EFI to Carb conversion?
Outstanding HDF Member
Joined: Apr 2006
Posts: 2,555
Likes: 3
From: Clarksburg, PA
Is there a base map to start with? Does it measure the A/F ratio?
Road Master
Joined: May 2006
Posts: 941
Likes: 27
From:
Yes to a base map and sort of to the AFR ratio. All said even if you just did the base map with your Air cleaner and Exhaust swaps only you will be just fine.
I suggest reading info on the TTS.
I suggest reading info on the TTS.
Outstanding HDF Member
Joined: Apr 2009
Posts: 2,705
Likes: 2
From: D.C.
Hey all!
I realize this is an old topic but I'd like to ask a couple of questions:
1) When you mean "dowload" upgrades for EFI bikes, you really mean like with a computer? How does EFI exactly works? I have no idea...my only bike I had so far (before I can get my HD) was an old carb dirt bike...it was not HD ok but in 30+ years it never leaked once. Always worked smoothly.
2) Isn't it to be more reliable that HD started to put EFI on their bikes? I didn't know it had something to do with EPA. I thought the new engines and stock pipes were made to match EPA regulations?
3) a HD with a carb will always sound better anyway correct? :-)
4) You blow up your warrenty if you switch for a carb?
I realize this is an old topic but I'd like to ask a couple of questions:
1) When you mean "dowload" upgrades for EFI bikes, you really mean like with a computer? How does EFI exactly works? I have no idea...my only bike I had so far (before I can get my HD) was an old carb dirt bike...it was not HD ok but in 30+ years it never leaked once. Always worked smoothly.
2) Isn't it to be more reliable that HD started to put EFI on their bikes? I didn't know it had something to do with EPA. I thought the new engines and stock pipes were made to match EPA regulations?
3) a HD with a carb will always sound better anyway correct? :-)
4) You blow up your warrenty if you switch for a carb?
Elite HDF Member
Joined: Apr 2009
Posts: 4,082
Likes: 11
From: Long Island, NY
1. Yes
2. Don't know if EFI is more reliable than a carb. Probably better if riding through a range of altitudes. I'm sure the EPA requirements sped up the shift to EFI.
3. In my opinion, yes.
4. Yep.
2. Don't know if EFI is more reliable than a carb. Probably better if riding through a range of altitudes. I'm sure the EPA requirements sped up the shift to EFI.
3. In my opinion, yes.
4. Yep.
Elite HDF Member
Joined: Aug 2006
Posts: 3,863
Likes: 21
From: Kennewick, WA
EFI was for the EPA, not relability. Ask anyone running a carb and they'll tell you they are very reliable when tuned properly for the conditions. My old Road King ran like a champ day in day out.
Tourer
Joined: Oct 2007
Posts: 463
Likes: 2
From: Buffalo, NY
Hey all!
I realize this is an old topic but I'd like to ask a couple of questions:
1) When you mean "dowload" upgrades for EFI bikes, you really mean like with a computer? How does EFI exactly works? I have no idea...my only bike I had so far (before I can get my HD) was an old carb dirt bike...it was not HD ok but in 30+ years it never leaked once. Always worked smoothly.
2) Isn't it to be more reliable that HD started to put EFI on their bikes? I didn't know it had something to do with EPA. I thought the new engines and stock pipes were made to match EPA regulations?
3) a HD with a carb will always sound better anyway correct? :-)
4) You blow up your warrenty if you switch for a carb?
I realize this is an old topic but I'd like to ask a couple of questions:
1) When you mean "dowload" upgrades for EFI bikes, you really mean like with a computer? How does EFI exactly works? I have no idea...my only bike I had so far (before I can get my HD) was an old carb dirt bike...it was not HD ok but in 30+ years it never leaked once. Always worked smoothly.
2) Isn't it to be more reliable that HD started to put EFI on their bikes? I didn't know it had something to do with EPA. I thought the new engines and stock pipes were made to match EPA regulations?
3) a HD with a carb will always sound better anyway correct? :-)
4) You blow up your warrenty if you switch for a carb?
Thread Starter
|
Club Member
Joined: Feb 2008
Posts: 11,483
Likes: 39
From: Passaic County, NJ
EFI works the same way on a bike as it does a car. A computer (ECM) decides when and how much gas to inject into the cylinder. Although it does have it's limitations. A download will increase the max. an ecm can do.
Most people will buy add-ons like the dynojet powercommands III (version three) or the newer V (five). You are then able to download your own maps to it using a computer, the powercommander software and a long usb cable.
Most people will buy add-ons like the dynojet powercommands III (version three) or the newer V (five). You are then able to download your own maps to it using a computer, the powercommander software and a long usb cable.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Outstanding HDF Member
Joined: Apr 2009
Posts: 2,705
Likes: 2
From: D.C.
EFI works the same way on a bike as it does a car. A computer (ECM) decides when and how much gas to inject into the cylinder. Although it does have it's limitations. A download will increase the max. an ecm can do.
Most people will buy add-ons like the dynojet powercommands III (version three) or the newer V (five). You are then able to download your own maps to it using a computer, the powercommander software and a long usb cable.
Most people will buy add-ons like the dynojet powercommands III (version three) or the newer V (five). You are then able to download your own maps to it using a computer, the powercommander software and a long usb cable.
Elite HDF Member
Joined: Sep 2007
Posts: 4,541
Likes: 1
From: Nuevo México, Los Estados Unidos de América
Hey all!
I realize this is an old topic but I'd like to ask a couple of questions:
1) When you mean "dowload" upgrades for EFI bikes, you really mean like with a computer? How does EFI exactly works? I have no idea...my only bike I had so far (before I can get my HD) was an old carb dirt bike...it was not HD ok but in 30+ years it never leaked once. Always worked smoothly.
I realize this is an old topic but I'd like to ask a couple of questions:
1) When you mean "dowload" upgrades for EFI bikes, you really mean like with a computer? How does EFI exactly works? I have no idea...my only bike I had so far (before I can get my HD) was an old carb dirt bike...it was not HD ok but in 30+ years it never leaked once. Always worked smoothly.
If by better you mean a more traditional sound... than probably... part of it too though, is that the Twin Cams (carbed or not) have to be run at a higher idle level than the Evos, but with a Carbed Twin Can you can just twist a *** to slow it down, where EFI is "stuck" where it's programed (although not hard to reprogrammed). So it's really the engine more than the fuel delivery.
[/QUOTE]
Like anything, if you change it, it's no longer covered, and if it's the change that caused the problem, you're no longer covered.