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Decel pop with tbr exhaust and fp3

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Old Aug 29, 2023 | 01:02 PM
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Default Decel pop with tbr exhaust and fp3

Hello.
I have a 2010 Harley-Davidson Dyna Street Bob with a screaming eagle heavy breather, two brothers racing gen 2 megaphone exhaust (recently installed) and fp3 tuner.

I've downloaded the map in the app (Tbr 2-1, standard baffle (also tried the map without baffle and it run worst)), but it have a lot of decel pop and when changing gears (higher or lower gear).

I've already used the settings in the app for the deceleration pop, but the light and medium hardly did anything, only on the highest setting does it seem to improve a bit with the deceleration pop, but affected the fuel milage.
Also checked for leaks and aren't any.

Has anyone with the same exhaust and fp3 had this problem?

uploaded the map to V&H a few days ago and sent them an email, but I'm still waiting for a answer.

Thanks
 

Last edited by Joćo; Aug 29, 2023 at 01:04 PM.
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Old Aug 29, 2023 | 04:46 PM
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the FP3 will not allow you to tune your bike well enough. some exhaust systems will NEVER tune out some decel pops. Get a better tuner and have the bike professionally tuned.
m
 
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Old Aug 30, 2023 | 06:48 AM
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What marco said ☝️ bad map!
 
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Old Aug 30, 2023 | 04:17 PM
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Thanks for your help.

Finally got a answer from V&H.
They advice me to do more 2-3 short autotune sessions to see if the issues go away.
I'll try it again, until I buy a new tuner or get it dynoed.

I know that the tbr being short and open exausth probably will always have some poping, but this is too much.

What tuner do you recomend? Power vision 1?
Do you think that installing something like dk customs thunder torque/lollipop, reducing reversion would also help with the decel pop?
 
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Old Aug 30, 2023 | 05:06 PM
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The best tuner is going to be open for debate. Boils down to two power vision and TTS. If You plan tondo future mods and all that it's a good idea to buy a tuner. I really only have experience with power vision. If it were me I'd do PV run a 3 or 4 auto tunes and it most likely will solve your problems barring any other issues that could cause decel pop (intake/exhaust leaks for instance.) Try To find a local dyno guy and see what he recommends as you might be going to him anyway. I'm sure others will have a valuable opinion to offer as well...
 
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Old Aug 30, 2023 | 07:22 PM
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Sometimes the auto tune will not get rid of the pop, you need to make manual adjustments to get rid of it. Very very rare to not be able to get rid of it.
 
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Old Sep 6, 2023 | 06:19 PM
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Originally Posted by Highclasshobo
The best tuner is going to be open for debate. Boils down to two power vision and TTS. If You plan tondo future mods and all that it's a good idea to buy a tuner. I really only have experience with power vision. If it were me I'd do PV run a 3 or 4 auto tunes and it most likely will solve your problems barring any other issues that could cause decel pop (intake/exhaust leaks for instance.) Try To find a local dyno guy and see what he recommends as you might be going to him anyway. I'm sure others will have a valuable opinion to offer as well...
Thanks.
Since the fp3 worked fine with my previous slip ons (v&h twin slash), I wasn't thinking of investing in a new tuner for now, just when I installinst cams. But if I can't solve the issue with the fp3, I will have to buy the new tuner sooner than expected.
Due to work and weather, I still haven't been able to do the autotune sessions they recommended to try to solve the problem.
Checked again and there are no leaks in the exhaust or intake.
 
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Old Sep 6, 2023 | 06:25 PM
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Originally Posted by Lonewolf176
Sometimes the auto tune will not get rid of the pop, you need to make manual adjustments to get rid of it. Very very rare to not be able to get rid of it.
Thanks.
I still haven't been able to do the autotune sessions.
After doing them, if the problem persists, I will have to upload the map for them to make the adjustments.
 
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