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CVO Technical => General CVO discussion => Topic started by: LMR on August 27, 2017, 04:11:28 PM

Title: Bike hit a wall in 4,5 and 6th
Post by: LMR on August 27, 2017, 04:11:28 PM
At a thou miles I finally opened her up. I had my wife on the back and went through the gears at redline. It felt like it lost steam in the top 3 gears. What's up with that? We're both heavy, so am wondering if clutch spring is suspect. Bike is bone stock.
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: GregKhougaz on August 27, 2017, 04:34:27 PM
Help us help you by giving more details. I checked your posts and see you have a 2016 CVO Limited. I presume stock. How much is do you and your wife weigh together? (Don't give us her weight, individually if you know what is good for you.   :huepfenlol2: )  If the bike is running well, I think you should surely be able to hit rev limiter in fourth gear.  So, Any sounds? Stuttering? Other observations?   
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: JCZ on August 27, 2017, 05:06:29 PM
Lost steam?  Did you hit the rev limiter?
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: LMR on August 27, 2017, 06:44:49 PM
We are probably over the five hundred mark. Fourth hit the redline and I shifted but the bike struggled to get there never hit redline in fifth and in sixth, it just stayed where it was. I never hit the rev limiter. It felt like it just ran out of torque. I can't hear too good but thought I heard a rattle and not like a knock or ping.
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: grc on August 27, 2017, 08:00:44 PM
We are probably over the five hundred mark. Fourth hit the redline and I shifted but the bike struggled to get there never hit redline in fifth and in sixth, it just stayed where it was. I never hit the rev limiter. It felt like it just ran out of torque. I can't hear too good but thought I heard a rattle and not like a knock or ping.

I seem to remember something about Harley adding a form of governor that limits speed to around 110 mph, so there is a rev limiter AND a speed limiter.  I'm not sure if that applies to your particular bike or not, I'll try to figure it out.

Jerry
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: grc on August 27, 2017, 08:06:19 PM

OK, if you have a 2017 then there is both a rpm and a speed limiter.  I just assumed you were talking about a 2017 since you mentioned having about 500 miles.  As best I can tell a 2016 did not have the speed limiter.

Jerry
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: JCZ on August 27, 2017, 10:11:51 PM
Jerry, that 110 mph......is that by the Harley speedometer or true 110 mph by gps?  My speedometer says I'm doing about 117-118 mph when my gps says I'm doing 110 mph.  I've heard of this speed limiter thing on the new bikes several times now.  It will not be long until somebody figures out a way of removing the speed limiter.

Seems like the speedometer is pretty accurate to about 65 mph and then it gradually errors to the negative (says I'm going faster than my gps).  We all know how unreliable and inaccurate all the Harley guages are.  :nixweiss:
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: CAmike on August 28, 2017, 01:41:15 AM
I was getting on the freeway and redlined it in 4th gear. The engine seemed to lose power and I thought I blew something. After about 30 seconds the power came back. Mechanic said it was most likely the rev limiter. He didn't find anything wrong with the engine.
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: LMR on August 28, 2017, 08:08:21 AM
The bike is a 2016. To tell the truth, I never even looked at the speedometer.
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: rigidthumper on August 29, 2017, 12:11:44 PM
Stock bikes struggle to exceed the century mark fully loaded.
Any good flash tuner can over ride the speed limiter.
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: Unbalanced on August 29, 2017, 12:29:24 PM
Could be rev limiter, but have never had it take 30 seconds to return power.  A couple of seconds sure, but no where near 30 seconds.   :nixweiss:
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: LMR on August 30, 2017, 10:53:25 AM
 Well I am waiting on parts now. I bought woods 777 cams, hylift lifters, fullsac head pipes and a 2" muffler insert. Power vision for a controller.
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: coloradotom on August 30, 2017, 11:20:27 AM
You shouldn't be shifting at redline to begin with. All that does is slow you down. You should be shifting right around your max power point, and you get that info from a dyno. The only time you should ever come close to red line is wide open in top gear at top speed. If you're gonna ride it like a race bike you should know how to ride a race bike.
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: LMR on August 30, 2017, 09:39:46 PM
Well I find that very condescending. I wanted to see what my bike could do after giving it a break in and you tell me I should not redline it. I will have to go back and ask the dealer where my dyno  chart is so I can properly use half the rpm scale. I wasn't trying to do a land speed run. I am however disappointed in the stock engines performance.
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: grc on August 30, 2017, 10:46:24 PM

The stock 110 engine is set up for low to midrange torque, and due to the cams more than anything else the torque and power fall off rapidly over 4000 rpm.  Compared to the engines that preceded the 110, like the CVO103, the 110 is much better suited to hauling around a heavy touring bike loaded with people and gear.  Many of us with the 103's complained of the opposite problem, lack of bottom end torque.  Better cam choices from the aftermarket these days can help you keep the low end of the stock 110 and also extend the useful rpm range for better top end power.  Stock is a compromise at best, one that attempts to make the ever heavier bikes pull better on the low end as well as meet emissions regulations.  If stock doesn't suit you, find a good engine builder/tuner and have yours modified to fit your riding style. 

Jerry
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: CVODON on August 30, 2017, 11:23:23 PM
Colorado Tom, TOTALLY disagree with you. Driven race cars & bikes. people using your approach have repeatable et's But are slow. Real
racers leave line at redline & shift just at peak.
110's are still pulling at 5500, bike is still accelerating & unless u have changed redline u have to shift then due to factory redline & corresponding shutdown. People who shift at 4200 or some other arbitrary number for torque peak, are just slow.
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: LMR on August 31, 2017, 09:29:58 AM
Where this will affect me is planning to get a sidecar. If I choose to pass anyone, I have to stay within the 2000-3500 rpm range. If a hill is factored in, it sucks. Sure I could get going from a standstill nice but what if behind a slow vehicle on a secondary road?
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: xupd42bmg on August 31, 2017, 09:44:03 AM
I've got a 2016 as well. Me and my lady probably total about 370lb. I had no problem doing 120mph and that is were it shut down at. But mine is a road glide and everyone knows road glides are the fastest bike ;D
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: 110tHunDer on August 31, 2017, 09:44:39 AM
Most Harley guys probably never see 4200.   ::)
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: coloradotom on August 31, 2017, 10:46:52 AM
Colorado Tom, TOTALLY disagree with you. Driven race cars & bikes. people using your approach have repeatable et's But are slow. Real
racers leave line at redline & shift just at peak.
110's are still pulling at 5500, bike is still accelerating & unless u have changed redline u have to shift then due to factory redline & corresponding shutdown. People who shift at 4200 or some other arbitrary number for torque peak, are just slow.

If you shift at redline, say thats 6k and power peaks at 4k, all you are accomplishing is wasting time running at non-peak power. And obviousy they will accelerate, just not at max acceleration since you're leaving HP behind. I'll run it the right way, you run yours, and enjoy the view of my taillight.
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: coloradotom on August 31, 2017, 10:48:53 AM
Well I find that very condescending. I wanted to see what my bike could do after giving it a break in and you tell me I should not redline it. I will have to go back and ask the dealer where my dyno  chart is so I can properly use half the rpm scale. I wasn't trying to do a land speed run. I am however disappointed in the stock engines performance.

Didn't mean to offend. You're obviously trying to get the most out of the motor. The way you were going about it would not accomplish your goals.
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: FLSTFI Dave on September 05, 2017, 08:05:39 AM
On the 2017 bikes the speed limiter is 107 MPH.  It will limit it in any gear it is capable of reaching 107.  There is also an RPM limiter.

The TTS tuner has the ability to remove both.
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: FlaHeatWave on September 05, 2017, 09:04:46 PM
The stock 110 engine is set up for low to midrange torque, and due to the cams more than anything else the torque and power fall off rapidly over 4000 rpm.  Compared to the engines that preceded the 110, like the CVO103, the 110 is much better suited to hauling around a heavy touring bike loaded with people and gear.  Many of us with the 103's complained of the opposite problem, lack of bottom end torque.  Better cam choices from the aftermarket these days can help you keep the low end of the stock 110 and also extend the useful rpm range for better top end power.  Stock is a compromise at best, one that attempts to make the ever heavier bikes pull better on the low end as well as meet emissions regulations.  If stock doesn't suit you, find a good engine builder/tuner and have yours modified to fit your riding style. 

Jerry

As usual, Jerry's got it right :2vrolijk_21:

My Bone Stock (mufflers too :huepfenlol2:) '05 SEEG CVO 103 will smoke a stock 110, especially on top end where the little 103 just keeps on revving to put the Bike way past the Pin :coolblue:

My '09 SERG 110 (Pipe/Muffs/Tuner) was quickest when shifted around 4200 as the Torque Curve fell off of a ledge around 4k... 'Trying every trick in the book, the 110 was out of breath at 110mph (indicated) and all in around 112 or so...

Major Tom's '15 CVORGU 110 seemed to have more power a little higher up (than the pre-Rushmores), but I didn't have the opportunity to Run the Ton when I was puttin' the spurs to her ;D

It's the 255 "school bus" emissions cams... more "flexibility" with aftermarket...




 
Title: Re: Bike hit a wall in 4,5 and 6th
Post by: LMR on September 19, 2017, 11:44:05 AM
After dyno, the bike is running 97/113 with Woods 777 cams and Fullsac DX pipe with 2" inserts. Top speed was 133mph. Not sure if that was in 5 or 6th gear.