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Thread: Just tested my XRS (novak). got ?'s

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Old 02-26-2007, 06:02 PM   #1
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Default Just tested my XRS (novak). got ?'s

After buying cheap ESC's I decided to buck up and go with a Novak XRS (54.00$ aint bad either). I was real pleased with the smoothness it had , the reverse delay is almost non-existant if your not going full-throttle and slamming into reverse.
The only problem I encountered was while on a technical section on the course it shut down , no throttle or steering . I had to turn the switch off then on , then it would go . it did this twice in a hour .
I am running a TLt , 55-turn , 3300 6-cell nihms (split 4x2) , no reciever pack cuz of the 6-cell .
Has anyone had this issue ?
This would be very frustrating during a comp.
any help would be appreciated .
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Old 02-26-2007, 06:04 PM   #2
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thermal shutdown, getting to hot from running it real slow, I bet you were creeping alot? mine gets warm so I get on the throttle a bit to keep it cooler! I might start bring a crap pack to run full throttle inbetween runs!
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Old 02-26-2007, 08:14 PM   #3
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I've never had that problem with mine. It's my second one. My first crapped out and started glitching on me but I really like the size of it and the "no delay" reverse. I'm running a Novak servo regulator to make up for it's low BEC.
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Old 02-26-2007, 08:49 PM   #4
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Sounds like BEC troubles. What servo are you running? Why no reciever pack because of the 6 cell? Are you tapping cells from your main pack for servo power? If so, did you remember to remove your red reciever wire.

After owning few Novaks it seems nothing compares in quality. Well, that is till you go brushless.
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Old 02-26-2007, 09:14 PM   #5
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its a Jr ST125mg . should I run a reciever pack ?
it is water-proofed too.

Last edited by RockRacer1; 02-26-2007 at 09:18 PM.
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Old 02-26-2007, 09:20 PM   #6
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That servo draws 1.3 amps at 5 volts when at stall...
much more than the BEC can handle.

6 volts would up the torque to 140oz.in too.
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Old 02-26-2007, 09:20 PM   #7
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You could get a servo regulator from Tower for 20 bucks. I'm running two Futaba 3305's (One for steering and the other for front dig with no problems. It has a BEC of 6V/3A. That way you have no extra weight from a Rx pack.
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Old 02-26-2007, 09:30 PM   #8
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just searched it . does anyone have any pics of a servo regulater installed ?

Last edited by RockRacer1; 02-26-2007 at 10:31 PM.
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Old 02-26-2007, 09:48 PM   #9
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Quote:
Originally Posted by Unholy
That servo draws 1.3 amps at 5 volts when at stall...
much more than the BEC can handle.

6 volts would up the torque to 140oz.in too.
I got a XRs with a JR 125. It pushes 142 oz. but it does alto better then the 645. With my sub c pack, I have no problem turnign the tires except on my bed. It does fine on carpet dirt rocks etc! on carpet vert front end dow nit can turn them fine!
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Old 02-27-2007, 12:57 AM   #10
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I'll get a pic of mine installed later today.
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Old 02-27-2007, 06:38 AM   #11
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Quote:
Originally Posted by ClodCrawlin
I got a XRs with a JR 125. It pushes 142 oz. but it does alto better then the 645. With my sub c pack, I have no problem turnign the tires except on my bed. It does fine on carpet dirt rocks etc! on carpet vert front end dow nit can turn them fine!
You are not getting 142 oz/in out the 5 volt BEC... just so you know.

And some of the XRSs are better than others. You got a good one if it's not activating its thermal protection while crawling.
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Old 02-27-2007, 08:22 AM   #12
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Its out powering a 645! and my truck vert it can turn the tires back and forth, it weighs 5 lbs too!
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Old 02-27-2007, 08:32 AM   #13
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The 645 is only a litle over 107oz/in at 5 volts.
Of course it's outpowered by the JR 125.
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Old 02-27-2007, 08:33 AM   #14
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Ohhhh, Its still strong so it works til I get a mamba 25
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Old 02-28-2007, 07:41 AM   #15
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Here's a pic of the servo regulator. You splice the power wires into the ESC power wire. Leave the ESC turned off and turn the reg. on. Plug it into the batt. slot on the Rx. Works pretty good for me.
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Old 02-28-2007, 10:25 AM   #16
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I have a Novak XRS ESC with Hitec645MG servo and a futaba reciever. all powered by a 6 cell 2/3A 1500 ELite battery pack. should i run a servo regulator?
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Old 02-28-2007, 10:37 AM   #17
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Quote:
Originally Posted by Chris85xlt
I have a Novak XRS ESC with Hitec645MG servo and a futaba reciever. all powered by a 6 cell 2/3A 1500 ELite battery pack. should i run a servo regulator?
You have more power by running a seprate battery, people are running the regulators to get more then the ESC will put out. The Battery you have will run your servo best.

Also the reason they don't just add a pack like you have is they are trying to save weight or just don't want to charge another pack.
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Old 02-28-2007, 05:56 PM   #18
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Thanks for all the info and pics. you rock .
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Old 02-28-2007, 07:09 PM   #19
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Quote:
Originally Posted by WheelChair
You have more power by running a seprate battery, people are running the regulators to get more then the ESC will put out. The Battery you have will run your servo best.

Also the reason they don't just add a pack like you have is they are trying to save weight or just don't want to charge another pack.
WRONG!
He didnt say he was running that as a RX, and your pack is killing your power. I had IB1200 6c pack and I put a 6c 1500 Sub C pack, and now I got way more power, and a little worse runtimes because its old.

Plus the RX cant handle a 6c elite 1500. Try 5 cell AA pack. I have no problems with a 142oz servo!
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Old 02-28-2007, 10:50 PM   #20
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if I can find a Rx pack thats small enuf or split up I could mount it on either side of the servo on the front axle .

anyone got a unique Rx pack set up like that
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