2to1 tune question
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Road Warrior
Joined: Jun 2014
Posts: 1,297
Likes: 57
From: N. IL
2to1 tune question
I had my bike Dyno tuned with powervision 3yrs ago, on decatted factory header. assuming I'm going to lose my original Dyno tune. question.......
If I switch to 2to1 pipe, what's the difference between calling fuel Moto and having them send me a new map vs another Dyno tune?
If I switch to 2to1 pipe, what's the difference between calling fuel Moto and having them send me a new map vs another Dyno tune?
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,143
Likes: 11,212
From: San Diego, CA
I had my bike Dyno tuned with powervision 3yrs ago, on decatted factory header. assuming I'm going to lose my original Dyno tune. question.......
If I switch to 2to1 pipe, what's the difference between calling fuel Moto and having them send me a new map vs another Dyno tune?
If I switch to 2to1 pipe, what's the difference between calling fuel Moto and having them send me a new map vs another Dyno tune?
Are you only changing the exhaust....?? Do you own the PowerVision tuner, or did you just buy a license and have it tuned with the dyno operator's PowerVision tuner....?
If the dyno guy owns the PowerVision tuner, go back to him and let him dial it in. It shouldn't take too long to dial in the tune. The exhausts have different characteristics, but the tunes will be close, all else being equal... This would be the quickest and best (if you have a good dyno guy) option whether you own the tuner or not... but will cost some money
If you own the PowerVision, bought it from FuelMoto, and want to have a little fun.....
The tune you have now should be close to the tune you need... I would save a copy of your current dyno tune. Then I would use it to run a couple auto tune runs. Note how it runs with that new tune. Note where it's deficient, or you feel it needs some help. Then take it out and do some data logging. You can then send the tune to FuelMoto, with your changes, the datalog, and where you feel the tune is deficient. They will send back a better tune.... you can then try that tune and see if you can save the money on another dyno tune...
Good luck with your decision..
Thread Starter
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Road Warrior
Joined: Jun 2014
Posts: 1,297
Likes: 57
From: N. IL
Are you only changing the exhaust....?? Do you own the PowerVision tuner, or did you just buy a license and have it tuned with the dyno operator's PowerVision tuner....?
If the dyno guy owns the PowerVision tuner, go back to him and let him dial it in. It shouldn't take too long to dial in the tune. The exhausts have different characteristics, but the tunes will be close, all else being equal... This would be the quickest and best (if you have a good dyno guy) option whether you own the tuner or not... but will cost some money
If you own the PowerVision, bought it from FuelMoto, and want to have a little fun.....
The tune you have now should be close to the tune you need... I would save a copy of your current dyno tune. Then I would use it to run a couple auto tune runs. Note how it runs with that new tune. Note where it's deficient, or you feel it needs some help. Then take it out and do some data logging. You can then send the tune to FuelMoto, with your changes, the datalog, and where you feel the tune is deficient. They will send back a better tune.... you can then try that tune and see if you can save the money on another dyno tune...
Good luck with your decision..
If the dyno guy owns the PowerVision tuner, go back to him and let him dial it in. It shouldn't take too long to dial in the tune. The exhausts have different characteristics, but the tunes will be close, all else being equal... This would be the quickest and best (if you have a good dyno guy) option whether you own the tuner or not... but will cost some money
If you own the PowerVision, bought it from FuelMoto, and want to have a little fun.....
The tune you have now should be close to the tune you need... I would save a copy of your current dyno tune. Then I would use it to run a couple auto tune runs. Note how it runs with that new tune. Note where it's deficient, or you feel it needs some help. Then take it out and do some data logging. You can then send the tune to FuelMoto, with your changes, the datalog, and where you feel the tune is deficient. They will send back a better tune.... you can then try that tune and see if you can save the money on another dyno tune...
Good luck with your decision..
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,143
Likes: 11,212
From: San Diego, CA
Then I would suggest part two of my post... do some auto tuning and if not good enough, send data logs to FuelMoto with your needs....
Good luck....
Road Warrior
Joined: Feb 2009
Posts: 1,274
Likes: 130
From: Now Western TN
You are going to want to do what Hattitude suggested if you are going from a stock header to a 2-1 pipe. I did the same thing on my 107 build and just needed to run several autotune sessions to find the delta's, from there I just ended up tweaking the maps until the changes in the autotune runs were minimal. But the original tune didn't run well with the addition of the 2-1, if I remember right the biggest change was to correct decel popping
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