Xray XB4 thread
Will the 16 body fit the 15?
Tech Champion
iTrader: (259)
Tech Master
iTrader: (216)
Has anyone had a problem with the 14' version car eating up the rear pinion bevel gear? I have went thru 2 lately. Thanks
Tech Fanatic
iTrader: (15)
ECS driveshafts - anyone using these on clay? Any point in upgrading the rear or is this primarily for chatter on the front end turning on power? Have an xb2 as well so was going to try out some rears, as they are interchangeable, and who knows when I'll bend a rear drive shaft and may be in need. is there is a point, or is my money is better spent on just the xb4 fronts. Thx all
as far as the rears go, they supposedly help increase rear traction but since the rear wheels don't turn and only are affected by camber changes from the suspension moving, i can't imagine that being all that significant. i would personally say run just the xb4 fronts and if you bend the rears on either car, maybe try the ecs out back.
also keep in mind that the standard drive shafts are likely to be less expensive and easier to maintain and/or replace. plus they might be a little more durable and last longer being that the design is more simple with less moving parts and wear.
just my .02
Thx! Changed out medium chassis and braces for medium bite clay track. Moved rear shock to inner hole on rear tower like my xb2. Helped tremendously. Still not as much rear grip as I'd like. Anyone adding weight to the rear without buying brass hangers? How much and where? I imagine with the battery to one side one would weight the left, but I don't have scales for the corners?... He all
i got them for just the xb4 fronts. they definitely help with smoother and sharper cornering, especially on carpet, but also helpful on high bite clay and increased front traction.
as far as the rears go, they supposedly help increase rear traction but since the rear wheels don't turn and only are affected by camber changes from the suspension moving, i can't imagine that being all that significant. i would personally say run just the xb4 fronts and if you bend the rears on either car, maybe try the ecs out back.
also keep in mind that the standard drive shafts are likely to be less expensive and easier to maintain and/or replace. plus they might be a little more durable and last longer being that the design is more simple with less moving parts and wear.
just my .02
as far as the rears go, they supposedly help increase rear traction but since the rear wheels don't turn and only are affected by camber changes from the suspension moving, i can't imagine that being all that significant. i would personally say run just the xb4 fronts and if you bend the rears on either car, maybe try the ecs out back.
also keep in mind that the standard drive shafts are likely to be less expensive and easier to maintain and/or replace. plus they might be a little more durable and last longer being that the design is more simple with less moving parts and wear.
just my .02
Tech Addict
iTrader: (11)
I have 15 grams in the rear and helped a ton running on clay.
Again I am running the avid 2+2 pistons and the avid springs, purple front and white rear.
Again I am running the avid 2+2 pistons and the avid springs, purple front and white rear.
Edit: best advice ever. Buggy came alive. 40/35 20 percent rebound. AE blue front. 1 dot rear. Going to try a little softer on spring.
You're not chassis slapping with a 1.89 soft rear spring?
You're not chassis slapping with a 1.89 soft rear spring?
Last edited by JAE; 08-13-2016 at 08:22 PM.
Tech Regular
Thx! Changed out medium chassis and braces for medium bite clay track. Moved rear shock to inner hole on rear tower like my xb2. Helped tremendously. Still not as much rear grip as I'd like. Anyone adding weight to the rear without buying brass hangers? How much and where? I imagine with the battery to one side one would weight the left, but I don't have scales for the corners?... He all
Tech Addict
iTrader: (11)
I am glad I was able to help and you like it. I am personally running the Avid white rear springs which is 1.94lb and It will slap if I miss down side jump alittle bit on the real big ones but if i land it right or even alititle of I find thats the best spring for me all around the track. I am also running 42.5wt and 37.5wt which is pretty close to what you are running now.
Tech Addict
iTrader: (11)
You can add alittle weight or also go down alittle on your rear diff oil. Also I went with a softer rear sway bar which will help give you alittle more rear traction. Also maybe increasing rear toe (more toe in)... Those are some things i have tried and have worked.
Also not sure if you got the medium rear braces or sides but there really do work as I really didnt think i would be able to notice a change but I did. Kinda feels like I got more traction by going to the medium from the stock hard ones.
Tech Regular
You can add alittle weight or also go down alittle on your rear diff oil. Also I went with a softer rear sway bar which will help give you alittle more rear traction. Also maybe increasing rear toe (more toe in)... Those are some things i have tried and have worked.
Also not sure if you got the medium rear braces or sides but there really do work as I really didnt think i would be able to notice a change but I did. Kinda feels like I got more traction by going to the medium from the stock hard ones.
Also not sure if you got the medium rear braces or sides but there really do work as I really didnt think i would be able to notice a change but I did. Kinda feels like I got more traction by going to the medium from the stock hard ones.
Tech Addict
iTrader: (11)
1k or 10k in the rear, I have never ran anything under 3k in the rear on a normal bases. I think I tried 2k once but never again. I would love to know what the rest of your oils are if your running 1k in the rear. I am normally at 7k,200k,5k or 5k,300k,3k with sometime going up to 500k in the center diff.
Tech Fanatic
iTrader: (15)
i run 10k 500k 10k
think of going 8k in the rear
also i run the steel diff gears
on med-high bite clay (primes or electrons)
think of going 8k in the rear
also i run the steel diff gears
on med-high bite clay (primes or electrons)