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Old 08-23-2016, 07:08 AM   #11281
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I'm going to try the 500,000 to potentially 1,000,000 center diff like as Bent recommends. I will take their word for it as they are very experienced with this winning buggy and how it likes to be ran.

My question is, do any other 4wd buggies frequently run this heigh oil weight of oils weight in medium bite to high bite clay? Im new to 4wd but from what I've seen for 10th scale 4wd' has been, at most from what I see, upper teens.

Unless I'm wrong and with a limited sample pool, what makes the xb4 take such higher weight oils and why? What makes the xb4 different? Thx all
not quite as high, most 1/10 4wd buggies run from like 60-300k in the center diff.

1/8 scale's run in the teens.

there's a few reason's for this. 1/10 scales are longer in comparison to 1/8 scale, not actually longer, but as a scale they're longer if that makes sense.

also, the nature of 1/10 is that they prefer to be balanced, power swapping back and forth from back to front makes the car twitchy and hard to drive being that they're small and light. they just like to be more balanced. where 1/8 scale have enough weight to kind of carry them, and they benefit from the added traction of a thinner center diff oil.

just start with 500k in the center diff and you'll be great. trust me these cars like it, you won't be disappointed. the car will now pull you out of the corners instead of being hitchy and sliding out some times, you will be able to power out of corners hard and not lose traction easily. the car will feel stable and fast.
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Old 08-23-2016, 07:18 PM   #11282
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Originally Posted by JAE View Post
I'm going to try the 500,000 to potentially 1,000,000 center diff like as Bent recommends. I will take their word for it as they are very experienced with this winning buggy and how it likes to be ran.

My question is, do any other 4wd buggies frequently run this heigh oil weight of oils weight in medium bite to high bite clay? Im new to 4wd but from what I've seen for 10th scale 4wd' has been, at most from what I see, upper teens.

Unless I'm wrong and with a limited sample pool, what makes the xb4 take such higher weight oils and why? What makes the xb4 different? Thx all

I would say 1mil or even 500k is to high for clay even if its high bite clay. I normally run 300k on a medium/high bite clay track, 200k on medium clay track and 100k for med/low dirt/clay track. I have tried 500k when i was at a high bite clay track when running slicks and I was able to knock off a fast azz lap but I did better overall with 300k in the center diff overall time wise because it was just easier to drive.
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Old 08-23-2016, 08:48 PM   #11283
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I will try all these options starting with 500k. So I have a point of reference, the slipper would resemble most which weight in everyone's opinion? Thx

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I would say 1mil or even 500k is to high for clay even if its high bite clay. I normally run 300k on a medium/high bite clay track, 200k on medium clay track and 100k for med/low dirt/clay track. I have tried 500k when i was at a high bite clay track when running slicks and I was able to knock off a fast azz lap but I did better overall with 300k in the center diff overall time wise because it was just easier to drive.
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Old 08-23-2016, 09:09 PM   #11284
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500k is perfect for me on high bite clay.
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Old 08-24-2016, 06:54 AM   #11285
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I will try all these options starting with 500k. So I have a point of reference, the slipper would resemble most which weight in everyone's opinion? Thx
0-1mm slipper setting = to about 1 mil to 2 mil cst. although, they're not perfectly comparable because a slipper doesn't really work the same and it's either giving you full power or slipping for a period of time, and not near as much variation back to front. a gear center diff is always giving you full power but it's just applying it back to front at varying levels, depending upon traction/load.

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500k is perfect for me on high bite clay.
same, i think 500k on med-high bite is good. 1 mil on the absolute highest bite clay ever. 1-2 mil or slipper on carpet/astro. i usually run a slipper though.
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Old 08-25-2016, 12:19 AM   #11286
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Very helpful. Good to know. Slipper is working fine for me now and look forward to YE contrast with the gear diff, Thx. Another note, what ride height range is used most in medium and high bite clay with medium size jumps? Any different than xb2 ? Thx

thx
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Originally Posted by lyons238 View Post
0-1mm slipper setting = to about 1 mil to 2 mil cst. although, they're not perfectly comparable because a slipper doesn't really work the same and it's either giving you full power or slipping for a period of time, and not near as much variation back to front. a gear center diff is always giving you full power but it's just applying it back to front at varying levels, depending upon traction/load.



same, i think 500k on med-high bite is good. 1 mil on the absolute highest bite clay ever. 1-2 mil or slipper on carpet/astro. i usually run a slipper though.
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Old 08-25-2016, 07:02 AM   #11287
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Very helpful. Good to know. Slipper is working fine for me now and look forward to YE contrast with the gear diff, Thx. Another note, what ride height range is used most in medium and high bite clay with medium size jumps? Any different than xb2 ? Thx

thx
typically I run 19-21mm on clay. it's highly track dependent. basically just go as low as you can without chassis slapping everywhere. your chassis might rub slightly 1-2 spots around the track but it shouldn't hit hard enough to slow you down or unsettle the car or anything. so setup for basically no slap/scrape across the entire track besides maybe 1-2 tough spots, that's how you know your ride height and shock package is setup well for the track.

then once you have your shock package/ride height setup you can start changing things like camber and roll centers to improve traction and fine tune the car so that it performs well while the suspension is doing the best job possible. that's how i setup anyway.
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Old 08-25-2016, 03:47 PM   #11288
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Anyone running 22-4 fronts with the .75+ hubs?

If so, is it normal for the axle to not fill the wheel nut? I'm finding that the wheel nut is short halfway of being filled
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Old 08-26-2016, 07:06 AM   #11289
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Anyone running 22-4 fronts with the .75+ hubs?

If so, is it normal for the axle to not fill the wheel nut? I'm finding that the wheel nut is short halfway of being filled
thats one way to explain it LOL...do you mean there's not enough exposed threads on the axle to go all the way through the wheel nut? i think thats what you're trying to say haha

but that sounds like the offset is wrong. i would look into it. or use low profile wheel nuts if you don't care about running legal or dialing in your track width.
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Old 08-26-2016, 09:27 AM   #11290
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I went off the first page

Most who have gone to the 12mm hexes are using the +0.75mm (#365355) on the front and +1.5mm (#365356) on the rear using standard 12mm rear wheels and TLR 22-4 front wheels which have the same offset as the Xray 12mm front wheels (#369912). Car becomes very stable with this combina

Maybe I'll low profile wheel nuts
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Old 08-26-2016, 09:56 AM   #11291
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I went off the first page

Most who have gone to the 12mm hexes are using the +0.75mm (#365355) on the front and +1.5mm (#365356) on the rear using standard 12mm rear wheels and TLR 22-4 front wheels which have the same offset as the Xray 12mm front wheels (#369912). Car becomes very stable with this combina

Maybe I'll low profile wheel nuts
Yep, you just have to run low profile wheel nuts. I had/have a bunch of tlr 4wd front wheels and when I use them i use a low pro nut.
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Old 08-29-2016, 12:43 PM   #11292
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How do you guys keep your motors as cool as possible on the XB4?
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Old 08-29-2016, 01:00 PM   #11293
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How do you guys keep your motors as cool as possible on the XB4?
the xb4 platform is no different than any other...use a fan if need be...
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Old 08-29-2016, 02:11 PM   #11294
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Xray wheel nuts are low profile, at least the new ones they sell per my Xray dealer. . One of the few items that are cheaper than some competitors.
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Yep, you just have to run low profile wheel nuts. I had/have a bunch of tlr 4wd front wheels and when I use them i use a low pro nut.

Last edited by JAE; 08-29-2016 at 04:25 PM.
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Old 08-30-2016, 10:42 AM   #11295
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use a TLR front 4wd wheel nut. It's a lot lower profile than any others.
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