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:

RevTech DFO

Thread Tools
 
Search this Thread
 
Old Jun 1, 2009 | 09:04 AM
  #1  
wbogan's Avatar
wbogan
Thread Starter
|
Novice
Joined: May 2007
Posts: 19
Likes: 0
From: Arlington, TX
Question RevTech DFO

Has anyone ever bought and used the RevTech Digital Fuel Optimizer?
I have an 01 Road King Classic with EFI and a K&N air filter.
I would like to change out my stock exhaust to true duals but would like to get a fuel controller as well.
This unt looks easier to install than the Power Commander.
What do you think?
Thx
Wayne
 
Reply
Old Jun 1, 2009 | 09:22 AM
  #2  
RED E GLIDE's Avatar
RED E GLIDE
Tourer
Joined: Jan 2006
Posts: 308
Likes: 0
From: SUNNY,FL
Default

I have one and I like it. It works well for bolt on mods.
 
Reply
Old Jun 1, 2009 | 09:31 AM
  #3  
rideshack's Avatar
rideshack
Former Sponsor
Joined: Feb 2009
Posts: 204
Likes: 1
From: Loveland Colorado
Default

Any of the "3-pot" adjusters basically downgrades fuel injection into an ancient form of carburaetion. They assign an duty cycle length on the injectors in just three ranges, where the fuel injection system wants to see a couple hundred different duty cycles depending on conditions present. Cobra, Arlen Ness, and even HD have a component that is similar to catch the customers that want to do it themselves, but are intimidated (understandably) by fuel injection.

If you want a component you can install yourself without a computer, look at the Fuelpak from Vance & Hines.

If you purchase a Powercommander from us or Fuelmoto (both forum sponsors), it will be shipped with a map loaded that will be close for the mods on you bike, so the worry of programming is reduced.

Corey
 
Reply
Old Jun 1, 2009 | 09:49 AM
  #4  
RED E GLIDE's Avatar
RED E GLIDE
Tourer
Joined: Jan 2006
Posts: 308
Likes: 0
From: SUNNY,FL
Default

It actually has 4 potentiometers, not 3. I think the Fuel pack has only 3. The DFO is made in the USA. Nice sales pitch though.
 
Reply
Old Jun 1, 2009 | 10:06 AM
  #5  
HDRider2002's Avatar
HDRider2002
Road Master
Joined: Jul 2008
Posts: 1,142
Likes: 7
From: Michigan
Default

I ran a DFO for years and recently went to a Power Commander. If you are just doing Air Cleaner and Exhaust, then you will be fine with the DFO. As far as install, the Power Commander is MUCH easier, as its plug and play, whereas the DFO needs to be Hardwired into the wiring harness. Its not difficult at all, but not as easy as the PowerCommander. If you plan on doing future mods to your motor, such as cams, heads, big bore, then spend the extra money now and do a Power Commander or SERT, or other such tuneable device. If you aren't going to do any of that stuff, the DFO works great, and i would recommend it to anyone. The one that i took off my bike will likely go on my buddy's EG once we install the Stage 1
 
Reply
Old Jun 1, 2009 | 10:11 AM
  #6  
rideshack's Avatar
rideshack
Former Sponsor
Joined: Feb 2009
Posts: 204
Likes: 1
From: Loveland Colorado
Default

Originally Posted by RED E GLIDE
It actually has 4 potentiometers, not 3. I think the Fuel pack has only 3. The DFO is made in the USA. Nice sales pitch though.


The Fuelpak actually has 18 sectors of adjustment. It is a proprietory configuration, disallowing customer manipulation and adjustment. A mute point since they don't make a Fuelpak for Mag-Marelli.

No sales pitch, just information. Nearly every vendor sells a entry level fuel adjuster, and they basically function the same as the other. Most only allow the adding of fuel, no leaning of fuel adjustment. Not all configurations want more fuel. In fact, I think at least three of them were developed by the same guy, and marketed by different companies. Techlusion, DFO, and Cobra, I think. I could be wrong.

Corey
 

Last edited by rideshack; Jun 1, 2009 at 10:21 AM.
Reply
Old Jun 1, 2009 | 11:00 AM
  #7  
VTwin-Goodies's Avatar
VTwin-Goodies
Former Sponsor
Joined: Nov 2007
Posts: 47,839
Likes: 1,956
From: SoCal
Default

Tom from http://harleygoodies.com/ here. I vote for a PC for simplicity sake and the ability to upgrade it easily. DFO is okay, but the PC offers far more adjustability.

Regards,
Tom
Harley Goodies
 
Reply
Old Jun 1, 2009 | 12:32 PM
  #8  
xxxflhrci's Avatar
xxxflhrci
Extreme HDF Member
Joined: Sep 2006
Posts: 10,033
Likes: 29
Default

I have a DFO. I like it. It worked great to do what I wanted....add fuel after putting one True Duals...My throttle response is great and I get good fuel mileage....40-45 in most riding conditions.
 
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 Jun 1, 2009 | 12:34 PM
  #9  
xxxflhrci's Avatar
xxxflhrci
Extreme HDF Member
Joined: Sep 2006
Posts: 10,033
Likes: 29
Default

Originally Posted by HDRider2002
whereas the DFO needs to be Hardwired into the wiring harness.
The Stealth DFO model is plug and play also.
 
Reply
Old Jun 1, 2009 | 01:38 PM
  #10  
phat96's Avatar
phat96
Road Warrior
Joined: Mar 2007
Posts: 1,912
Likes: 2
From: Cave Creek, AZ
Default

My old dfo had 3 pods and the new one has the 4 pods. Had my new one in 1 year and it works well but I feel it's leaving something on the table with HP and Torque. I have true duals also and other tweaks to the motor, on the 01 I would do the PC then theres no guessing on air fuel ratio's or HP. My opinion.
 
Reply



All times are GMT -5. The time now is 08:56 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