Xray XB4 thread
#6646
Tech Elite
iTrader: (33)
Well while everyone on here was complaining about the .5 mm offset.
myself and another Xray owner were racing tonight having a blast with our '15 cars. He is a sponsored driver and won the Amain "40 cars in the class"with his "inferior" quality car ahead of a the zx6,B44.3, and TLR offerings. His solution was to install 14 holders and it worked great. I just used a .5 pill on one side and my car felt great. I qualified 17 overall but had a rough C main being taken out in the first turn. Still loved the car. Setup seems great for our clay mixed track.
myself and another Xray owner were racing tonight having a blast with our '15 cars. He is a sponsored driver and won the Amain "40 cars in the class"with his "inferior" quality car ahead of a the zx6,B44.3, and TLR offerings. His solution was to install 14 holders and it worked great. I just used a .5 pill on one side and my car felt great. I qualified 17 overall but had a rough C main being taken out in the first turn. Still loved the car. Setup seems great for our clay mixed track.
I have figured out a way to fix the offset and get the rear toe back to 3 deg per side. It's pretty easy and doesn't take long. If anyone wants to know pm me and I'll share it. I'm done trying to help out people that don't appreciate it. (Qwkrn U)
Last edited by rcgod; 01-25-2015 at 01:05 AM.
#6648
Tech Master
iTrader: (32)
Ran mine Saturday on a pretty loose outdoor clay track in shorty configuration...
Car was very good out of the box with centre diff. Made only a couple of minor changes. Car is completely different than the previous model. Very agile, jumps better and changes direction in a blink of an eye.
Didn't notice the rear end playing up even tough my toe block is offset also.
Anyone else driven theirs yet or tried making changes to the rear to see if it had an effect?
Car was very good out of the box with centre diff. Made only a couple of minor changes. Car is completely different than the previous model. Very agile, jumps better and changes direction in a blink of an eye.
Didn't notice the rear end playing up even tough my toe block is offset also.
Anyone else driven theirs yet or tried making changes to the rear to see if it had an effect?
#6649
Tech Addict
iTrader: (12)
Well while everyone on here was complaining about the .5 mm offset.
myself and another Xray owner were racing tonight having a blast with our '15 cars. He is a sponsored driver and won the Amain "40 cars in the class"with his "inferior" quality car ahead of a the zx6,B44.3, and TLR offerings. His solution was to install 14 holders and it worked great. I just used a .5 pill on one side and my car felt great. I qualified 17 overall but had a rough C main being taken out in the first turn. Still loved the car. Setup seems great for our clay mixed track.
myself and another Xray owner were racing tonight having a blast with our '15 cars. He is a sponsored driver and won the Amain "40 cars in the class"with his "inferior" quality car ahead of a the zx6,B44.3, and TLR offerings. His solution was to install 14 holders and it worked great. I just used a .5 pill on one side and my car felt great. I qualified 17 overall but had a rough C main being taken out in the first turn. Still loved the car. Setup seems great for our clay mixed track.
Because of the complaining, you are now aware that of the 54 available positions of adjustment in the rear end not one of them gives you a symmetrical rear end, there are however about 5-6 options that will actually keep the car symmetrical when you mis-match inserts, your welcome for that.
It also blows my mind that some sponsored drivers are just picking up on this via this thread while a guy like me, this being my first Xray, notices it the first week......And FYI, tell your sponsored buddy to check his car, it is likely still crooked with the '14 brace on there, maybe you didn't read enough of the complaining, but the '14 brace has the offset also.
Now, if you'll excuse me, I'm glad you raced last night, but I race on Sunday, so I have to get my stuff ready. You act as though we all quit the hobby because of this or something.........
#6651
Tech Elite
iTrader: (33)
I'm working on a step by step guide with pics I'll post here later today. Calipers will be required to get it centered accurately. Even a cheap pair is better than nothing (eyeballs). The wife is dragging me to church, so I'll post it up after. I've also contacted a friend that makes aftermarket rc car parts, so hopefully there will be a better solution soon. I'd like to see his toe block be available for less than $30 but that's his decision.
#6653
Thank you RCGOD, much appreciated my friend
#6654
Tech Elite
iTrader: (33)
Guys I've added a couple pics to my Dropbox of my digital scales with saddles and shorty setup. Seeing the lighter weight at each wheel and different weight distribution with shorty, and after doing some testing at the track, I made some spring changes. I was running 3 dot front and 1 dot rear with saddles and the car was great. It was not as good with shorty and same springs. Felt too stiff and skatey. I went to red ae front and black ae rear, no other changes and the car was really good. I dropped the spring rates in relation to the percentage of lighter corner weights. Please give some feedback if you try it.
https://www.dropbox.com/sh/m5h99p73q...MaJXbMJTa?dl=0
https://www.dropbox.com/sh/m5h99p73q...MaJXbMJTa?dl=0
Last edited by rcgod; 01-25-2015 at 10:37 AM.
#6655
Tech Elite
iTrader: (133)
Not sure What track conditions you are running on but
For our clay mix medium to high bite track
This is the setup we have been running for shocks/springs Front 1.7 2 hole Pistons Kyosho gold springs 35wt losi oil
Center diff with 100-300k fluid
Rear 1.6 2 hole 27.5wt losi Kyosho white rear or pink on the shorty car
For our clay mix medium to high bite track
This is the setup we have been running for shocks/springs Front 1.7 2 hole Pistons Kyosho gold springs 35wt losi oil
Center diff with 100-300k fluid
Rear 1.6 2 hole 27.5wt losi Kyosho white rear or pink on the shorty car
Last edited by Qwkrn U; 01-25-2015 at 03:39 PM.
#6656
The alu suspension blocks have asymmetrical holes made on purpose to offset the small differences in the composite bulkhead after they cool down after moulding. As such, the suspension blocks are all correct and after assembly everything is correct.
When composite parts are assembled with others parts using screws, they tend to bend in the direction of the screws. XRAY's legendary attention to the detail in this case ensures that all composite parts are measured after assembly and the tolerances of the moulds are adjusted to offset this kind of effect to ensure the geometry is correct.
When composite parts are assembled with others parts using screws, they tend to bend in the direction of the screws. XRAY's legendary attention to the detail in this case ensures that all composite parts are measured after assembly and the tolerances of the moulds are adjusted to offset this kind of effect to ensure the geometry is correct.
#6658
Tech Elite
iTrader: (33)
Ok guys here is the info on how to fix the rear toe:
1. Measure your rear toe block to confirm it's off and how much. Mine is off .020"
2. Take 2 inserts and put them on the ends of the hinge pin for easier handling. You need to take off half of the measured number that you got from the toe block from one side of the inserts. Mine was off .020" so I took .010" from one side of each insert. My inserts measured .232" across where they key into the toe block, so I was shooting for .222"
3. Take a piece of sandpaper wrapped around something flat, use a file, or an emery board works also. I used an emery board. It's what women use to file their nails. Shhh don't tell the girlfriend/wife. Slowly sand off the amount you need to from one side of the inserts checking often with the calipers. Try to keep the side as flat as you can. You'll probably notice material comes off easily across the insert, but not in the corner where the insert lip is. No big deal. Just use and exacto knife or razor blade and clean up that area to make it match the rest of the insert.
4. Once you get the insert sanded evenly to the width you want, blend the radiused corners on the sides where you just sanded slightly. If you don't the radius will be too small and the insert won't fit properly in the mount. Just a couple light swipes with the sandpaper will do.
5. Now you have to either build up the other side of the insert .010" or find a shim the correct thickness. Maybe a piece of paper doubled up or thin piece of plastic. I used a drop of thick CA glue. I let the glue dry, measured the thickness of the insert, and sanded the CA glue down until the inserts measured .232" across. The glue is a lot softer than the insert so go lightly it doesn't take much to get it to the right width.
6. Put one insert in the right side of the hanger with the offset in, and the other insert in the left side with the offset out. Mine came out even to the mounting holes within .002"
If I had some CA kicker to make the glue dry the whole process would have taken me 15 to 30 minutes. This will get the toe back to 3.0 degrees and even. If you want to run 3.5 or 2.5 degrees skip this whole process and use a .5 insert on one side and a 0 insert on the other.
Here are some pics:
https://www.dropbox.com/sh/hktqwtker...fKkBQ2mga?dl=0
1. Measure your rear toe block to confirm it's off and how much. Mine is off .020"
2. Take 2 inserts and put them on the ends of the hinge pin for easier handling. You need to take off half of the measured number that you got from the toe block from one side of the inserts. Mine was off .020" so I took .010" from one side of each insert. My inserts measured .232" across where they key into the toe block, so I was shooting for .222"
3. Take a piece of sandpaper wrapped around something flat, use a file, or an emery board works also. I used an emery board. It's what women use to file their nails. Shhh don't tell the girlfriend/wife. Slowly sand off the amount you need to from one side of the inserts checking often with the calipers. Try to keep the side as flat as you can. You'll probably notice material comes off easily across the insert, but not in the corner where the insert lip is. No big deal. Just use and exacto knife or razor blade and clean up that area to make it match the rest of the insert.
4. Once you get the insert sanded evenly to the width you want, blend the radiused corners on the sides where you just sanded slightly. If you don't the radius will be too small and the insert won't fit properly in the mount. Just a couple light swipes with the sandpaper will do.
5. Now you have to either build up the other side of the insert .010" or find a shim the correct thickness. Maybe a piece of paper doubled up or thin piece of plastic. I used a drop of thick CA glue. I let the glue dry, measured the thickness of the insert, and sanded the CA glue down until the inserts measured .232" across. The glue is a lot softer than the insert so go lightly it doesn't take much to get it to the right width.
6. Put one insert in the right side of the hanger with the offset in, and the other insert in the left side with the offset out. Mine came out even to the mounting holes within .002"
If I had some CA kicker to make the glue dry the whole process would have taken me 15 to 30 minutes. This will get the toe back to 3.0 degrees and even. If you want to run 3.5 or 2.5 degrees skip this whole process and use a .5 insert on one side and a 0 insert on the other.
Here are some pics:
https://www.dropbox.com/sh/hktqwtker...fKkBQ2mga?dl=0
#6659
Tech Champion
iTrader: (259)
Back to the XB4, had an opportunity to run my 2015 with a center diff and I was extremely pleased on the handling improvements over the 2014 model. Car was balanced, didn't want to swap ends in tight turns, and jumped great.
#6660
Tech Lord
iTrader: (13)
Not to kick a dead horse here but I really find it unusual that the block is off that much. Xray has always been very accurate. It sounds like the mold was made wrong or the block. Holes don't move during cooling, they shrink. It would be so much easier for them to just make accommodating hinge pin blocks and call it a day. Modifying the mold would be pretty pricey. Just my .02.
On a side note, you guys are on point.lol Picking up on little details like that is pretty impressive.
On a side note, you guys are on point.lol Picking up on little details like that is pretty impressive.