January 26th, 2014, 09:38 PM | #1 |
ninjette.org member
Name: Richie
Location: Oak harbor, WA
Join Date: May 2013 Motorcycle(s): 2005 FZ1. 08 DR650, 10 ninjette 250, 03 R6 (race bike) Posts: 25
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Fan on a race bike
Building a 2010 for the upcoming race season. Are you guys running fans in your bikes? Just wondering I don't have one on my R6. Thanks!
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January 26th, 2014, 09:52 PM | #2 |
ninjette.org member
Name: Non-ya
Location: Socal
Join Date: Mar 2013 Motorcycle(s): Tree Hundred Posts: 72
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I left my fan on the bike only because a buddy who took his off over heated his bike on the starting grid. It was a hot day and someone had a mishap on the sighting lap before the race. Before he realized how long he was gonna sit there the temps got to high and he missed his race.
Interested to see what others are doing but I think the temps get to high in socal to not have the fan. |
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January 26th, 2014, 09:55 PM | #3 |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
MOTY 2015, MOTM - Nov '12, Nov '13
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Many delete the fan on dedicated track machines.
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Goal: Shake A Million Hands | Look through the corners | Track Day Prep | Closest track? | The Mid-Ohio School |
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January 27th, 2014, 05:53 AM | #4 |
ninjette.org member
Name: Richie
Location: Oak harbor, WA
Join Date: May 2013 Motorcycle(s): 2005 FZ1. 08 DR650, 10 ninjette 250, 03 R6 (race bike) Posts: 25
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Thanks! It's pretty rare that the temps get warm enough up here in WA to overheat to quick haha? I might take it off. Not sure that it is enough weight to really get hung up on though.
Thanks! |
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January 27th, 2014, 06:41 AM | #5 | |
ninjette.org guru
Name: Andrew
Location: St Louis
Join Date: Sep 2013 Motorcycle(s): Ducati 1198s, Triumph D675, Suzuki SV1000s, `08 Ninja 250, `11 Ninja 250, Suzuki GS750 Posts: 368
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Quote:
Mine came off both bikes.
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MCRA.com |
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January 27th, 2014, 10:57 AM | #6 |
former ninja 250'er
Name: Geo
Location: NE Ohio
Join Date: Jan 2013 Motorcycle(s): Aprilia 1000R, CRF450, CBR600RR tracktoy, Ninja 250 -- GONE!!!!! Posts: 153
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hell i dont even have a fan on my daily driver ('00 Tundra)!
it was damaged when i bought it 5 years ago and i've never replaced it. only been an issue a handful of times since, stuck in traffic/hot day. but on a racebike, just keep an eye on the temp and if gridded longer than normal, just shut the thing off. problem solved. if you're overheating WHILE moving - you're GOING TOO SLOW! |
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January 28th, 2014, 01:44 PM | #7 |
ninjette.org member
Name: JJ
Location: USA
Join Date: Jul 2013 Motorcycle(s): 2018 Ninja 400 Race Bike (in progress...) Posts: 126
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I always take the fans off on my race bikes, never had a problem.
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January 29th, 2014, 08:13 AM | #8 |
ninjette.org member
Name: Richie
Location: Oak harbor, WA
Join Date: May 2013 Motorcycle(s): 2005 FZ1. 08 DR650, 10 ninjette 250, 03 R6 (race bike) Posts: 25
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January 29th, 2014, 08:15 AM | #9 | |
ninjette.org member
Name: Richie
Location: Oak harbor, WA
Join Date: May 2013 Motorcycle(s): 2005 FZ1. 08 DR650, 10 ninjette 250, 03 R6 (race bike) Posts: 25
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Quote:
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January 29th, 2014, 05:58 PM | #10 |
Board Member
Name: ...
Location: WI
Join Date: Dec 2011 Motorcycle(s): 250R (street), 250R (dirt) Posts: A lot.
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The issue comes in more on the cool down lap or when waiting for the flag to drop. However this should not be a big deal. Even removing it on the street would hardly be an issue depending on where you live.
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January 29th, 2014, 06:07 PM | #11 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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we run regularly above 100f temps here and most remove the fan. its not needed if you aren't going to be sitting still (i should hope you're not sitting still while racing)
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January 30th, 2014, 12:34 PM | #12 |
ninjette.org member
Name: Kyle
Location: Portland, Oregon
Join Date: Sep 2013 Motorcycle(s): 2008 Ninja 250R Posts: 106
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Convinced me to remove my fan also. But could someone enlighten me on the benefit of removing the thermostat and housing?
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January 30th, 2014, 12:59 PM | #13 | |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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Quote:
not having a smooth transition of cooling effects means that the head and cylinders get heated/cooled back and forth many times which as we know can weaken metal and causes size changes and warping if its not a consistent heating and cooling... in extreme cases you can cause fractures. the thermostat is a clay pellet valve that expands and contracts slowly so you really shouldn't get this type of issue with a working thermostat, but if you have no thermostat and go from 100mph down to 15mph and back to 100mph, the cooling going into the coolant varys drastically and since you have no thermostat to control it with, its more likely to vary temp through a wider range.. basically, unless you have a turbo and are running 19-1 compression, leave the thermostat in. or upgrade to a thermobob (bipass thermostat) even in the cases i described, the correct solution would be probably a bigger radiator, not removing the thermostat
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1 out of 1 members found this post helpful. |
January 30th, 2014, 01:04 PM | #14 | |
ninjette.org member
Name: Kyle
Location: Portland, Oregon
Join Date: Sep 2013 Motorcycle(s): 2008 Ninja 250R Posts: 106
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Quote:
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January 30th, 2014, 01:45 PM | #16 |
ninjette.org member
Name: Kyle
Location: Portland, Oregon
Join Date: Sep 2013 Motorcycle(s): 2008 Ninja 250R Posts: 106
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January 30th, 2014, 05:54 PM | #18 |
Board Member
Name: ...
Location: WI
Join Date: Dec 2011 Motorcycle(s): 250R (street), 250R (dirt) Posts: A lot.
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Leave it in.
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January 30th, 2014, 06:17 PM | #19 |
ninjette.org member
Name: Ben
Location: Cornelius, Noth Carolina
Join Date: Sep 2012 Motorcycle(s): 2010 Ninja 250R Posts: 65
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