New XRAY 808

Old 11-28-2010, 06:38 AM
  #8611  
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Originally Posted by juzza99
+1, ive got 2 xray 808 2010 models..1 with all the cnc upgrades and the other totally stock, and i have to say the stock one is sooo much easier to drive, the cnc parts make the car too stiff IMO..

On another subject, i cant work out what all the fuss is with the bulkhead bearings, just maintain them like they should be done and they will never let you down.
If you only knew. Right now I can push my car and it rolls like 20ft before stopping, with the stock setup and grease even after a couple of tanks I would push my car and it would roll maybe 5ft. I even put grease on the new setup around the pinion, just not as much. You dont know the difference unless you tried it then you would understand.
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Old 11-28-2010, 12:35 PM
  #8612  
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Originally Posted by mcion
If you only knew. Right now I can push my car and it rolls like 20ft before stopping, with the stock setup and grease even after a couple of tanks I would push my car and it would roll maybe 5ft. I even put grease on the new setup around the pinion, just not as much. You dont know the difference unless you tried it then you would understand.
I know what your saying, but I have to agree with juzza99. For people like him and myself who have no problems with the stock 09 diff set up, and who don't have to grease the pinion bearings until the car won't free roll, it seems a lot of expense and effort for something that isn't really a problem for us.
I am sure my 09 is not as smooth and free rolling as yours, but it's plenty smooth enough for my needs.

Just out of interest, I have a Serpent 811 buggy waiting here for the new radio tray. It has a very similar diff set up to the X-Ray with all Hudy components etc. The bearings are fitted on a one piece retainer with shims at either end, and this buggy rolls more freely than any buggy I have owned. Not a diff problem in site either, (just the radio tray problem which has now been addressed ). If X-Ray were to look at this set up in the new 11 car it wouldn't be a bad move. Seems like the Serpent diffs are actually based on the 808 set up, but they have improved on it greatly in their actual design, which is one of the reasons I looked at getting the Serpent 811 in the firt place - it was so kinda 808 ish in many ways. I intend to run the 811 next season, but my 808 (09) will be close at hand as a trusty back up.
If the 811 proves to be half as reliable as my 808 has been over the last two years, I will be a happy racer.

Last edited by grizz1; 11-28-2010 at 12:46 PM.
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Old 11-28-2010, 01:17 PM
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I had around 8 hours race time on my current set of 13x20 bearings and today I put almost another 5 hours running on them all flat out on a tarmac track for a club demo day.. and I mean flat out..we got paid to scream around a track all day 10-6 with a free lunch thrown in I did a check and grease of the rear bearings last night..still as new..didn't touch the front ones at all,in fact I don't think I've checked those in over 8 hours runtime now.I'll be interested to see what comes out next year but I'm having zero problems with my bearings and they spin plenty free enough for me.
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Old 11-28-2010, 01:19 PM
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Been hearing a few reports of the serpent having bulkhead bearing issues also
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Old 11-28-2010, 01:32 PM
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I really hope the 2011 fixes mainly how free the drivetrain rolls. I have a rc8t and it spins 200x better and smoother than the 808 drivetrain. It has no mods or anything just stock setup. Im not willing to do all that effort for the previous 808 mod though. Ill wait for the 2011 im sure theyll do something about it otherwise Ill be going Losi or Associated
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Old 11-28-2010, 01:33 PM
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yeh me too.(heard about a few serpent bearing problems that is).just downloaded the serpent manual for a look at how they did the pinion bearings on the 811..Basically the same as the 808..13x19 bearngs just on a captured type insert.Not sure I like the idea of a second pin holding the pinion gear.More parts to wear out and the design doesn't look as though it would pack with grease as easily as the xray alloy collar setup.I see they went even bigger on the wheels with 15x21's as well..lots of flanged bearings as well.I bet that cuts down on the number of places you can get the bearings as well as putting up the price.
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Old 11-28-2010, 03:41 PM
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Originally Posted by Jaz240
Been hearing a few reports of the serpent having bulkhead bearing issues also
I think that's more to do with the kit bearings than anything. Once replaced with after market bearings things seem to be fine, or so I believe - but you would be more in the know than me Jaz. I don't follow the track talk all that much. It's hard to know who to believe these days with all the competition between brands etc. I just find something that works for me, and leaves a little folding stuff in my wallet

Last edited by grizz1; 11-28-2010 at 03:44 PM. Reason: having a blonde day with the spelling :)
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Old 11-28-2010, 05:16 PM
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I have seen the stock bearings fail in person. They fail all over the car so they are definitely garbage. As far as whether or not it has bulkhead and pinion design problems that I don't know for sure. I have been hearing bad things but have never seen it so it's just heresay. I can tell you that all 5 people who bought and raced the serpent here in Arizona have all sold them and switched to other cars, mostly due to the constant blown servos.
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Old 11-28-2010, 05:25 PM
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Guys are there any news of the 2011 808?
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Old 11-28-2010, 05:46 PM
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Originally Posted by didrace
Guys are there any news of the 2011 808?
There have been some pictures floating around and it is pretty much confirmed at that it is coming out sometime in the next couple of months, but nothing is official yet.
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Old 11-28-2010, 05:51 PM
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think theres any chance of a new truggy also?
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Old 11-28-2010, 06:31 PM
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That's interesting! Any theory why the modded drivetrain is much more smoother than the stock drivetrain? AFAIK, the layout is still the same, the changes are the XT8 bulkheads, pinion, bearing and drive shaft. I am curious how those XT8 and MP9 parts make it so much smoother...

Originally Posted by mcion
If you only knew. Right now I can push my car and it rolls like 20ft before stopping, with the stock setup and grease even after a couple of tanks I would push my car and it would roll maybe 5ft. I even put grease on the new setup around the pinion, just not as much. You dont know the difference unless you tried it then you would understand.
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Old 11-28-2010, 06:40 PM
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Originally Posted by ganymede
That's interesting! Any theory why the modded drivetrain is much more smoother than the stock drivetrain? AFAIK, the layout is still the same, the changes are the XT8 bulkheads, pinion, bearing and drive shaft. I am curious how those XT8 and MP9 parts make it so much smoother...
You don't have to use any grease on the bearings so they spin freer. Now that it is indoor, I don't really use much grease since there isn't any dust on the indoor tracks.
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Old 11-28-2010, 06:45 PM
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Just the grease on the bearings? Anyone knows how many teeth on the XT8 pinion? 10T as with the 808?

Originally Posted by CJ Weaver
You don't have to use any grease on the bearings so they spin freer. Now that it is indoor, I don't really use much grease since there isn't any dust on the indoor tracks.
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Old 11-28-2010, 06:49 PM
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Originally Posted by ganymede
Just the grease on the bearings? Anyone knows how many teeth on the XT8 pinion? 10T as with the 808?
Same as 808. Also you do not have to worry about the capture pin wear adding slop to the drivetrain since it is a traditional pinion.
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