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:

XIED Device'

Thread Tools
 
Search this Thread
 
Old Aug 16, 2014 | 07:12 PM
  #1  
cdrprn's Avatar
cdrprn
Thread Starter
|
Intermediate
Joined: Nov 2013
Posts: 25
Likes: 0
From: Arizona
Default XIED Device'

Anyone have experience with the XIED enrichment add-on? Or would I be better investing in a flash/auto tuner to keep the mixture a little richer than stock lean? I plan to keep the intake and exhaust stock. Any other suggestions?
 
Reply
Old Aug 16, 2014 | 07:19 PM
  #2  
Bumpandrun's Avatar
Bumpandrun
Stellar HDF Member
Joined: Jan 2013
Posts: 2,747
Likes: 419
From: Vermont
Default

Originally Posted by cdrprn
Anyone have experience with the XIED enrichment add-on? Or would I be better investing in a flash/auto tuner to keep the mixture a little richer than stock lean? I plan to keep the intake and exhaust stock. Any other suggestions?
just put them on the other day as I don't really have much done. It runs notable better. Also runs cooler. I will put a tuner on at a later date. But for now they work well
 
Reply
Old Aug 16, 2014 | 07:21 PM
  #3  
mkguitar's Avatar
mkguitar
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
Default

for many of us with Stage 1 motors, the Nightrider.com xied/vieds work great.

if you plan on motorwork or cams in the future a more complex device will be required.

I have many, many thousands of miles on my bike ( 09 FLHTC) with xieds.

From stock trim to hi flow exhaust and hi flow intake with no cat headers.

Under most riding conditions ( part throttle, cruising) the xieds will make the mixture about 8% richer than it would be otherwise.
My MPG was affected by about 2% ( 44 mpg stock, 43 mpg stage 1 w/ xieds).

The rev limit was left intact, which is ok for me.

mike
 

Last edited by mkguitar; Aug 16, 2014 at 07:24 PM.
Reply
Old Aug 16, 2014 | 07:37 PM
  #4  
cdrprn's Avatar
cdrprn
Thread Starter
|
Intermediate
Joined: Nov 2013
Posts: 25
Likes: 0
From: Arizona
Default

Thanks guys. I'm not really concerned about the mpg. The bike runs hot especially on the open road and the baffles look really light tan. Just guessing these things are setup super lean like most new bikes. I'm going to give the XIED's a try. I used to do all the stuff to my bikes but I'm played out on all that. Just want a smooth good runner and stock is fine. Thanks for the info.
 
Reply
Old Aug 16, 2014 | 07:40 PM
  #5  
kwo51's Avatar
kwo51
Outstanding HDF Member
Joined: Feb 2012
Posts: 3,046
Likes: 68
From: florida
Default

Get a set of jasons fans for the rest of the heat.
 
Reply
Old Aug 16, 2014 | 08:47 PM
  #6  
dochawken's Avatar
dochawken
Road Master
Joined: May 2009
Posts: 992
Likes: 2
From: TN
Default

Originally Posted by cdrprn
Anyone have experience with the XIED enrichment add-on? Or would I be better investing in a flash/auto tuner to keep the mixture a little richer than stock lean? I plan to keep the intake and exhaust stock. Any other suggestions?
For stage 1 they appear to be quite good...
 
Reply
Old Aug 16, 2014 | 09:16 PM
  #7  
SeaZund's Avatar
SeaZund
Road Warrior
Joined: Mar 2010
Posts: 1,290
Likes: 7
From: D/FW Texas
Default

what's the theory behind how they work?
 
Reply
Old Aug 16, 2014 | 09:32 PM
  #8  
bikerlaw's Avatar
bikerlaw
Ultimate HDF Member
Joined: Jun 2007
Posts: 9,193
Likes: 494
From: Richmond, VA
Default

I have them on my '13. I added an S&S intake and cored out my factory mufflers. I love how they work. Simple, and easy to adjust.
Seazund, they just trick the computer into adding more fuel.
 
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 Aug 16, 2014 | 09:33 PM
  #9  
mkguitar's Avatar
mkguitar
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
Default

Originally Posted by SeaZund
what's the theory behind how they work?
the ECM expects to see .45 volts DC from the o2 sensor- that signifies a correct mixture in the cylinder- in real time.

less voltage means the mixture is lean/ more voltage means rich.

so the ecm 'wants' to see .45 volts and will alter the fuel mixture to keep that number constant.

xieds are a simple resistor pack which knocks the .45 VDC down to a lesser value...the ECM responds by making the mixture a little richer to maintain a .45 VDC sensor input.

easy.

What Steve Mullen at Nightrider.com did was figure the values, then build a sturdy, close tolerance unit for us- probably the most expensive parts are the connectors



Mike
 
Reply
Old Aug 16, 2014 | 10:00 PM
  #10  
hdgzr's Avatar
hdgzr
Seasoned HDF Member
15 Year Member
Photogenic
Liked
Loved
Joined: Feb 2010
Posts: 5,618
Likes: 5,202
From: Green Country
Default

They have both adjustable and non-adjustable; I don't plan on changing the intake or removing the cat, so the fixed value ones for a stock bike work well for me. I believe I saw some in the classifieds for 50 bucks...
 
Reply



All times are GMT -5. The time now is 07:18 PM.

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