Electric Fans
Thread Starter
Supreme Member
Joined: Jul 1999
Posts: 1,011
Likes: 0
From: Saskatoon, Saskatchewan, Canada
Car: 86 Trans Am
Engine: 406
Transmission: TH350, 4200
Axle/Gears: Moser 9", 3.89
Electric Fans
I am switching to a CSR electric water pump on my strip/street car and want to upgrade from the stock single electric fan. What are you guys using for aftermarket fan setups. What's are the best high cfm, low amp electric fans that fit in a third gen with a sbc and a 31x19 Griffin rad. Thanks.
Senior Member

Joined: Jan 2006
Posts: 726
Likes: 1
From: League City, TX
Car: 90 Formula -- tot resto in progress
Engine: 350
Transmission: 700R4 w/ 2500 stall, by Owen @ ARD
Axle/Gears: 3.23 posi disc
Re: Electric Fans
How much cooling do you really need up there? 
If you want to go dual, the GM units work OK. Duals
are intended to have staggered trigger temps, so the
control function can be a bit of a hassle. This is the
route I'm taking down here in hot S-Tex. I have a Dakota
Digital fully adustable controller, and the GM dual fans.
If those fans aren't enough, I'll get a pair of 14"
units from Summit, about 1300 cfm & $100 each.
If you want to go single, the control function is much
easier, i.e. single sensor/power relay, with some variety
of operational range sensors available. For a single
unit, I'd want at least 2000 cfm cabability.
There's a direct correlation between CFM & amps. So plan on
a relay circuit.
Good luck, ayh.
(How do you spell that???)

If you want to go dual, the GM units work OK. Duals
are intended to have staggered trigger temps, so the
control function can be a bit of a hassle. This is the
route I'm taking down here in hot S-Tex. I have a Dakota
Digital fully adustable controller, and the GM dual fans.
If those fans aren't enough, I'll get a pair of 14"
units from Summit, about 1300 cfm & $100 each.
If you want to go single, the control function is much
easier, i.e. single sensor/power relay, with some variety
of operational range sensors available. For a single
unit, I'd want at least 2000 cfm cabability.
There's a direct correlation between CFM & amps. So plan on
a relay circuit.
Good luck, ayh.
(How do you spell that???)
Thread Starter
Supreme Member
Joined: Jul 1999
Posts: 1,011
Likes: 0
From: Saskatoon, Saskatchewan, Canada
Car: 86 Trans Am
Engine: 406
Transmission: TH350, 4200
Axle/Gears: Moser 9", 3.89
Re: Electric Fans
I ended up picking a Flex-A-Lite 420 eh. 2500 cfm and 22amps. I will just put it on a switch like my old setup...the car is mostly just for the track but is street driven (the street out to the track...). http://www.summitracing.com/parts/FLX-420/
Thanks for the reply, eh.
Thanks for the reply, eh.
Senior Member

Joined: Jan 2006
Posts: 726
Likes: 1
From: League City, TX
Car: 90 Formula -- tot resto in progress
Engine: 350
Transmission: 700R4 w/ 2500 stall, by Owen @ ARD
Axle/Gears: 3.23 posi disc
Re: Electric Fans
Good to go, eh. 
Check out Kevin McClelland's column in the Aug. issue of
Chevy High Performance magazine, re. cooling fan current
draw. I don't know what kind of switch you have, but
check the rating of over-the-counter switches.
22 amps @ 12 volts is a good bit of power, needing
at least 12 ga., preferably 10 ga wire. Relays are
really cheap, compared to electrical fire repair.
Okay, I checked out the link -- high end DUAL fans,
on a single switch. You sure suckered me in on that one.

Check out Kevin McClelland's column in the Aug. issue of
Chevy High Performance magazine, re. cooling fan current
draw. I don't know what kind of switch you have, but
check the rating of over-the-counter switches.
22 amps @ 12 volts is a good bit of power, needing
at least 12 ga., preferably 10 ga wire. Relays are
really cheap, compared to electrical fire repair.
Okay, I checked out the link -- high end DUAL fans,
on a single switch. You sure suckered me in on that one.
Last edited by l_dis_travlr; Jun 19, 2009 at 04:21 PM.
Joined: Aug 2006
Posts: 12,803
Likes: 103
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Electric Fans
22 amps! holy crapnuts! I have a pair of perma cool fans, 2950cfm each under 10 amp draw.
Senior Member
Joined: Jun 2008
Posts: 1,298
Likes: 2
From: Norfolk VA
Car: 85 Camaro IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: open rear, 3.42 gears
Re: Electric Fans
22 amps! holy crapnuts! I have a pair of perma cool fans, 2950cfm each under 10 amp draw.
the factory single fan is 25 amps IIRC
22 amps sounds about right to me.
Trending Topics
TGO Supporter
Joined: Sep 2000
Posts: 6,775
Likes: 27
From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Senior Member

Joined: Jan 2006
Posts: 726
Likes: 1
From: League City, TX
Car: 90 Formula -- tot resto in progress
Engine: 350
Transmission: 700R4 w/ 2500 stall, by Owen @ ARD
Axle/Gears: 3.23 posi disc
Re: Electric Fans
Yuze guys, eh.
Hoser must be sittin up there drinkin beer, and thinkin
"What a buncha moose-heads eh."
Hoser must be sittin up there drinkin beer, and thinkin
"What a buncha moose-heads eh."
Supreme Member
Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: Electric Fans
Don't know about stock factory single fan, but the Autozone/Advance replacements are only 11.5 amps
Senior Member
iTrader: (4)
Joined: Oct 2008
Posts: 857
Likes: 5
From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Electric Fans
What do you guys think of these:
http://cgi.ebay.com/ebaymotors/PROCO...Q5fAccessories
Here's my car btw:
https://www.thirdgen.org/forums/nw-i...re-bought.html
Thanks!
http://cgi.ebay.com/ebaymotors/PROCO...Q5fAccessories
Here's my car btw:
https://www.thirdgen.org/forums/nw-i...re-bought.html
Thanks!
Thread
Thread Starter
Forum
Replies
Last Post
TMZIrocZ350
Engine/Drivetrain/Suspension Parts for Sale
1
Oct 7, 2015 12:09 PM






