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Old 03-22-2008, 05:07 PM   #5551
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Hello again,

Today i've made 12 minutes x 8 times = 96 minutes, a hour and half, with the TC5

The problem that i have with the TC5 is that after each run i have to tighten the front diff, because it end always to loose...i run the front diff about -1/8 turn or less.

Is this normal? When i'm working on the diff the phrase ".. the diffs are something to be lusted after..." that XRC-Cars Mag said just comes up to my mind

Thanks
Nuno
Is there a possibillity that when it was put togehter that you accidently stripped out the threads on the locknut for th e diff bolt??? Just curious, I had to rebuild one after I first installed mine as I got one too tight and it snapped.
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Old 03-22-2008, 06:40 PM   #5552
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Is there a possibillity that when it was put togehter that you accidently stripped out the threads on the locknut for th e diff bolt??? Just curious, I had to rebuild one after I first installed mine as I got one too tight and it snapped.
Hello,

That just happened to me in the first time...but this is a new diff.

I'll just put thread lock on the nut.

Thanks
Nuno
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Old 03-22-2008, 06:42 PM   #5553
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aren't the diff nuts nylocks? you don't use locite with those.
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Old 03-22-2008, 06:58 PM   #5554
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Last edited by RC MARKET; 03-22-2008 at 07:20 PM.
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Old 03-23-2008, 08:45 AM   #5555
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aren't the diff nuts nylocks? you don't use locite with those.
After i ruined my firts diff i had to rebuilted with a metal nut and a m3 screw...that's why i'll put threat lock.

Thanks, anyway.

Nuno
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Old 03-23-2008, 08:56 AM   #5556
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I am going to order one of these. How would a Mamba Max 7700 system work with this car? Is a 5400mah LiPo too much for a battery? I was also thinking of using the Novak 3.5T GTB brushless system but I like the idea of programming my ESC through my PC.
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Old 03-23-2008, 09:34 AM   #5557
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I had a Novak 3.5 system in my TC5 at first, talk about fast!!! I had mine geared at 87/25 and it was smokin! The mamba would be okay also, the only thing with them is the cogging when first taking off from a start, it takes just a split second longer to get going.
being able to adjust your esc is great if you need too, but for just messing around at home it's not worth it.
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Old 03-23-2008, 02:50 PM   #5558
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ok, talking about motor gearing. I have 87/23 with a LRP 4.5. We run in a track with a 60m long straightway. Is it too low ?

I forgot to say I run LiPo. 6000 MaxAmps

Thank you in advice
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Old 03-23-2008, 07:54 PM   #5559
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Originally Posted by cochecito View Post
ok, talking about motor gearing. I have 87/23 with a LRP 4.5. We run in a track with a 60m long straightway. Is it too low ?

I forgot to say I run LiPo. 6000 MaxAmps

Thank you in advice
You should be in the 8.75-9.00 FDR range for that size track with a 4.5 BL motor...Check your motor temp and make sure your are not around 180F after 5 minute run...but also try to gear so that you are reaching max acceleration close to the end of the straight.

Start at 9.00 ratio, and go from there. See if your reaching top speed close to the end of the main straight. If its somewhere in the middle of the straight and the motor is not gaining any more speed, this means that you can go to higher tooth pinion- try one or two teeth more, and check if your top speed is now close to the end of the straight...try to get as close as possible, and once you got it close, stay there, and then run for 2-3 minutes and stop and check your motor temps...if your're around 160F, then you should be able to make 5 minutes...Run for 5 minutes, and check your temps...if your close to 180F, then your gearing is very close, but might be too much...so go a tooth less.

Saludos

Yohan
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Old 03-24-2008, 06:36 AM   #5560
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You should be in the 8.75-9.00 FDR range for that size track with a 4.5 BL motor...

Yohan
Hi,

Can you tell me how do you calculate the FDR (final drive ratio?)?

Thanks,
Nuno
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Old 03-24-2008, 06:45 AM   #5561
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Thank you a lot. After 8 min run I was lower tan 162 F so the gear is correct.

There was low grip.

To calculate your ratio, even your rollout:

http://gearmachine.net/
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Old 03-24-2008, 07:15 AM   #5562
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Originally Posted by cochecito View Post
Thank you a lot. After 8 min run I was lower tan 162 F so the gear is correct.

There was low grip.

To calculate your ratio, even your rollout:

http://gearmachine.net/
Thanks a lot!

Nuno
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Old 03-24-2008, 07:26 AM   #5563
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Obrigado, je je
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Old 03-24-2008, 08:06 AM   #5564
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Gracias, ehehe
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Old 03-24-2008, 08:15 AM   #5565
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Gracias, ehehe
De nada
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