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Old 04-25-2016, 07:26 PM   #10921
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X-ray pistons are slightly larger than AE/TLR pistons, they are not interchangeable.
this is true, I tried my Xray avid splits in AE and TLR shocks and they are too big.
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Old 04-26-2016, 09:53 AM   #10922
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Bummer. I'll have to wait until Xray or VRP make MIP/VRP style pistons.
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Old 04-26-2016, 10:39 AM   #10923
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Check my build out. Still have to get my body custom painted, but this will do for now.

Soldering is pretty mutten dagger IMO - since cleaned up servo wires...













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Old 04-26-2016, 11:50 AM   #10924
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Finished my xb4 today, excited to throw it on the track!
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Old 04-27-2016, 12:39 PM   #10925
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HI All - Coming from 2wd. What's the routine maintenence cycle for 4wd buggies? Contemplating selling a SCT I'm bored with. Just picked up an Xb2 and may spring for an xb4. Also, wondering what a good used price is for a xb4 16. thanks all in advance for any pointers.
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Old 04-27-2016, 01:26 PM   #10926
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HI All - Coming from 2wd. What's the routine maintenence cycle for 4wd buggies? Contemplating selling a SCT I'm bored with. Just picked up an Xb2 and may spring for an xb4. Also, wondering what a good used price is for a xb4 16. thanks all in advance for any pointers.
I think $300 is a fair price for a used roller. $350 with some upgrades. Make sure you take a good look at the outdrives and cvds for wear. They're not cheap to replace.

I change shock oil and diff fluids every 2 race days. Re grease cvds every 4. I don't worry too much about the shock oil getting too old since I'm always changing my setup so I usually change it at least once on race day.
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Old 04-27-2016, 07:49 PM   #10927
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Hey guys, got the car out today and it was awesome I absolutely love it. I am running on high bite prepped clay with slicks using 8k front and rear and the stock slipper. I had multiple issues when getting on the brakes hard the car will do a nose wheelie and i flipped over the front multiple times. Loosen the slipper for that maybe? My brake is turned down to 75 also. The car would also have a waggle coming out of the corners on power, and the back end would be kinda loose mid corner. Would heavier diff oils help?
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Old 04-28-2016, 03:34 AM   #10928
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How many washers go on top of the metal hubs to equal the stock plastic ones
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Old 04-28-2016, 09:32 AM   #10929
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For those running on loose dirt, are the ball diffs a must or do the gear diffs work good? Also assuming you running a center slipper not the diff?
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Old 04-28-2016, 09:47 AM   #10930
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For those running on loose dirt, are the ball diffs a must or do the gear diffs work good? Also assuming you running a center slipper not the diff?
I run on low grip packed dirt indoor. I have wanted to try the ball diffs but $140 to get them has kept me away. Also the gear diffs have worked fine for me so far.
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Old 04-28-2016, 10:38 AM   #10931
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For those running on loose dirt, are the ball diffs a must or do the gear diffs work good? Also assuming you running a center slipper not the diff?
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I run on low grip packed dirt indoor. I have wanted to try the ball diffs but $140 to get them has kept me away. Also the gear diffs have worked fine for me so far.
I like the ball diffs but honestly I think the gear diffs work in this car pretty much anywhere just fine.
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Old 04-28-2016, 10:44 AM   #10932
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I am looking for advice on tuning gear diffs. My track is medium grip clay. Enough grip that lay down chassis cars work well. Test drove my xb4 16 last night with new tires and the track was dusty. It was pushed on corner entry loose on way out of corners. Currently has 10k frt/slipper/10k rear. I have center different to run if needed. Any ideas on what to change? Definitely need to test on prepped track though. Is there a guide on how often tune the difference with different oil somewhere so I can read it. And one more question. 13.5 gearing using 78 spur on a 17-18 second/lap track?
Thanks. Loved building the car
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Old 04-28-2016, 10:53 AM   #10933
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How many washers go on top of the metal hubs to equal the stock plastic ones
its 4mm i believe. i can double check when i get home, but almost positive its 4mm
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Old 04-28-2016, 11:29 AM   #10934
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I am looking for advice on tuning gear diffs. My track is medium grip clay. Enough grip that lay down chassis cars work well. Test drove my xb4 16 last night with new tires and the track was dusty. It was pushed on corner entry loose on way out of corners. Currently has 10k frt/slipper/10k rear. I have center different to run if needed. Any ideas on what to change? Definitely need to test on prepped track though. Is there a guide on how often tune the difference with different oil somewhere so I can read it. And one more question. 13.5 gearing using 78 spur on a 17-18 second/lap track?
Thanks. Loved building the car
Try lowering rear fluid to 5k.
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Old 04-28-2016, 01:30 PM   #10935
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Hey guys, got the car out today and it was awesome I absolutely love it. I am running on high bite prepped clay with slicks using 8k front and rear and the stock slipper. I had multiple issues when getting on the brakes hard the car will do a nose wheelie and i flipped over the front multiple times. Loosen the slipper for that maybe?
Nope, set less brake. No track needs that much brake. Use -30 expo on brake as well to help. You may need to reduce rear droop as well.

My brake is turned down to 75 also.
Try 40.

The car would also have a waggle coming out of the corners on power, and the back end would be kinda loose mid corner. Would heavier diff oils help?
Sounds like a good problem to have on exit. You can try moving the rear inside camber links down, or using a shorter rear camber link hole.
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