Milwaukee Eight (M8) 2017 and up M8 Air and Liquid Cooled discussion
Sponsored by:
Sponsored by:

M8 Dyno Numbers

Thread Tools
 
Search this Thread
 
Old Sep 27, 2019 | 10:14 PM
  #241  
VernDiesel's Avatar
VernDiesel
Road Captain
5 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2019
Posts: 689
Likes: 339
From: Dayton OH
Default

Anybody ever give any of these things a lil nitrous bump?
 
Reply
Old Oct 3, 2019 | 10:34 AM
  #242  
Woodsy's Avatar
Woodsy
Intermediate
10 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2012
Posts: 39
Likes: 14
From: Victoria BC Canada
Default Mild 114 build.


2019 FLHXS, 1st pull was completely stock with the exception of a Fullsac header & MK45 slip on's. (Nothing else, no tune ect) The 2nd pull was after the installation of Woods 22X camshaft w/S&S tappet cuff's, SE 55mm intake #27300167 (to replace plastic) SE extreme ventilator air cleaner + TTS tuner. (same exhaust as 1st pull) Tuned by Russell Inglis at Lonewolf Performance, (also installed the latest oil pump from HD #62400247 just because) Bike rides nice, pulls hard & has great manners at low rpm (which was the biggest complaint with my previous Stage IV 117 bike) Suspect the dip in the torque curve is due to my MK45's? (or maybe my camshaft just doesn't like my exhaust lol ??) All in, I'm happy & would like to give a big shout out to Russ at Lonewolf for great service & also thank all the contributors to HD Forums as I've learned a lot from this site!
 
Reply
Old Oct 4, 2019 | 12:25 AM
  #243  
Hardcase61's Avatar
Hardcase61
Cruiser
5 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2017
Posts: 217
Likes: 116
From: Dallas,tx
Default

Originally Posted by Woodsy

2019 FLHXS, 1st pull was completely stock with the exception of a Fullsac header & MK45 slip on's. (Nothing else, no tune ect) The 2nd pull was after the installation of Woods 22X camshaft w/S&S tappet cuff's, SE 55mm intake #27300167 (to replace plastic) SE extreme ventilator air cleaner + TTS tuner. (same exhaust as 1st pull) Tuned by Russell Inglis at Lonewolf Performance, (also installed the latest oil pump from HD #62400247 just because) Bike rides nice, pulls hard & has great manners at low rpm (which was the biggest complaint with my previous Stage IV 117 bike) Suspect the dip in the torque curve is due to my MK45's? (or maybe my camshaft just doesn't like my exhaust lol ??) All in, I'm happy & would like to give a big shout out to Russ at Lonewolf for great service & also thank all the contributors to HD Forums as I've learned a lot from this site!

is that with or without the DB killers in the MK45's? if you took them out that may be causing the dip.
 
Reply
Old Oct 4, 2019 | 04:22 PM
  #244  
Woodsy's Avatar
Woodsy
Intermediate
10 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2012
Posts: 39
Likes: 14
From: Victoria BC Canada
Default

DB killers were in during the dyno run.
 
Reply
Old Oct 5, 2019 | 09:33 PM
  #245  
$tonecold's Avatar
$tonecold
Club Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2011
Posts: 4,713
Likes: 2,222
From: Gilbert, Az.
Riders Club Member
Default

Originally Posted by Woodsy

2019 FLHXS, 1st pull was completely stock with the exception of a Fullsac header & MK45 slip on's. (Nothing else, no tune ect) The 2nd pull was after the installation of Woods 22X camshaft w/S&S tappet cuff's, SE 55mm intake #27300167 (to replace plastic) SE extreme ventilator air cleaner + TTS tuner. (same exhaust as 1st pull) Tuned by Russell Inglis at Lonewolf Performance, (also installed the latest oil pump from HD #62400247 just because) Bike rides nice, pulls hard & has great manners at low rpm (which was the biggest complaint with my previous Stage IV 117 bike) Suspect the dip in the torque curve is due to my MK45's? (or maybe my camshaft just doesn't like my exhaust lol ??) All in, I'm happy & would like to give a big shout out to Russ at Lonewolf for great service & also thank all the contributors to HD Forums as I've learned a lot from this site!
If you send your stock mufflers to Fullsac they will cut your stock baffles out and replace them with 2" or 2.25" baffles. The whole works will cost you about $300 US with shipping. I went with the 2" for low end torque. I just feel there is something wrong with your low end. Here's a chart of my 107" with the 22x.



This was with stock decatted header, stock cans with Fullsac 2" cores (baffles), Arlen Ness big sucker AC. Tuned with TTS.
Where your curve is going up at 2400 when it crosses the 110 line it should keep going up like this curve does. I would say on a 114 you should be looking at somewhere around 122 - 128 ft/lbs. Your hp looks about right. I don't know much about MK45's, but with the DB killers in they shouldn't kill your torque IMHO.
 
Reply
Old Oct 6, 2019 | 11:06 AM
  #246  
Woodsy's Avatar
Woodsy
Intermediate
10 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2012
Posts: 39
Likes: 14
From: Victoria BC Canada
Default

Thanks for the tip, I tend to agree on the exhaust being the culprit. I think I'll start looking for some CVO mufflers (take off's) to have them re-cored.
 
Reply
Old Oct 9, 2019 | 09:14 PM
  #247  
NorthWestern's Avatar
NorthWestern
Club Member
10 Year Member
Loved
Community Favorite
Top Answer: 10
Joined: Apr 2016
Posts: 11,605
Likes: 8,439
From: Inland NW
Riders Club Member
Default

Man, everybody's 114 numbers are way better than mine with the 117 tune they dropped in. I only got 97.5/115.5
 
Reply
Old Oct 9, 2019 | 10:20 PM
  #248  
hdrider1's Avatar
hdrider1
Tourer
Joined: Dec 2006
Posts: 467
Likes: 203
Default

Originally Posted by NorthWestern
Man, everybody's 114 numbers are way better than mine with the 117 tune they dropped in. I only got 97.5/115.5
So what's your build -- is it an apples to apples comparison?
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

 Verdad Gallardo
story-1

6 Weirdest Harley-Davidsons Ever Sold to the Public

 Verdad Gallardo
story-2

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-3

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-4

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-5

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-6

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-7

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-8

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-9

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
Old Oct 10, 2019 | 08:16 AM
  #249  
NorthWestern's Avatar
NorthWestern
Club Member
10 Year Member
Loved
Community Favorite
Top Answer: 10
Joined: Apr 2016
Posts: 11,605
Likes: 8,439
From: Inland NW
Riders Club Member
Default

Originally Posted by hdrider1
So what's your build -- is it an apples to apples comparison?
No build, just what is posted in my sig, similar to many. A Zippers 468, and exhaust. Not a huge shock, it just seems many others with a cam added have their power numbers around 110, and it makes me doubt this canned tune and the SEPST
 
Reply
Old Oct 10, 2019 | 09:29 AM
  #250  
Xcrossbow's Avatar
Xcrossbow
Stellar HDF Member
15 Year Member
Photogenic
Photoriffic
Joined: Aug 2008
Posts: 2,107
Likes: 283
From: California, Md now Savannah, Ga
Default

Originally Posted by NorthWestern
No build, just what is posted in my sig, similar to many. A Zippers 468, and exhaust. Not a huge shock, it just seems many others with a cam added have their power numbers around 110, and it makes me doubt this canned tune and the SEPST
If it were me and I had voided my engine warranty with an aftermarket cam, I wouldn't have used the H-D tuner that probably doesn't allow your full potential.
 
Reply



All times are GMT -5. The time now is 02:42 PM.

story-0
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

Slideshow: Killer Custom's latest build relies on styling changes rather than performance upgrades, giving the cruiser an entirely different personality.

By Verdad Gallardo | 2026-06-03 18:28:05


VIEW MORE
story-1
6 Weirdest Harley-Davidsons Ever Sold to the Public

Slideshow: From military-inspired singles to scooters and three-wheel utility vehicles, these Harleys took the company far outside its comfort zone.

By Verdad Gallardo | 2026-06-02 18:34:10


VIEW MORE
story-2
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-3
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-4
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-5
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-6
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-7
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-8
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-9
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE