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

M8 Performance Recommendations

Thread Tools
 
Search this Thread
 
Old Oct 8, 2017 | 04:26 PM
  #1  
lhgdale's Avatar
lhgdale
Thread Starter
|
Stellar HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2009
Posts: 2,454
Likes: 58
From: Graysville, AL
Default M8 Performance Recommendations

Hello, I put some money down the other day on a 18 Bonneville Salt Pearl RGS. My plan is to do all the performance items at once probably around the 1000 mile service. I have a Power Vision Tuner so I'll just get a new license for it but everything else I'm open for suggestions.

I'm looking for low bottom end power up to around 5500 rpm. I like to hot rod and play around but I'm pretty easy on the bikes in general.

I'll be changing:

Cams - Looking at Woods 222's or Andrews

Intake - Zippers Max Flow or Harley's Screaming Eagle

Exhaust - No Idea other than I want BLACK, since the 18's come with stretched bags I'll need a good 2-1-2 system or a dummy pipe for a 2-1 system.

Thanks in advance for the help and suggestions.
 
Reply
Old Oct 8, 2017 | 05:32 PM
  #2  
G-Reese87's Avatar
G-Reese87
Advanced
Joined: Sep 2017
Posts: 73
Likes: 19
From: New Jersey
Default

Originally Posted by lhgdale
Hello, I put some money down the other day on a 18 Bonneville Salt Pearl RGS. My plan is to do all the performance items at once probably around the 1000 mile service. I have a Power Vision Tuner so I'll just get a new license for it but everything else I'm open for suggestions.

I'm looking for low bottom end power up to around 5500 rpm. I like to hot rod and play around but I'm pretty easy on the bikes in general.

I'll be changing:

Cams - Looking at Woods 222's or Andrews

Intake - Zippers Max Flow or Harley's Screaming Eagle

Exhaust - No Idea other than I want BLACK, since the 18's come with stretched bags I'll need a good 2-1-2 system or a dummy pipe for a 2-1 system.

Thanks in advance for the help and suggestions.

Been doing some research for when my 18 comes in and for intake the screamin eagle 90 degree bend one is really nice. As far as cams check out the cycle Rama 460 I seen some dyno sheets on here and they seem to produce good numbers and a nice steady curve in power and torque. Exhaust is seriously something everyone is going to say is completely subjective. There really isn't a right or wrong answer it has to be what you like. First you have to decide what's more important sound looks or performance. For me I'm looking into the rinehart slimline duals to keep the low end torque and the svt boneshakers. Little pricey but imo best sounding mufflers so far. Once again that's to my ears maybe not yours or others. Good luck with everything.
 
Reply
Old Oct 8, 2017 | 05:47 PM
  #3  
MPD12's Avatar
MPD12
Advanced
Joined: Jun 2008
Posts: 60
Likes: 3
From: NH
Default

I have also ordered a 18 RGS Bonneville Salt. Bike will be in next month. So far I’ve ordered Vance & Hines Power Duels w/ Eliminator 4” mufflers (black of course). S&S Stealth Air Cleaner w/ Air Stream cover. Power Vision Tuner.

My local bike shop has had great results with Woods 222 cam. I would love see if any other cams get better results.

Best of luck with your build.
 
Reply
Old Oct 8, 2017 | 07:29 PM
  #4  
Steel Wheels's Avatar
Steel Wheels
Road Master
Joined: Aug 2011
Posts: 1,195
Likes: 299
From: midwest
Default

Look at the 460 from Cycle Rama. Lots of good reviews. Street Cannons are near the top for torque numbers - I was going with S&S but changed my mind.
 
Reply
Old Oct 8, 2017 | 08:40 PM
  #5  
lhgdale's Avatar
lhgdale
Thread Starter
|
Stellar HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2009
Posts: 2,454
Likes: 58
From: Graysville, AL
Default

Thanks guys!!!! That 460 Cycle Rama is making some great power. I read a few threads that people are not pleased with the 222 cams. The 460 is my pick.. Thanks for the info.
 
Reply
Old Oct 8, 2017 | 08:51 PM
  #6  
lrcormier's Avatar
lrcormier
Cruiser
Joined: Jun 2008
Posts: 160
Likes: 40
From: San Diego
Default

Since your already planning on using your Power Vision I recommend you check out Fuel Moto's website. Jamie has several dyno graphs with various configuration (cams, intake, exhaust) posted on his site, he buys a new bike every year just for this purpose. He also has headers for 17/18 bikes and a nice selection of mufflers.
 
Reply
Old Oct 8, 2017 | 10:18 PM
  #7  
Doshounds's Avatar
Doshounds
Tourer
Joined: Apr 2014
Posts: 499
Likes: 164
From: Houston
Default

If you are going for performance. D&D will get you there. There are few if any exhaust systems that will flow enough to handle the M8 with increased cubes, high compression, high lift cam, and CNC ported heads. The D&D M8 system is barely enough to handle the M8 in a high performance application, however, it is one of the better options out there at the moment.



 

Last edited by Doshounds; Oct 8, 2017 at 10:36 PM.
Reply
Old Oct 9, 2017 | 10:17 AM
  #8  
hellbilly78's Avatar
hellbilly78
Tourer
Joined: Oct 2013
Posts: 368
Likes: 3
From: pennsylvania
Default

Im doin my performance research as well incase my bike is totaled and the cyclerama 460 cam looks awesome. My twin cam had a fuel moto 107 on it with head work makin 113ho 130tq. A m8 with exhaust air cleaner tuner and that cam is makin close to those numbers. If i recall the numbers i seen were 107hp and 118tq. But the tq curve looks awesome from the bottom pretty much all the way up. Mine didnt hit strong until 3-3200rpm. Hope this has helped
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

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

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Oct 9, 2017 | 12:36 PM
  #9  
goblue90's Avatar
goblue90
Road Master
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2014
Posts: 1,023
Likes: 380
From: Philly Burbs
Default

I ordered the CR460 cam this morning. It came down to either the TTS100 or the CR460 and I decided on the latter. Anybody know of a good ship in the Philly area? I'm avoiding area dealerships as they've all quoted me 8 - 9 hours for cam installation.
 
Reply
Old Oct 9, 2017 | 03:06 PM
  #10  
Bannana Boat's Avatar
Bannana Boat
Road Captain
20 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2004
Posts: 610
Likes: 53
From: Kennesaw, GA
Default

Haven't tried the Cycle rama's but the dyno sheets Sheffer HD (on their fb page) has on them show nice gains. The TTS-100 is a great cam as well. I have the TTS-200 and luv it. Super smooth and powerful. If you are concerned about having it be as loud as a twin cam, dump the stock header. I have the Fullsac Mx head pipe and it sounds waaaay better, is louder and performs better. Also, if your going SE on the breather, the heavy breather puts up the best numbers and looks great on the RG.
 
Reply



All times are GMT -5. The time now is 02:47 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE