General Harley Davidson Chat Forum to discuss general Harley Davidson issues, topics, and experiences.
Sponsored by:
Sponsored by:

Is This Wrench Crazy?

Thread Tools
 
Search this Thread
 
Old Jan 28, 2007 | 07:02 PM
  #11  
1200c's Avatar
1200c
Road Warrior
Joined: Jun 2005
Posts: 1,334
Likes: 2
Default RE: Is This Wrench Crazy?

He is correct. The 07 bikes use a closed-loop system that is able to adjust to the changes. You can just put on a a/c and slip-ons and the fuel map will adjust.

However, in that situation you still retain the stock map that was designed to be EPA compliant and lean in certain spots. You can probably gain a few more ponies by having someone do a good custom map. However, the cost for the custom map may not be worth the price of the 2-3 extra hp you might get.

It's your choice to make, but a PCIII/remap/SERT is NOT necessary on a 07 bike.

As far as I know, all that you can add without some kind of fuel management is pipes.
You could have always done that, even on the carbed bike. Adding just pipes didn't make enough of a change to ever require you to rejet or remap. It's when you added the high-flowing a/c that a remap/rejet was necessary.
 
Old Jan 28, 2007 | 07:20 PM
  #12  
hd2007's Avatar
hd2007
Road Warrior
Joined: Aug 2006
Posts: 1,377
Likes: 1
From: Grand Island , New York
Default RE: Is This Wrench Crazy?

You are 100% wrong ! Please do your research ! YES THIS IS IN CAPS , DO NOT WASTE MONEY ON THE HARLEY DOWNLOADS ! they are junk e.p.a. regulated.
I would break the bike in bone stock {900 to 1000 miles} In the mean-time find some pipes or slip ons you like , get a power commander III from fuel moto . he will set it up for you for free , and last a screaming eagle or big sucker air filter.All this work can be done by yourself , and is very easy.
ORIGINAL: 1200c

He is correct. The 07 bikes use a closed-loop system that is able to adjust to the changes. You can just put on a a/c and slip-ons and the fuel map will adjust.

However, in that situation you still retain the stock map that was designed to be EPA compliant and lean in certain spots. You can probably gain a few more ponies by having someone do a good custom map. However, the cost for the custom map may not be worth the price of the 2-3 extra hp you might get.

It's your choice to make, but a PCIII/remap/SERT is NOT necessary on a 07 bike.

As far as I know, all that you can add without some kind of fuel management is pipes.
You could have always done that, even on the carbed bike. Adding just pipes didn't make enough of a change to ever require you to rejet or remap. It's when you added the high-flowing a/c that a remap/rejet was necessary.
 
Old Jan 28, 2007 | 07:31 PM
  #13  
OldBoldPilot's Avatar
OldBoldPilot
Club Member
Veteran: Marine Corps
20 Year Member
Joined: Mar 2006
Posts: 18,304
Likes: 26,566
From: Northwest of Los Angeles
Default RE: Is This Wrench Crazy?

I am retracting my previous comments. This whole issue is so up in the air, and there are so many variables, that I don't think a valid statement can yet be made one way or the other.

Philip
 
Old Jan 28, 2007 | 07:42 PM
  #14  
hd2007's Avatar
hd2007
Road Warrior
Joined: Aug 2006
Posts: 1,377
Likes: 1
From: Grand Island , New York
Default RE: Is This Wrench Crazy?

That's what I was talking about , I have a friend that runs the HD service dept. the 07 will NOT adjust to the changes you stated . We took my stock bike with just slip ons and put it on the dyno , the results were way too lean . If you put a free flowing air filter on it without a change to the air fuel ratio {power commander} you will surely burn up the engine.
 
Old Jan 28, 2007 | 07:58 PM
  #15  
hartick's Avatar
hartick
Tourer
Joined: Jan 2007
Posts: 308
Likes: 0
From:
Default RE: Is This Wrench Crazy?

i am still waiting on my bike to get in. but in the mean time i have ordered the SE touring exhaust and SE AC. 2 of the parts/service people at my dealer said the brain would be able to adjust in its band with just those addons. if i went with the V&Hs or Rhineharts then i would have to get either the pcIII or SERT. i have been thinking this over and reading a bunch of upgrade posts and i am still thinking i should pick up a SERT while im at it. i dont want to lean out the bike even more than stock but if the stock map can adjust then maybe it would be alright. as far as exhaust goes, im not looking for big loud or crazy hp & tq gains. just to be noticed if somebody forgets im there and still low enough to cruise for long times without any louder ringing in my ears.
 
Old Jan 28, 2007 | 08:27 PM
  #16  
JeffSG's Avatar
JeffSG
Road Warrior
Joined: Oct 2006
Posts: 1,343
Likes: 1
Default RE: Is This Wrench Crazy?

Go with the SERT (on the '07s) as it will allow you to use the 02 sensors and will adjust to changes in climate, altitude, etc. 02 sensors area greattechnology that you are unable to use with PCIII. If you change the air cleaner you will need to adjust the air/fuel mixture with a SERT

God Bless and ride safe,
 
Old Jan 28, 2007 | 08:37 PM
  #17  
mp's Avatar
mp
Stellar HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: May 2005
Posts: 2,137
Likes: 17
From:
Default RE: Is This Wrench Crazy?

Reading threads like this make me feel sorry for guys who waited too long to buy a Harley and missed out on the carbureted ones.
 
Old Jan 28, 2007 | 08:41 PM
  #18  
hd2007's Avatar
hd2007
Road Warrior
Joined: Aug 2006
Posts: 1,377
Likes: 1
From: Grand Island , New York
Default RE: Is This Wrench Crazy?

Its not rocket science , I will never go back to a carb , the advantages of a fuel injected bike outweigh anything a carb can provide. bye choke , long warn ups .
Remember when our cars had carbs ? LOL
 
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 Jan 28, 2007 | 09:43 PM
  #19  
lp's Avatar
lp
Seasoned HDF Member
20 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2006
Posts: 11,476
Likes: 3,004
From: Charleston, SC
Default RE: Is This Wrench Crazy?

The O2's do little as is. They are narrowband and are only doing anything at about idle. Plus the whole system is Open loop anyway. Meaning it does little if any self tuning.
PCIII is fine with the 07's. But yeah, the SERT is too...

lp

ORIGINAL: JeffSG

Go with the SERT (on the '07s) as it will allow you to use the 02 sensors and will adjust to changes in climate, altitude, etc. 02 sensors area greattechnology that you are unable to use with PCIII. If you change the air cleaner you will need to adjust the air/fuel mixture with a SERT

God Bless and ride safe,
 
Old Jan 28, 2007 | 10:02 PM
  #20  
WVULTRA's Avatar
WVULTRA
Road Captain
Joined: Feb 2006
Posts: 739
Likes: 3
Default RE: Is This Wrench Crazy?

ORIGINAL: lp

The O2's do little as is. They are narrowband and are only doing anything at about idle. Plus the whole system is Open loop anyway. Meaning it does little if any self tuning.
PCIII is fine with the 07's. But yeah, the SERT is too...

lp
lp:
Have to disagree with your statement. Below is the desired A/F Ratio from a SERT Stage 1 Touring Map. Any cell that will accept a value of 14.6 will request the system to operate in Closed Loop.



[IMG]local://upfiles/8738/86485FCDD2C94DDEBBD0674F885D697A.jpg[/IMG]
 



All times are GMT -5. The time now is 03:05 AM.

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