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Oil Cooler Effectiveness

  • Thread starter Thread starter x01660
  • Start date Start date
posplayr said:
Ed,
I'm baffled by this question. :confused:

How do you think stators turn into crispy critters?

Jim
Click to expand...


Jim,
Obviously, the stator gets hot under some conditions. I'm not clear when that occurs though. When the charging circuit wiring corrodes maybe, and increases in resistance? Even if the stator is getting hot, is the small amount of splash lubrication that comes in contact with the stator sufficient to increase the entire sump oil temperature 30F? Maybe on your bike with an oil jet spraying oil on the stator, but what about a normal bike?
 
The stator is attached to a rather significant heat sink I.E. the engine cases.
The heat from the stator would most certainly be carried off to the engines cases and then to the oil.

Anyone have a fancy camera that shows heat via infra red?
 
Nessism said:
Jim,
Obviously, the stator gets hot under some conditions. I'm not clear when that occurs though. When the charging circuit wiring corrodes maybe, and increases in resistance? Even if the stator is getting hot, is the small amount of splash lubrication that comes in contact with the stator sufficient to increase the entire sump oil temperature 30F? Maybe on your bike with an oil jet spraying oil on the stator, but what about a normal bike?
Click to expand...

So you think that a stator getting hot and getting crispy is a malfunction and not a normal "design feature"?

Please pray tell, what malfunction would cause a stator to get hotter than it would under normal conditions?
 
JEEPRUSTY said:
The stator is attached to a rather significant heat sink I.E. the engine cases.
The heat from the stator would most certainly be carried off to the engines cases and then to the oil.

Anyone have a fancy camera that shows heat via infra red?
Click to expand...

It has been documented and posted in several places. Do a google search for Compufire. I think there is even a link under my Compufire install thread.
 
posplayr said:
It has been documented and posted in several places. Do a google search for Compufire. I think there is even a link under my Compufire install thread.
Click to expand...

I bet an infrared scan would show the stator cover as being hotter than everything but the cylinders and exhaust.
 
JEEPRUSTY said:
I bet an infrared scan would show the stator cover as being hotter than everything but the cylinders and exhaust.
Click to expand...

The data if available for your review. :)


Edited 2/5/2014
An interesting thread discussing Compufire and SH-775 Series R/R's. It appears that in comparable tests the SH-775 gets hotter for high current applications and it was also noticed at high RPM for (16K RPM) there was one instance over voltage break down in regulation reported on the SH-775. Not likely an issue with any GS's around here.

http://www.vstrom.info/Smf/index.php/topic,20426.0.html
Vstrom Discussion of SH-775 and Compufire Series R/Rs

HIGHLY RECOMMENDED FOR A Warm Running 16V GS1100/1150. For you naysayers out there. There is a significant temperature drop if you are running stock in the 250-270 degF range (My 1166 went down to 210-220 degF max).

Aprilla but shows back to back temperature drops

UPDATE; Wheat dog has confirmed a nominal 30 degF drop in operating temp for an 83 GS1100ED with 1166 kit after making this change over to the Compufire-Fire R/R
Installed Compufire RR - Way Cool!!
Click to expand...
 
OMG all this talk, Just bolt a huge sucker of a cooler on and forget about oil temps.



 
tkent02 said:
Except for the oil cooler.
Click to expand...

Gee im really sorry suzuki put the oil cooler outlet behind the barrel and not down below like a GSX1100. Yes its "not clean" but as for a effective cooler both lines are short as possable and its not that out of place. Take not, there isnt anything on there that dont have to be to make that bike faster than standard. No bling, no chicken strips and surely no pi##ie cooler that wont cool a engine in that tune in aussie weather.
 
sharpy said:
Gee im really sorry suzuki put the oil cooler outlet behind the barrel and not down below like a GSX1100. Yes its "not clean" but as for a effective cooler both lines are short as possable and its not that out of place. Take not, there isnt anything on there that dont have to be to make that bike faster than standard. No bling, no chicken strips and surely no pi##ie cooler that wont cool a engine in that tune in aussie weather.
Click to expand...

I have seen enough pictures of classic 8V bikes with oil cooler, that it reminds me of a samurai sword. Very nice an clean. :)
 
sharpy said:
Gee im really sorry suzuki put the oil cooler outlet behind the barrel and not down below like a GSX1100. Yes its "not clean" but as for a effective cooler both lines are short as possable and its not that out of place. Take not, there isnt anything on there that dont have to be to make that bike faster than standard. No bling, no chicken strips and surely no pi##ie cooler that wont cool a engine in that tune in aussie weather.
Click to expand...

Hey Sharpy, what cooler is that?? I've been looking to get one on my GS750 for a while now but can't find anything suitable that isn't outrageously priced! :(
 
Oil coolers are not recommended for the 16 valve GS750s with plain (friction) bearings. Issues with losing some oil pressure which would not be good for the cams nor the crank shaft bearings. Not sure the shimming of the oil pressure relief value would over come the loss of pressure with an oil cooler on these particular bikes.
 
???
Don't the Air/Oil GSXR have a BIG cooler? And the new water engines also have small oil coolers.
G
 
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