Carb versus EFI
Road Master
Joined: Jan 2006
Posts: 1,187
Likes: 1
From:
RE: Carb versus EFI
Earlier poster mentioned the magic words... Fuel injection should be "closed loop"! Company called Thundermax makes 'em. Guess what my HD is getting?
That's right. Closed loop fuel injection. Not exactly cheap, but to me, just makes more sense. As soon as it is finished, I will let you know what I think, in my typical no holds barred fashion. I am hoping that it will be a good report!
Props to my buddy Storm for the hookup with the shop doing the work!
That's right. Closed loop fuel injection. Not exactly cheap, but to me, just makes more sense. As soon as it is finished, I will let you know what I think, in my typical no holds barred fashion. I am hoping that it will be a good report! Props to my buddy Storm for the hookup with the shop doing the work!
Outstanding HDF Member
Joined: Nov 2006
Posts: 2,203
Likes: 2
From: Pittsburgh, PA
RE: Carb versus EFI
ORIGINAL: Alaska Bobber
I understand people who are not comfortuable with computer to like carbs. That is cool. You probably still buy stamps and write checks too. It's all good. I on the other hand have not written a check in 3 years and last time I bought a book of stamps, Clinton was president.
I can work on a carb as well as the EFI. The 06 and older Open Loop EFI is mediocre in my opinion. However the new Closed Loop system should really bring things around. EFI is here to stay.
As the Borg would say "Resistance is futile."
I understand people who are not comfortuable with computer to like carbs. That is cool. You probably still buy stamps and write checks too. It's all good. I on the other hand have not written a check in 3 years and last time I bought a book of stamps, Clinton was president.
I can work on a carb as well as the EFI. The 06 and older Open Loop EFI is mediocre in my opinion. However the new Closed Loop system should really bring things around. EFI is here to stay.
As the Borg would say "Resistance is futile."
I guess I am just "OLD SKOOL"
carbs forever,
Elite HDF Member
Joined: Nov 2006
Posts: 3,909
Likes: 6
From: Livingston, Texas
RE: Carb versus EFI
ORIGINAL: GOSTAZ
Earlier poster mentioned the magic words... Fuel injection should be "closed loop"! Company called Thundermax makes 'em. Guess what my HD is getting? That's right. Closed loop fuel injection. Not exactly cheap, but to me, just makes more sense. As soon as it is finished, I will let you know what I think, in my typical no holds barred fashion. I am hoping that it will be a good report!
Props to my buddy Storm for the hookup with the shop doing the work!
Earlier poster mentioned the magic words... Fuel injection should be "closed loop"! Company called Thundermax makes 'em. Guess what my HD is getting?
That's right. Closed loop fuel injection. Not exactly cheap, but to me, just makes more sense. As soon as it is finished, I will let you know what I think, in my typical no holds barred fashion. I am hoping that it will be a good report! Props to my buddy Storm for the hookup with the shop doing the work!
I like theeasy cranking of the Fuel Injection. Throttle response, and fuel milage.If a FI bike is kept in its maintenance schedules you will spend money on scheduled maintenacne but won't break down with fuel quick disconnect leaks and stuff.
Elite HDF Member
Joined: Nov 2006
Posts: 3,909
Likes: 6
From: Livingston, Texas
RE: Carb versus EFI
As we were talking on the forum I head the UPS truck I jumped up and the UPS man was at the door.
I called my builder tuesday and ordered a Thundermax for my buddy's 07 Street Bob. Got a good price on it too.
Were gonna put it on this weekend. My buillder had the Tm preloaded with the changes made to his new 07 bike already mapped in it.
So except for the installation, all we will have to do is initilize the unit and ride it. The unit tunes itself. No dyno time needed.
You can control the idle control, rev limiter, free software upgrades. and self adjusting fuel maps. You can use nitrous with the unit too.
3 yr warranty.
The Thundermax is the performance product of the year too.
I called my builder tuesday and ordered a Thundermax for my buddy's 07 Street Bob. Got a good price on it too.
Were gonna put it on this weekend. My buillder had the Tm preloaded with the changes made to his new 07 bike already mapped in it.
So except for the installation, all we will have to do is initilize the unit and ride it. The unit tunes itself. No dyno time needed.
You can control the idle control, rev limiter, free software upgrades. and self adjusting fuel maps. You can use nitrous with the unit too.
3 yr warranty.
The Thundermax is the performance product of the year too.
Banned
Joined: Apr 2007
Posts: 1,226
Likes: 1
From:
RE: Carb versus EFI
Props to my buddy Storm for the hookup with the shop doing the work!
looks good and it should run good too.
See ya down in Old Town
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Ultimate HDF Member
Joined: Feb 2007
Posts: 7,663
Likes: 7
From: Northeast Ohio
RE: Carb versus EFI
I run the Daytona Twin Tech TCFI II closed loop system, that I tuned myself. Easy starts both hot and cold, set A/F differently throughout the rpm nd throttle ranges for good mpg. Being able to monitor through downloads to loging software all A/f and timing info (infinitely adjustable). I would NEVER go back to carb unless there was a bike I realy wanted and that was all that was available. What I dont miss about carbs (and I had plenty of them):
floats sticking - gas runing everywhere
flooding over when hot, miserable starting
rejetting everytime I made a mod to the bike
losing little parts while tearing the carb apart (again)
forgetting to push the choke in all the way and fouling a plug
and a lot of other miseries that I have forgotten about
floats sticking - gas runing everywhere
flooding over when hot, miserable starting
rejetting everytime I made a mod to the bike
losing little parts while tearing the carb apart (again)
forgetting to push the choke in all the way and fouling a plug
and a lot of other miseries that I have forgotten about
5th Gear
Joined: Jul 2007
Posts: 9
Likes: 0
RE: Carb versus EFI
Being new to Harleys all this is interesting. But when did HD start using EFI? What was the first year it was available? Sounds as though they sold both carbed and EFI at the same time depending on the buyer's preference. How long did that go on? If I understood all this correctly 2005 was the last year a carbed one could be ordered. Also that 2006 and older EFI models were open loop and the 2007 are closed loop. I'm looking tobuy a used Dyna and would like to know what to look for. If the 06 and older EFIs aren't reliable I would rather find one with a carb.
Road Warrior
Joined: Jun 2006
Posts: 1,602
Likes: 0
From: Maryland
RE: Carb versus EFI
You could get Harleys with carbs in 2006.
I think the only disadvantage to an EFI model is you can't push start it.
I use to have a carbed Toyota Corolla and I took it in to Jiffy Lube for an oil change. The guy working there told me my fuel injectors were dirty and needed to be cleaned and they would glady do it for $50. I didn't even bother to call him an idiot and a liar. That was 10 years ago.
I think the only disadvantage to an EFI model is you can't push start it.
I use to have a carbed Toyota Corolla and I took it in to Jiffy Lube for an oil change. The guy working there told me my fuel injectors were dirty and needed to be cleaned and they would glady do it for $50. I didn't even bother to call him an idiot and a liar. That was 10 years ago.
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Elite HDF Member
Joined: Nov 2006
Posts: 3,909
Likes: 6
From: Livingston, Texas
RE: Carb versus EFI
Hmmm ! Got a 07 Wg, battery went dead. I pushed it up the hill and going down the hill I turned the key switch on, jumped in the air and put it in gear and it cranked right up. So don't know where the push start theory come in at.
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carb, carburetor, difference, efi, fuel, harley, injected, mpg, nascar, regulation, sound, sportster
