Adding extra fan to the front of radiator
Senior Member
iTrader: (-1)
Joined: Oct 2008
Posts: 809
Likes: 1
From: Siloam Springs AR.
Car: 1998 Trans/Am, 1989 RS Camaro
Engine: LS1, LQ9 6.0
Transmission: 4L60E, 4L60E
Axle/Gears: 2.73, 2.73
Re: Adding extra fan to the front of radiator
First of all what are we working on? Second there really is no need for a pusher fan on these cars unless you have got a duramax in your car with no room for a fan.
Supreme Member
Joined: Jan 2009
Posts: 2,313
Likes: 115
From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: Adding extra fan to the front of radiator
i noticed '84-89 'vettes with H/D cooling come with an
auxillary fan of about 12"in front of the radiator to
assist the main fan(main fan same as 3rd gen single fan
BTW)so it must help some if GM put that fan there...
Pusher fans are at least 40% less effective than the
same fan properly placed behind the radiator to pull
air through-this is because as the fan propells the air
rotation is imparted on the moving air and hits the
radiator fins at an angle,slowing air velocity.Once on my
'69 camaro without a fan shroud and the belt driven fan
about 8"back,tried a pusher fan to help air flow-did
not have much effect,when the same fan was tried
behind the radiator it was more effective and airflow
was stronger.
auxillary fan of about 12"in front of the radiator to
assist the main fan(main fan same as 3rd gen single fan
BTW)so it must help some if GM put that fan there...
Pusher fans are at least 40% less effective than the
same fan properly placed behind the radiator to pull
air through-this is because as the fan propells the air
rotation is imparted on the moving air and hits the
radiator fins at an angle,slowing air velocity.Once on my
'69 camaro without a fan shroud and the belt driven fan
about 8"back,tried a pusher fan to help air flow-did
not have much effect,when the same fan was tried
behind the radiator it was more effective and airflow
was stronger.
Supreme Member
Joined: May 2005
Posts: 1,057
Likes: 3
From: Malvern, Arkansas
Car: 90 IROC 2-92 Zs blk vert & prpl
Engine: stealth ram brodix track 1 ful port
Transmission: 700r4 4l80e
Axle/Gears: iroc 375 lokr 92 Z 277 pos vert 327
Re: Adding extra fan to the front of radiator
I have a pusher and puller and it helped mine a lot. It used to get hot quick and now it will run cool. I got rid of the two factory fans and replaced them with 3500cfm fan (puller) and it works.
Thread
Thread Starter
Forum
Replies
Last Post
eightsixseven
Tech / General Engine
2
Dec 16, 2024 01:50 PM
1992 Trans Am
History / Originality
27
May 10, 2023 07:19 PM
ambainb
Camaros for Sale
11
Apr 25, 2016 09:21 PM
