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Old 06-17-2015, 03:54 AM   #8446
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Originally Posted by HeavyD99 View Post
I was checking out the custom paint threads and noticed a lot of guys who run XB4's seem to run B5M's as their 2WD. I run one as well.

What is everyone else running for a 2WD?
I run a X-Factory UK X-6s on high grip astro turf & for the most part, it laps faster then the XB4

X-Factory X-6 Cubed when it rains or when racing on grass.
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Old 06-17-2015, 06:56 AM   #8447
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Originally Posted by BigBrute_347 View Post
New to this class. What is a good starting point for gearing a 13.5? Seems like the cam adjuster might not allow pinions much larger than 23 tooth with the 81 tooth spur.
One car has a 75/30 with 17.5, fan and heatsink of course.
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Old 06-17-2015, 09:24 AM   #8448
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Working on getting the buggy wired up. What size wire should I be using? Will be running 6.5T motor. I have started wiring with 12g, but it is tight, would 14g be OK in this application?
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Old 06-17-2015, 09:38 AM   #8449
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Originally Posted by SLOWINSLOWOUT View Post
Working on getting the buggy wired up. What size wire should I be using? Will be running 6.5T motor. I have started wiring with 12g, but it is tight, would 14g be OK in this application?
We run ORCA 13ga wires on the 4WD's using 5.5T with quite a bit of timing and boost with no issues.

Use 12g a for the 1/8 scale only.

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Old 06-17-2015, 12:19 PM   #8450
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Originally Posted by MaricopaAgent View Post
One car has a 75/30 with 17.5, fan and heatsink of course.
That's encouraging to know, should have no issue gearing for a 13.5 then. Thanks for the reply!
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Old 06-18-2015, 12:39 AM   #8451
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What pinion gear are people running when running a 13.5t motor on a medium size outdoor track.
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Old 06-18-2015, 05:56 AM   #8452
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Originally Posted by HSV427 View Post
What pinion gear are people running when running a 13.5t motor on a medium size outdoor track.
Took mine out with a 13.5 for the first time yesterday on a medium sized indoor track. The biggest pinion I could fit with the 81t spur center diff was a 27t. Felt like it needed more gear (motor temp 135) so the 78t spur is on the way.
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Old 06-18-2015, 08:27 AM   #8453
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Old 06-18-2015, 08:52 AM   #8454
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The smallest XRAY spur for the slipper is a 75T. If using the center diff, the smallest available is a 78T.

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Old 06-18-2015, 03:30 PM   #8455
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Originally Posted by shuless View Post
I run a Kyosho RB6 with the Zack Rogers setup. I have had every 2wd buggy except the Xray and I have never had one handle and drive better than this! I would however be interested in trying an Xray 2wd
I would assume the RB6 is incredible as I run my SC6 in mid motor on every type of track condition and the car is just perfa. Although many believe mid motor setups won't be kind on loose low bite conditions the Kyosho SC6 thrives.

Sorry I know this is the XB4 thread but I had to throw in my experience with my SC6.
However I will be purchasing the XB2 when released.
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Old 06-18-2015, 10:58 PM   #8456
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Thanks for the replies, I'll try the 75t spur, what would be a good starting pinion for the 13.5. Thanks
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Old 06-19-2015, 08:46 AM   #8457
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For 2wd I'm running the Team C TC02 Evo and doing really well with the car, only running it indoors. Just waiting on the XB2.

Anyone running VRP Pistons in the XB4? If so, which ones? I'm thinking about trying them. I'm fighting the rear socks on my XB4 right now.

Indoor high bite track and the rear end just isn't stable at all. Running 2 dot springs front and rear, 1.3x3 pistons, 40f and 35r oils. Rear has as much droop and I can put in it. No internal limiters and shock ends and unscrewed 3mm.
Landing off of a jump on the downside and the rear end gets upset and wants to spin out. Any kind of bump and it's rebounding up hard and dancing. It seems more like a chassis kicker than just suspension rebound. What are you guys doing to settle down the rear end? It's a 14 spec BTW.
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Old 06-19-2015, 09:05 AM   #8458
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Quote:
Originally Posted by pickle311 View Post
For 2wd I'm running the Team C TC02 Evo and doing really well with the car, only running it indoors. Just waiting on the XB2.

Anyone running VRP Pistons in the XB4? If so, which ones? I'm thinking about trying them. I'm fighting the rear socks on my XB4 right now.

Indoor high bite track and the rear end just isn't stable at all. Running 2 dot springs front and rear, 1.3x3 pistons, 40f and 35r oils. Rear has as much droop and I can put in it. No internal limiters and shock ends and unscrewed 3mm.
Landing off of a jump on the downside and the rear end gets upset and wants to spin out. Any kind of bump and it's rebounding up hard and dancing. It seems more like a chassis kicker than just suspension rebound. What are you guys doing to settle down the rear end? It's a 14 spec BTW.
I don't see xb4 specific pistons on the vision website. They pistons need to be thinner for the xb4 so using kyosho or Losi pistons won't work.

I've had good luck using Schelle or Avid pistons. Both fit the shock body much better than stock pistons and control the shocks better.
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Old 06-19-2015, 08:27 PM   #8459
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try 1 dot rear.. 3 dot front.
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Old 06-20-2015, 06:23 AM   #8460
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Or ae red/yellow front springs and black rear.
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