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Originally Posted by Gigasipke
(Post 12631525)
Ok, so our current indoor clay layout has a jump with a short run-up that I cannot clear. This is in Stock (blinky) SC class. There are others that can clear it everytime. I run the VTX10-BE with a Trinity D3.5 motor in my SC10. There are several guys that can clear it but I talked with 2 of them in detail, to try out their gearing and motor timing. Both of the guys actually run Orion R10 Pros but one runs the Fantom version of the D3.5, and the other one runs the D3.5. So the main difference is the ESC. Oddly they are both at opposite ends, One guy runs zero motor timing and a gearing of 75/29 and the other runs full 40* motor timing and gearing of 81/20. They couldn't help me on ESC settings. The guy running the Fantom came over and set my ball diff like his and checked over my basic setup and it was nearly identical to his short of the tires, so I switched to his tires with no improvement. I could not find a combination that worked, the fastest lap times that I was getting were with zero endbell timing and 75/28 gearing. The other difference was that they both run 90C Orion 2s lipos and I run the Nanotech 60c-120c lipos. During practice after racing, I tried combinations of endbell timing and gearing to all extremes with no luck. Even with zero timing and 87/19 I could not make the jump.
I feel that I am maybe missing a setting in the VTX10-BE that is limiting the performance. Here are the settings that I can remember: Firmware A32 Brake 92% / EXP-2 Drag Brake = 7% Throttle PWM 9600hz Throttle Punch 90% Throttle Curve EXP -3 Deadband Middle Motor Power = Disabled MISC Forward = 100% Running my current settings, I can get through the infield and down the main straight evenly, but the jump kills me. Any help would be appreciated. I am also looking to replace the motor before the end of 2014/Q1 (officially removed from ROAR). Then your settings should look like this: Throttle PWM 5000hz Throttle Punch 100% Throttle Curve Linear Having your throttle curve neg will make your power come on low and then ramp up harder as you pull the trigger. Gearing wise I would think you will be closer to that 29 than the 20. I don't know exactly, but I would throw a 28 on and try it. Check your temps after a few min. With the D3.5 motor, set the timing at 0 or 10 deg ( They have 30 deg built in so 0 = 30). Too much timing loses bottom end. This is true for all motors (17.5). The sweet spot is usually between 30-45 deg |
Viper VX4r.45 4500 Kv Bearing replacement
Hello Guys,
I just had to replace the bearings in my VX4R.45 4 pole 550 sensorless motor. Just thought I'd list this info to help anyone going thru the same issues I was noticing. If your motor has a squeal after you let off the throttle, you may need some bearings. Here are the bearing numbers for the replacements. These are from the Boca Bearing Company, Just google it... Here are the bearing numbers... SMR115-ZZ#7 size= 11mm x 5mm x 4mm thk. (drive end bearing) SR2-ZZ#7 size= .375 x .125 x .156 thk It takes a .050 allen wrench to remove the (3) screws. Once removed, the cap slides straight out. Be careful not to lose the washer and spring that is on the drive end of the armature. These have the metal shields like the oem bearings. Hope This helps Later |
Originally Posted by Cain
(Post 12631249)
boborc: bit surprised you are looking to run a cap on the VTX8 with the sc10 4x4?
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Originally Posted by boborc
(Post 12633072)
Yeah, Just trying to get a little more launch out of a 2 pole motor. Just experimenting but probably not going to happen "no space".
When I did something like this at least with my Tekin 540 4 pole 4000Kv motor on the SC10 4x4 I had at one time, I found that it dropped temps, I had plenty of punch, but now had the top end I was looking for. I only used like 5 degrees of timing at the higher RPM range as well. the 550 2 poles from what I have seen for setups that the ESC I was using at the time had listed for them showed much more timing usage than what I was doing. Maybe that could help? |
yeah, maybe of the locals running 2 pole 550's drop a couple teeth and booth their motors. The unboosted 2 pole 550 scte and heavier trucks suffer. But the boosting guys seem to do well clearing the larger jumps. But they still need to carry speed because the bottom end snap is not the same.
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What are your guys setting for the VTX8 ESC on 4s pack and tekin 2050 Motor. In a Tekno EB48
??? VTX8 ESC - Brake ------- Brake strength 80% Brake PWM freq ??000Hz Brake curve linear ---- Smart Brake System Dynamic Brake ?? Drag brake 10% Throttle ---- THROTTLE PWM freq ???00Hz Throttle punch %% Throttle curve linear Deadband middle Motor Power Acceleration Boost Top Speed Timing Misc Control Run Mode Motor Direction Motor Type SBEC Voltage Forward Power Reverse Power Auto Power Off protection Battery Cut Off Motor Temperature Cut ESC Temperature Cut on Middle size track and low traction. Thank you |
Motorman-- probably want to turn the brake up slightly from 80 - its a personal feel, think mine was like 90.
Brake Freq - 5000hz Dynamic Brake - Disable (use this more in on road) Throttle Freq - 12000hz Race Blinky mode -- no boost Motor Direction - Normal Motor Type - 4 pole SBEC Voltage - 6.0v Forward Power - 100 Reverse Power - na Auto Power Off - off Battery Cut Off - 12.8v Motor Temperature Cut - 230 ESC Temperature Cut - 220 This is what I used to start, should put you in the ball park. |
Originally Posted by nikos2002
(Post 12633907)
Motorman-- probably want to turn the brake up slightly from 80 - its a personal feel, think mine was like 90.
Brake Freq - 5000hz Dynamic Brake - Disable (use this more in on road) Throttle Freq - 12000hz Race Blinky mode -- no boost Motor Direction - Normal Motor Type - 4 pole SBEC Voltage - 6.0v Forward Power - 100 Reverse Power - na Auto Power Off - off Battery Cut Off - 12.8v Motor Temperature Cut - 230 ESC Temperature Cut - 220 This is what I used to start, should put you in the ball park. Thank you sir I will redo my setup ETA on the motors for 1.8? |
he forgot punch 100% ;)
Oh and make sure if your radio has a high speed mode, you turn it off for channel 2. Channel 1 is fine. |
Originally Posted by Bob Barry
(Post 12634188)
he forgot punch 100% ;)
Oh and make sure if your radio has a high speed mode, you turn it off for channel 2. Channel 1 is fine. I need to recheck my radio thanks sir |
oh yeah, that radio definitely has the super high speed setting and by default it is on. turn it off on ch2. you only need it if you are using it on a ch with a servo
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VF8 motors are coming along - manufacturing is interesting, you make 2-3 you can do things one way. Try and make a 1000 and its different. So we wanted to verify some things were done correctly in mass production and that took longer than we hoped. But the result is motors with the best quality we can give. So they are fast and reliable.
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anyone know if the futaba 4pl has that setting on throttle channel?
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Sorry - don't know. We have seen some people (using our stuff and others) effected by this new High Speed setting. Feature software updates will be set up to handle this with no issues
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Originally Posted by nikos2002
(Post 12635149)
Sorry - don't know. We have seen some people (using our stuff and others) effected by this new High Speed setting. Feature software updates will be set up to handle this with no issues
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