I haven't had that happen, and considering that everything computer controlled needs a reboot now and then, but one thing did happen to me. turned on the radio, turned on the car, put it down, hit the gas, and nothing happened. After a brief WTF moment, I realized I didn't change the model on the radio. Interesting because on my 3PK if I did that the car would go but the settings wouldn't be correct.

I seem to remember reading that the 4PX can maintain the association between the model selected and the RX. So if it is talking to the wrong receiver
you car will not respond to the input. Which is a good fail safe but can be annoying if you are unaware.

I think only the T-FHSS receivers isolate, the S-FHSS receivers will work between models sharing the S-FHSS receiver types.

Anyone know the dimensions of the 4PX?

Its not actually stated anywhere, I know its an awkward shape but looking for its widest, longest and deepest points. Due to its shape, the only way to measure would be to drawer around it from above and measure the subsequent piece of paper.

After a case but not a flash over priced aluminium one. I know I have seen a few use pelicans with cut outs but I think there are smaller cases that fit a bit more neatly.

Thanks

Just measured mine with drop down fitted, these are absolute measurements. do not get a case that size of you will have no room for padding.

9" x 7" x 5.5"

or

230mm x 180mm x 140mm

I've got a few questions,

First a quick background,
I've always loved Futaba's products. I have been using (don't laugh) a Futaba 2pl ...been using it for about 7 or 8 years. I use it for all my cars + trucks, for bashing and racing (I race w/ a club). It has served me well and still works great. I actually have no complaints with it at all.

I have been thinking about upgrading to a new controller, it will have to work with FHSS (as all my receivers are FHSS and I do not care to spend a fortune buying 10 new receivers). Here is my question, are the newer Futaba controllers better in terms of performance? I get that they have extra features, and an easier interface to navigate ..but will they make my car driving performance increase. I feel like my car responds well now, but does an improved controller make a car respond better? I ask because I am trying to figure out if a new controller is worth the cost?

Looking at new controllers that run on the FHSS system there are two I see as contenders:

futaba 4pls -sells for about $200 w/ coupon codes, etc
futaba 4px -sell for about $500 w/ coupon codes, etc

So, the 4pls seems like a much better deal than the 4px ...is the extra $300 worth the price? Curious if even spending $200 for the 4pls is worth the price if my current controller works well.

...having only used 1 or 2 controllers in the past 10 years its difficult to access any differences in controller performance.

What receivers are you using with the 2PL? The R603GF and R2004GF are FHSS, and not S-FHSS, thus only compatible with the 4PLS and not the 4PX.

http://www.futaba-rc.com/receivers/f...ss-compat.html

For your speed question, if you use a T-FHSS receiver with the 4PX, you will notice a difference. A FHSS receiver with the 4PLS, maybe not.

As for cost, I always answer it like just; at some point you reach the laws of diminishing returns. To approve upon already good designs, takes exponentially more effort/better materials, etc. Most $200+ radios have mostly the same features, so other things matter. For me personally, the "feel" of the radio is probably the most important thing. That's why for someone looking for a mid-level radio, I typically recommend the MT4 over the 4PL, because I like the feel of the MT4 more. But there's no radio out right now that "feels" as good in hand as the 4PX.

I have a problem with my Orion ESC and motor. The Motor is running backwards instead of forward. I calibrated and I have it on my XB4 4WD I try to reverse the channel 2 on my radio but it still running reverse. The manual of the Orion ESC does not help. I am using a senor wire and solder the cable A B C but still running the wrong way. Can anyone help me..

THanks

Hi Hulk, I use an Orion ESC with a 4PX, I had to reverse channel 2 and it worked fine. I wonder if your setting is working correctly? Try reversing the steering to see if it has the desired effect there too.

Orion ESC does not have any ability to reverse its control unfortunately so the only way to do it is through wiring or transmitter I believe.

It has nothing to do with your radio or esc.
Take the front diff and flip it over. Same with the rear. Your problem will be solved.

can you set up a dual rate on the throttle channel with a momentary switch to change rates? i know how to do it on steering channel.cant do it on throttle. i want like 60 percent on the infield and then hold down the chrome button on the handle for 100 percent for the straight.

Thank you, I did not realize that the 4px will not run the FHSS receivers ...and only the FHSS-S receivers.

I am running all FHSS receivers (7 vehicles). So going to the 4px would cost me about $1,000 or more to get everything upgraded. That really isn't in my budget at the moment. ...good to know, thanks!

OK question more for nitro racing. I got a Lipo 2S receiver pack for 1/8 buggy and I will not need any kind of voltage regulator correct? I don't exactly see a lot of voltage regulator devices on stores websites like maybe 6 to 8 years ago.

Receivers are listed as 4.8 to 7.4V battery (3.5 to 8.4V useable range)


Does the servos see the voltages up to 8.4V or does the receivers limit voltages to servos? Most servos list 4.8V and 6.0V specs on speed and torque.

I didn't realize it either. That said any on this list will work.
This is directly from futababs website

"Compatible with these T-FHSS, S-FHSS and FASST receivers: R304SB, R304SB-E, R614FS, R614FF-E, R2104GF, R204GF-E, R203GF and others as they are developed."

..interesting, I actually have 2 "R203GF" receivers and the 4 "R603GF" receivers ..so i believe that RCMart has a combo package for about $550 that comes w/ 2 of the compatible receivers. ...arggh, trying to determine if its worth the money!