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Old 06-29-2015, 10:44 AM   #3361
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I bought a new servo saver. it made all the difference.

ok, i'll stick with it bone stock. it ran pretty well but I need to figure a better setup.

i also have been having some gear leaks. i'll add more grease i guess.

it's a solid car and for the money it's unmatched.
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Old 07-24-2015, 06:04 AM   #3362
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If anyone is looking for a new Zero S kit or needs replacement parts, Hobbyking has then on sale right now for under $50 USD. It is of course the rebranded TD10, but still the exact same car.

TD10 Kit
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Old 08-03-2015, 08:56 PM   #3363
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http://www.kijiji.ca/v-hobbies-craft...avigationFlag=

ok what do you guys think of this
I kinda look around and found a pro ver. of this
too bad there isnt more info
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Old 08-03-2015, 09:51 PM   #3364
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Looks like a decent sakura Xi clone.
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Old 08-05-2015, 06:50 PM   #3365
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too bad i cant find any narrow cf chassis. might have to ask Phill to make one for me
so chuck did you find it easer to work on the sport ?
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Old 08-05-2015, 07:27 PM   #3366
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The zero and xi are very similar. To be honest, the optional cool pink floating servo mount is what got me to like the xi. Performance/tuning wise, they are very similar cars.
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Old 08-12-2015, 06:43 AM   #3367
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Has anyone else had issues when mounting the top deck? It seems like it is flat on it's own, but once mounted and in place/screwed down it is not flat anymore. It is flat/level from the rear tower until the aluminum upper deck post, but from that post to the front shock tower it takes a noticeable downward dip. This is causing the whole chassis to tweak.

Also, my spur gear is just a tad wobbly...It seems that the center pulley pieces that bolt through from both sides of the spur gear did not line up 100% with the holes in the spur gear and may have caused it to tweak just a little?

Anyone else have these issues?? The top deck issue is especially confusing to me...
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Old 08-12-2015, 07:34 AM   #3368
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Check you belt tension. If it is too tight, yoyr top deck will bend.
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Old 08-12-2015, 08:20 AM   #3369
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Figured out the top deck issue. I had the wrong thickness aluminum spacer on top of the steering assembly. Too thin.

I'm good to go now. Just still wondering about this wobbly spur gear...

Last edited by xjwolfpacker; 08-12-2015 at 09:00 AM.
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Old 08-12-2015, 09:50 AM   #3370
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Quote:
Originally Posted by xjwolfpacker View Post
Figured out the top deck issue. I had the wrong thickness aluminum spacer on top of the steering assembly. Too thin.

I'm good to go now. Just still wondering about this wobbly spur gear...
Great job on the steering spacer.
On the spur make sure it's sitting flush against the adapter. Some of the stock spur gears are so so. I have upgraded all of my zeros to the alumni. Holders
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Old 08-12-2015, 10:47 AM   #3371
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Thanks for the suggestions guys.

Can anyone point me in the right direction which parts I need if I want to change to a 19t center pulley? I have the 19t pulley, but not sure exactly what I'll need to attach it to the spur?

Also, what pinion/FDR would I want to run if everything is bone-stock? So far, i've built it with all stock parts, including the 80t spur. I'll be racing with a D3.5 17.5 motor. What size pinion is a good starting point?

How do you calculate FDR?
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Old 08-12-2015, 02:47 PM   #3372
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The plastic 19T pulley for the Xi Sport will be a direct bolt on. The parts tree was pretty low cost, last i checked. Maybe 4 dollars? With a D3.5, you'll probably want an fdr in the 3.5 to 5.0 range. That's going to be very difficult with the stock spur gear. I reccommend getting the team associated 66T spur (again, probably 4 bux). The bigger issue is going to be changing gears without the vertical motor mount. I've done it before, but strongly reccomend against wasting 20 minutes of your life each time you need to move your motor.

Once you change to. 19t pulley, the final drive ratio will b easy to calculate. I'll type th formula below in simple algebra.


FDR = (transmission ratio)(motor gear ratio)
FDR = (38t diff/19t pulley)(66t spur/33t pinion)
FDR = (2.0) (2.0)
FDR = 4.0
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Old 08-13-2015, 07:26 AM   #3373
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Thanks! That's a huge help!

Anyone have a source for SAK-06 (Spur gear shaft set)? Seems EVERYONE is out of stock.
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Old 08-13-2015, 08:33 AM   #3374
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The spur shaft for the xi sport is also a direct bolt on. Hope that helps!
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Old 08-13-2015, 05:02 PM   #3375
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You've been a huge help.

So, does this sound like a decent starting point?

FDR of ~4.26 for 17.5 blinky TC class. Will likely run the D3.5 17.5 with the timing advanced. (Or do I want a higher/lower FDR? You mentioned 3.5-5.0 range)

Current setup:
D3.5 17.5
Pinion - 33
Spur - 74
Diff gears - 38t
Pulley - 20t

FDR=1.9*2.24=4.26
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