Katana of the Month – September 2008 – mreedohio
 

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Old 08-01-2007, 12:45 AM   #11
The CyberPoet
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squiggy, please keep me (us) posted on the temp differencial with the fans (i.e. - static field testing, parked on the centerstand) -- I want to know if you get the bike up to 250+ F and switch on the fans at a stand-still, will it knock the oil temp at the pan back down to 210 or lower? I'm really curious about this, and if so, may look into doing the same upgrade in the near future (I still need to fab up the brackets to mount that 750 cooler into my 600 anyway -- just the excuse I could use).

Meanwhile, unlike last year, this year I have yet to see temps in excess of 275 F or so... thank my lucky stars.

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Old 08-01-2007, 01:05 AM   #12
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Quote:
Originally Posted by The CyberPoet
squiggy, please keep me (us) posted on the temp differencial with the fans (i.e. - static field testing, parked on the centerstand) -- I want to know if you get the bike up to 250+ F and switch on the fans at a stand-still, will it knock the oil temp at the pan back down to 210 or lower?
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Will do.

I'll know more at the end of this week.
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Old 08-01-2007, 03:26 AM   #13
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So why mount the fans to pull instead of push the air ?
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Old 08-01-2007, 07:18 AM   #14
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Quote:
Originally Posted by md86
So why mount the fans to pull instead of push the air ?
I'm betting so that the fans aren't blocking air flow when they're not on. I was thinking the same thing until I finally got a look at the pics.
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Old 08-01-2007, 09:36 AM   #15
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Quote:
Originally Posted by md86
So why mount the fans to pull instead of push the air ?
The fans I used do pull air through the cooler by mounting them from behind.



Quote:
Originally Posted by brooder
Quote:
Originally Posted by md86
So why mount the fans to pull instead of push the air ?
I'm betting so that the fans aren't blocking air flow when they're not on. I was thinking the same thing until I finally got a look at the pics.
Correct. If I mounted them in front of the cooler they would cause an obstruction to the air at speed.

We discused this subject a little at the other oil cooler fan thread that I linked above.
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Old 08-01-2007, 12:02 PM   #16
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The spiking problem could probably be solved with a capacitor set up. Just like in a car-subwoofer set up, the capacitors draw a steady amount of power to charge themselves, and then if there is a significant power draw they discharge so there is no spiked load on the system. I know this isn't a 100% accurate description of a capacitors function, but hey, I'm a Mechanical Engineer not an Electrical, I like things that spin not that shock me....
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Old 04-06-2008, 04:36 PM   #17
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Short Update 4/6/08:


I've finally figured out how to wire the oil cooler fans to the neutral switch so that when I put the tranny in neutral, like at a stop light where I will be idling for awhile, the neutral switch will trigger the relay for the fans automatically.

I was lurking over at Adventure Rider, which I do frequently, and found this thread: http://www.advrider.com/forums/showt...neutral+switch about someone using the neutral switch to turn off some heated gear.

For quite awhile I was perplexed about how the neutral switch works. When I use my multimeter on the neutral switch wires I was finding that I would get a 12v signal in every gear except neutral. What I was trying to do is wire the fan relay to a 12v switched signal, which I thought would be the neutral switch. But after reading about the one person on the Adventure Rider forum, I figured I'd try and wire the relay ground to the neutral switch and voila it works.

Now I have a new master switch that will shut off power to the relay even when in neutral, like during the winter season.

First version of the Master Switch:




Second version of the Master switch:





The new master switch I bought on ebay is the updated throttle switch gear and I used the hazzard flasher switch as the master switch for the oil coolers. The wiring harness is different on my 2001 so the hazzard switch does not work as 4 way flashers.

The neutral switch wiring harness is on the left side above the foot peg.






What I did was piggyback a wire off the single BLUE wire for the relay ground.


Now there is one negative issue I have found with moving the oil cooler forward a little and that is the left (clutch) side brake line is rubbing against the cooler. It wore away the clear plastic coating on the braided lines and put some marks on the cooler itself.









In those pics I've already straightened out the bent fins. What I did to the brake line is turn it upside down from the caliper to the T connection. Now the line bends outward more than backwards. I'll see if this does any good in the future.

Last edited by squiggy; 04-06-2008 at 04:41 PM..
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Old 04-29-2008, 10:14 PM   #18
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have you noticed a difference with the fans?
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Old 04-30-2008, 12:08 AM   #19
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Nothing so far, it hasn't been hot enough.
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Old 05-06-2008, 12:45 AM   #20
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Squiggy, you might be able to reroute the brake line in such a way that it becomes a non-issue (zip-tying it off to the fork outer or some such).

Just a thought.

Cheers,
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