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Author Topic: Let's Talk RPM's  (Read 8373 times)

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DESERTBEAR54

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Let's Talk RPM's
« on: March 18, 2011, 11:59:04 AM »
Since I got BLUU back with my 3rd motor I am very conscious about my RPM's and not loading the engine. I keep my RPM's between 2800-3200 in all gears except 6th without going over redline. I never let it drop below 2500 without down shifting. It just seems to me that the motor is working way to hard at 3000 -3200?? All I can say is this new motor is putting out power that I have never seen in the last two CVO's Ive owned. No more clacking/piston slap in this 3rd motor.Whatever they did it dropped my fuel milage but I dont care because it is running awesome!! I guess the Arizona summer will tell the tale!!
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110tHunDer

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Re: Let's Talk RPM's
« Reply #1 on: March 18, 2011, 12:04:09 PM »
 
Are you saying you only use 700 rpm? :nixweiss: :shocked2:

3,000 - 3,200 is interstate cruising RPM for most of us, I would suspect.  I don't get the feeling that my 103 is working too hard in that range, but then again, it regularly sees redline, too, so it may all be relative.
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DESERTBEAR54

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Re: Let's Talk RPM's
« Reply #2 on: March 18, 2011, 12:27:50 PM »
No I keep my RPM's in all gears between 2800-3200 and if it falls below 2500 rpm I downshift and hold the motor at 3000 rpm until I can upshift to keep the motor between 2800-3000 rpms. 1st gear,2nd gear at 2800-3000 rpms seems like I'm really winding the motor but I don't want to load up the motor. Harley has stated that is the worst thing you can do to a twin cam.
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Midnight Rider

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Re: Let's Talk RPM's
« Reply #3 on: March 18, 2011, 12:38:28 PM »
Lugging the motor IS the worst thing you can do, but I personally don't think that happens until you drop below 2,000 RPM on flat ground.  There are exceptions to every rule, and I always downshift if I needed more throttle at 2K to climb a hill or something.  90% of the time, the bike never sees below 2500, but once broken in, will see 4-5500 pretty often.  3K is cruising speed in 6th gear, conditions permitting.  My 103, with the 5 speed, stayed at 3K or more a LOT of the time.

I've been known to hit the rev limiter a few times as well... ::)
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GregKhougaz

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Re: Let's Talk RPM's
« Reply #4 on: March 18, 2011, 12:44:32 PM »
DESERTBEAR54,

     May I assume you are talking about a stock 110"?  There are others here who know far more than I but the stock 255 cam is certainly a "low end" cam.  I think where one keeps rpm's is a function of riding style, total weight and where the motor feels good.  If it works for you between 2800 & 3200, great!  I have the Andrews 54h and can shift at 2500.  But it's a LOT more fun to shift at 5000 (though usually between 3-4000).  Redline is now 6250.  Agree that lugging is bad... very bad.   :nervous:

GK
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DESERTBEAR54

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Re: Let's Talk RPM's
« Reply #5 on: March 18, 2011, 12:52:49 PM »
Being that I am on my 3rd stock motor I am alittle gun shy of operating it without it crapping out. This time my local dealer did something different but wont tell me and this motor is running extremly well. I'm sure they will tell me that being that it has Syn 3 in it that is why it broke in correctly and is running the way it is suppose to. Oh well I will enjoy it while I can!!
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110tHunDer

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Re: Let's Talk RPM's
« Reply #6 on: March 18, 2011, 01:05:22 PM »
Quote from: DESERTBEAR54 on March 18, 2011, 12:52:49 PM
Being that I am on my 3rd stock motor I am alittle gun shy of operating it without it crapping out. This time my local dealer did something different but wont tell me and this motor is running extremly well. I'm sure they will tell me that being that it has Syn 3 in it that is why it broke in correctly and is running the way it is suppose to. Oh well I will enjoy it while I can!!

LOL.  I don't envy you feeling like you need to be careful of how you ride. :nervous:  That would suck some of the fun out of it, for sure.  But I'm glad to hear you hear and feel a difference this time.  Hopefully, you'll gain some confidence in the rebuild and can eventually ride without worrying!
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DESERTBEAR54

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Re: Let's Talk RPM's
« Reply #7 on: March 18, 2011, 01:14:49 PM »
That a Big 10/4!! :2vrolijk_21: This summer in AZ and trip to New Mexico will ease the worries if BLUU keeps running like it is now!!
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1sharprdkg

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Re: Let's Talk RPM's
« Reply #8 on: March 18, 2011, 01:30:17 PM »
So you think that you had the misfortune of getting two bad 110 motors back to back or your riding style of the past was to much abuse for the 110's to take? I agree lugging is bad very bad. When my wife first started riding that was one thing I was always screaming at her "DOWNSHIFT","DOWNSHIFT." She finally caught on! lol   Good luck with motor number three.
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grc

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Re: Let's Talk RPM's
« Reply #9 on: March 18, 2011, 01:54:52 PM »

Come on folks, don't start drinking the Harley Kool-Aid again.  The fairly numerous 110 failures (and the TC96 failures you don't hear about much on this site) weren't caused by people running their engines below 2500 rpm or over 3500 rpm.  Anyone who really believes that needs to sign up for a remedial Engines 101 course at the local trade school.

Some people beat the snot out of their CVO from the day they picked it up, and haven't had even one replacement engine.  And others just rode normally and have had two or three engines in less than two years.  It's all about the sorry state of affairs at H-D, not about babying the engine and keeping it in a narrow rpm band to make it last. 

True "lugging" of the engine is not necessarily defined strictly by rpm, btw.  It's more of a function of load versus rpm, as in heavy load at low rpm.  Cruising normally down a flat road at 1800 rpm is not lugging.  Doing so and then whacking the throttle open without downshifting to an appropriate gear, now that's lugging.

'bear, I understand being gun shy after all you've been through, but don't let it ruin your enjoyment of the ride.  Your problems weren't caused by your choice of oils, and they weren't caused by the way you ride.  They were caused by the folks at H-D who cheapened the crap out of the product and decided to accept poor quality from themselves and their vendors.  And now they want to get into your head and make you think it was all your fault.  Don't fall for it.


Jerry 
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Re: Let's Talk RPM's
« Reply #10 on: March 18, 2011, 01:59:35 PM »
How were you riding before?  I could never ride in an rpm range of only 400.  Is that just for the break in?

Is it possible that the dealership finally got the right flash in it??
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Re: Let's Talk RPM's
« Reply #11 on: March 18, 2011, 02:59:55 PM »
I lug the heck out of mine then i run at the rev limiter for awhile-thats the fun of it :bananarock:
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110tHunDer

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Re: Let's Talk RPM's
« Reply #12 on: March 18, 2011, 05:01:06 PM »
Quote from: VANAMAL on March 18, 2011, 02:59:55 PM
I lug the heck out of mine then i run at the rev limiter for awhile-thats the fun of it :bananarock:

 :huepfenlol2: :huepfenlol2: :huepfenlol2:
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ultrafxr

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Re: Let's Talk RPM's
« Reply #13 on: March 18, 2011, 07:34:02 PM »
I agree with Jerry's comments.  I'll run mine at whatever rpm it needs but when cruising on a (fairly) level road I'll keep it to no more than 2,500.  It is just a lot less busy and noisy there.  2,000 is about my floor on how low I will go.
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Re: Let's Talk RPM's
« Reply #14 on: March 18, 2011, 07:43:07 PM »
Quote from: grc on March 18, 2011, 01:54:52 PM
Come on folks, don't start drinking the Harley Kool-Aid again.  The fairly numerous 110 failures (and the TC96 failures you don't hear about much on this site) weren't caused by people running their engines below 2500 rpm or over 3500 rpm.  Anyone who really believes that needs to sign up for a remedial Engines 101 course at the local trade school.

Some people beat the snot out of their CVO from the day they picked it up, and haven't had even one replacement engine.  And others just rode normally and have had two or three engines in less than two years.  It's all about the sorry state of affairs at H-D, not about babying the engine and keeping it in a narrow rpm band to make it last. 

True "lugging" of the engine is not necessarily defined strictly by rpm, btw.  It's more of a function of load versus rpm, as in heavy load at low rpm.  Cruising normally down a flat road at 1800 rpm is not lugging.  Doing so and then whacking the throttle open without downshifting to an appropriate gear, now that's lugging.

'bear, I understand being gun shy after all you've been through, but don't let it ruin your enjoyment of the ride.  Your problems weren't caused by your choice of oils, and they weren't caused by the way you ride.  They were caused by the folks at H-D who cheapened the crap out of the product and decided to accept poor quality from themselves and their vendors.  And now they want to get into your head and make you think it was all your fault.  Don't fall for it.


Jerry 

       Ahhhhhhhhhhh Jerry, so good to sit and read a post of this quality from you again. You had a run where I thought you were giving up on being the best technical poster on cvoharley.com. It's great to see the real Jerry back  :2vrolijk_21:

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