General Harley Davidson Chat Forum to discuss general Harley Davidson issues, topics, and experiences.
Sponsored by:
Sponsored by:

Lugging?

Thread Tools
 
Search this Thread
 
  #1  
Old 06-06-2018, 07:06 AM
tafdeluxe's Avatar
tafdeluxe
tafdeluxe is offline
Cruiser
Thread Starter
Join Date: Jan 2014
Location: Canada
Posts: 186
Received 44 Likes on 13 Posts
Default Lugging?

My Indy says I'm lugging my 2011 Deluxe 96 ci twin cam. For the most part I am running 2500 to 2700 rpm. The engine just sounds right at that rev. He says that running at 3000 or a little better creates less wear on the crank and related components. He says he has received this information from a Harley school trained tech and he has been wrenching for approximately three decades. It is counterintuitive to me that a greater engine speed creates less wear especially when the engine just sounds right and is very responsive at that rpm. Thoughts? Experiences?
 

Top Answer

 
06-06-2018, 08:55 AM
BTLorys's Avatar
BTLorys
BTLorys is offline
Banned
Join Date: Apr 2017
Location: Westchester, NY
Posts: 3,119
Received 2,663 Likes on 1,230 Posts
Default

I think a blanket statement saying under 3K is lugging is ridiculous. Trying to accelerate up a 7% grade in 6th gear at 2700 RPMs would be lugging, but cruising down a flat road at 2500 RPMs is not lugging the engine.
 
  #2  
Old 06-06-2018, 07:22 AM
Douce's Avatar
Douce
Douce is offline
Cruiser
Join Date: Mar 2013
Location: Ontario
Posts: 193
Received 65 Likes on 40 Posts
Default 3,000 rpm sounds good

Anything lower than this and you could be lugging the engine. Listen to your mechanic.
 
  #3  
Old 06-06-2018, 08:45 AM
upflying's Avatar
upflying
upflying is offline
Seasoned HDF Member
Join Date: Aug 2013
Location: Post Falls, ID
Posts: 34,064
Received 26,139 Likes on 11,100 Posts
Default

If less than 3000 rpm is lugging, I guess I better forget about using 6th gear on the highway...at legal speeds of course.
 
The following 2 users liked this post by upflying:
Halojumper (11-19-2019), Wildon883R (06-13-2018)
  #4  
Old 06-06-2018, 08:48 AM
ThePaintPirate's Avatar
ThePaintPirate
ThePaintPirate is offline
Club Member
Join Date: Dec 2013
Location: SE Iowa
Posts: 2,750
Received 1,497 Likes on 786 Posts
Default

Follow the owners manual for shift points. Personally, I think your running RPM is fine.

Originally Posted by upflying
If less than 3000 rpm is lugging, I guess I better forget about using 6th gear on the highway...at legal speeds of course.
I've noticed over the years here, is that people like to over rev their motor and I can't understand why. The perceived RPM which is considered "lugging" keeps going up.
 

Last edited by ChickinOnaChain; 06-06-2018 at 10:25 AM.
The following 5 users liked this post by ThePaintPirate:
FXDXTSport (06-06-2018), mazz (06-06-2018), s-glide76 (11-17-2019), twoglides13 (06-28-2020), Uncle G. (11-17-2019)
  #5  
Old 06-06-2018, 08:55 AM
BTLorys's Avatar
BTLorys
BTLorys is offline
Banned

Join Date: Apr 2017
Location: Westchester, NY
Posts: 3,119
Received 2,663 Likes on 1,230 Posts
Default

I think a blanket statement saying under 3K is lugging is ridiculous. Trying to accelerate up a 7% grade in 6th gear at 2700 RPMs would be lugging, but cruising down a flat road at 2500 RPMs is not lugging the engine.
 
The following 26 users liked this post by BTLorys:
5wheels (11-17-2019), almostakeeper (11-17-2019), avetter11 (11-17-2019), chico08 (11-17-2019), cobalt07 (11-19-2019), crazytown (11-19-2019), DanRC (06-13-2018), deadhawg (06-06-2018), Erilflynn (11-18-2019), fsae0607 (06-06-2018), FXDXTSport (06-06-2018), Gozzie (06-06-2018), hdbob2006 (06-06-2018), KW HD (06-28-2020), lh4x4 (11-20-2019), Mxdad (11-17-2019), nevada72 (11-17-2019), Norcalsvt (11-17-2019), nytryder (06-06-2018), ole_phart (06-06-2018), RollaMo (06-06-2018), sailmotion (06-06-2018), TejasJeff (06-06-2018), twoglides13 (06-28-2020), upflying (06-06-2018), Zonktified (11-17-2019) and 21 others liked this post. (Show less...)
  #6  
Old 06-06-2018, 09:08 AM
Labrador's Avatar
Labrador
Labrador is offline
Road Master
Join Date: Jan 2017
Location: Illinois
Posts: 1,129
Received 503 Likes on 260 Posts
Default

Listen to your engine, it will tell you what is right. I agree that using the tach to gauge cruising speed is not good practice. Load, engine modifications and terrain all impact your riding. Do what feels best for your machine.

And about that H-D trained tech...how do we know if he was top of his class or someone who slept through that part of the class?
 
  #7  
Old 06-06-2018, 09:36 AM
RK_Classic's Avatar
RK_Classic
RK_Classic is offline
Seasoned HDF Member
Join Date: Dec 2005
Location: Stafford VA
Posts: 5,757
Received 5,564 Likes on 2,513 Posts
Default

Who doesn't lug making a rolling turn in 2nd gear? or in stop and go traffic, seems everyone is fixated with lugging 6th gear. As mentioned your bike will tell your when your lugging it.

rk classic.
 
  #8  
Old 06-06-2018, 09:42 AM
Coastal CVO's Avatar
Coastal CVO
Coastal CVO is offline
Outstanding HDF Member
Join Date: Apr 2013
Location: CC TX
Posts: 3,368
Received 471 Likes on 278 Posts
Default

Your fuel mileage will improve when you are in the power band, it will decrease when you "lug" the motor. you will have better throttle response when in the power band, and yes, lugging is a wear factor, now, how do you know when you are "lugging" there are as said above, general parameters in the owners manual, they are general. if you had or have a dyno report on your bike, this will help you to know where the power band or "sweetspot" is.
 
  #9  
Old 06-06-2018, 10:36 AM
QNman's Avatar
QNman
QNman is offline
Supporter
Join Date: Apr 2015
Location: St. Charles, MO
Posts: 6,851
Received 3,706 Likes on 1,987 Posts
Talking

Originally Posted by tafdeluxe
My Indy says I'm lugging my 2011 Deluxe 96 ci twin cam. For the most part I am running 2500 to 2700 rpm. The engine just sounds right at that rev. He says that running at 3000 or a little better creates less wear on the crank and related components. He says he has received this information from a Harley school trained tech and he has been wrenching for approximately three decades. It is counterintuitive to me that a greater engine speed creates less wear especially when the engine just sounds right and is very responsive at that rpm. Thoughts? Experiences?
Oh, snap! From now on, I'm rolling around town at 4,700 RPM! My engine will last FOREVER!
 
The following 3 users liked this post by QNman:
Halojumper (11-19-2019), hdbob2006 (06-06-2018), Uncle G. (11-17-2019)
  #10  
Old 06-06-2018, 10:39 AM
BTLorys's Avatar
BTLorys
BTLorys is offline
Banned

Join Date: Apr 2017
Location: Westchester, NY
Posts: 3,119
Received 2,663 Likes on 1,230 Posts
Default

Originally Posted by RK_Classic
Who doesn't lug making a rolling turn in 2nd gear? or in stop and go traffic, seems everyone is fixated with lugging 6th gear. As mentioned your bike will tell your when your lugging it.

rk classic.
I dont think anybodys fixated on it, but lugging would be more pronounced in the higher gears so its easier IMO to use it as an example.

You're likely not lugging the motor in stop and go traffic because youd be in 1st or 2nd and using a lot of the friction zone to keep the Rs up... and even with a rolling turn in 2nd, the gearing helps the engine at low speed/low rpm. Rolling on the throttle at 1800 rpms in second gear is going to give you a different response than rolling on at 1800 in 6th.
 


Quick Reply: Lugging?



All times are GMT -5. The time now is 04:02 AM.