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any ideas for realatively low cost hp increases for my efi5.0?

fordman76367

Texas Chapter member
426
4
okay ive decided to play with my new toy.....and im looking for some ideas/products for a relatively lowcost power boost to my 1994 efi 5.0 in my 94' and im sure someone will say a cam...and im considering it...ive already opened up the exhaust so she can exhale...maybe help with her inhale?....lemme hear the ideas im open to anything that ill be able to get a mild to moderate power gain from that wont run the money well dry
 

F 150Cobra

"Wild HoRsE" Got Torque?
3,642
104
Aruba
headers- single 2.5 inch exhuast
Cam (Comp cams 35-351-8)
Gt40 heads
4.10 gears

and you will be HAULING ***


cheap side.. bump the intake to 12 BTDC
Free flowing exhuast
and a good tune up with ford racing plug wires and msd blaster coil not the msd box it wont do squat for our trucks..
 
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fordman76367

Texas Chapter member
426
4
im covered in the exhaust dept. i got shortys w a single 2.5 in exhaust w a gutted cat and 18'' glasspack...im gonna chop the cat n weld in solid pipe all a gutted cat is is a low pressure zone....ive heard alot about the efans but been a little skeptical i might give em a whirl...im lookin into some hooker longtube headers and whats a ball park price on 4.10 gears?
 

TexasNomad

FTFS Designated DRINKER!
Efan Yo, Efan..
 

fordman76367

Texas Chapter member
426
4
so is an efan an add on or does it replace your belt driven fan?
 

KdPate

After Hours Garage
Long tube headers and full exhaust
E-fan
Gears (maybe)
Camshaft change if you want to dive into the engine......:wasntme:
 

fordman76367

Texas Chapter member
426
4
ive looked at efans and they arent bad price wise for the benifits it suosedly has...im all about learnin about what om buyin before i buy it...skandocious knows this....we had to have a discussion over gatorback belts (fixed that btw..diff story for another day) .....what causes the power boost...im asuming is cause it cools better and requires less power?
 

O'Rattlecan

Redneck Prognosticator
26,687
797
Belton, MO
Less air drag on the entire accessory belt. It's pretty parasitic, so it just runs when it has to on electricity that's already been produced. The E-Fan is a win-win really.

Ryan
 

Skandocious

Post Whores Make Me Sick
19,076
655
California
ive looked at efans and they arent bad price wise for the benifits it suosedly has...im all about learnin about what om buyin before i buy it...skandocious knows this....we had to have a discussion over gatorback belts (fixed that btw..diff story for another day) .....what causes the power boost...im asuming is cause it cools better and requires less power?
Like Ryan said, the fan adds drag on the belt system. Problem is, the clutch is not 100% efficient; if it were, it would disengage completely when the engine doesn't need the cooling. But that doesn't happen, so even when the fan is not needed (which is the MAJORITY of the time), your engine is still working to turn that beast.

E-fan only comes on when needed, and uses electricity which DOES create a load on the alternator, which puts load on the pulley and eventually creates a load on the belt, but the load is substantially less than that of the clutch fan bolted to the water pump.

It'll give you some nice oomph and possibly some more mpg's (don't expect a lot). I think I saw about .5 mpg better with the efan.

If you're worried about cost then get an efan from a t-bird at a junkyard. You're looking for any 90s t-bird with a V8 or a 3.8L V6. It'll have a fan that pushes more than enough air for your V8. This is a very common mod in the bronco community.
 

fordman76367

Texas Chapter member
426
4
if i were to get an efan id need a smaller belt right?...and i understand the e fan now....
 

Skandocious

Post Whores Make Me Sick
19,076
655
California
No sir. The efan just bolts onto the front of your water pump pulley. Remove the bolts and the fan will separate from the pulley, and the pulley will fall off. Remove fan and replace the 4 bolts to reattach the pulley.
 

fordman76367

Texas Chapter member
426
4
much more simple than i pictured.....i gotcha....and theres no wiring to run is there?....it seems like a simple bolt on procedure...i like simple bolt ons....im nt afrait to dive in an engine but im a major fan of simplicity
 

Skandocious

Post Whores Make Me Sick
19,076
655
California
much more simple than i pictured.....i gotcha....and theres no wiring to run is there?....it seems like a simple bolt on procedure...i like simple bolt ons....im nt afrait to dive in an engine but im a major fan of simplicity
Sorry-- there's quite a bit of wiring actually :rofl: Just to illustrate, here is my wiring diagram that I designed for my fan setup:



circuit2.png




As you can see I've got 3 relays, a 3-position switch, a temperature operated switch, and several fuses that are not pictured in the diagram. It's not a super easy setup but mine is also a little more complex than some others. There are plenty of walkthroughs on the net-- just google "taurus fan swap" (the taurus fan is another common one to use... tbird is better).
 

fordman76367

Texas Chapter member
426
4
i figured ther'd b wirin....wirin is no biggie though.... ive had my fair share of wirin w havin to rewire my rear end in the 84 and the fun fun fun task of wirin a hottub.... a total ***** btw...i think ive decided on an e fan and maybe lookin for some longtubes and sellin my hooker shortys
 

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