Pusher Fans
Two of these and you will be good to go, works for me anyway.
http://www.summitracing.com/parts/DER-16925/
http://www.summitracing.com/parts/DER-16925/
on first attempt i wired them into the factory harness with factory style plugs but they drew too much amperage and didnt work out. kinda a brain fart on my end. following that i added two simple single relay circuits triggered off the factory high speed fan triggers
i attached mine with the nylon ties through the radiator and havent had an issue, they function great
i was under the impression you didnt want a shroud on a pusher setup?
[QUOTE)
i was under the impression you didnt want a shroud on a pusher setup?[/QUOTE]
Same here. I thought you did not want anything blocking air flow through the front of the radiator with a pusher fan.
i was under the impression you didnt want a shroud on a pusher setup?[/QUOTE]
Same here. I thought you did not want anything blocking air flow through the front of the radiator with a pusher fan.
I have a pusher 16" FAL 2500cfm slim fan that im selling. I moved the radiator forward and bought a puller. I paid 14x for it...looking for 100$, let me know. It works perfect.
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What do you guys feel is the minimum requirement of cfm for a pusher type setup with out a/c for the stock radiator. 2200 cfm x 2 sounds like a ton of airflow and may be a race only type fan. I need something reliable for daily use and would prefer to use stock wiring. Stock fans pull around 3500 cfm so why would could you not get a similar cfm setup that will work with stock wiring?
Also from what I've read some of the xtreme (ultra, super, yada yada) high flow fans do not feature fully sealed motors. They say race only because they can get dust and water in the motor. I need a good reliable setup for a something I drive 5,000 + miles a year.
Also from what I've read some of the xtreme (ultra, super, yada yada) high flow fans do not feature fully sealed motors. They say race only because they can get dust and water in the motor. I need a good reliable setup for a something I drive 5,000 + miles a year.
I was told the same thing. My issue was the radiator was only working were the fan was. with this setup it pressurizes the entire radiator. Would it work better at speed without the shroud? probably as natural airflow would be in play. BUT at low speed or an parked this setup kicks ***. My only potential loss would be at speed the fans run more than needed if they were not shrouded.
What do you guys feel is the minimum requirement of cfm for a pusher type setup with out a/c for the stock radiator. 2200 cfm x 2 sounds like a ton of airflow and may be a race only type fan. I need something reliable for daily use and would prefer to use stock wiring. Stock fans pull around 3500 cfm so why would could you not get a similar cfm setup that will work with stock wiring?
Also from what I've read some of the xtreme (ultra, super, yada yada) high flow fans do not feature fully sealed motors. They say race only because they can get dust and water in the motor. I need a good reliable setup for a something I drive 5,000 + miles a year.
Also from what I've read some of the xtreme (ultra, super, yada yada) high flow fans do not feature fully sealed motors. They say race only because they can get dust and water in the motor. I need a good reliable setup for a something I drive 5,000 + miles a year.
TECH Enthusiast
Joined: Mar 2010
Posts: 700
Likes: 0
From: Utah
So you wired the relays to the stock wiring, then from the relay to the fan(s)? While running a power wire between the alt and relay...powering the relay? Just making sure I'm following is all.
The stock wiring triggers the relays (terminal # 85 and 86) . There is a hot wire from the alternator to the to a fuse, then to the relay (terminal # 30 and #87A) and on to the fan.
TECH Enthusiast
Joined: Mar 2010
Posts: 700
Likes: 0
From: Utah
Originally Posted by koolrayz
The fans I gave the link for are totaly sealed. I would not think twice about using them in a daily driver. Good luck finding a fan that will use a low enough draw to use the stock wiring AND put out 3500 cfm other than the stock unit. Dont you think I tried? It took me a long time to find these, Please let me know if you find something better?
The only fans I've found in this similar size only flow 1500-1750 cfm, but I am curious if 3000-3500 cfm would be sufficient in cooling a street car with a pusher type fan setup. It's hard to have overkill when it comes to cooling. What size amperage fuse do you use, 25-30, something in that range? Thanks!
i put 2500-3000 miles on my car a year, lots of it in stop and go around town traffic and have no cooling issues. in the dead of summer (100+ outside) the fans only come on in slow moving traffic and immediately drop the temps and turn off. even with a stock temp thermostat and stock radiator with a turbo with no blanket less than an inch away from the radiator, the car in traffic will stay right around 200 degrees, i could get it lower if i wanted
cruising speeds really should not have an impact. if you have cooling issues above 50 mph you've got different problems than the fans
Tally's setup with a stock radiator looks great. I have a much smaller radiater for packaging issues, most do not.
Last edited by koolrayz; Jan 28, 2011 at 09:17 PM.
My first plan was to run my dual 11" Spals fans as pushers but I just read on their website that they do not work very well ran that way. I will definitely be getting those 12" Derale's.