Check it out: My junkyard electric fan install and homemade intake tubing
#1
Check it out: My junkyard electric fan install and homemade intake tubing
Hey guys,
I have always been kind of a junkyard DIY guy myself, but I am no genius!!!
I did some research, and found a fan that blows over 3000 cfm. The fan is a single motor, has a high/ low speed setting, but I just wired it up simply using the high speed setting only (no need for two speeds). I plucked this fan out of the junkyard on half-off day. I wired it up using a Flex-A-Lite controller, and a 70amp relay (I have experience wiring electric fans from years of 5.0 Mustangs). All the wiring is heat shrink wrapped for a professional look.
I used draw-thru radiator ties to mount the fan to the radiator. I also used the trunk weatherstripping off a 5.0 Mustang to seal the edge of the fan to the radiator.
All of a sudden, I realized my intake tubing was horrible, and no longer needed because it was designed to go around the stock clutch fan shroud.
So, I went to Home Depot, bought a 12.5" long piece of 4" diameter black PVC piping (I had them cut a 2 foot piece to the length I wanted), a black 4" diameter 90* PVC elbow, a 4" to 3" rubber reducer, and some PVC glue.
I used a dremel with a sanding roll to shave a little bit off the inside of the PVC elbow where it goes onto the t/b. It was too tite of a squeeze the way it came ... I used the stock rubber seal pushed onto the PVC elbow as the t/b seal. I also used the dremel to remove some of the rubber from the 4" to 3" rubber reducer where it mates to the MAF. It was too tite to fit over the MAF the way it came...
On the way home from Home Depot, I stopped at Kragen's and bought a K&N panel filter. I did this because from all my wrenching experience over the years, dyno tests, etc, nothing has given more horsepower on a 5 liter than a K&N panel filter inside the stock airbox. If there's one thing that you should certainly NOT do, it's run an open conical filter. This will hurt power, as you'll be sucking up all the hot engine air - NOT GOOD!
Eventually, I will fabricate a ram-air system using dryer ducting, and I will cut a hole in the tray under the stock airbox, but for now, I just wanted to get the intake tract straightened out.
The truck sounds WAY throatier with the air intake mods, and is a bunch quicker with the electric fan as well!
ADVERTISING REMOVED.
I have always been kind of a junkyard DIY guy myself, but I am no genius!!!
I did some research, and found a fan that blows over 3000 cfm. The fan is a single motor, has a high/ low speed setting, but I just wired it up simply using the high speed setting only (no need for two speeds). I plucked this fan out of the junkyard on half-off day. I wired it up using a Flex-A-Lite controller, and a 70amp relay (I have experience wiring electric fans from years of 5.0 Mustangs). All the wiring is heat shrink wrapped for a professional look.
I used draw-thru radiator ties to mount the fan to the radiator. I also used the trunk weatherstripping off a 5.0 Mustang to seal the edge of the fan to the radiator.
All of a sudden, I realized my intake tubing was horrible, and no longer needed because it was designed to go around the stock clutch fan shroud.
So, I went to Home Depot, bought a 12.5" long piece of 4" diameter black PVC piping (I had them cut a 2 foot piece to the length I wanted), a black 4" diameter 90* PVC elbow, a 4" to 3" rubber reducer, and some PVC glue.
I used a dremel with a sanding roll to shave a little bit off the inside of the PVC elbow where it goes onto the t/b. It was too tite of a squeeze the way it came ... I used the stock rubber seal pushed onto the PVC elbow as the t/b seal. I also used the dremel to remove some of the rubber from the 4" to 3" rubber reducer where it mates to the MAF. It was too tite to fit over the MAF the way it came...
On the way home from Home Depot, I stopped at Kragen's and bought a K&N panel filter. I did this because from all my wrenching experience over the years, dyno tests, etc, nothing has given more horsepower on a 5 liter than a K&N panel filter inside the stock airbox. If there's one thing that you should certainly NOT do, it's run an open conical filter. This will hurt power, as you'll be sucking up all the hot engine air - NOT GOOD!
Eventually, I will fabricate a ram-air system using dryer ducting, and I will cut a hole in the tray under the stock airbox, but for now, I just wanted to get the intake tract straightened out.
The truck sounds WAY throatier with the air intake mods, and is a bunch quicker with the electric fan as well!
ADVERTISING REMOVED.
#6
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Originally Posted by NeedASilverado!!
.....If there's one thing that you should certainly NOT do, it's run an open conical filter. This will hurt power, as you'll be sucking up all the hot engine air - NOT GOOD!
#7
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Originally Posted by NeedASilverado!!
.....If there's one thing that you should certainly NOT do, it's run an open conical filter. This will hurt power, as you'll be sucking up all the hot engine air - NOT GOOD!
I do have to disagree on the conical filter statement. I agree hot air is bad, but I have dyno results for the K&N panel filter and a K&N conical filter. I gained 18rwhp and 15rwtq on my truck. I do have the heat shield, which is sealed off pretty good from the engine by a rubber seal at the top. The air is pulled mostly from the front of the truck and the fender well. If any is pulled from the hot engine side of the heat sink, it is minimal. Speaking of hot air, I can also remove the headlight for "cold air induction" at the track. Looks goofy and is yet to yield any noticeable gains, but i do it anyway because it gives the air a direct path to the filter.
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#8
I gained 18rwhp and 15rwtq on my truck.
I'd like to try the conical filter, with one of those heatshields that seals around the hood.
They have them for $30 on ebay ... I would, of course, ditch the ebay filter and get a proper K&N conical filter.
Chris
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Originally Posted by NeedASilverado!!
I'd like to try the conical filter, with one of those heatshields that seals around the hood.
They have them for $30 on ebay ... I would, of course, ditch the ebay filter and get a proper K&N conical filter.
Chris
They have them for $30 on ebay ... I would, of course, ditch the ebay filter and get a proper K&N conical filter.
Chris