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Old 11-19-2012, 06:02 PM   #16
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Originally Posted by Xpress View Post
A 15mm deep fan does not necessarily move more air than a 10mm deep fan. What is the cfm of the SPR fan at 5v?
May be true but at least with a 15mm fan with a smooth surface I can mount it with tape on the T4 theirs not really a good spot to mount a bracket to hold the motor
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Old 11-19-2012, 07:38 PM   #17
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SPR fan moves 4.06CFM I believe. I dunno guys have run many different fans at our track and everyone through testing all different fans of different companies agrees this works the best.
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Old 11-19-2012, 09:35 PM   #18
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Yeah racing tornado fan. Was recommended by someone else on here, it seriously blows, just check out YouTube!
We like this one and the muchmore one here. But for some reason the black Yeah racing one seems to be better than the "coloured" ones......
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Old 11-19-2012, 09:49 PM   #19
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Tornado has my vote. Running off of receiver is more than enough cooling. Like a previous poster said watching that youtube video sold me. Untill I see either brands doing a video actually showing what a 25mm or 30mm fan can do, I will stick with the Tornado.
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Old 11-19-2012, 10:12 PM   #20
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Originally Posted by Skiddins View Post
Find a distributor in the US for these;
http://www.nmbtc.com/fans/part-numbe...L-01W-B50/4966

Shouldn't be that difficult, or expensive.
8.1cfm at 5V
Will this run on 8.4v? The Yeah Racing Tornado is the best at that voltage since the Delta's have disappeared, but I'm always looking for something better.
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Old 11-20-2012, 02:58 AM   #21
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Will this run on 8.4v? The Yeah Racing Tornado is the best at that voltage since the Delta's have disappeared, but I'm always looking for something better.
Never tried it off the battery due to being 5V.

I run it off the receiver which is 6V.
Everytime someone has pointed out how much air their fan shifts I just show them the NMB fan and they realise they wasted their money

If you can find a decent dist. instead of a model shop etc it should be pretty cheap (less than half the cost of a Much More fan here)
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Old 11-20-2012, 03:00 AM   #22
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Originally Posted by Xpress View Post
I believe that ROAR limits fans to 1 30x30mm fan for the motor. 40x40 not ROAR race legal in the US.
That would indeed be a bummer
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Old 11-20-2012, 06:11 AM   #23
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Originally Posted by jlfx car audio View Post
May be true but at least with a 15mm fan with a smooth surface I can mount it with tape on the T4 theirs not really a good spot to mount a bracket to hold the motor
yes there is.

Look on the bulkhead, there is a tapped screw hole spare behind the motor. Put a grub screw in here and then attach a servo post to it.

Fix the fan to the post and you will have the best possible fixing for your fan. Incredibly neat, tidy, strong and light!
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Old 11-20-2012, 10:02 PM   #24
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wow - thanks for all of the love and support guys. i just stumbled across this thread.

with nearly 500 seis fans sold this year... i think that speaks volumes.
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Old 11-20-2012, 10:36 PM   #25
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Originally Posted by Skiddins View Post
Never tried it off the battery due to being 5V.

I run it off the receiver which is 6V.
Everytime someone has pointed out how much air their fan shifts I just show them the NMB fan and they realise they wasted their money

If you can find a decent dist. instead of a model shop etc it should be pretty cheap (less than half the cost of a Much More fan here)
That fan you listed from Digi-key in the US is $11.60, I'll stick with my Much More for only $10.95 from Nexus Racing as it is smaller and easy to fit on your chassis at 25mm x 25mm.
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Old 11-21-2012, 12:30 AM   #26
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I've got the Yeah Racing tornado fan, R1 wurks fan, and the Tekin Rx8 fan. The Yeah racing is the best for cooling a motor of the ones I have. I'll be trying the seis fan once/if the Yeah racing goes out. Not impressed with the R1 wurks
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Old 11-21-2012, 02:20 AM   #27
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Originally Posted by SS LS1 View Post
That fan you listed from Digi-key in the US is $11.60, I'll stick with my Much More for only $10.95 from Nexus Racing as it is smaller and easy to fit on your chassis at 25mm x 25mm.
The 40mm is usually fitted to a heatsink, so instead of just cooling one side of the motor it is a little more even.
It will also shift a hell of a lot more air than any 25mm fan.

But if a 25mm is easier to fit for you then fine.

Skiddins

P.S. I meant less than half the price of Much More's 40mm fan, not 25mm
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Old 11-21-2012, 12:06 PM   #28
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This is the fan I use:

http://www.r1wurks.com/product.php?id_product=13
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Old 03-28-2013, 07:32 AM   #29
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Hello guys,

I got myself two strong 40mm fans to cool down my boosted 10.5t motor in the coming summer races. I plan to put one in front and one behind the motor. Now I am unsure how I should direct the airflow to the motor. Normally I have one fan blowing air towards the motor.


(ignore the motortype)

Do you think it will be more effective to have one fan blow and the other suck the air (away from motor in direction of travel) or to have both blowing towards the motor?
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Old 03-28-2013, 07:50 AM   #30
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I think two fans is overkill ... Cause if your motor is that hot your speedo will probably thermal too..

You want both blowing at the motor. Make sure they are 8mm from the motor...
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