305LikesXray X1 - Formula One Car
03-20-2017, 09:55 AM
#2041
03-20-2017, 10:27 AM
#2042
Tech Master
iTrader: (5)
I assume this is an issue between my esc and controller. I'm using a Sanwa MT-S and a Hobbywing Xerun XR10 Pro Stock Spec V4 Sensored Brushless ESC. What would cause a throttle response like that? I'm running the gearing and motor timing of the fast guys - but I feel like there's a step I'm missing here to calibrate everything.
2017 X1 - setup stock out of the box
2017 X1 - setup stock out of the box
Was this at NorCal? If so, that crash was pretty epic
03-20-2017, 10:36 AM
#2043
Had the same problem with that speed controller. Checked and reset everything before I found the sensor cable was coming out of the esc. Pushed the cable back in all the way and the problem went away. Apparently the esc goes into a sensorless mode when the cable is disconnected and does not give you any warning mode ( flashing / blinking lights, ect ).
Was this at NorCal? If so, that crash was pretty epic
Was this at NorCal? If so, that crash was pretty epic
Yea @ Norcal. Good track. Good people. Definitely recommend it. I guess I was famous for the day
A put the youtube link up at the Norcal facebook site. All part of the process I guess 
03-20-2017, 12:57 PM
#2044
Tech Apprentice
iTrader: (2)
Wish I could share the YouTube vid but can't post links yet, but man, it was a hard hit. Car was handling poorly in the first 2 heats. Some of the more experiences guys were helping me out, mostly on gearing and motor timing. Was still having a problem with throttle that led to this crash.
I'd hold full throttle and it would be very sluggish before suddenly kicking in after a few seconds. This naturally sent me flying at inopportune times. I managed it mostly until the last minute when it sent me hard into the boards. I ripped the entire rear end off the car, and amazingly the spring from the shock was actually on the axle after all the parts landed.lol. Lost a tire. Cracked the chassis. Broke the shock. A good time was had by all.
I assume this is an issue between my esc and controller. I'm using a Sanwa MT-S and a Hobbywing Xerun XR10 Pro Stock Spec V4 Sensored Brushless ESC. What would cause a throttle response like that? I'm running the gearing and motor timing of the fast guys - but I feel like there's a step I'm missing here to calibrate everything.
2017 X1 - setup stock out of the box
I'd hold full throttle and it would be very sluggish before suddenly kicking in after a few seconds. This naturally sent me flying at inopportune times. I managed it mostly until the last minute when it sent me hard into the boards. I ripped the entire rear end off the car, and amazingly the spring from the shock was actually on the axle after all the parts landed.lol. Lost a tire. Cracked the chassis. Broke the shock. A good time was had by all.
I assume this is an issue between my esc and controller. I'm using a Sanwa MT-S and a Hobbywing Xerun XR10 Pro Stock Spec V4 Sensored Brushless ESC. What would cause a throttle response like that? I'm running the gearing and motor timing of the fast guys - but I feel like there's a step I'm missing here to calibrate everything.
2017 X1 - setup stock out of the box
03-20-2017, 01:24 PM
#2045
definitely sounds like a sensor wire. if you lost total control of the car, that'd sound like a receiver
03-23-2017, 06:14 AM
#2046
What is everyone putting on the king pins to get them feeling nice and smooth? I just built the car and they don't feel like they are catching, but they don't really feel smooth either.
03-23-2017, 06:46 AM
#2047
10k silicon oil (diff oil)
03-27-2017, 07:52 AM
#2048
.
Last edited by phatboislim; 03-27-2017 at 12:12 PM.
03-27-2017, 08:10 AM
#2049
I also look at the ball, I don't normally ream them as xray parts have a good tolerance and you don't want to introduce slop, but I will inspect the edges for any burrs in the plastic, a light swipe with an xacto blade does the trick around the inside edge.
For lube, which is intended for dampening .. I use bearing oil up to 10k depending on the feel I want on the track.
03-27-2017, 09:45 AM
#2050
Tech Adept
Speaking of kingpins, I just happen to have a set of Tamiya titanium coated kingpins on hand (have a few F104s, lots of F104 spares). I was wondering if these were any better than the stock Xray ones. They are the same dimensions and fit right in. I wouldn't recommend them as an upgrade, unless they are better. But I just happened to have them
03-27-2017, 10:29 AM
#2051
Speaking of kingpins, I just happen to have a set of Tamiya titanium coated kingpins on hand (have a few F104s, lots of F104 spares). I was wondering if these were any better than the stock Xray ones. They are the same dimensions and fit right in. I wouldn't recommend them as an upgrade, unless they are better. But I just happened to have them
Also in some cars with tight tolerances, the ti-coating adds a little diameter to the pin, which can cause a little sticking, especially noticeable with metal pivot balls (even more noticeable if there is a slight scratch in them).
Honestly if you polish any stock kingpin it feels a ton better than if you don't.
03-28-2017, 12:00 PM
#2052
Tech Adept
Thanks for the info! That's why I like the composite pivot balls on the X-ray, less chance of scratching the kingpin. Also why I try to avoid using the provided metal shims on there. Instead, I use the composite shims for ride height and droop.
03-31-2017, 03:44 PM
#2053
Was thinking about getting this kit, is F1 too hard to learn as my first racing class? Complete newb here.
03-31-2017, 04:12 PM
#2054
.
Last edited by mstrfahrenheit; 03-31-2017 at 06:27 PM. Reason: Dan is smarter :)
03-31-2017, 06:20 PM
#2055
F1 is not the easiest class for newcomers, especially on lower grip asphalt. If you race at Norcal Hobbies, traction is very inconsistent so it may be frustrating to drive when traction is lower. 4WD classes are more forgiving. Seen too many new F1 guys try it and then quit. It is a steeper learning curve for sure, but a lot of fun once you figure it out.