Spal dual 11" fans finally installed.
Thread Starter
Senior Member
Joined: Sep 2001
Posts: 643
Likes: 2
From: California
Car: 91 Camaro RS Update: Sold Camaro, now own a "91" Corvette.
Engine: Corvette L98 TPI
Transmission: 700R4
Spal dual 11" fans finally installed.
The Spal dual 11" electric fan rated at 2780 cfm $245.10 shipped from www.jaycorptech.com finally fixed my summer cooling problems!
When sitting in stop and go traffic in over a 100* weather with the AC on, the temp gauge would easily hit 250*- 260*. With the Spal fans installed, I couldn't believe the gauge would not move past the 220* mark!
First I upgraded from the single factory electric fan to a single 16" Perma-Cool fan rated at 2950 cfm. After trying it out for a month or so I wasn't satisfied and I removed it and replaced it with two Perma-Cool 12" fans rated at 1650 cfm a piece. After using this setup for this whole summer the two 12" fans were still letting the temp gauge reach the 250*-260* in 100* stopped traffic.
I finally did what I should've done in the first place and bought the Spal dual 11" fans. So far I wasted around $96 for the 16" Perma-Cool fan then another $175 for the two 12" Perma-Cool fans.
When sitting in stop and go traffic in over a 100* weather with the AC on, the temp gauge would easily hit 250*- 260*. With the Spal fans installed, I couldn't believe the gauge would not move past the 220* mark!
First I upgraded from the single factory electric fan to a single 16" Perma-Cool fan rated at 2950 cfm. After trying it out for a month or so I wasn't satisfied and I removed it and replaced it with two Perma-Cool 12" fans rated at 1650 cfm a piece. After using this setup for this whole summer the two 12" fans were still letting the temp gauge reach the 250*-260* in 100* stopped traffic.
I finally did what I should've done in the first place and bought the Spal dual 11" fans. So far I wasted around $96 for the 16" Perma-Cool fan then another $175 for the two 12" Perma-Cool fans.
Trending Topics
Supreme Member
Joined: May 2002
Posts: 2,119
Likes: 0
From: Central NJ
Car: 86 Iroc-Z28
Engine: FB385
Transmission: 700r4
Very sweet man! Nice install, looks real clean. I may just go that route. I still have the stock fan in there. How difficult was it going from a single fan to dual? Any tips/parts i would need for the instal? Thanks for any help you could spare. later
Thread Starter
Senior Member
Joined: Sep 2001
Posts: 643
Likes: 2
From: California
Car: 91 Camaro RS Update: Sold Camaro, now own a "91" Corvette.
Engine: Corvette L98 TPI
Transmission: 700R4
I only had to trim the upper radiator plastic mount with a die grinder and then sand it smooth with a straight sanding board and also, removed the lower single fan support ( just unbolted 2 bolts).
This new fan setup really works Great. I think the first modification all thirdgens should do is install this Spal fan setup. The A/C works a lot better also, and I don't get nervous about the engine overheating when I'm stuck in traffic.
This new fan setup really works Great. I think the first modification all thirdgens should do is install this Spal fan setup. The A/C works a lot better also, and I don't get nervous about the engine overheating when I'm stuck in traffic.
Supreme Member
Joined: May 2002
Posts: 2,119
Likes: 0
From: Central NJ
Car: 86 Iroc-Z28
Engine: FB385
Transmission: 700r4
So do both fans come on at the same time then? Not like a stock dual fan car where one will come on as a secondary fan? Did they come with a wiring diagram so that you could do the wiring job with little problems, or are the fans made for a car with dual fans already? Also, do they leave the option for you to rig one up to a manual fan switch or toggle, like say for the staging lanes or traffic. Sorry for all of the questions man. I should ask the company. Thanks again for the help.
Supreme Member
Joined: Nov 2001
Posts: 1,886
Likes: 0
From: Jacksonville, NC
Car: Guess
Engine: Crazy 8
Transmission: So close to being a manual I can taste it
The fans come as just fans. They have no instructions or switches. This leaves the installation up to you or the installer.
With mine, I just changed the connectors from my stock wiring and the end on the Spal fans to a weather proof trailer plug. My car had dual fans so that made my swap really easy. If you are intalling dual fans in place of single fan, you may want to hook the second up to a toggle on your dash. You could read about that article ***** wrote about the "total fan control". Maybe some ideas of how to wire it so it is thermal switch operated.
With mine, I just changed the connectors from my stock wiring and the end on the Spal fans to a weather proof trailer plug. My car had dual fans so that made my swap really easy. If you are intalling dual fans in place of single fan, you may want to hook the second up to a toggle on your dash. You could read about that article ***** wrote about the "total fan control". Maybe some ideas of how to wire it so it is thermal switch operated.
Supreme Member
Joined: May 2002
Posts: 2,119
Likes: 0
From: Central NJ
Car: 86 Iroc-Z28
Engine: FB385
Transmission: 700r4
Thats what i figured! These companies make their products and expect you to know everything. Did the fans atleast come with the nylon pull style zip ties that are showed in the picture above or is that sold seperately too? thanks
Thread Starter
Senior Member
Joined: Sep 2001
Posts: 643
Likes: 2
From: California
Car: 91 Camaro RS Update: Sold Camaro, now own a "91" Corvette.
Engine: Corvette L98 TPI
Transmission: 700R4
I connected the Spal driver side fan to the two original single fan wires and wired in a separate "Bosche" 30 amp relay spliced into the fan switch wire in the passenger side head for the second fan. Connected this way, both fans come on when the fan switch hits 200* or when the A/C is turned on and I don't have to manually switch anything on.
Supreme Member
Joined: May 2002
Posts: 2,119
Likes: 0
From: Central NJ
Car: 86 Iroc-Z28
Engine: FB385
Transmission: 700r4
Sounds like a good idea! I could see where in a daily driver it would be a little difficult to keep remembering to turn on the secondary fan. It would just take some getting used to i guess. Thanks again for the info. My friend has a SPAL fan in his all motor civic hatch and that thing is pretty sick. They are no joke these fans. When it comes on, whatever is under his car at the time gets blown out from underneath. Its almost like running open headers, and remember, i said "almost"! lol Seriously though, it is a powerful little fan he has there. I think i made up my mind now. Good luck with your fans guys and thanks for the help. later
Thread Starter
Senior Member
Joined: Sep 2001
Posts: 643
Likes: 2
From: California
Car: 91 Camaro RS Update: Sold Camaro, now own a "91" Corvette.
Engine: Corvette L98 TPI
Transmission: 700R4
I used plastic fan mounting ties that push through the fan housing and radiator fins and are connected with a plastic cap on the other side. You can buy those at most part stores or from Summit or Jeg's.
No, I haven't ordered anything else from Jaycorp tech.
No, I haven't ordered anything else from Jaycorp tech.
Supreme Member
Joined: Nov 2001
Posts: 1,886
Likes: 0
From: Jacksonville, NC
Car: Guess
Engine: Crazy 8
Transmission: So close to being a manual I can taste it
Originally posted by 86IROCNJ
Do you mean the shroud? It is said that a fan/fans with a shroud tend to cool better.
Do you mean the shroud? It is said that a fan/fans with a shroud tend to cool better.
You can safely say it has been proven that shrouded fans are more effecient than unshrouded fans. Hence, the better cooling advantage.
Thread Starter
Senior Member
Joined: Sep 2001
Posts: 643
Likes: 2
From: California
Car: 91 Camaro RS Update: Sold Camaro, now own a "91" Corvette.
Engine: Corvette L98 TPI
Transmission: 700R4
Yes, I think the Spal fans cool a lot better because of the shroud, that's one of the main reasons I decided to try this fan unit. In fact, this fan assembly cools so well, I'm thinking of replacing the Jet Fan-Switch with the stock one. I'm also using a 195* thermostat.
The engine coolant temperature gauge has never hit past 220* yet with the AC on in 95* heat in stop and go traffic. I'll have to wait until next summer to really see how it does when the temps get to 105* I don't expect to have any cooling problems though.
The engine coolant temperature gauge has never hit past 220* yet with the AC on in 95* heat in stop and go traffic. I'll have to wait until next summer to really see how it does when the temps get to 105* I don't expect to have any cooling problems though.
Supreme Member
Joined: May 2002
Posts: 2,119
Likes: 0
From: Central NJ
Car: 86 Iroc-Z28
Engine: FB385
Transmission: 700r4
On my friend's car, it sounds like a damn jet taking off! Nah, just kidding. It is pretty loud though, sounds healthy, not an annoying loud...if that makes sense! I don't know if it is the same type of noise for an f-body version, but this little fan for his civic is loud. Lets just say you can tell that is it on if you were sitting in traffic. Inside the car, there is just a faint humming.
Supreme Member

Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by 86IROCNJ
On my friend's car, it sounds like a damn jet taking off! Nah, just kidding. It is pretty loud though, sounds healthy, not an annoying loud...if that makes sense! I don't know if it is the same type of noise for an f-body version, but this little fan for his civic is loud. Lets just say you can tell that is it on if you were sitting in traffic. Inside the car, there is just a faint humming.
On my friend's car, it sounds like a damn jet taking off! Nah, just kidding. It is pretty loud though, sounds healthy, not an annoying loud...if that makes sense! I don't know if it is the same type of noise for an f-body version, but this little fan for his civic is loud. Lets just say you can tell that is it on if you were sitting in traffic. Inside the car, there is just a faint humming.
hehe, i have a convertible.
there is no inside.
i can already hear the stock fan...
not bad, just curious mostly....
Supreme Member
Joined: Nov 2001
Posts: 1,886
Likes: 0
From: Jacksonville, NC
Car: Guess
Engine: Crazy 8
Transmission: So close to being a manual I can taste it
With the tops off and windows down, you can hear them come on if you turn off the radio. I can't hear them while cruising though...
The CFM ratings you stated are the BRAINF***** !Most companies play the customer here!
1700CFM at what voltage rate???
Problems with the 3rd gen radiator space is : 2 real big fans wouldnt have the space , so alot people give away some space as seen in the upper pic!
And yes the shroud helps, keep in mind to update the pump too and use all this to finally flush the radiator!!!!!!!!!!!!!!!
Use a steam cleaner for the air con unit and usually when you remove the radiator you will see lots of trash between it and the condenser.
For people with money update to a new radiator and get the aussie pump for space free working!
1700CFM at what voltage rate???
Problems with the 3rd gen radiator space is : 2 real big fans wouldnt have the space , so alot people give away some space as seen in the upper pic!
And yes the shroud helps, keep in mind to update the pump too and use all this to finally flush the radiator!!!!!!!!!!!!!!!
Use a steam cleaner for the air con unit and usually when you remove the radiator you will see lots of trash between it and the condenser.
For people with money update to a new radiator and get the aussie pump for space free working!
Thread Starter
Senior Member
Joined: Sep 2001
Posts: 643
Likes: 2
From: California
Car: 91 Camaro RS Update: Sold Camaro, now own a "91" Corvette.
Engine: Corvette L98 TPI
Transmission: 700R4
Yes, before I installed the different fan setups I installed a Stewart stage 1 waterpump, new 195* thermostat (because the 180* didn't help any), back flushed the radiator and removed all debris from the front of the radiator and condensor.
I also, read somewhere on this site that Perma Cool rates their fans in a "free air" configuration and Spal rates their fans after being mounted.
Anyways, as an update these Spal fans are doing great! During the last few 95* summer days, the coolant temp gauge never hit 220* sitting in stopped traffic with the AC on.
I also, read somewhere on this site that Perma Cool rates their fans in a "free air" configuration and Spal rates their fans after being mounted.
Anyways, as an update these Spal fans are doing great! During the last few 95* summer days, the coolant temp gauge never hit 220* sitting in stopped traffic with the AC on.
No flame here!LOL!well we mod our cars to a 3 fan design!changing the wiring and dumbing gms sensor !as a pusher fan we use Mercedes s-class parts!
our summers over here are not so hot but the temp never passes 190!
There is a better setup in works which will remove the waterpump from the engine and make working in the compartment a snap!
our summers over here are not so hot but the temp never passes 190!
There is a better setup in works which will remove the waterpump from the engine and make working in the compartment a snap!
Member
iTrader: (1)
Joined: Aug 2002
Posts: 239
Likes: 0
From: Suffolk VA, Cleveland NY
Car: 84 Berlinetta
Engine: junk 350
Transmission: TH350
Axle/Gears: Moser 4.56
Those fan blades sure do look beefy.. They look like they can move a lot of air, not like the wimpy permacool ones..
just my $.02
just my $.02
Thread
Thread Starter
Forum
Replies
Last Post
IROCZDAVE (88-L98)
Engine/Drivetrain/Suspension Parts for Sale
0
Sep 2, 2015 08:49 AM
IROCZDAVE (88-L98)
Engine/Drivetrain/Suspension Parts for Sale
0
Sep 2, 2015 08:43 AM








