Closed loop fuel management system
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Cruiser
Joined: Oct 2013
Posts: 162
Likes: 1
From: Knoxville, IA
Closed loop fuel management system
Has anyone used this type? RC Components makes one. $400.00 and you can have one. They claim you dont have to map anything, no downloads, or dyno tuning using this. Im not familiar with these and wondering if they give you more power than other types or what happens here? You can add intakes, exhaust, etc without worrying about your fuel/air set-up. Anyone have any experience with these? I would have posted on the "Fuel/Intake/Exhaust" page, but it only shows about 5 threads for me. Although it says 18,000+, so I dont think thats right.
Here's a link for RC Components, hopefully it works. http://rccomponents.com/rcxhaust/pro...-celerator.htm
Thanks!
Here's a link for RC Components, hopefully it works. http://rccomponents.com/rcxhaust/pro...-celerator.htm
Thanks!
Road Captain
Joined: Sep 2013
Posts: 572
Likes: 18
From: Rochester NY
What's the difference between down loading maps and these closed loops?
MODERATOR
Joined: Oct 2007
Posts: 4,108
Likes: 1,964
From: New England
If you're asking whether the PV or TTS is better, I think many will tell you it's personal preference.
I'm not sure what you're trying to compare.
Closed loop is simply the ECM's components providing enough feedback so the ECM can make certain adjustments. The same ECM can be set to use the input from its various components (closed loop) or set to ignore the feedback (open loop).
There are advantages to using either...one needs to simply understand the differences, what's gained, and what's given up.
Closed loop is simply the ECM's components providing enough feedback so the ECM can make certain adjustments. The same ECM can be set to use the input from its various components (closed loop) or set to ignore the feedback (open loop).
There are advantages to using either...one needs to simply understand the differences, what's gained, and what's given up.
Cruiser
Joined: Jun 2013
Posts: 149
Likes: 1
From: Cleveland
Here is my review and experience with the plug and play COBRA FI2000 Power Pro tuner which is a "closed loop" tuner as you describe but does not change the map of the ECM.
https://www.hdforums.com/forum/touri...ence-dyno.html
Maybe that will shed some light.
Goodluck!
https://www.hdforums.com/forum/touri...ence-dyno.html
Maybe that will shed some light.
Goodluck!
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Grand HDF Member
Joined: Jan 2012
Posts: 4,445
Likes: 2,810
From: Oklahoma
If you have a stock machine (no reprogramming or add on tuners) with O2 sensors, you have a closed loop system. The after market tuners typically are less expensive than either paying for a reflash at the dealer of buying your own SERT (Screaming Eagle Race Turner) and doing it yourself. The least expensive add ons put resistors (I believe) between the O2 sensors and the ECM to, in effect, lie to the ECM getting it to slightly enrich the mixture in closed loop operation.
Closed loop allows the computer to adjust for changes in conditions. Cold air is more dense than warm air, the computer can adjust for that. In the mountains, the air is less dense than at sea level and the computer can adjust for that. The tuners which disable closed loop remove the computer's ability to make those fine adjustments and sort of simulate having a carburetor. A standard carburetor can not adjust for temperature or altitude. In one of the steps toward modern fuel injection systems, cars had electrically controlled carburetors which were capable of making real time adjustments through computer control. They were only a 3 to 5 year intermediate step and the ones I had were rather trouble prone. I don't believe any motorcycles ever used that system.
Closed loop allows the computer to adjust for changes in conditions. Cold air is more dense than warm air, the computer can adjust for that. In the mountains, the air is less dense than at sea level and the computer can adjust for that. The tuners which disable closed loop remove the computer's ability to make those fine adjustments and sort of simulate having a carburetor. A standard carburetor can not adjust for temperature or altitude. In one of the steps toward modern fuel injection systems, cars had electrically controlled carburetors which were capable of making real time adjustments through computer control. They were only a 3 to 5 year intermediate step and the ones I had were rather trouble prone. I don't believe any motorcycles ever used that system.
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Yeah, I kind of thought that myself. "$400 and you can have one" sounds like an advertisement. I have known of people who used this system and it is OK if you are just doing pipes and air cleaner. For more than that it didn't work so well.
From Direct Cycle Parts you can have a Power Vision for $420. Then you have the ability to adjust for almost anything and build as far as you like. You can also download a map that is good for ac and exhaust. You can auto-tune with the stock O2 sensors or add the Pro Auto-tune with wide band O2 sensors. In my opinion (I am using one) they are superior to any other system I have tried. (Thunder-Max, PCV, EMS, Daytona TwinTech) All the other systems worked, just not as well as the Power Vision.
Did that sound like an advertisement?
From Direct Cycle Parts you can have a Power Vision for $420. Then you have the ability to adjust for almost anything and build as far as you like. You can also download a map that is good for ac and exhaust. You can auto-tune with the stock O2 sensors or add the Pro Auto-tune with wide band O2 sensors. In my opinion (I am using one) they are superior to any other system I have tried. (Thunder-Max, PCV, EMS, Daytona TwinTech) All the other systems worked, just not as well as the Power Vision.
Did that sound like an advertisement?