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TuneBoy Power Commander PC3 differences
OK guys I got this from Walt, AKA Hombre originally posted on the R3POWER site that is dedicated to Extracting Maximum Horse Power from the ROCKET.
Walt said to post it on all Rocket Public Forums. This is not a **** stirring session nor am I posting this to start any off colored words about anyone. It is my opinion that this is information all Captains would want to know before they spend their hard earned money on modifications and dyno runs.
I for one will say Thanks Walt!!!!
Below is his post I only made a couple changes which my computer said grammatically were wrong. I of course am just a High school dropout and English was my worst classe. So I do not argue with my computer!
"First off let me state that I'm not trying to get anyone to buy a PC3, but discovery of this might make TuneBoy users rethink loading PC3 dyno tune fuel trim via TuneBoy, and removing the PC3.
When I loaded Todd Nelson's PC3 fuel trim into his tune via TuneBoy, I quickly glanced at the numbers, and they seemed to match, so we loaded the tune and removed the PC3. I suggested that Jerry do another dyno pull just to make sure everything was correct.
Lo and behold, the RWHP dropped by 10, which is a lot! Scratching my head, I carefully studied the fuel trim numbers that TuneBoy imported from the PC3 dyno tune, and while they are close, they ARE NOT exactly the same. This would cause the loss of HP.
I suspect that no one has actually studied their trim numbers or done a second pull after loading fuel trim numbers from a PC3 tune via TuneBoy. Personally, I have kept the PC3 on my bike for the accelerator pump feature. We have discovered that importing fuel trim from a PC3 to TuneBoy is NOT EXACT! This will be bad news for all the guys that borrowed Brian's PC3 for a dyno tune. They no longer actually have the exact fuel trim or the HP/TQ they thought they had, and paid for in their PC3 dyno tune!
My suggestion: buy your own PC3 (or soon PC5) and use it. Please feel free to pass this knowledge on to the "public" R3 forums... but tell 'em you read it here first. "
OK guys I got this from Walt, AKA Hombre originally posted on the R3POWER site that is dedicated to Extracting Maximum Horse Power from the ROCKET.
Walt said to post it on all Rocket Public Forums. This is not a **** stirring session nor am I posting this to start any off colored words about anyone. It is my opinion that this is information all Captains would want to know before they spend their hard earned money on modifications and dyno runs.
I for one will say Thanks Walt!!!!
Below is his post I only made a couple changes which my computer said grammatically were wrong. I of course am just a High school dropout and English was my worst classe. So I do not argue with my computer!
"First off let me state that I'm not trying to get anyone to buy a PC3, but discovery of this might make TuneBoy users rethink loading PC3 dyno tune fuel trim via TuneBoy, and removing the PC3.
When I loaded Todd Nelson's PC3 fuel trim into his tune via TuneBoy, I quickly glanced at the numbers, and they seemed to match, so we loaded the tune and removed the PC3. I suggested that Jerry do another dyno pull just to make sure everything was correct.
Lo and behold, the RWHP dropped by 10, which is a lot! Scratching my head, I carefully studied the fuel trim numbers that TuneBoy imported from the PC3 dyno tune, and while they are close, they ARE NOT exactly the same. This would cause the loss of HP.
I suspect that no one has actually studied their trim numbers or done a second pull after loading fuel trim numbers from a PC3 tune via TuneBoy. Personally, I have kept the PC3 on my bike for the accelerator pump feature. We have discovered that importing fuel trim from a PC3 to TuneBoy is NOT EXACT! This will be bad news for all the guys that borrowed Brian's PC3 for a dyno tune. They no longer actually have the exact fuel trim or the HP/TQ they thought they had, and paid for in their PC3 dyno tune!
My suggestion: buy your own PC3 (or soon PC5) and use it. Please feel free to pass this knowledge on to the "public" R3 forums... but tell 'em you read it here first. "
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