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Old 12-15-2012, 08:47 AM   #361
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The waiting is the hardest part. So, for those who have theirs, any race days and initial thoughts?
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Old 12-15-2012, 09:41 AM   #362
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Originally Posted by bobf24 View Post
better take your diffs back apart . . . xray says shimming = bad news bears
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Originally Posted by Odin544 View Post
Thats nice to see Xray responding publicly to concerns people have.
Yes, I really do appreciate the feedback from Xray on this. I hope they are right, but I fear they are not.
From back when I used to run AE TC3`s and Tamiya EVO cars, I learned to shim properly the hard/expensive way. I practice the same on my current 1/10 Lazer ZX5 FS SP2 as well. Would be really surprised if this car is that much different

My diffs have A LOT of play with no shims and I cant imagine the gears expanding that much. Even so, it would mean that we need to preheat our diffs before the start of a race then, wouldnt it? what kind of temps are expected here? Doesnt make any sense to me.

there are other XB4`s at my local track also, so I`ll get a chance to compare mesh with other cars. Need to get to the track soon...

Anyway, I`ll run my diffs with the shiming, and keep an eye on the mesh after every run. On my own risk of course

Car look great, and the shocks must be the most straight forward shock build ever!
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Old 12-15-2012, 11:50 AM   #363
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Saw two in action today. Got punished really bad around a high grip track. No issues what so ever with diffs and what not. Looked very good.

Only thing I am concerned about are that 3mm shock tower. Should be a little bit thicker in my opinion.
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Old 12-15-2012, 11:50 AM   #364
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Saw two in action today. Got punished really bad around a high grip track. No issues what so ever with diffs and what not. Looked very good.

Only thing I am concerned about are that 3mm shock tower. Should be a little bit thicker in my opinion.
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Old 12-15-2012, 11:52 AM   #365
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Did run a few packs today and no problem with the diffs so far..
Did have one hick up, the safty collar for the pins in the center shafts are too soft, the front pin came out on my brothers car and are about to do so on mine too..
Besides from that the car felt great and was wery nice to drive

Partnr 365470
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Last edited by ps71; 12-15-2012 at 12:09 PM. Reason: added info
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Old 12-15-2012, 02:18 PM   #366
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Mine will be here in a couple of days. Does anyone have a part number for the body? I need to get some painted.
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Old 12-15-2012, 02:50 PM   #367
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Quote:
Originally Posted by john watkins View Post
Mine will be here in a couple of days. Does anyone have a part number for the body? I need to get some painted.
John,
http://rcmarket.com.hk/product_info....bcca22e38103c9

Are you going to run in 17.5 or mod?
I'm looking at this car as well but with no lower tooth spur gears (yet) can it be geared low enough for stock?
Only time will tell.
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Old 12-15-2012, 02:58 PM   #368
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John,
http://rcmarket.com.hk/product_info....bcca22e38103c9

Are you going to run in 17.5 or mod?
I'm looking at this car as well but with no lower tooth spur gears (yet) can it be geared low enough for stock?
Only time will tell.
Thanks, I am going to run mod. I believe it's only a matter of time before kimbrough or others will bring out stock spurs. By looking at the available spurs you maybe able to come close to getting a stock FDR if you run a high rpm motor and or rotor.

Can't wait , only thing I didn't figure on was I now need metric tools.
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Old 12-15-2012, 03:07 PM   #369
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Part number for the body is in the manual.
No. 369700, wing is No. 363510 too if you want that.
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Old 12-15-2012, 04:05 PM   #370
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I should get mine in the next few weeks.
Still wondering what pinion to start with, with a 7.5T
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Old 12-15-2012, 05:50 PM   #371
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What is the diameter of the shaft which the spur gear slides on too?
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Old 12-15-2012, 06:40 PM   #372
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Already some good info at Petit RC.
http://www.petitrc.com/setup/xray/Se...tsXrayXB4.html
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Old 12-15-2012, 07:15 PM   #373
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Quote:
Originally Posted by Edumakated View Post
I guess I'll need to watch my slipper. On my Durango, it is locked down completely
Most other buggies will provide slip via ball-diff...

with a gear diff it's important to let the slipper do the work as intended.
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Old 12-15-2012, 09:42 PM   #374
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Most other buggies will provide slip via ball-diff...

with a gear diff it's important to let the slipper do the work as intended.
ball diff slip? what?
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Old 12-15-2012, 11:09 PM   #375
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Originally Posted by john watkins View Post
Thanks, I am going to run mod. I believe it's only a matter of time before kimbrough or others will bring out stock spurs. By looking at the available spurs you maybe able to come close to getting a stock FDR if you run a high rpm motor and or rotor.

Can't wait , only thing I didn't figure on was I now need metric tools.
Hey John let me know if your going to be running those special swaybars on your XB4. Might get you to hook me up with some
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