i would argue that what you had set up at first is closer to what you want to have. 75% positive expo feels pretty good and IMO a good starting point. reason for this: when you are going around a corner, you arent stopped, you are rolling at some speed, atlest 30% in the slowest of 180 corners. if you set your radio to be linear, your first 30% of throttle will provide no imput in speed (if the car is already going 30% of its speed and you give it 30% throttle, its not gaining anything it will stay that same speed) also because of weight, drag, loading etc, even if you give 30% throttle you dont get 30% power right off the bat, the esc, motor, battery have to overcome all that. so if you were at a dead stop and went up to 30% throttle, its not instantly at 30% wheel speed. so getting to the point. by having a positive expo that is fairly aggressive like 75% or higher you end up with greater throttle control. if you do not have any speed delay on the channel (where it delays the input - you pull full throttle instantly, but using speed delay on the throttle channel causing a linear ramp up from 0-100% in a delayed time of say .3 seconds making it ramp in to 100% in .3s time) when you pull full throttle, your telling the esc to give full throttle. so even if you have no expo, negative expo or positive, when you pull 100%, the esc is gonna give 100% this does not change. by having a positive expo does this for you, you start to pull the trigger and because of the aggressive ramp in this is whats happening (values arent correct, its a general idea of whats happening): 5% throttle on controller: sending around 20% to the esc 8% throttle on controller: sending around 28% to the esc 10% throttle on controller: sending around 32% to the esc (at this point we are around the slowest speed you be going around a corner) 12% throttle on controller: sending around 35% to the esc 14% throttle on controller: sending around 37% to the esc 16% throttle on controller: sending around 39% to the esc 17% throttle on controller: sending around 40% to the esc (getting around more common speeds for slower corners) this isnt exactly a correct values but im getting a point across here. at 17% throttle input you are at 40% of the esc power, this is about the lowest you back off to on a track when racing, other then this you are off throttle. i now have 83% of my throttle travel to control the remaining 60% of my esc. if this was linear i would be at 40% of my throttle throw rather then 17% i now have a wider range of throttle throw to control the power to the wheels. also as pointed out in the video graph, the further the throttle is to 100% the more it is reduced. its flattening out. this means your higher end of your throttle is now going to be smoother, if going to be easier for you to control higher speed throttle like in a series of fast corners or how you need to back off alittle throttle for a corner. similar to how using negative steering expo will give you more finer input for corrections on the straight, having positive expo for throttle will make you have more control of the input to the esc
Gosh... That's an amazing reply with much more detail and understanding over "Throttle Exponential" than I have... Firstly thank you for taking the time to put so much effort into a response this will undoubtedly help others including myself... Secondly as my experience has grown from when this video was first made I have experimented with different settings of expo now and am now able to notice subtle changes between the percentages which I didn't before as my Racing and driving experience was limited as a newbe..... I am still of the opinion that as a inexperienced racer encountering the same or similar problems that I had my suggestions in the video are if not the correct way to go be a very good starting point .. But again as my experience has grown I have and continue to change this setting to be more aggressive as my understanding has grown on mechanical car set up and how changes here effect grip etc and my confidence to change things and understand why I am changing things has greatly improved.. Thanks so much for watching and reply have a fabulous day and 2024...
i had a futaba radio that showed this on the display. 4pk or someting like that. very early in my rc career. it was very helpful and you are spot on with your discription.
Linear is the word your looking for I think at 50% . I use the same Futaba controller and I understand you . I gotta try it myself I’m a bit of a newby also .
The values may differ between radios. On the Noble NB4 zero is linear, and negative expo softens the initial acceleration. You can also add delay to the throttle in the radio similar to the ESC's punch setting.
That was informative, I have the FlyskyGT3B, I believe it has expo so I'll test my Ftx Zorro on this tiny asphalt bike track with 50% expo to see if it handles better. Thanks again
How did your tests go? I recently tried messing about with the settings on my Flysky GT3C and it’s worked wonders….so much so, I’ve now dialled in the different cars I race accordingly (so 01e, m06, m03 and Group C Merc C11)
Zero throttle and steering expo would normally be the default on most radios which would normally be a curve like you showed. The steering expo is even more important than the throttle expo. It's a curve so ideally you don't want to run too much of either, as a stick radio person who races mod TC I run about -45-50% st expo and maybe -10% throttle expo, with a wheel you tend to not need as much negative steering expo. I also turn the steering speed down a little via the radio which some radios have
@@BrensRCracing no problem, the main reason for having a digital radio for racing is for the steering expo/curve the smaller the vehicle the more important it becomes
For throttle it depends on track conditions. For on-road I guess the value 50 and above work well, because of more instant power on high grip/traction surface. However for offroad on a surface that is wet or has low grip, you do not want full power instant on the wheels. Because that makes the wheels spin, but not move your car forward. So with negative exp on throttle the traction build up is better out of the corner and the car is more drivable. Same experience like when driving a regular car on snow or ice.
IV had same problems blame everything nearly except failure and give up just tried exp 50 per racing tomorrow let you know also set steering at 50 so I don't jab on to quick out of corners (in theory) but you do make sense thank you Chris h
@@BrensRCracing yep it worked laps went up double may open up to +65next meeting and play with it I have -/+ expo so I take it 0 is linier I'm running at +50 and feathering the throttle but works well .... thanks
The 3PV is just like all Futaba Radios, plus (+) Expo is like your first curve and minus (-) Expo is like your second curve. Zero (0) Expo is a straight line.
Just found this. This could be the solution to a lot of my issues….just can’t keep the car either straight out a corner or off power (probably got brake set too high there). But I know the car has grip, I just can’t get it down
@@BrensRCracing for throttle that's just what I found that's drivable, we're running 6000kv brushless motors on them that are almost too fast, definitely faster than the 21.5s. You really have to be fine on the controls with those little cars to make it round the track much less actually turn decent lap times. I think they'd be much more easier on carpet but on a decent size clay track they are a challenge.
If it didn’t flips the imagine for front facing because your your looking at your camera live. If it didn’t flip the image it would be confusing because the left side of the screen would be actually the right side in real life. Just like if you were standing face to face with someone. Their right side is on the left side of your vision. So you can imagine if you were filing yourself and the imagine was flipped it would be hard for you to make adjustments because rights and lefts would all be flipped.
@@BrensRCracingit’s exactly the same as what happens when you hold up any writing in a mirror - it’s reversed. Just like the ancient large format cameras with bellows and you get under the black sheet. The image is both reversed left to right and also upside down. The only reason people are so used to seeing things right side up and not reversed is because of the pentaprism in regular slr cameras over the years.
I may have misunderstood but it seems Your chart is wrong I’m afraid my friend. The standard default setting for exponential is 0 you can change it to either plus or minus 100 0 EXP is a linear line
Cheers for the input and it wouldn't surprise me if it's wrong still lots to learn but hopefully the video helps with understanding some of the options that are available to better control how the car responds to different inputs 👍👍
Very interesting 👍🏻 What was the outcome at the next meet ? Did you find the car generally more tractable and neutral out of turns etc after your adjustments ?
Yes without question my driving improved immediately.....the car has stopped trying to do a donut when full gas out of every corner and the car feels more planted and predictable.....
In fairness being a complete novice at the time pal I can't be 100% sure it wasn't user error to start with😂 Just hope it helps more novices like me thanks for taking the time to watch and comment it's appreciated 👍
@@Wobhead Well worth having a look at the settings mate ......honestly made my car so much easier to drive .....and from there i can tweak it more on the day to find the ideal setting.....(Honestly just glad it made sense)🤣🤣
Mine works exactly how he explained also. Some people are just ignorant ,pissed off at their own life , and never have anything nice to say, which is why they never have any good in their life. Great video my friend. Cheers. And remember when people are mean and jealous it’s because you have something they wish they had.
He definitely lives on earth you fucking idiot. His video matches exactly my controller 100% so who’s the person that doesn’t know him or you? You should rethink this and next time don’t comment you don’t know what the fuck you’re talking about 100%. Have a great day. You’re the one that looks stupid not him.
i would argue that what you had set up at first is closer to what you want to have. 75% positive expo feels pretty good and IMO a good starting point. reason for this: when you are going around a corner, you arent stopped, you are rolling at some speed, atlest 30% in the slowest of 180 corners. if you set your radio to be linear, your first 30% of throttle will provide no imput in speed (if the car is already going 30% of its speed and you give it 30% throttle, its not gaining anything it will stay that same speed) also because of weight, drag, loading etc, even if you give 30% throttle you dont get 30% power right off the bat, the esc, motor, battery have to overcome all that. so if you were at a dead stop and went up to 30% throttle, its not instantly at 30% wheel speed.
so getting to the point. by having a positive expo that is fairly aggressive like 75% or higher you end up with greater throttle control. if you do not have any speed delay on the channel (where it delays the input - you pull full throttle instantly, but using speed delay on the throttle channel causing a linear ramp up from 0-100% in a delayed time of say .3 seconds making it ramp in to 100% in .3s time) when you pull full throttle, your telling the esc to give full throttle. so even if you have no expo, negative expo or positive, when you pull 100%, the esc is gonna give 100% this does not change. by having a positive expo does this for you, you start to pull the trigger and because of the aggressive ramp in this is whats happening (values arent correct, its a general idea of whats happening):
5% throttle on controller: sending around 20% to the esc
8% throttle on controller: sending around 28% to the esc
10% throttle on controller: sending around 32% to the esc (at this point we are around the slowest speed you be going around a corner)
12% throttle on controller: sending around 35% to the esc
14% throttle on controller: sending around 37% to the esc
16% throttle on controller: sending around 39% to the esc
17% throttle on controller: sending around 40% to the esc (getting around more common speeds for slower corners)
this isnt exactly a correct values but im getting a point across here. at 17% throttle input you are at 40% of the esc power, this is about the lowest you back off to on a track when racing, other then this you are off throttle. i now have 83% of my throttle travel to control the remaining 60% of my esc. if this was linear i would be at 40% of my throttle throw rather then 17% i now have a wider range of throttle throw to control the power to the wheels. also as pointed out in the video graph, the further the throttle is to 100% the more it is reduced. its flattening out. this means your higher end of your throttle is now going to be smoother, if going to be easier for you to control higher speed throttle like in a series of fast corners or how you need to back off alittle throttle for a corner.
similar to how using negative steering expo will give you more finer input for corrections on the straight, having positive expo for throttle will make you have more control of the input to the esc
Gosh... That's an amazing reply with much more detail and understanding over "Throttle Exponential" than I have... Firstly thank you for taking the time to put so much effort into a response this will undoubtedly help others including myself...
Secondly as my experience has grown from when this video was first made I have experimented with different settings of expo now and am now able to notice subtle changes between the percentages which I didn't before as my Racing and driving experience was limited as a newbe.....
I am still of the opinion that as a inexperienced racer encountering the same or similar problems that I had my suggestions in the video are if not the correct way to go be a very good starting point ..
But again as my experience has grown I have and continue to change this setting to be more aggressive as my understanding has grown on mechanical car set up and how changes here effect grip etc and my confidence to change things and understand why I am changing things has greatly improved..
Thanks so much for watching and reply have a fabulous day and 2024...
i had a futaba radio that showed this on the display. 4pk or someting like that. very early in my rc career. it was very helpful and you are spot on with your discription.
Thanks Ben really encouraging for me to hear that it's making sense for people watching.. Have a good one pal.
Just starting out in the RC world - video was great!
Glad it was useful mate enjoy the journey it's a fantastic hobby...
@@BrensRCracing Thank you, let’s see how we progress 🤩
Linear is the word your looking for I think at 50% . I use the same Futaba controller and I understand you . I gotta try it myself I’m a bit of a newby also .
@@ebandcamp lol... Good glad it made sense us newbies need to dyick together 👍👍
Can you adjust these settings on a traxxas tqi, transmitter?
Apologies mate I've no idea with that brand... Could be a question for a Fb group 👍👍
'You get the DRIFT of what i'm saying' hahaha .. i love this vid, very well explained. Thnx for sharing !
Thanks mate glad it made sense and gave you a smile
Something about this Northern accent makes me take in all the information with such efficiency
Cheers buddy it's not easy to change it 😂👍👍👍
The values may differ between radios. On the Noble NB4 zero is linear, and negative expo softens the initial acceleration. You can also add delay to the throttle in the radio similar to the ESC's punch setting.
Cheers Chris , thanks for the info on the Noble 👍
Very important info! Definitely helps me!
Cheers buddy glad you found it useful 👍
That was informative, I have the FlyskyGT3B, I believe it has expo so I'll test my Ftx Zorro on this tiny asphalt bike track with 50% expo to see if it handles better. Thanks again
That's good to hear mate... Never too sure if I'm making any sense 😂👍. Let me know if it improves the Ftx zorro 👌👍
How did your tests go? I recently tried messing about with the settings on my Flysky GT3C and it’s worked wonders….so much so, I’ve now dialled in the different cars I race accordingly (so 01e, m06, m03 and Group C Merc C11)
Nicely explained, I have my 3pv on -20% which works well for our track and my level of experience
Glad you thought so mate and thank you for watching and commenting have a top week
Hello from Australia. Thanks for sharing. Nit long into racing as well. Will give the EXP a try?
More than welcome thanks for watching and commenting... Let me know how you get on👍👍
Hey man great an informative video so I can understand thanks
Glad it helped
Zero throttle and steering expo would normally be the default on most radios which would normally be a curve like you showed. The steering expo is even more important than the throttle expo. It's a curve so ideally you don't want to run too much of either, as a stick radio person who races mod TC I run about -45-50% st expo and maybe -10% throttle expo, with a wheel you tend to not need as much negative steering expo. I also turn the steering speed down a little via the radio which some radios have
Got to have a look for this if its an option on my radio cheers for watching and the advice Luke have a good one pal.
@@BrensRCracing no problem, the main reason for having a digital radio for racing is for the steering expo/curve the smaller the vehicle the more important it becomes
a new tip for me being a newbie sooooo much to learn
Glad it helped buddy
I am quite sure that linear acelleration, and also linear steering , without any expo, 1 to 1 ratio, are the standard setting on all transmitters.
Possibly mate but well worth checking... Have a good one 👍👍
Does throttle curve do the same as exp?
@@OGBandit1 depending on your controller I guess
For throttle it depends on track conditions. For on-road I guess the value 50 and above work well, because of more instant power on high grip/traction surface.
However for offroad on a surface that is wet or has low grip, you do not want full power instant on the wheels. Because that makes the wheels spin, but not move your car forward. So with negative exp on throttle the traction build up is better out of the corner and the car is more drivable. Same experience like when driving a regular car on snow or ice.
Exactly 💯 right pal👍
IV had same problems blame everything nearly except failure and give up just tried exp 50 per racing tomorrow let you know also set steering at 50 so I don't jab on to quick out of corners (in theory) but you do make sense thank you Chris h
Glad it made sense pal hope it works better pls keep me updated 👍
Waiting for report.
@@BrensRCracing yep it worked laps went up double may open up to +65next meeting and play with it I have -/+ expo so I take it 0 is linier I'm running at +50 and feathering the throttle but works well .... thanks
Always use linear and adjust on the finger, i suspect when someone said about speed they meant epa not exp and epa is the 100% to give you max power.
Cheers for the information pal it's all helping 👍👍
The 3PV is just like all Futaba Radios, plus (+) Expo is like your first curve and minus (-) Expo is like your second curve. Zero (0) Expo is a straight line.
Why did that make more sense than my 10 min video 😂 thanks for watching pal. 👍👍
That was very useful Ben 😊
Thank you 👍👍👍👍
Just found this. This could be the solution to a lot of my issues….just can’t keep the car either straight out a corner or off power (probably got brake set too high there). But I know the car has grip, I just can’t get it down
Great let me know if it helps mate ...Good luck with your next race
Great video that Bren , well described
@@ianogara2671 high praise indeed.. Thanks buddy hope your well looking forward to racing with you guys again soon....
You did good explaining it.
Great... Many thanks Jerry 👍👍
😮... I'm getting excited to try this this weekend. Great video!
Let me know if it helps cheers for the comments 👍👍👍
On my flysky 0 is linear. On my 21.5 buggy I run it at -12 and on my mini b I run it at - 18%
Thanks for watching and commenting......do you run the mini b less because the wheel diameter is smaller than the 21.5?
@@BrensRCracing for throttle that's just what I found that's drivable, we're running 6000kv brushless motors on them that are almost too fast, definitely faster than the 21.5s. You really have to be fine on the controls with those little cars to make it round the track much less actually turn decent lap times. I think they'd be much more easier on carpet but on a decent size clay track they are a challenge.
Really helpful this information
Glad it was helpful! Cheers pal,..
Front facing camera always flips the video. Don't know why, but it does.
Lol I know weird right?
If it didn’t flips the imagine for front facing because your your looking at your camera live. If it didn’t flip the image it would be confusing because the left side of the screen would be actually the right side in real life.
Just like if you were standing face to face with someone. Their right side is on the left side of your vision.
So you can imagine if you were filing yourself and the imagine was flipped it would be hard for you to make adjustments because rights and lefts would all be flipped.
@@BrensRCracingit’s exactly the same as what happens when you hold up any writing in a mirror - it’s reversed. Just like the ancient large format cameras with bellows and you get under the black sheet. The image is both reversed left to right and also upside down. The only reason people are so used to seeing things right side up and not reversed is because of the pentaprism in regular slr cameras over the years.
I may have misunderstood but it seems Your chart is wrong I’m afraid my friend. The standard default setting for exponential is 0 you can change it to either plus or minus 100
0 EXP is a linear line
Cheers for the input and it wouldn't surprise me if it's wrong still lots to learn but hopefully the video helps with understanding some of the options that are available to better control how the car responds to different inputs 👍👍
Very interesting 👍🏻
What was the outcome at the next meet ?
Did you find the car generally more tractable and neutral out of turns etc after your adjustments ?
Yes without question my driving improved immediately.....the car has stopped trying to do a donut when full gas out of every corner and the car feels more planted and predictable.....
Yes u make sense thanks for that
Glad it helps 👍👍
Well done
Thanks buddy 👍👍👍
Very odd that a controller would come with any expo programmed in. It should be default to zero (or 50% as you stated)
In fairness being a complete novice at the time pal I can't be 100% sure it wasn't user error to start with😂
Just hope it helps more novices like me thanks for taking the time to watch and comment it's appreciated 👍
Thanks for sharing. I'm trying to get faster myself. Looking for those dave brailsford marginal gains
No worries mate glad you found it useful..... You'll be shaving your legs next then 😂👍👍
explained well.
Thanks buddy have a top day👍
Great explanation! Please don't eat your crayons...
Many thanks 👍
No ...well not yet anyway 😅🙂
It’s something I’ve certainly not looked at yet i bet mines at 100% for throttle.
@@Wobhead Well worth having a look at the settings mate ......honestly made my car so much easier to drive .....and from there i can tweak it more on the day to find the ideal setting.....(Honestly just glad it made sense)🤣🤣
@@BrensRCracing crayons are obviously my level of understanding
Brilliant. Just watched this, ran upstairs to fetch my transmitter and check the settings. Will deffo know what to try tweaking at racing, many thanks
An iPhone will let you rotate and flip a video after it's recorded. You can even crop it.
Thanks pal
Positive and or negative Exponential.
Exactly
Don't know what planet you live on but in our solar system 0 % Expo is linear. You better remove that tutorial, wrong and misleading.
Cheers... Have a top day 😉
Expo is done differently on many different brands… I like transmitters that show a graphic curve, no guesswork !
It works exactly like he explained on my flysky
Mine works exactly how he explained also. Some people are just ignorant ,pissed off at their own life , and never have anything nice to say, which is why they never have any good in their life. Great video my friend. Cheers. And remember when people are mean and jealous it’s because you have something they wish they had.
He definitely lives on earth you fucking idiot. His video matches exactly my controller 100% so who’s the person that doesn’t know him or you? You should rethink this and next time don’t comment you don’t know what the fuck you’re talking about 100%. Have a great day. You’re the one that looks stupid not him.
motcrcycle in a corner
👍
I just Got a Flysky fs-g7p just because I want to try expo
Hope you notice a difference buddy.. Keep me posted 👍👍
I noticed a huge difference, much easier to control, less Twitchy