Vance & Hines FP3
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Cruiser
Joined: May 2014
Posts: 239
Likes: 1
From: Temecula CA
Vance & Hines FP3
I see a lost of posts how the V&H FP3 tuner isn't a good buy, doesn't tune well, etc but I just got one for $290 new, plugged it in, installed a map with my phone....bike runs amazing ! But mainly, ALL decel popping is gone. I was trying to get it to pop (hard decel , not just cruising) and it wouldn't.
I have short shots, quiet baffles with smartpatz installed and an RSD air cleaner. I was hoping the smartpatz didn't cause an issue with the mapping but it probably helped (more back pressure?)
Anyway, for what it's worth, the FP3 worked nicely and worth the cash IMO.
I have short shots, quiet baffles with smartpatz installed and an RSD air cleaner. I was hoping the smartpatz didn't cause an issue with the mapping but it probably helped (more back pressure?)
Anyway, for what it's worth, the FP3 worked nicely and worth the cash IMO.
Outstanding HDF Member
Joined: May 2014
Posts: 3,410
Likes: 143
From: Palm Desert,CA
That's great to hear! I've been happy with mine as well, although I still have a little decel popping (which I'm told is next to impossible to tune out completely). I've done the autotune as well. Bike is definitely more smooth overall.
I would say having used absolutely nothing other than the FP3 (so having virtually no credibility at all), that the FP3 is perfectly good at what it's designed for; To be a mid level flash tuner for those that are looking to get better performance with their stage 1 changes.
I would say having used absolutely nothing other than the FP3 (so having virtually no credibility at all), that the FP3 is perfectly good at what it's designed for; To be a mid level flash tuner for those that are looking to get better performance with their stage 1 changes.
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Cruiser
Joined: May 2014
Posts: 239
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From: Temecula CA
Well there is the popping & then the normal harley deceleration burping. Not sure I'd call it popping though but when people say its impossible to tune completely out I think they are hearing that? Mine still has that and has had it since its been off the dealership lot, but it's not a popping.
I think if you have a distinctive popping then there may be a small exhaust leak or it's just not tuned 100%. I've read V&H will send you a custom map to your phone to get rid of any issues like that. They just adjust the decel fuel settings some I believe.
I think if you have a distinctive popping then there may be a small exhaust leak or it's just not tuned 100%. I've read V&H will send you a custom map to your phone to get rid of any issues like that. They just adjust the decel fuel settings some I believe.
Outstanding HDF Member
Joined: May 2014
Posts: 3,410
Likes: 143
From: Palm Desert,CA
hmm I'll check into that. I'm not sure how I would characterize it, definitely when I let off the throttle or decel down a hill, slight popping. The pipes I have are made by V&H and so were included in the maps. I didn't have the sound with the stock pipes even after I used the FP3. Canned map I noticed it a bit, did the auto tune and it helped some. I figured it was pretty normal. I had my 1000 mile service done and I asked him to check for leaks since I did the install myself, but he said it was perfect (yay for me).
I'll give them a shout on Monday, maybe they'll be able to help, it's not what I'd consider to be bad though.
I'll give them a shout on Monday, maybe they'll be able to help, it's not what I'd consider to be bad though.
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Cruiser
Joined: May 2014
Posts: 239
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From: Temecula CA
If I remember correctly you can go into your phone and change the maps Decel enrichment. If it's popping then it's too lean. I read that you take it down 1 at a time, test drive it, take down 1 more, test. Etc until its gone. But you can't go too low because it's cutting off fuel on decel and when you go too low the bike will stall. At that point you know you went too low obviously.
So basically copy your map to an empty slot, change just the decel enrichment and save. Then load it to your bike. Since this is a copied map you can always just go back to your original map.
If its hardly popping now then you may just be 1 setting away from no popping at all.
So basically copy your map to an empty slot, change just the decel enrichment and save. Then load it to your bike. Since this is a copied map you can always just go back to your original map.
If its hardly popping now then you may just be 1 setting away from no popping at all.
Im not so sure about that. If its popping then that means its running rich and the popping is the unburnt fuel exploding in the exhaust. The FP3 leans out the richness thus removing the popping.
Road Captain
Joined: May 2008
Posts: 588
Likes: 199
From: Danbury Connecticut
The Fp3 is a great tuner for a stage one and has great tech support.. They say they are working on maps for when people want to add cams!!! Some people will bash a product to make them self feel better about a different product that they are using!!!
Now my first bike I had it Dyno tuned and I know what to expect from a tuned bike. When I bought my second bike I didn't want to spend 500 on a tuner and another 300 to 400 on a dyno tune..... the Fp3 was a perfect solution. I can tell you that my bike runs great and I never used the auto tune feature.... There are other tuners that allow you to record your map and make adjustments. But for me that would only get me into trouble!!!! There are different tuners because people have different needs.... hope this helps.....swifty
Now my first bike I had it Dyno tuned and I know what to expect from a tuned bike. When I bought my second bike I didn't want to spend 500 on a tuner and another 300 to 400 on a dyno tune..... the Fp3 was a perfect solution. I can tell you that my bike runs great and I never used the auto tune feature.... There are other tuners that allow you to record your map and make adjustments. But for me that would only get me into trouble!!!! There are different tuners because people have different needs.... hope this helps.....swifty
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Outstanding HDF Member
Joined: May 2014
Posts: 3,410
Likes: 143
From: Palm Desert,CA
If I remember correctly you can go into your phone and change the maps Decel enrichment. If it's popping then it's too lean. I read that you take it down 1 at a time, test drive it, take down 1 more, test. Etc until its gone. But you can't go too low because it's cutting off fuel on decel and when you go too low the bike will stall. At that point you know you went too low obviously.
So basically copy your map to an empty slot, change just the decel enrichment and save. Then load it to your bike. Since this is a copied map you can always just go back to your original map.
If its hardly popping now then you may just be 1 setting away from no popping at all.
So basically copy your map to an empty slot, change just the decel enrichment and save. Then load it to your bike. Since this is a copied map you can always just go back to your original map.
If its hardly popping now then you may just be 1 setting away from no popping at all.
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Thread Starter
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Cruiser
Joined: May 2014
Posts: 239
Likes: 1
From: Temecula CA
Well he k that's freaking awesome. Didn't realize I could adjust maps (hadn't spent much time with it yet). Just went downstairs and adjusted each decel value by .1 (figured that would lean it). Went for a quick downhill test ride and almost all popping gone, just twice where I basically shut throttle fully on a downhill stretch I got one decent pop each. Shame that I don't understand what each line means so I could adjust the one I need. Don't want to screw up my engine so going to go do some research on how these charts work. Very enthused though
Thread Starter
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Cruiser
Joined: May 2014
Posts: 239
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From: Temecula CA
Here's something I googled that seems to explain better.
>>
You start out with an engine that is turning high RPM with a carb that is open, flowing freely. Next, you close that slide. This has the effect of creating a tremendous vaccuum in the intake manifold (CHOKE!). This vaccuum does curious things:
1. It pulls air and fuel from wherever it can--including the idle and low speed jetting in the carb.
2. To counteract the vaccuum, air will take the path of least resistance--including sucking exhaust gases back into the combustion chamber during valve overlap (the brief period of time that the exhaust and intake valves are open at the same time.
So what does this mean? Well, now you have a disproportionate rich mixture heading for the cylinder AND what little oxygen is drawn in is further diluted by gases that are coming back into the chamber from the exhaust valve. The result is poor, incomplete combustion! Depending on the temperature of the exhaust pipe and gases, reignition is possible once this mixture is introduced into a more oxygen rich environment. This produces the "pop."
Why does a lean running engine have a tendency to excessively pop? The exhaust gas temperature of a lean engine is substantially higher than one that is running on the rich side ( an EGT probe will show this). Therefore, the high EGT serves to heat the pipe more and the gases themselves become a much better source of re-ignition. By richening things up, you are cooling down the exhaust temp and therefore reducing potential re-ignition sources.
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