two fans on radiators (dual fans, fan on each radiator)
09-21-2011, 08:05 PM
#31
Senior Member
SuperBike
Join Date: Mar 2007
Location: Belgium, WI
Posts: 1,611
My point is the stock cooling system was capable of handling a much larger quantity of horsepower. Has anyone had the cooling fan kick on and the temperature continued to rise uncontrolled? And what were the temperatures during this incident.
09-21-2011, 08:10 PM
#32
Senior Member
MotoGP
Join Date: Jul 2010
Location: Phoenix, AZ
Posts: 3,869
I know, I'm just joking around at this point... I totally agree with what you pointed out. Oil cooler jammed between the exhaust and front cylinder head and no problems with a build engine? No extra fan? Seems like pretty good assurance to me!
Now, what I want next is a window on my water pump cover so I can see the colored coolant flowing through... and probably some LED's inside so it glows. I'm doing it. Starting tomorrow.
Now, what I want next is a window on my water pump cover so I can see the colored coolant flowing through... and probably some LED's inside so it glows. I'm doing it. Starting tomorrow.
09-21-2011, 08:13 PM
#33
Senior Member
SuperBike
Join Date: Mar 2007
Location: Belgium, WI
Posts: 1,611
The one thing that they had that most of us dont is they ran water with a surfactant, I would assume, as coolant is not allowed on track. If I lived in a hot environment, that is what I would do. It is good for many degrees of help, and there is NO reason to run coolant in AZ during the summer
09-21-2011, 08:16 PM
#34
Senior Member
MotoGP
Join Date: Jul 2007
Location: NYC
Posts: 5,033
Yeah 100mph of air is a little cooler than rush hour. I had a friend who race the superhawk & used the HRC RC51 kit. It included a huge front radiator.
7moore; why do you care about changing the fans for winter, they hardly are needed in cooler temps so why change it? Oh and green is a weird color to like.
7moore; why do you care about changing the fans for winter, they hardly are needed in cooler temps so why change it? Oh and green is a weird color to like.
09-21-2011, 08:19 PM
#35
Banned
MotoGP
Join Date: Aug 2007
Location: Lake View Terrace, CA
Posts: 5,942
http://www.spondonownersclub.co.uk/i...esbikes/18.jpg
Did HRC have cooling problems? Heck, it looks like the same oil cooler.
Did HRC have cooling problems? Heck, it looks like the same oil cooler.
09-21-2011, 08:28 PM
#36
Senior Member
MotoGP
Join Date: Jul 2010
Location: Phoenix, AZ
Posts: 3,869
With the undertail rad, I wanted the bike to survive as long as possible without overheating. So I changed the fan switch to kick in earlier so that it would at least lengthen my time on the road for a commute in the Tempe heat for the summer. I did this thinking that if it were going to overheat, at least it may survive the commute (b/c riding for sport just isn't really that enticing in the summer).
Well, in my paranoia, I slightly compromised the optimum motor temp and electrical system. It turns out, the fans regulate the temp well enough... I never saw it go above 230*F except a couple of isolated incidents (235), and they are now on too often. I would like them to switch off at stock temp rather than 185 so that my fans aren't running full bore all the time. It's more of a little test... either way it's really just fine tuning Kai ju's setup. Also, I haven't run this rad in cooler temps yet, so still it's still a little unknown how much cooling will be needed...
And Mike, I didn't realize there was a third cooler... is it just wedged between the two stock ones?
09-21-2011, 09:07 PM
#38
Banned
MotoGP
Join Date: Aug 2007
Location: Lake View Terrace, CA
Posts: 5,942
10-15-2011, 09:18 PM
#40
haha yeah
Squid
Thread Starter
Join Date: Oct 2010
Location: 45min SE Orlando
Posts: 69
anyone ever had experience with using an adapter like this?
http://d3d71ba2asa5oz.cloudfront.net...leradapter.jpg
and utilize it to mount a secondary oil cooler, keeping the original intact?
http://d3d71ba2asa5oz.cloudfront.net...leradapter.jpg
and utilize it to mount a secondary oil cooler, keeping the original intact?
10-16-2011, 11:07 PM
#42
Senior Member
MotoGP
Join Date: Mar 2007
Location: Phoenix, AZ
Posts: 3,132
If you are overheating, you need to flush and fix your stock system.
My bike running clean coolant (60% water 40% antifreeze +water wetter) and a stock cooling system never overheated even on 125+ degree AZ days in stop and go traffic. Sure the fan ran a lot, but it never caused any other issue. And with the stock system the R/R and stator will be fine keeping up with the electrical draw. (assuming your electrics are working right)
My bike running clean coolant (60% water 40% antifreeze +water wetter) and a stock cooling system never overheated even on 125+ degree AZ days in stop and go traffic. Sure the fan ran a lot, but it never caused any other issue. And with the stock system the R/R and stator will be fine keeping up with the electrical draw. (assuming your electrics are working right)
10-17-2011, 10:45 AM
#43
haha yeah
Squid
Thread Starter
Join Date: Oct 2010
Location: 45min SE Orlando
Posts: 69
already flushed and have a Spal fan running engineice.
gauge never goes more than a hair above half on hot humid florida days
cooler is better and less fluctuation in temperature, as discussed above, is better.
gauge never goes more than a hair above half on hot humid florida days
cooler is better and less fluctuation in temperature, as discussed above, is better.
10-17-2011, 11:23 PM
#44
Senior Member
Superstock
Join Date: Jan 2011
Location: Santa Clara, CA
Posts: 258
This is essentially the DRP mod for older V4s.
It can work, I don't remember our specific thread pitch, but yes, you can do it.
I think in terms of cost v. benefit, mikstr found that the RC-51 (iirc) and the same component on an atv were the same and did the same thing with less weight and less cost.
It can work, I don't remember our specific thread pitch, but yes, you can do it.
I think in terms of cost v. benefit, mikstr found that the RC-51 (iirc) and the same component on an atv were the same and did the same thing with less weight and less cost.
10-18-2011, 05:39 PM
#45
Senior Member
SuperBike
Join Date: Mar 2007
Location: Belgium, WI
Posts: 1,611
10-18-2011, 05:56 PM
#46
Senior Member
MotoGP
Join Date: Jul 2010
Location: Phoenix, AZ
Posts: 3,869
Otherwise, our bikes wouldn't need a choke and our friends in in Canada would have faster bikes.
F1 cars won't even turn over at standard air temp. They have to pump heated water through them in the pits so the tolerances will all work together.
10-19-2011, 08:57 AM
#49
Out of my mind, back in 5
MotoGP
Join Date: Nov 2006
Location: Skurup, Sweden
Posts: 6,109
Actually, given a bunch of parameters, you can calculate the running temperature where an engine will be happy... I'm too darned lazy to even begin spelling it out for the people that don't know, autoteach and a couple of others will know what I'm talking about... And with a couple of them known, and a couple of others guesstimated, the temperature range where the VTR will give you the best performance is roughly 190-200 F coolant temperature, ie a tad below where the fan cycles... So trying to run it down a good bit below that will gain nothing...
10-29-2011, 06:14 PM
#50
Senior Member
SuperSport
Join Date: Mar 2010
Location: Asheville, North Carolina
Posts: 949
I have read this thread at least 6 times. And IMOP the oil cooler is the way to go...
Just installed a SP1 cooler on the 2001 S-hawk.. Got to do a little more to mounting the cooler. Yet if it goes the way planned- You will not know it ain't OEM...
Just installed a SP1 cooler on the 2001 S-hawk.. Got to do a little more to mounting the cooler. Yet if it goes the way planned- You will not know it ain't OEM...
11-08-2011, 02:22 PM
#51
aka tony.mon, vtr1000.org
Squid
Join Date: Mar 2009
Posts: 45
But yes, it looks like it was originally designed that way.
Thread
Thread Starter
Forum
Replies
Last Post
captainchaos
Classifieds
7
02-05-2013 09:10 AM
