

You can wire the fan for manual turn-on , to the A/C relay or even a Therma switch in your radiator ( however you choose. Mine has both thermal and manual capacities ).

D.
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Old 06-25-2007
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Originally Posted by lifted97ranger
the SCT XCalibrator 2 only really works good if you have some other performance mods already done. yes there is A LOT of people here with a "Bama" tuner......i personally think that 1 should have other bolt on's done BEFORE the "Bama"...
Wise words. Our engines are nothing more then ' air pumps '. A ' tuner ' would be a waste without first giving said pump a larger movement of air ( intake / exhaust ).
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Old 06-25-2007
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if i plan on getting an underdrive pulley but no overdrive alternator pulley a unreliable mod? sorta surprised there is that much of a gain replacing a plastic clutch fan with a efan
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Old 06-25-2007
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Quote:
Originally Posted by ringer4x4
if i plan on getting an underdrive pulley but no overdrive alternator pulley a unreliable mod? sorta surprised there is that much of a gain replacing a plastic clutch fan with a efan
if you get the UDP, then also include the alternator pulley IF you don't already have a SCT X2......you will get on average of 11-12 volts at idle if you don't do 1 or the other.....

think about this, the engine has to turn the mechanical fan.....when you remove the fan, the engine doesn't have to work as hard to turn the water pump, etc. that the engine HAS to turn to work......when you install an efan, the air is pulled through the radiator by something other than the engine......ever wonder why NASCAR cars run efans?

i am activitly in the hunt for the proper way to mount an electric water pump motor to my engine so i will have 1 less item that the engine needs to turn.....then all my engine would be turning is the alternator and the a/c unit when it is on....
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Old 06-26-2007
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I've got the bama tuner as well.. the UDP has been the best mod on this ranger so far.

btw, I measured volts after all mods were in place. It'll hold just fine. I did see the lowest down in the 11s but that was **only** with every possible thing turned on and only at idle. AC, E-FAN, WIPERS, LIGHTS, RADIO, windows, ect...

If your just sitting there under normal conditions.. as if in traffic.. the e-fan really won't kick on most of the time anyway so it's not an issue.

Been running it for about 10k miles now w/o any problems at all. AC on, towing the boat, ect... no problems.

Rich
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Old 06-26-2007
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Quote:
Originally Posted by wydopnthrtl
btw, I measured volts after all mods were in place. It'll hold just fine. I did see the lowest down in the 11s but that was **only** with every possible thing turned on and only at idle. AC, E-FAN, WIPERS, LIGHTS, RADIO, windows, ect...
i know with mine, i had voltage dips until i raised the idle with the X2.....it would dip down to 11v until i reved the engine a bit..........that is the only reason i recommend the alternator pulley (shoot the darn thing is only like $30) if you don't have a X2...
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  #18  
Old 06-26-2007
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There is a fine line between reliability and gaining a couple horsepower. I enjoy reading about the E-fan and pulleys, but am also wary of some of the issues that come with them. I did have an underdrive crank pulley on the '98 3.0 Ranger I used to own and I can say that it did add quite a bit of seat of the pants feel so I can't doubt that the 4.0 feels alot more peppy with a set of them on. I personally have a Gibson single cat-back exhaust, a hybrid (half K&N FIPK, half factory airbox) air intake with a K&N filter, and a BAMA tuner. Even without a bunch of performance mods I love the tuners ability to really firm up and alter the shift points as well as removing the speed limiter if I ever have a need to drive really fast. Seeing as how mine is a 2wd with a 4.0, it doesn't do too bad to start with as far as power/acceleration since it is lighter than alot of your guys 4x4s. Another route you have if you want acceleration power is to consider re-gearing.
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  #19  
Old 07-09-2007
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would they be any gain by replacing the clutch fan with a flex fan.... iffy on putting a electrical fan ( i know they come stock on alot of vechicles but concerned they MIGHT be reliability issues especially with the thermoswitch- if i do it probably make it come on manually)
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