Felony Felony is not driving straight

[KA-Felony]

I have felony v2 and when throttle full speed the car turn towards the left and it do not go in straight line.
I have tried adjusting the suspension, wheel alignment, changed the servo, receiver, ...etc but without any luck.
When turning the GYRO on DX3 to full, the car goes in almost straight line but not as desired.
I have also installed the BT2000 in the transmitter to get some info on speed, RPM, temperature, and more but same no straight line.
Recently I have upgrade the ESC to Spektrum 160A and the Motor to Spektrum 1250Kv with Radio Link receiver but same issue.
Any suggestions on what to do or change or check in order to fix this issue??

 

[Felony_Prime]

 

[Felony_Prime]

Recalibrate everything and reset your steering endpoints.

 

[KA-Felony]

I have tried that as well but still no luck with that. All this started when I added the BT2000 bluetooth to the transmitter the car started to act wired.
I tried to remove the BT2000 and reseted DX3 transmitter to factory defaults but no change also. when I replaced the transmitter and receiver with RadioLink it is slightly better but not that great.

 

[#ARRMArcfanboy4life]

Maybe damaged bearing causing more resistance on one side causing the diff to spin.

 

[Chapinb]

Are there any signal wires, like the antenna or servo wire, that run along the 3 motor wires? Or even the lipo leads? Move the signal wires is they are.

Put the car up on a stand and gun the throttle. Does the servo twitch?

 

[RCbuzz]

Low diff fluid can also cause this on heavy power.

Strange it started happening after the Bluetooth module though..

 

[K-BASH]

These cars will want toe out in the front..under power the wheels will go toe in from the slop.id go toe out on RF..

 

[RCbuzz]

These cars will want toe out in the front..under power the wheels will go toe in from the slop.id go toe out on LF..

Solid point!

 

[K-BASH]

If that don't work I'd tighten up LR spring..heavier setup an more power can change everything..you should be able to make it go L or R just by adjusting rear springs ,under power of course.

 

[KA-Felony]

Maybe damaged bearing causing more resistance on one side causing the diff to spin.

Is it possible to share a picture of the bearing that might be damaged, because I have check everything is in a good condition.

 

[KA-Felony]

Are there any signal wires, like the antenna or servo wire, that run along the 3 motor wires? Or even the lipo leads? Move the signal wires is they are.

Put the car up on a stand and gun the throttle. Does the servo twitch?

Yes, Servo, lights, and cooling Fan wires are all connected to the receiver next to the motor wire.

 

[#ARRMArcfanboy4life]

Is it possible to share a picture of the bearing that might be damaged, because I have check everything is in a good condition.

You don't need to. If it spins freely and isn't wobbling, it is probably fine.

 

[Felony_Prime]

Take the body off the car, make sure the front wheels are pointed straight ahead, and take a pic of the whole car from the top down.

 

[KA-Felony]

Take the body off the car, make sure the front wheels are pointed straight ahead, and take a pic of the whole car from the top down.

The whole car picture.

 

[Felony_Prime]

@KA-Felony
So the only issue that comes to mind on this is a common mistake many people make with this car.

Open your receiver box and make sure you don't have that light harness or anything else in that matter plugged into aux port 1 or 2. Those two ports are used by avc when activated. This will always result in the car behaving in the way youve described. Plug your lights into aux 3 or 4 if you don't want any interference. It clearly says this in the manual.....once you find where they printed it lol. Its been a common complaint about arrma manuals that those little valuable bits of info are much less obvious.
Heres where it explains it:

Unplug anything you have in ports 1 and 2, turn your avc back a bit ( im assuming youre doing speed runs....don't need full avc for that ) and then make some test runs to see if the car continues to track all wonky. You need very little avc dialed in to keep this car straight when zipping it up and down a good stretch. I rip my felony at 75 to 80 mph consistently with very little avc applied.

If this happens to not be the issue then the only thing left to do is to start pulling her apart and start the long tedious inspection of bearings and any other driveline related items to make sure nothing is binding. Also make sure that you have equal adjustments on both sides of the suspension as well.

 

[FPVkabina]

The 2nd photo down, the LHS wheel looks slightly pointing inwards, the other pics is hard to spot.

So when you connected new Rx, was your steering Trim Centre before you removed the servo horn?

How far off centre is it?

5-10?

 

[Felony_Prime]

The 2nd photo down, the LHS wheel looks slightly pointing inwards, the other pics is hard to spot.

So when you connected new Rx, was your steering Trim Centre before you removed the servo horn?

How far off centre is it?

5-10?

I noticed that as well. The longer i looked at it, the more it started to become an opportunity of illusion to me. The angle of the tower vs the items behind it, and those wires for the lights made it appear as though the shocks were in different spots. However, it very well could be. It is hard to see and maybe my eyes are continuing to play tricks on me.

 

[FPVkabina]

I noticed that as well. The longer i looked at it, the more it started to become an opportunity of illusion to me. The angle of the tower vs the items behind it, and those wires for the lights made it appear as though the shocks were in different spots. However, it very well could be. It is hard to see and maybe my eyes are continuing to play tricks on me.

Yep was staring for awhile and noticed this..the bottom looks different to the top..i don't know what the part is called..it looks bent?

 

[FPVkabina]

Might be the shadow playing tricks on me..might have crashed and bent it slightly but other than that not sure.

But this pic it looks normal so it was the shadow.

This pic can see the LHS wheel is out compared to the RHS.