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Old 05-07-2015, 05:33 PM   #8176
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Hey everyone I have a question about Exotek for this buggy. Can I use the Exotek parts that for the XB4 on the XB4 2015? The reason I ask because I see that XB4 and the 2015 has change a bit..

THanks
Hulk,
I have recently bought exotek:
#1350 aluminum cvd cups
#1366 aluminum hubs
#1367 aluminum servo mounts
#1407 aluminum shock caps
#1409 hex and #1408 hex
#1349 steering rack
#1510 steering bell crank (which is marked 2015**)

All parts fit the 2015 version perfectly. Maybe you are looking at some of these option parts also, but I can verify that they fit very nicely.

The #1510 steering rack is designed for when you want to have the servo on the RIGHT side of the car, for example when you are running the rearward motor configuration. If you are planning on having your servo on the left side, the #1420 bellcrank set will work just fine. You just have to decide what side you plan to put the servo on and then purchase the correct bell crank.
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Old 05-07-2015, 07:52 PM   #8177
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I just finished building my XB4-15 and I am having a bit of an issue. With the shocks built as per the kit, measured properly, matching; with the car on the stand, the knuckles hit the arm. This is with the suspension fully extended. Am I missing something? I know with the car at ride height, it doesn't interfere, but when the suspension will be extended with the car in the air, if I make steering inputs it will hit. Anyone else have this problem?

My other issue with the car is the tolerances. My MBX-7 after quite a bit of track time is still nice and tight. I can put it on the HUDY and there is no play within the suspension. This car, brand new, never even had power through it yet and I can move pretty much all movements a degree off. I don't think that this is something that will settle or wear in. Anyone else notice this? Normal?

Thanks in advance!
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Old 05-07-2015, 08:13 PM   #8178
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Originally Posted by GrandeGixxer View Post
I just finished building my XB4-15 and I am having a bit of an issue. With the shocks built as per the kit, measured properly, matching; with the car on the stand, the knuckles hit the arm. This is with the suspension fully extended. Am I missing something? I know with the car at ride height, it doesn't interfere, but when the suspension will be extended with the car in the air, if I make steering inputs it will hit. Anyone else have this problem?

My other issue with the car is the tolerances. My MBX-7 after quite a bit of track time is still nice and tight. I can put it on the HUDY and there is no play within the suspension. This car, brand new, never even had power through it yet and I can move pretty much all movements a degree off. I don't think that this is something that will settle or wear in. Anyone else notice this? Normal?

Thanks in advance!
Pics would be nice. You must have built something wrong. Check it again.

You should build a hotbodies d413 if you want to see slop. This is an offroad car not a touring car. There has to be some slop or everything will be bound up as soon as it gets dirty.
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Old 05-08-2015, 03:20 AM   #8179
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I'll post some pics tonight.
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Old 05-08-2015, 09:07 AM   #8180
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I'll post some pics tonight.
I was just looking at my car trying to figure out what could be wrong other than if you have the hub spaced down it might barely hit the arm.
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Last edited by rcgod; 05-08-2015 at 09:38 AM.
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Old 05-08-2015, 03:46 PM   #8181
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It won't let me take any pics. The only thing I can think is that the shocks are too long? I built them like the manual says with a 2mm spacer inside and 1.5mm gap between the non threaded portion and the end. This makes the shock come out to 79mm total. Can someone please measure their shock for me and see what their measurement is? Thank you!
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Old 05-09-2015, 01:17 AM   #8182
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Originally Posted by GrandeGixxer View Post
It won't let me take any pics. The only thing I can think is that the shocks are too long? I built them like the manual says with a 2mm spacer inside and 1.5mm gap between the non threaded portion and the end. This makes the shock come out to 79mm total. Can someone please measure their shock for me and see what their measurement is? Thank you!
My front shocks are 79mm eye to eye.
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Old 05-09-2015, 07:17 AM   #8183
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Man, I don't know what it is then. I guess I'll tear it back apart and make sure everything is where it goes. I have the c-hubs in the upper position as well.
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Old 05-09-2015, 07:18 AM   #8184
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Thank you for taking the time to do that for me, I appreciate it!
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Old 05-09-2015, 07:38 AM   #8185
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Thank you for taking the time to do that for me, I appreciate it!
No problem. If you want to pm me and you can either email or text me the pics and maybe we can figure it out without you tearing everything apart.
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Old 05-09-2015, 09:46 AM   #8186
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Did you double check you had the shocks on the right side of the tower? I made that mistake when building mine
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Old 05-09-2015, 03:44 PM   #8187
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Well first race with the xray today. Man my 2015 car was hooked. I was able to TQ by a few seconds. But in the main I made a mistake in the first corner and after I was marshaled i was dead last. Was able to work back up to 5th. Was disappointed with myself and the mistake I made. Sucked I tq'ed all 3 rounds and knew I had the car to beat. This was running outdoor on semi loose dusty track.
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Old 05-09-2015, 04:39 PM   #8188
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What brand of tires is everyone using I switch to aka from proline but think of going back. My thinking is that aka give a better form inserts when u buy premount tires. Prolines gives u the white inserts
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Old 05-09-2015, 06:00 PM   #8189
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For our super hard packed indoor track we all run slicks. My fav combo is sweep silver slicks with aka foams. Sweep foams are nice but break down before the tire is even halfway worn out where I can just about reuse aka's

To be fair I haven't tried proline or JC foams as much to compare. But in any case closed cell all the way.
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Old 05-09-2015, 06:20 PM   #8190
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Had the first run of '15 XB4 yesterday. I am new and crash a lot to put it into context, but I would have to say the XB4 is not nearly as robust as my B5M which I have been crashing endlessly since Feb at our track (every second Saturday). It has never broken and stopped for any reason, except when I used the steering horn that came with the servo. It never did quite fit. The kit steering horn actually did fit after all.

Yesterday I managed to pop the ball caps at the rear twice and stripped the steering horn. All in 2 races. A better horn needed perhaps?
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