difference on fuel tuners/power commanders ??

[R_W_B]

Originally Posted by bosco

Certainly not an expert, but found this video that explains how the powerpro works without an O2 sensor. Its in the second part after the fi2000 explaination. In short, it uses the engines crank shaft as a continuous dino making adjustments based on the engines feedback. The speaker does a better job explaining the tuners process.
http://www.youtube.com/watch?v=-EMd5...e_gdata_player

Originally Posted by KenDawg

RWB,

I am not an engineer so I will refrain from pretending to be able to explain the process with any accuracy. I refer you to the company that manufactures Cobra's PowerPro autotuner via Bosco's posted video. Ride safe.

I asked and you gave. I thank you for that. This does sound interesting, it's the first I've heard of it. I haven't had time to investigate this yet, but just listening to them I can see how it could auto adjust on acceleration and load scenarios. For idle and cruise it would still not be able to autotune with this technology.

I'm gonna see if I can find some folks that have run these awhile, with various setups. I know some human Dyno tuners have trouble with certain pipes (like Rineheart) but a knowledgable dyno man can tune "any" bike, because they've learned what cells to go after in a certain power band. So I'm anxious to see how "good" the Cobra algorithym is at dyno-ing various setups.

I must admit though this does sound promising. The price I heard on the video was over $5xx, and I surmise there are resellers selling it for less. For someone that changes their setup over time, this would be a good investment. For my Nomad, I'm still with the PCV with Ignition as my best bang for the buck.

Thanks bosco and KenDawg, that was an informative video.
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Sojourner wrote ->Just a point of information, Doebeck makes the circuit boards for Cobra for their Fi2000 Powrpro.<-

Sojourner, I did not know that, but I did know that Doebeck also started the Power Commander company and later sold it to Dynojet.

Doebeck has been around, they will do anything that makes money (including selling a current venture).

[bosco]

Originally Posted by R_W_B

I asked and you gave. I thank you for that. This does sound interesting, it's the first I've heard of it. I haven't had time to investigate this yet, but just listening to them I can see how it could auto adjust on acceleration and load scenarios. For idle and cruise it would still not be able to autotune with this technology.

I'm gonna see if I can find some folks that have run these awhile, with various setups. I know some human Dyno tuners have trouble with certain pipes (like Rineheart) but a knowledgable dyno man can tune "any" bike, because they've learned what cells to go after in a certain power band. So I'm anxious to see how "good" the Cobra algorithym is at dyno-ing various setups.

I must admit though this does sound promising. The price I heard on the video was over $5xx, and I surmise there are resellers selling it for less. For someone that changes their setup over time, this would be a good investment. For my Nomad, I'm still with the PCV with Ignition as my best bang for the buck.

Thanks bosco and KenDawg, that was an informative video.
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Sojourner wrote ->Just a point of information, Doebeck makes the circuit boards for Cobra for their Fi2000 Powrpro.<-

Sojourner, I did not know that, but I did know that Doebeck also started the Power Commander company and later sold it to Dynojet.

Doebeck has been around, they will do anything that makes money (including selling a current venture).

I have had mine approx 8 months and love it. Could feel the difference immediately. From what I have read and understand about the PowrPro, it continues to measure the crank feedback, even in idle & cruise. Most likely only making minimal adjustments. All I know is I really like it and how it's performing for my bike and set up.

As for pricing, just shop around. I purchased mine at Cli-MAX Riding Gear for $460.

http://www.cli-maxridinggear.com/ser...ro-Auto/Detail

If you get dyno results, would like to see. Would be good to see it on paper.

[Sojourner]

The one suggestion I have for anyone bring their bike to a dyno shop after installing the Cobra Powrpro is this. The Powrpro doesn't have a map nor a memory of any previous rides. When the bike is restarted the Powrpro takes about a quarter to half mile to re-learn the bike. This means that on the dyno you won't see any meaningful real results unless the bike has been ridden beforehand and the engine isn't shut off when placed on the dyno. It's possible, I suppose, you could use the kill switch not the ignition switch when you get to the dyno shop and the memory of the recent ride isn't lost. It's a PITA but that's the only way to see if there's any improvement over stock.