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Old 08-01-2012, 07:39 PM   #991
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wheres the new motor??
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Old 08-02-2012, 12:39 AM   #992
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Ciao, Max - thanks for the answer. That is correct, the VLink was not intended as a tool to change profiles, just the features within it.

Will it evolve -- how knows -- lots of cool ideas under consideration.

Curious to those who had the issues with it not "taking" the first time. Did you ever have update issues with the old program? Like you had to do it multiple times?

For those going to update the VTX1 - remember, its a separate VLink download, because the software differs for the 1s application.
Ciao Nikos,

i can confirm you that i never had issue to update the esc firmware, honestly at the begining i lost a lot of time to set up properly the computer, to many usb port so i serched one by one which one was connected with the esc , but when done the first time, now is a question of only few minutes.

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Old 08-02-2012, 09:59 AM   #993
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wheres the new motor??
Still working of it. Right now they are good, but not perfect--yet.
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Old 08-05-2012, 06:35 PM   #994
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Just thought I would pass on some information regarding the forthcoming Viper 1/8th Speedo - I hope I'm not out of line by posting this, but I was encouraged to post my opinion about it by the Canadian rep, who gave me the ESC to test in my RC8.2e...

Regarding build quality, it's excellent. This speed controller is very, very solid, built in the same manner at the VTX 1/10th scale ESC's, with a very solid aluminum case. With the solid build quality, however, comes weight.

I was running a Tekin RX8 before, but after I had a meltdown (caused by an pipe landing that likely caused a short, and a very rapid but short ESC fire), I was given the Viper ESC to test. I ended up replacing the RX8, so I was able to do a weight comparison. I knew the weight difference was substantial, but I was surprised to find that the Viper ESC is almost 2x the weight of the Tekin - I would have to say this is because of the all-aluminum case, and the fact that the case is filled with epoxy (or something similar). If you look at the robustness of the two speedo's, the Viper is certainly more solid.

I wasn't concerned about the extra weight, due to the large amount of torque that the 1/8th scale motors have.

We did have an issue with motor cut-off the first few runs as we tried to find the correct gearing and temp cut-off. The default out-of-the-box temp cutoff is a rather conservative 160F - this had to be bumped up to about 200F. I landed on 46/14 gearing, which led to can temps of about 155F, which was what I was after (internal temps would be, of course, quite a bit higher).

Once that was done, the speedo was rock solid. I've run it in 4 or 5 club races, won a few, and placed 2nd a couple of other times. We had a big race this weekend, and I qualified 4th out of 14th. Unfortunately, I didn't finish well because some idiot (cough cough) didn't solder the motor wire properly, and it broke off. I'll have to have a word with my mechanic about that...

I haven't played with adding any additional timing, since with motors of this size it's not really necessary. However, since the speedo is running the same software as the other Viper ESC's, you'll be right at home using the ProGauge.

To summarize, the speedo is built like a tank, which is perfect for 1/8th off road action. I'm hoping that the rep will forget about this speedo so I can continue to run it in my buggy, but since there's only a few of these babies in existence, I have a feeling that he won't

In short: two thumbs absolutely up! Anyone want to buy a Tekin RX8?
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Old 08-05-2012, 07:08 PM   #995
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How big is the footprint?
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Old 08-05-2012, 07:26 PM   #996
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Still working of it. Right now they are good, but not perfect--yet.
cool cant wait to try 1
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Old 08-05-2012, 09:07 PM   #997
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How big is the footprint?
Approx. 53mm x 46mm, or 2.1in x 1.8in.
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Old 08-05-2012, 10:14 PM   #998
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Cool. It'll fit in my serpent.
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Old 08-10-2012, 05:26 PM   #999
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How much brake do I need for on road 17.5. I am running 10% now and at first I had 75%. I was thinking 25% would be about right
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Old 08-12-2012, 04:31 AM   #1000
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Spent some time testing a55 software


Its got the power and the motor is running so cool,I run boosted so always a struggle to keep it cool not with this a software..

Very happy.

Is everyone else getting the same results???
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Old 08-16-2012, 09:35 PM   #1001
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Anyone got some boost settings for a 10.5 in a TC? Nosram pure2/lrp x20 - 3400kv. Geared at about 6.5

I'm at 6000 - 22000, 35 boost, level 8 slew, 15 top speed.
Throttle is at 9600.
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Old 08-16-2012, 10:58 PM   #1002
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Dog Bone - glad you like VTX8, they have been good and solid in testing - like you said winning some club and small trophy races already in just the testing phase.

The a55 software, was designed to help run the motor cooler, glad you see if working that way.

I wish I had some touring experience to pass along - on road is my next project!!
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Old 08-16-2012, 11:03 PM   #1003
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Quote:
Originally Posted by silvalis View Post
Anyone got some boost settings for a 10.5 in a TC? Nosram pure2/lrp x20 - 3400kv. Geared at about 6.5

I'm at 6000 - 22000, 35 boost, level 8 slew, 15 top speed.
Throttle is at 9600.
Assuming you are using A55, Please try the following basic setting for 10.5 motor. And you can start to find the setting that suit you from the following setting.

Throttle PWM: 16000
Throttle Curve: Linear
Throttle Punch: 100%
Start RPM: 4000
End RPM: 16500
Acceleration Timing: 38
Turbo Timing: 20
Slew Rate: 6

Motor Physical timing remain as factory default.

Ratio you can try from 6.3 - 6.9.

Please check your temp every 3 mins when you are playing with new setting.

Cheers
Wong
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Old 08-16-2012, 11:38 PM   #1004
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Thanks for that. I was following something off the viper forums (for A25 or so), and that put my boost rpm settings higher than yours - 6000-22000 instead of your 4000-16500.

Lowering the top rpm will make top end turbo kick in quicker and the boost ramp up faster? Will it affect top speed at all?
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Old 08-18-2012, 02:59 PM   #1005
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just received the BE, using Thunder Power 17.5 with my Wildfire build until The black Can comes out.
i was going to use my Sv2 to run with and test out the ride,
until i could figure which new esc to use but all the investigating steered me to this Viper.
So much smaller and the easy programing is a Great Plus (this is quite the LIL' Jewel) darn wires over power its size itself.
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