Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

Dual Pipes Need Dual Dyno?

Thread Tools
 
Search this Thread
 
Old Apr 3, 2010 | 02:46 PM
  #1  
Sp0rtster's Avatar
Sp0rtster
Thread Starter
|
Advanced
Joined: Oct 2007
Posts: 57
Likes: 0
From:
Default Dual Pipes Need Dual Dyno?

Can anyone speak to the theory that if a bike has true dual exhaust, then to maximize performance and tune, both pipes should be sniffed by the dyno to achieve some sort of "balance"? I've heard dyno guys claim it doesn't really matter because the tuner/ Power Commander adjustments made will affect both jugs. I've also heard from different dyno guys that with a true dual system, both pipes need to be individualy tested and mapped for maximum performance. Both arguements seem plausible if not convincing, or is one just a marketing scheme by a shady dyno tech? Interestingly, the PCIII software DOES have the ability to map both pipes separately.
 
Reply
Old Apr 3, 2010 | 03:22 PM
  #2  
hog-doc's Avatar
hog-doc
Outstanding HDF Member
Joined: Feb 2009
Posts: 2,005
Likes: 53
From: ID Ho
Default

Anytime you run true duals your dyno guy maps each cylinder individually. The auto tunes read the O2 sensor in each pipe and make adjustments based on those readings.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Cobra231
Exhaust System Topics
5
Sep 7, 2015 07:10 PM
Buck Lovell
General Harley Davidson Chat
10
May 28, 2014 09:35 AM
jjr
Exhaust System Topics
3
Jun 15, 2007 10:40 PM
rscott82
Touring Models
4
Jun 8, 2007 06:50 PM
asuperheat
Touring Models
0
Aug 27, 2006 12:25 PM




All times are GMT -5. The time now is 07:17 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