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Are two fans better than one?

1960 Views 3 Replies 4 Participants Last post by  NcChopper, 
Q
I run hot , over 200 can happen at a prolonged stop light. I have an 04 BB using 04 radiator with single fan. I've seen double fan set-ups on other bikes and trikes. Are these primarily for show or is there a significant increased air flow & if so how much? Are these a Boss Hoss item? (Dyersberg) or where can they be purchased, assuming they work?
Thanks in advance for your input.
quogue
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L
Are 2 fans better than one?

I think others that have used the different setups will know for sure but if you just want to browse the numbers (sizes, airflows, etc.) then go to this link.

http://www.spal-usa.com/html/pgtablel.htm

From there you can download the spec sheets if you want or just look in the tables. Of course the figures won't tell the whole story!!!

Les (UK)
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L
the two fans were on the early bikes. the twin fans produced about 1200 cfms.the single fan is at about 1700 cfms.
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N
Quogue,

Are you trying to cool the bike down or yourself? 200+ is normal for the BB in warm weather.

Chris
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