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Futaba 4PL Setup, Tips, Tricks & Help

Hardline said:
Any tips for getting smoother downhill control? I messed with expo and neutral width, but I don't really know what I'm doing. Other people's rigs are much smoother. Mine picks up speed faster and jerks to a stop when I back off the trigger. Causes the car to tip rear-over.
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Decrease the drag brake and let it slow roll you down the hill. Unless you have Novak, than you're pretty much screwed.
 
WAM said:
Yeah, but maybe an added toggle would be better as it would allow you to use a double momentary action, (assuming that's a good thing). In any event, is my understanding of the process correct?
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Harley said:
The slide switch is what I am planning on modifying. I believe it will work but haven't done it yet, just a lack of time.
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Has anybody done the momentary toggle yet? I'm looking to do this for my winch. The static 3-way makes it difficult to be real precise.

-Brian
 
messiah1 said:
Can anyone explain why you'd want to do what this guy did with his mix? Don't need a 4pk!!! - YouTube
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Some people have done that on their 4PK's (although it is much simpler), however I still have not seen it used a single time in a major competition. It's still a reverse penalty and is a complicated situation.

Overall I don't see the point of programming it. But that's why it's his video and not mine.
 
Harley said:
Some people have done that on their 4PK's (although it is much simpler), however I still have not seen it used a single time in a major competition. It's still a reverse penalty and is a complicated situation.

Overall I don't see the point of programming it. But that's why it's his video and not mine.
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But what would be the need to have your truck do that? Is it for downhilling?
 
808DA6 said:
Has anybody done the momentary toggle yet? I'm looking to do this for my winch. The static 3-way makes it difficult to be real precise.

-Brian
Click to expand...

I had a somewhat quick look at using SW2 for this, but it wouldn't be simple. I found the SW2 switch datasheet (I don't have the info on hand though) and when in the center position it applies the common signal to a third pin. I haven't verified that the 4PL uses this center signal but it would make sense that they do. If someone finds a momentary toggle that can do this then it would work.

Another option is to replace the dial pot with a SPDT toggle with resistors.

I also looked at using one of the thumb operated DTs to replace SW2 or the dial which would be my preference, but because the DTs are two buttons on PCBs it just complicates things.

Maybe e-mails to Futaba from several owners could convince them to add this feature to a f/w upgrade?
 
Finally decided to splurge and get myself a 4PL. So far I love it! So many options and ways to tweak settings. Been following this thread for ideas.
 
Ok folks. I am now stumped, and could use a little help. I have a 4pl and am running a moa setup with dual mamba micro's. I have only my info lead going into my rx and my servo is running off my bec. Only one of my dual esc's is powering my RX. Tonight While trying to dial in my better laid out smash setup, I plugged everything in and my servo started freaking out. I pulled the non powered esc and started working with just my power source and my servo info lead. When I power up with ecs in channel 2 and my servo lead in power 1, I get this glitch. When I then power only the servo and plug the esc into the B channel it is smooth as butter. What am I doing wrong? Below is a pic of my smash.

8B1C7408-E702-4EBA-9362-48227CE99B3C-2018-0000044474530E62.jpg
 
RickM said:
Ok folks. I am now stumped, and could use a little help. I have a 4pl and am running a moa setup with dual mamba micro's. I have only my info lead going into my rx and my servo is running off my bec. Only one of my dual esc's is powering my RX. Tonight While trying to dial in my better laid out smash setup, I plugged everything in and my servo started freaking out. I pulled the non powered esc and started working with just my power source and my servo info lead. When I power up with ecs in channel 2 and my servo lead in power 1, I get this glitch. When I then power only the servo and plug the esc into the B channel it is smooth as butter. What am I doing wrong? Below is a pic of my smash.
Click to expand...

The problem does not sound like a radio issue, sounds like your wiring. I would hook up a ground to everything as well. It gets more clustered but doesn't sound like you have great conections right now.

Powering everything through the RX is cleaner and easier and really keeps these issues from happening most the time.
 
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