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Old 01-25-2014, 06:05 AM   #3886
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I called rcamerica talked to a xb4 driver told him to send me what u would use and parts he has.
what batteries will fit and work well roar appv going to jc race at smac going to run 7.5 or 8.5 tight track med speeds
I roll with a Tekin 6.5 and run SMC saddles without issue. If needed, I dial a little power out. Id rather have more then fall short.
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Old 01-25-2014, 06:39 AM   #3887
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The Orion 5500 pack works, the trak power saddle works as well that's what I run. You'll want a 7.5 at our track (SMAC) if your a mod driver. 8.5 will be smooth but if you go to larger tracks it'll be a bit to mild. The drivetrain in this car is very free so a 7.5 is a lot of motor in it.
thanks what tires should i run and how should i gear it "7.5" and 6.5
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Old 01-25-2014, 10:11 PM   #3888
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thanks what tires should i run and how should i gear it "7.5" and 6.5
M4 ions , new JC dirt webs if you ca get em , scrubs suburbs M4

Gearing 6.5 19t 7.5 20-21t
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Old 01-25-2014, 11:06 PM   #3889
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Tires depend on the track. 6.5t is usually a 19t with the stock 81t spur, although you can go higher.
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Old 01-26-2014, 06:37 AM   #3890
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Need some advice with setup before I get too frustrated and sell it. Car works great on high bite but can't get enough forward bite on looser tracks. From mid corner to exit I have to drive it like a 2wd buggy or the rear comes around. Have avid pistons, tried 1 dot rear springs, 2 dot progressive fronts, 10/5, 10/3, 7/3, 5/3, 5/2 diff fluids, different camber links, different arm mounting positions, added weight to rear. Also removed rear spacer and sanded down arm mounts, rear hubs all the way forward, chassis at low bite settings. Car has tons of steering have to run dr at 70% to drive it. Also tried every tire I can and still no better.
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Old 01-26-2014, 06:57 AM   #3891
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Need some advice with setup before I get too frustrated and sell it. Car works great on high bite but can't get enough forward bite on looser tracks. From mid corner to exit I have to drive it like a 2wd buggy or the rear comes around. Have avid pistons, tried 1 dot rear springs, 2 dot progressive fronts, 10/5, 10/3, 7/3, 5/3, 5/2 diff fluids, different camber links, different arm mounting positions, added weight to rear. Also removed rear spacer and sanded down arm mounts, rear hubs all the way forward, chassis at low bite settings. Car has tons of steering have to run dr at 70% to drive it. Also tried every tire I can and still no better.
What motor, esc settings, shock fluid, and type of surface are you running on?
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Old 01-26-2014, 07:14 AM   #3892
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Need some advice with setup before I get too frustrated and sell it. Car works great on high bite but can't get enough forward bite on looser tracks. From mid corner to exit I have to drive it like a 2wd buggy or the rear comes around. Have avid pistons, tried 1 dot rear springs, 2 dot progressive fronts, 10/5, 10/3, 7/3, 5/3, 5/2 diff fluids, different camber links, different arm mounting positions, added weight to rear. Also removed rear spacer and sanded down arm mounts, rear hubs all the way forward, chassis at low bite settings. Car has tons of steering have to run dr at 70% to drive it. Also tried every tire I can and still no better.
im running warn ions on a super tight small track with a 10.5 motor. last time was too cold to water (dirt was 10 degreesF) and i noticed the same thing have you tried other guys cars to see if they dont get loose on power ?.
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Old 01-26-2014, 07:17 AM   #3893
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Anyone know the part number for the NT1 diff gear sets for the xb4? Possibly where they might be in stock?
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Old 01-26-2014, 07:28 AM   #3894
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What motor, esc settings, shock fluid, and type of surface are you running on?
Medium bite clay mix indoors. Reedy 6.5 motor, HW ESC, lowest punch no timing. 35/30 shock oil.
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Old 01-26-2014, 07:36 AM   #3895
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Anyone know the part number for the NT1 diff gear sets for the xb4? Possibly where they might be in stock?
XRA335030 is the part number. Finding them in stock is another story.
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Old 01-26-2014, 08:03 AM   #3896
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Thanks you sir.
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Old 01-26-2014, 08:11 AM   #3897
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rc god did you do rear tranny mod of cutting plastic chassis.That helped me a lot .
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Old 01-26-2014, 08:20 AM   #3898
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rc god did you do rear tranny mod of cutting plastic chassis.That helped me a lot .
I have the 2014 so I removed the spacer didn't feel any difference.
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Old 01-26-2014, 08:26 AM   #3899
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Was thinking maybe I need to go softer on rear spring and stiffer front. Stiffest is have is stock and 2 dot progressive softest rear is 1 dot or ae yellow. Any suggestions on what springs to try? Was thinking maybe Losi low freq rear around 2# and something around 4# front.
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Old 01-26-2014, 09:31 AM   #3900
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Was thinking maybe I need to go softer on rear spring and stiffer front. Stiffest is have is stock and 2 dot progressive softest rear is 1 dot or ae yellow. Any suggestions on what springs to try? Was thinking maybe Losi low freq rear around 2# and something around 4# front.
I run stock springs up front and kyosa white rear. also a 1 dot rear sway bar. Front diff is 5K rear 2K. RR hinge pin holder cups 1 center out. I was still a little loose and then I Loosening the slipper. Now I don't have enough steering. I wish I had a little more. I am still looking and working to get just a little more.

Hope this helps
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