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[mjb765]

OH NO---Not another engine heat post--hear me out before you quit reading. I need an opinion and around here I know I will get a few...2011 SESG with an 09 catless headpipe, Rinehart slip-ons and a Revolution Performance EMS. Just switched over to straight 50 wt oil to try to quiet the motor a bit. 85 degrees oustisde and I just went for a 1/2 hr ride on the highway between 70-80 mph with no traffic at all. Got off and checked the oil temp at the dipstick and got 258 degrees. seems kind of hot to me. Last week I spoke to the guys at Rev Perf and found that when they program an ECM they set the AFR to about 14.1 so that it maintains some decent gas mileage.

This brings me to my questions-----258 degrees seems kind of hot--correct? And if I remeber correctly my last bike with the TTS the AFR was around 13.5 which would make things run richer--and cooler. OK--time for all of your opinions........

Thanks for letting me rant.......

Mike

[SBB]

OH NO---Not another engine heat post--hear me out before you quit reading. I need an opinion and around here I know I will get a few...2011 SESG with an 09 catless headpipe, Rinehart slip-ons and a Revolution Performance EMS. Just switched over to straight 50 wt oil to try to quiet the motor a bit. 85 degrees oustisde and I just went for a 1/2 hr ride on the highway between 70-80 mph with no traffic at all. Got off and checked the oil temp at the dipstick and got 258 degrees. seems kind of hot to me. Last week I spoke to the guys at Rev Perf and found that when they program an ECM they set the AFR to about 14.1 so that it maintains some decent gas mileage.

This brings me to my questions-----258 degrees seems kind of hot--correct? And if I remeber correctly my last bike with the TTS the AFR was around 13.5 which would make things run richer--and cooler. OK--time for all of your opinions........

Thanks for letting me rant.......

Mike

My question is why would you run straight 50 wt. oil in your bike?
Dino or synthetic and what brand?

 

SBB

[mjb765]

My question is why would you run straight 50 wt. oil in your bike?
Dino or synthetic and what brand?

 

SBB

Been hearing a lot of recommendations to run it to try to quiet the motor a bit--and it did get a little better. Harley SAE 50 Dino. I even checked the service maunal at it says for over 60 degrees ambient temp you can run it. Definitely hot enough around here lately to try it.

[1sharprdkg]

[quote author=mjb765 link=topic=65483.msg914950#msg914950 date=13127433 n hearing a lot of recommendations to run it to try to quiet the motor a bit--and it did get a little better. Harley SAE 50 Dino. I even checked the service maunal at it says for over 60 degrees ambient temp you can run it. Definitely hot enough around here lately to try it.
[/quote]Curious what brand oil were you running before you changed to the Harley SAE 50 Dino oil? Seems to me that if your engine or upper valve train area is that loud maybe there is some mechanical problem that no oil is going to correct...

[Midnight Rider]

258 degrees is not all that hot, from my limited experience on the 110.  I've seen mine at 268, running 20W50 Redline Synthetic.  This is reading it on the LCD dipstick on a 90 degree day, two up, loaded.

I've read the same things about straight 50W Dino oil, but I'm sticking with the 20W50 Synthetic.  I just don't trust the Dino oil to hold up as well to the hot temps, and it breaks down faster, particularly when it gets really hot.  That's a fact.  Whether it gets hot enough to break down is a matter for debate, but I prefer the insurance of Synthetic in the air cooled motor.

[mjb765]

I've had several people listen to it and all I get is the standard answer--yeah they are all that noisey. I was running 20/50 Redline before and I was going to go to 20/60 and see if that helps, but figured I would try this first. I was surprised to see it listed in the specs in the manual. It did help with the noise, but the temps seem kind of high to me. Does anybody have a dyno printout with the AFR reading at the bottom? I think 14.1 is still too lean.

[Midnight Rider]

13.5 accross the board would help cool the motor some...how much...I'm not sure that's easily quantified.  14.7 is the "ideal" A/F ratio for complete combustion, but that's definitely too lean for these motors.  14:1 is not unreasonable, IMO.

I don't know for sure, but I think the TTS canned map is set up around the 14:1 number.

[ultrafxr]

Ask Carl Hubbard.  I think he is a dino oil fan. 

[tennisman]

Boys O Boys....I would NOT run dino oil in an engine that the factory says synthetic.  The oil temp you read is NOT the max surface temp the oil will see.  These 110s run HOT and dino oil can't take the high temp that a syn can.
Do yourself a favor and get syn oil back in.
And yeah, 110s are noisey, especially after they heat up.
And, clean the oil cooler fins, I let mine get the bottom two rows clogged with road grit/dirt....cleaned them out and oil temp peaks are down 5-10 degrees.
T

[SBB]

Been hearing a lot of recommendations to run it to try to quiet the motor a bit--and it did get a little better. Harley SAE 50 Dino. I even checked the service maunal at it says for over 60 degrees ambient temp you can run it. Definitely hot enough around here lately to try it.

Mike I have to wonder.
You changed from the Fullsac to Rinehart's for a louder sound but now your changing oil to make the motor quiet.
110's are noisy and if the Redline doesn't give you what your looking for then nothing else will.

SBB

[mjb765]

Mike I have to wonder.
You changed from the Fullsac to Rinehart's for a louder sound but now your changing oil to make the motor quiet.
110's are noisy and if the Redline doesn't give you what your looking for then nothing else will.

SBB

Funny Chip.....I could just drain all the oil out and I'm sure it will get even louder----for a short period of time

I will run this for a little while and then I will put the Redline 20/60 in.

Now back on topic---the original issue was that I thought it was running too hot. I may call Rev Perf and see about sending the ECM back and having them richen up the target AFR. My '10 SESG didn't run as hot as the '11. But I also remember my '10 running around 13.5 AFR when it was dyno'ed.

[SBB]

then I will put the Redline 20/60 in.

Now your on the right track.


SBB

[mjb765]

Now your on the right track.


SBB

On the right track....not really sure since I was looking to see if my oil temp was too high since I feel this thing is running too hot. Going back to the 20/60 is not going to lower oil temps--in fact it may run a little hotter......yes--the oil can take the higher temp since it's synthetic, but that wasn't really the issue.

My original question was looking to see what a good target AFR would be so that I could cool this bike down a bit. This one seems to run waaay hotter than my 2010 and the only difference is the headpipe and the tuner.

Did you get your bike dyno'ed?  Did they give you the printout with the AFR's on the bottom?? Just curious what you are running at.

[strokerjlk]

The Afr graph at the bottom of the dyno sheet only tells you what your AFR is@  WOT.
So you need to know what your Afr is at cruise.
running a tts canned map with no tuning,who knows what your actual afr was. It would have a 14:7. target since it would be closed loop.
if you have an actual cruise afr of 14.1now with R/P that should be rich en ought. Kinda hard to tell your actual afr unless you have it checked. With your symptoms, I doubt you have 14:1 actual. If you are getting really good fuel mileage, it is leaner than 14:1
your oil.....run straight 60 dino if you want. Running one qt of straight 70 and two qts of straight 60 in my 120.

[Twolanerider]

MJ, you can monitor your AFR in real time or in recorded sessions with that Twin Tec II scan tool.  Unlike a lot of dyno tunes that set a flat AFR everywhere your EMS will have the AFR varied for different engine conditions.  That is a far better method for real world riding.  Play with the tool a bit and you'll know both what you've got and where/when you've got it.