caveman

the VFS-1Comp and the Hara 2.1 have higher temp cutoff, you can send your VFS-1 pro to upgrade for a higher temp cutoff or mount a cooling fan to cool the speedo. I saw in recent Reedy race photo, Hara's car had two cooling fans , one for motor and one for speedo.

maxoo

for change a VFS-1 pro to a VFS-1 competition:

TFR

iTrader: (11)

Robert,

I know the diode single is needed to use with the ESC, but is the big capacitor really needed as well? I'm only running 1/12th 4 cells. What do you think? Can I get away without using one? Any ill affect?

Thanks,

Hebiki

iTrader: (26)

rob, try lowering your profile so there is less punch, limit the current, and run the heatsink for the VFS.....and make sure your gearing is spot on so there isnt as much heat generated.

maxoo, doing this "self-fix" will void the warranty. better to send it off to Ko and have them do the mod.

JoeGlover

iTrader: (4)

I just got a Hara 2.1 and when I hook up my 7 single and hit the throtle the servo glitches. I did not have these issues with my other speedo using all the same gear.

It seems to be drawing current away from the reciever so its shutting off while powering up the motor. Is this a frequency setting or is there something wrong with the speedo?

Thanks,

trf_racer

Check if your capacitor is installed correctly and determine if it's working. Also, you might have to adjust the power save to a higher voltage. I don't think it's the drive frequency problem.

Scrad

iTrader: (16)

You can also use a capacitor in one of your reciever slots. Spektrum makes one already assembled.

canto54

I'm sure this question has ever been posted but I was not able to find the information on the post.
I'm currently running a VFS1 Pro and I own a Multi Setting Adapter that I purchase with it.

Now I want to uprgrade to a VFS1 Pro competition or a Twister 2.1, can I use my programmer with this new speedo?

caveman

Yes

canto54

great!! thanks a lot

JoeGlover

iTrader: (4)

Thanks for the input. It turns out my reciever doesn't like where it is mounted. When I test the gear with the reciever on the workbench its fine. The second I put it between the speedo and the servo thats when it starts to have issues.

I guess this could be radio interference? It does it with my HRS reciever and my novak XXL. I didn't have a set of crystals to try but I'm not sure this would solve the problem either.

I run an MSX so everything is tight but fits. I'm going to have to mount my recieveron my servo I guess. But I will try a cap mounted to the reciever as well.

How do I change the output voltage to the reciever from the speedo using the programmer?

trf_racer

You go to the Power Save window in the programmer, and adjust it to the highest Power Save voltage (I believe it's 4.0)

I run my VFS-1 Competition on TRF415MSX and I don't have any problem with glitching. I am using a Futaba S9550 Low Profile Servo and JR RS310 rx. Are you putting the capacitor beside the rx? I managed to fit it between the ESC and the motor.

JoeGlover

iTrader: (4)

I am using a KO 2363 servo and a futaba HRS reciever. The cap is mounted on top of the esc, whick is now about 6mm away from the reciever and doesn't seem to have anymore issues. My buddy has the programmer so I will see him at the track tommorow and check and possibly adjust my speedo.

Glowster21

iTrader: (136)

KO Staff/Robert.
Hi!
I smoked my Pro Comp and am sending it to you today via Priority. When you hit the throttle, it smokes and the negative battery wire unsolders itself from the speedo. I use the stock cap and the Ultimate Double Schottky for 19t 1/12th scale. What is the average turnaround time right now? I have a big race on June 25th and need it back by then. Is that possible if you get it by Tuesday/Wednesday next week?
Thanks,
Joe Glorioso

Hebiki

iTrader: (26)

Joe,

Robert isnt always on rctech.. email this to him at [email protected]. He'll definitely get it.

- chris