Cardboard thermostat

[reliant_turbo]

seeing oil temps in the summer go above 240 is why i bought a sh775 regulator. help drop the temps some

Brian

[Rob S.]

...seeing oil temps in the summer go above 240 is why i bought a sh775 regulator. help drop the temps...

It's on my winter list. My mechanic has the final say.

[Nessism]

A series R/R does not appreciably reduce oil temperature. It may reduce stator temperature, but GS bikes don't have a lot of oil flowing up into the stator area so the stators effect on engine temp overall is minimal.

As an experiment I did a back to back test using the same bike, same route, same day, two different R/R's (one series), and there was no measurable difference in oil temp.

[Scout]

seeing oil temps in the summer go above 240 is why i bought a sh775 regulator. help drop the temps some

Brian

?? Could you please explain exactly how you think this is going to lower engine oil temp?

[reliant_turbo]

http://www.thegsresources.com/_forum/showthread.php?161397-Compu-Fire-SERIES-R-R-Install&p=2009372#post2009372

this is where i first saw folks talking about the series regulator keeping things cooler.

http://www.thegsresources.com/_forum/showthread.php?191795-GS-Stator&p=2012092#post2012092

this was the other location.... which Ed also poo pooed. Neither did a controlled environment scientific test like a dyno cell and controlled repeatable engine loading and controlled external temperature. Im going with the test that says it was a little cooler cause it doesnt hurt.

if the stator gets hot enough to burn itself down with a shunt regulator and doesnt burn itself down with a series, its not getting as hot.

it may be negligible for overall oil temp to some but if the stator is cooking even some of the oil that comes in contact with it, that oil has degraded and is being mixed back into the rest of the oil.

either way its not a bad thing to run.

no need to get so excited when no one controlled the test perfectly.

Brian

[Nessism]

How about a test where someone (me) ran their bike on the freeway, same day, same speed, same distance, two different R/R's, and measured oil temperature? Out and back test with two different R/R's - a SH-775 and a FH-012.

Believe what you want, but it's a suckers bet to think an R/R will reduce oil temperature. Doubly so after someone (me) did a controlled test.

[reliant_turbo]

so are you saying that chef1366's results are BS?

cause you both cant be right... or can you..... lol

Brian

[Nessism]

so are you saying that chef1366's results are BS?

cause you both cant be right... or can you..... lol

Brian

Check this thread...http://www.thegsresources.com/_forum...ffect-oil-temp

[reliant_turbo]

Check this thread...

http://www.thegsresources.com/_forum...ffect-oil-temp

yeah i still see arguing.

and i already know that the max stator dump is going to be in the 200w range vs the measured output being in the 75000 watt range for an average 1100. with gas engines being in the 25% efficiency range the actual output of the combustion process could be 4x that with much of it being wasted heat out the tailpipe and out the engine fins to the air and some to the oil. so more than likely no one measured the total heat loss via the air going over the engine and the heat out the exhaust to see how much is being shed into the oil. or out an oil cooler.

a better test would be to start with a completely cold bike on a dyno with a constant electric fan and constant load and measured with a datalogger temp vs time. and not with a 30+ year old gauge with little graduations. and stock pos r/r vs sh775.

your test could have been skewed by a headwind or tailwind on the highway. or traffic messing with air currents.

that said its fair to say that chef1366's could have been as well.

you both ran routes that you have observed conditions in the past and one observed conditions that changed and one did not.

now i will admit that a ~200w stator drastically affecting a 75,000-300,000w (or somewhere around there) combustion process seems like an unlikely outcome but there seem to be too many variables in both tests now that i look at the whole scenario.

i still like the sh775. lol

this has little to do with cardboard lol.

Brian

[reliant_turbo]

Too bad this thread has devolved into a Cluster Fk.

Neither of my GS1100E's have ever exceeded 240F. Never. Owned em both since new. Both stock......except for 2 "upgrades"....I run 115 Main jets (112.5 is stock) and Compufire RR in both. Have checked temp sender operation. Working properly. Even in 100F ambient temps running 5 to 7K RPM, indicated temps never exceed the 210 mark by more than a needle width. Gotta keep up with the Triumph Rocket III and an Aprilia Shiver (sort of) that other family members ride.......

My observation is this.....in 35K miles on one and just over 100K on the other, oil quantity is a factor...and that makes sense, doesn't it? From full line to min line, oil volume difference is over a pint. Running Rotella T or Brad Penn, each machine uses that pint in 1,500 miles. Oil temp does run from below the 210 by a needle width to a needle width and a bit when oil "low." Top it off, oil temp lower.

I am curious, really, why so many of the GS1100's here run so much warmer.

Back to regular programming.

i have the tendency to derail threads all over the internet..... oh look, a squirrel!

mine has hit around 260 or so on the factory gauge (hard to tell with no graduations from 210-320) when it was 90 out running rotella t 15-40 on a straight flat road in 5th at 60mph. stock r/r.

i dont want it that hot. ill check the mix with my wideband to see if its a little lean in the spring.

Brian

[Nessism]

yeah i still see arguing.

and i already know that the max stator dump is going to be in the 200w range vs the measured output being in the 75000 watt range for an average 1100.

A GS1000 charging system puts out about 250W. Not sure how much power is consumed but it's only the excess that's shunted back to the stator and converted to heat. 100W maybe?

[posplayr]

Some guys just have hotter engines

[wymple]

I ran an 82 GS1100EZ for several years, and never saw 230 on my temp gauge. 95* is not unusual in Iowa. With many motor oils starting thermal breakdown around 250, I'm thinking some people have funky gauges.

[Rob S.]

My cardboard thermostat wasn't damaged in the accident.