What are you guys using out there? Looking for something as slim as possible but capable of racing duty cycles.
Low Profile Radiator Fans
- Thread starter RYU
- Start date
Have you checked the Spal fans? They have high performance and extreme performance.
http://www.spalusa.com/store/main.aspx?p=CategoryBody&c=FAHI
http://www.spalusa.com/store/main.aspx?p=CategoryBody&c=FAHI
+1 Spal.
Thank you guys. Looking into SPAL now.
which model of the spal fans do primers use for their nsx (especially those with mishimoto radiators)?
Any advantages of running one of these low profile fans?
I have a pair of 10" high efficiency "pushers" from Spal on my car. They work very well. Spal is kinda' the standard in the industry I think.
Any feedback on noise levels with the SPALs?
wow, win-win situation.
thank you Jeff and all. i'm on the hunt for sizing now. Also trying to figure out if I need a shroud or if I want the thru-put airflow.
You can install two 12" Spal pullers - do a search I have posted a picture of mine with custom shroud. DaliRacing has pictures too.
Edit: when you go with dual fans, there is some splicing that needs to be done; and you will most likely need 40 amp breaker given the load. I did after burning a fuse or two.
Edit: when you go with dual fans, there is some splicing that needs to be done; and you will most likely need 40 amp breaker given the load. I did after burning a fuse or two.
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^^ This was my next question. Will search for your thread now. Thank you!
Given that the stock fans are pullers (goes in the back, correct?) i'm surprised you guys are using pushers (goes in the front, right?).
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My bad, you want pullers! Whatwas I thinking!!
Again. What's the advantage to this? Anything besides just better cooling or more air?
Are you having cooling issues ryu?
Are you having cooling issues ryu?
Damn. That looks fantastic.
If you don't track the car and spend a lot of time near redline you won't need to upgrade. Keep your stock stuff.
But the FedEx box ducting is even better!
The loved the FedEx prototype R&D - especially it ease of use LOL! But I ended up using customizing the DaliRacing duct sicne I already had it - shortened the the bottom width and trimmed the top corners back.
I am still considering deleting the two brackets that hold the duct to the firewall and just use a bolt or two to hold it to the spare bracket.
I am still considering deleting the two brackets that hold the duct to the firewall and just use a bolt or two to hold it to the spare bracket.
Regan-
I was considering going this route as well last summer when I was having overheat problems at the track, but after reading hrant's thread and findings, it is not as clear whether this setup will help you. Here are the takeaways I got from it:
1. The OEM fan moves A LOT of air. No one knows exactly how much, but it is significant. Therefore, it is not clear if going with aftermarket fans will move any more CFM than the factory fan.
2. The full shroud will help at slow speed, but at speed on the track the shroud will restrict airflow and cooling. You are greatly reducing the surface area exposed to oncoming airflow at speed. The suggested compromise was to fit two SPAL fans without a shroud.
In any event, my cooling issues turned out to be several broken clamps on the main cooling hoses combined with a leaky bleeder cap on the heater line, which were letting air into the system. After fixing those isssues and installing a Koyo rad, my car is rock solid at the track with the stock fan, and even with the Dali shield in front of the rad (running in our thin Colorado air). I know you have a SC, so rather than deal with fans, maybe look at a bigger capacity rad, like the PWR or Driving Ambition racing version?
I was considering going this route as well last summer when I was having overheat problems at the track, but after reading hrant's thread and findings, it is not as clear whether this setup will help you. Here are the takeaways I got from it:
1. The OEM fan moves A LOT of air. No one knows exactly how much, but it is significant. Therefore, it is not clear if going with aftermarket fans will move any more CFM than the factory fan.
2. The full shroud will help at slow speed, but at speed on the track the shroud will restrict airflow and cooling. You are greatly reducing the surface area exposed to oncoming airflow at speed. The suggested compromise was to fit two SPAL fans without a shroud.
In any event, my cooling issues turned out to be several broken clamps on the main cooling hoses combined with a leaky bleeder cap on the heater line, which were letting air into the system. After fixing those isssues and installing a Koyo rad, my car is rock solid at the track with the stock fan, and even with the Dali shield in front of the rad (running in our thin Colorado air). I know you have a SC, so rather than deal with fans, maybe look at a bigger capacity rad, like the PWR or Driving Ambition racing version?
Honcho is partially right with my take of what I surmised.
First, early model NSXs had a different fan blade, not sure when the switch was made and if the latter are more efficient but something to note.
Yes you would prefer open flow with no shroud in the back for maximum air flow at higher speeds. BUT, I have looked at the open space in the dual Spal with a shroud vs the OEM set up and my "visual" assessment says there is "more" open space behind the dual shroud set-up than the OEM fan and its shroud.
The OEM fan may indeed flow good air but I have never been able to find statistics on it. I can't believe the dual Spal with pull less air than the OEM - one has to show me statistics.
As Jim's link states, a nice frontal shroud, with curved intake design and clean radiator fins are equally important. Given the limitations of what each wants to design/fix, and for what primary use - and the aesthetics as Dave (Turbo2go) would pitch - for my needs this was a perfect and reasonable cost solution.
For those inquiring where I got the custom shroud, I purchased this set up used from a fellow NSXPrime/tracking-instructor in Colorado. He opted to go with Driving Ambition radiator.
First, early model NSXs had a different fan blade, not sure when the switch was made and if the latter are more efficient but something to note.
Yes you would prefer open flow with no shroud in the back for maximum air flow at higher speeds. BUT, I have looked at the open space in the dual Spal with a shroud vs the OEM set up and my "visual" assessment says there is "more" open space behind the dual shroud set-up than the OEM fan and its shroud.
The OEM fan may indeed flow good air but I have never been able to find statistics on it. I can't believe the dual Spal with pull less air than the OEM - one has to show me statistics.
As Jim's link states, a nice frontal shroud, with curved intake design and clean radiator fins are equally important. Given the limitations of what each wants to design/fix, and for what primary use - and the aesthetics as Dave (Turbo2go) would pitch - for my needs this was a perfect and reasonable cost solution.
For those inquiring where I got the custom shroud, I purchased this set up used from a fellow NSXPrime/tracking-instructor in Colorado. He opted to go with Driving Ambition radiator.
