RE: Factory Tracks Raceway MT racers

RE: Factory Tracks Raceway MT racers
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RE: Factory Tracks Raceway MT racers - 11/20/2007 1:48:50 PM

tgrand

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From: pontiac, MI, USA
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Thank's Brian, I'm trying to get faster and really be able to race with the fast guys. Like I said earlier, I'll pit for you at the next race if you need it!

Later,
TGrand

(in reply to Bria1)

Post #: 126

RE: Factory Tracks Raceway MT racers - 11/20/2007 2:52:27 PM

TQ Batman

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From: Gotham City, NY, USA
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quote:

ORIGINAL: binaryterror

quote:

ORIGINAL: TQ Batman
So you would just need some 8x12x4 bearings to fit the new axles.

You are right, If you use the stock Traxxas hubs. I can't find a good sealed 8x12x4 bearing, only 8x12x3.5 on Avid (which claims to be used in the same spot as the other in that size...hmmm). If you guys find a better bearing, heck lets all group up and ask RD Racing to sell us just the axles...group buys have power. And what is with the RD Racing site, sometimes its working, sometimes super slow, others its just down. I'd go back to stock Traxxas Knuckles/Hubs for good tight fit. The next problem becomes the width, using an RD axle and standard buggy 17mm hex set up will narrow the truck, meaning wheels will get close to hitting.

Yes, I seen those 8x12x3.5 from Avid as well. Last night I ran my idea across PW and he is seeing if his buddy can make the axles. Even if they are a bit to narrow a solid custom shim can be added, which is what I asked him to do as we need the pin to be in the same place as the revo so the rim don't rub. I use the mugen rims and hexes and they do not rub. The rub marks actually came from when I ran them on the LST.

The battery is the original one I bough for the Revo back at RC Pro in Freelin. I'll discharge it tonight. I'm not too worried about saving the battery, I just wan to figure out what the problem is. I have another 1600 ready to drop in, but if the problem is somewhere else then it won't help.

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Post #: 127

RE: Factory Tracks Raceway MT racers - 11/20/2007 3:13:04 PM

binaryterror

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1600 pack? is that by chance a Ofna MDP one? Matt was having the most problem with those. My stock really old Revo pack just won't give up! 3 years old. I do tend to use my 1400 IB packs from Integy more now though. Once a month I plan to discharge the packs then charge them, just to keep them cycled. Also since I have 3 packs, 1 weekend I'll use 2, then the next swap 1 out for another. Try to save them I guess.

Good call on the spacing. Al's buddy could help us for sure. We'd need an axle and a spacer, or an axle with a built in spacer.

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Post #: 128

RE: Factory Tracks Raceway MT racers - 11/20/2007 4:32:31 PM

TQ Batman

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quote:

ORIGINAL: binaryterror

1600 pack? is that by chance a Ofna MDP one? Matt was having the most problem with those. My stock really old Revo pack just won't give up! 3 years old. I do tend to use my 1400 IB packs from Integy more now though. Once a month I plan to discharge the packs then charge them, just to keep them cycled. Also since I have 3 packs, 1 weekend I'll use 2, then the next swap 1 out for another. Try to save them I guess.

Good call on the spacing. Al's buddy could help us for sure. We'd need an axle and a spacer, or an axle with a built in spacer.

Yes, it is the Ofna 1600 battery. Been real good to me so far. Maybe I'll cut the shrink wrap before the discharge to see if I got Matt's problem.

We were also thinking of making the axle a little larger than 8mm as it seems all hexes are not 8mm. So something like .003 larger. We will need to test one and see how it fit in the bearings though.

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Post #: 129

RE: Factory Tracks Raceway MT racers - 11/20/2007 4:45:48 PM

binaryterror

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Then lets pick one that is 8mm and cheap and stick with it. If is Losi, Associated, whatever, but lets make something easy to get, not like crazy Mugens.

OH and a must know, these axles must be made from high grade of steel or maybe stainless steel. Aluminum of course is not going to work for us.

< Message edited by binaryterror -- 11/20/2007 4:59:57 PM >

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Post #: 130

RE: Factory Tracks Raceway MT racers - 11/20/2007 5:01:13 PM

TQ Batman

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From: Gotham City, NY, USA
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quote:

ORIGINAL: binaryterror

Then lets pick one that is 8mm and cheap and stick with it. If is Losi, Associated, whatever, but lets make something easy to get, not like crazy Mugens.

OH and a must know, these axles must be made from high grade of steel or maybe stainless steel. Aluminum of course is not going to work for us.

Yeah, was thinking of the Losi ones myself. I tried the 8T ones and they seem pretty good. And they are reasonable in price.

PW said this guys has the toughest steel around. I asked that as well

Maybe they need to be heat treated as well. We will know more after PW talks to his buddy.

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Post #: 131

RE: Factory Tracks Raceway MT racers - 11/21/2007 1:15:49 AM

TQ Batman

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OK, so I got time to discharge the battery...unfortunately it discharged to 1542 mah. So that means the battery wasn't even half dead when my stuff started to glitch. Which also explains why my steering was still good. I'm charging the battery again to see where it stops. Then I'll cut the shrink wrap and see if the battery bars are OK. If it looks good then I might replace my receiver.

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Post #: 132

RE: Factory Tracks Raceway MT racers - 11/21/2007 1:53:30 AM

ThermalRD

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Batman, what throttle servo do you have? Its only throttle glitching right?

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Post #: 133

RE: Factory Tracks Raceway MT racers - 11/21/2007 2:33:35 AM

TQ Batman

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I got the JR 4800. And yes, it was only the throttle. I have never had this glitch and can't reproduce it again.

I found I had the orion 1600 in there and the ofna one is my backup. So I cut off the shrink wrap and peeled the side stickers off. All I could see was a little rust around one of the contacts. I turned the truck on and was tossing around the battery and couldn't get a glitch.

So I have no idea. Kinda don't want to race since it could turn out just like that truggy main

I guess I'll try to get a good 30 minutes of run time on it Friday night. Right now I'm discharging the ofna battery and going to try it.

Is it possible the throttle servo got too hot?

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Post #: 134

RE: Factory Tracks Raceway MT racers - 11/21/2007 3:18:03 AM

binaryterror

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Servos when under load, not supplied power with enough amperage, and weak can get hot. My crawler one has seen HOT quite a bit.

What receiver are you using?

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Post #: 135

RE: Factory Tracks Raceway MT racers - 11/21/2007 3:50:48 AM

ThermalRD

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Hmmm... Thats an odd one batman. Ask Bill about those 4800's, he may have some insight on em. Mayb hes heard something good, or bad about em. Do you have a backup servo you can use? or atleast try?

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Post #: 136

RE: Factory Tracks Raceway MT racers - 11/21/2007 4:27:54 AM

TQ Batman

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Sure, I can pull my 8711 out of the 8t. I'm using the JR RS300 for a receiver. I'm stumped as well. Like I said, never happened before, I would have felt allot better had the battery went bad..but now I am guessing. Right now the ofna 1600 is charged to 950 mah, I'll give that battery a try with the 8711 and cross my fingers. I'll also bring an extra RS310 with me just in case it turns out to be the receiver.

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Post #: 137

RE: Factory Tracks Raceway MT racers - 11/21/2007 1:18:42 PM

binaryterror

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I have heard of odd things about those JR receivers especially with the crawling community. They use the receivers to the max with power needs and they seem to find more problems.

I honestly bet its the servo. Don't take a chance, replace it with the back up. If the next time you run it again the same glitch happens you can rule out the servo. You could also open the servo and take a sniff, electronics usually smell funky right before they go really bad.

You are still using crystals or synth right? If thats the case it could be metal/metal contact causing a glitch or interference.

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Post #: 138

RE: Factory Tracks Raceway MT racers - 11/21/2007 3:42:02 PM

ThermalRD

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Batman, are you using an XS3 radio?

(in reply to binaryterror)