Xray XB2 2WD Buggy Thread
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#2596
Tech Master
iTrader: (4)
Hate to bring up a sore subject, but now that I've run my new DE several times I wanted to show the results on the rear suspension holder. I run primarily on a relatively rough hard packed dirt track, so I figured this would be a good durability test. I haven't broke a single part yet, but I can see why the design of the rear hanger is prone to break now. This is my first modern buggy, so I don't know how other brands are, but on the XB2 the rear suspension holder is lower than the chassis allowing it to receive some excessive abuse under normal driving conditions.
Here are some pictures to show my hanger is tweaked, and is most likely going to break soon. Notice how the right side is starting to bend up and buckle where the screw hole is. For the record, I did loc-tite these screws and check them after every run; they have never come loose. This is happening because the hanger is hitting the ground before the chassis.
Here are some pictures to show my hanger is tweaked, and is most likely going to break soon. Notice how the right side is starting to bend up and buckle where the screw hole is. For the record, I did loc-tite these screws and check them after every run; they have never come loose. This is happening because the hanger is hitting the ground before the chassis.
years back on my older touring cars due to not having eccentric hinge pins bushings, the carriers had be to purchased for various degrees of toe in/out, width, etc and have shims placed under for antisquat, etc. adjustments, see photo below.
this got me thinking on my DE, to put either 1 or 2mm washer/spacer between the rear carrier and chassis. this will raise the carrier and then use a eccentric spacer to move the hinge pin down and counter the rise of the carrier. going to give it a try since i'm already using a centered eccentric spacer in rear carrier. i see in your case you are using 1deg down, not sure if a .5deg down would make up for even a 1mm shim. you may have to adjust front carrier to counter this and end up with something close to your current setting
as for ski plates not sure on the hole alignment on the XB4 vs the XB2
http://www.ebay.com/itm/68011-TBR-DS...wAAOSwBLlVTllp
http://tboneracing.net/68011-tbr-dsr...xb4-4wd-buggy/
imo, the DE car was not tested in a US market, for the actual outdoor dirt tracks, huge jumps, hard landings, long jumps, and very technical, we run. the stock set-up car is actually good if your offroad outdoor dirt track is basicly a road course with non-technical single/double/triples which i believe is what they may have tested the DE on.
that was also evident by the lack of 17.5 thought in the car, and the work arounds racers are having to do just to use a 69T spur gear. i'm not making it up, i talked to RCA, 17.5 was not on their minds, it was a oh yeah after thought....they weren't thinking of the US and 17.5 is what they told me. which imo translates to lack of US racing in development. that being said, i don't expect them or any company to cover all trick parts for the US 17.5 market, but spur gears...that was major miss
all that being said, i still like the DE quality...., still working on it, for set-up
#2597
#2598
this got me thinking on my DE, to put either 1 or 2mm washer/spacer between the rear carrier and chassis. this will raise the carrier and then use a eccentric spacer to move the hinge pin down and counter the rise of the carrier. going to give it a try since i'm already using a centered eccentric spacer in rear carrier. i see in your case you are using 1deg down, not sure if a .5deg down would make up for even a 1mm shim. you may have to adjust front carrier to counter this and end up with something close to your current setting
as for ski plates not sure on the hole alignment on the XB4 vs the XB2
http://www.ebay.com/itm/68011-TBR-DS...wAAOSwBLlVTllp
http://tboneracing.net/68011-tbr-dsr...xb4-4wd-buggy/
as for ski plates not sure on the hole alignment on the XB4 vs the XB2
http://www.ebay.com/itm/68011-TBR-DS...wAAOSwBLlVTllp
http://tboneracing.net/68011-tbr-dsr...xb4-4wd-buggy/
Anyone know if the XB4 uses the same bolt pattern in the back? Would really like to try one of those skid plates if possible.
#2601
Tech Regular
#2602
#2603
Tech Rookie
Impressive Craftsmanships, Very Happy with my XB2 & XB4...
#2604
Nothing out yet. I think a better move would be two fold:
Make the hanger out of billet aluminium, and also reset the geometry to 3 degrees toe at centered offset. This would allow adjustment from 2 to 4, instead of making us start at 4.
Please email exotek at [email protected] and request it, as I have done.
Make the hanger out of billet aluminium, and also reset the geometry to 3 degrees toe at centered offset. This would allow adjustment from 2 to 4, instead of making us start at 4.
Please email exotek at [email protected] and request it, as I have done.
#2605
Nothing out yet. I think a better move would be two fold:
Make the hanger out of billet aluminium, and also reset the geometry to 3 degrees toe at centered offset. This would allow adjustment from 2 to 4, instead of making us start at 4.
Please email exotek at [email protected] and request it, as I have done.
Make the hanger out of billet aluminium, and also reset the geometry to 3 degrees toe at centered offset. This would allow adjustment from 2 to 4, instead of making us start at 4.
Please email exotek at [email protected] and request it, as I have done.
forged, which would make it stronger for sure.
#2606
That is most definitely cast, then machined.
#2607
#2608
#2609
#2610
I just can't tell from the pics - they aren't good enough on my end. My guess is an extrusion sliced and machined. That's how I would make the part but it really should be a bit beefier! When you lean the car over, it's obvious the lower outer area will drag pretty heavily on the ground.