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Spal High Performance Cooling Fans
How to Choose the best Spal cooling fan system for your car or truck.
SPAL FAN FAQS
Q. Why should I buy a Spal fan?
A. If you looking for the best possible aftermarket cooling fans for your vehicle, Spal fans are the ones you want. Most Spal fans have water proof motors that are designed to run for years. See a lot of fans that look like Spal fans? See comparisons to Spal fans? Everyone else tries to copy Spal. They try to copy Spal because they know Spal makes the best cooling fans. Spal fans are Italian made and are very reliable. Is your car worth the investment of a Spal fan?
Q. How much cooling does my car need?
A. This is a tricky question. The amount of cooling you need is proportional to the horsepower your engine is putting out. At idle and low speed that might be 5 hp on a small engine or 30 hp on a large car or truck. The more power you use, the more cooling you'll need. That means a larger radiator and larger fan. Other factors such as air conditioning and automatic transmission will also add to the heat load generated by your vehicle.
Q. What size fan should I use?
A. Since it's almost impossible to have too large a fan in your car, we recommend that you use the largest fan assembly that you can fit. On many cars a single, 16 inch, high performance fan will suffice. On cars with large V8's the dual 11 inch or dual 12 inch fan assemblies are the best choice. Have a full size truck with an oversize radiator? You may be able to mount 2 of the 16 inch high performance fans there. Remember, larger fans will keep your car idling in the heat for longer periods of time without overheating.
Q. The fan CFM Spefifications are confusing. How do i know which fan really moves more air?
A. As a rule of thumb, the more current a fan draws, the higher the airflow it will have. Current draw is like the horsepower rating to a car. Our HO series fans draw aproximately 40 amps and are some of the most powerful fans available. We also have small fans that draw 2 amps and are great on motorcylcles and oil coolers.
Q. Tell me more about fan current?
A. Like we mentioned before, current to the fan is like horsepower to a car. So if you have a large multi row radiator and an air conditioning condensor and oil cooler up front, a high current fan will be able to pull air through it. The low current high flow fans work great on single and double row radiators, but fall short on multi row cooling systems.
Q. Can I wire my fan to a toggle switch?
A. While it is possible to wire your fan up through a simple toggle switch, we would not recommend this. It is too easy to forget to turn the fan on at the proper time. If you decide to use a toggle switch, make sure you use one with sufficient current rating (1.5 times higher than fan current draw) and heavy wiring (typically 12 gauge or higher)
Q. How do i control when the fan turns on?
A. The Spal 185FH and 195FH have thermostatic switches that mount on the engine or radiator and will turn on the fan at 185 degrees or 195 degrees. If you are going to run dual fans, using a 185FH on one fan and a 195FH on the other will stagger the turn on by 10 degrees and give you 2 stage operation. Alternately, the programmable Dakota DD-PAC-2750 fan controller can be used and can be set to turn fans on between 150 and 250 degrees.
Q. What's the difference between the straight blade fans and the curved blade fans?
A. The straight blade fans provide maximum cooling for their size. The curved blade fans sacrifice a small amount of performance in return for a much quieter fan. If noise is an issue, go with the curved blade fans. If ultimate performance is the objective, use the straight blade fans.
Q. Will the electric fans help keep my car cooler at highway speeds?
A. Generally, cooling fans do the most work at idle and speeds up to 35 mph. The faster the vehicle is moving the less important they become. At speeds over 35 mph, the ram air effect is much great than the efforts of the fan. If your car overheats at high speeds, it's probably not the fan.
Q. Can I reverse the power wires and make my "pull" fan work as a "push" fan?
A. Literally, yes it can work. But it will work very badly. Spal fan blades are designed to work in one direction. So our recomendation is "Don't do it".
Q. The 30102113 16 inch race fan has one of the highest CFM ratings of any of your single fans. Would this be the best fan to use on my daily driven car?
A. We do not recommend the 30102113 fan for daily driven vehicles. This fan was designed for circle track cars or drag race cars where maximum performance vs. weight is more important than long term reliability. This fan does not have a sealed long life motor. It is susceptible to water, dust and other environmental issues like high ambient temperatures and high humidity. Look at a fan like the 30102082, it provides a higher level of cooling in most applications and it has a long life water resistant motor.
Q. How much power do the Spal fans need? Do I need a new alternator or battery?
A. The different fans draw different amounts of current. Typically, the higher the airflow, the higher the current draw will be. Look at the spec sheets. Most of the Spal fans can run off of the existing vehicle electrical system without any problems. The higher output fans that draw 25 amps and up may need a higher output alternator to keep the battery from going dead. This is especially true on older vehicles that came with smaller output alternators. You won't need a new battery to run a Spal fan.
Q. When I look at the fans in the online catalog, I cannot see the specifications sheet?
A. You need to have Adobe Acrobat reader on your computer. Adobe Acrobat Reader can be downloaded "free" from the Abobe website. Download Acrobat Reader
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