246LikesXray XB4 thread
03-27-2013, 03:18 PM
#1951
I did not notice much difference though. I run rear +.75 as well. I think it will be more pronounced if you move the rear hinge pins outside which changes roll center. I do this on my nitro cars as well. My xb9e I run +0 hubs (I can control the throttle much better on electric thats why) but the nitro xb9 has +2 and its a lot more stable cornering than the electric without the extra width.
03-27-2013, 03:31 PM
#1952
Curious how many people are running chassis protectors? This is the first time I've had a car with an aluminum chassis. I ran a protector on it the first time out but its already become a hassle. I run on an outdoor clay track. Is it just not worth worrying about? Do the aluminum chassis hold up pretty well?
03-27-2013, 04:23 PM
#1953
Curious how many people are running chassis protectors? This is the first time I've had a car with an aluminum chassis. I ran a protector on it the first time out but its already become a hassle. I run on an outdoor clay track. Is it just not worth worrying about? Do the aluminum chassis hold up pretty well?
03-27-2013, 04:30 PM
#1954
+1. I've gone to +.75 front and -.75 rear. It really took the edginess out of the car.
03-27-2013, 05:23 PM
#1955
Went to 7/7 diffs last night and the buggy felt fantastic. Much more controlled and the rear was a bit more locked in on a loose wet track. Now I just need to figure out my rear shock setup. 30wt losi/6x1.2/1 dot springs bounces around a bit too much.
Tried a 17.5 blinky setup too. kimborough spur, AE pads at 69/30 was pretty good and drops right in with no issues, although temps are high.
Tried a 17.5 blinky setup too. kimborough spur, AE pads at 69/30 was pretty good and drops right in with no issues, although temps are high.
Interesting about the diff oils - I'll give it a shot as I have rear traction issues
03-27-2013, 06:26 PM
#1957
Tech Fanatic
iTrader: (23)
Tim,
My setup is pretty much stock. It is very quick, but "nervous" compared to the Associated B44.2 that I own as well. We run on a hard packed clay surface that has medium to high traction and is watered lightly a couple times throughout the day. It feels that the car is stiff, as it does bounce a bit, and the rear end is always kind of loose. My diff oils are 7 front, 5 rear. I have tried lighter shock oils, but still the 3 hole pistons. My latest oils were 32/27.5 F/R. I widened the rear end .75 per side.
I admit my setup skills are lacking. Got spoiled with the B44.2 which is easy to setup. I simply always wanted an xray kit, since they seem like super quality. It was an excellent build, but just trying to get that suspension dialed in. My next idea is to move the rear lower shock mount to the inner hole location.
I ran both cars last night. The xray was a handful for me. Both car run 6.5T motors, but the xray seemed much quicker, probably due to the low drag drivetrain. Just lacking keeping the tires firmly planted to the clay.
It's a keeper for sure. So any setup tips are welcome and would be gratefully received.
Mark
My setup is pretty much stock. It is very quick, but "nervous" compared to the Associated B44.2 that I own as well. We run on a hard packed clay surface that has medium to high traction and is watered lightly a couple times throughout the day. It feels that the car is stiff, as it does bounce a bit, and the rear end is always kind of loose. My diff oils are 7 front, 5 rear. I have tried lighter shock oils, but still the 3 hole pistons. My latest oils were 32/27.5 F/R. I widened the rear end .75 per side.
I admit my setup skills are lacking. Got spoiled with the B44.2 which is easy to setup. I simply always wanted an xray kit, since they seem like super quality. It was an excellent build, but just trying to get that suspension dialed in. My next idea is to move the rear lower shock mount to the inner hole location.
I ran both cars last night. The xray was a handful for me. Both car run 6.5T motors, but the xray seemed much quicker, probably due to the low drag drivetrain. Just lacking keeping the tires firmly planted to the clay.
It's a keeper for sure. So any setup tips are welcome and would be gratefully received.
Mark
A few question
what 3 hole pistons are you using and brand of shock oil and air temperature.
I run on a similar surface, you can find my setup on the xray site. Just do not view them in the pdf format. Some of the values change (ackermann, offset and caster block setting).
03-27-2013, 06:43 PM
#1959
Tech Fanatic
iTrader: (23)
Went to 7/7 diffs last night and the buggy felt fantastic. Much more controlled and the rear was a bit more locked in on a loose wet track. Now I just need to figure out my rear shock setup. 30wt losi/6x1.2/1 dot springs bounces around a bit too much.
Tried a 17.5 blinky setup too. kimborough spur, AE pads at 69/30 was pretty good and drops right in with no issues, although temps are high.
Tried a 17.5 blinky setup too. kimborough spur, AE pads at 69/30 was pretty good and drops right in with no issues, although temps are high.
Are you do the Australian Nats next week?
Do you have to drill out the kimborough spur to get them to fit?
03-27-2013, 07:23 PM
#1960
From my understanding, no. They are similar to the AE bleeder caps. Just a screw in the cap for bleeding out excess oil and getting the rebound you want. I dont have them and cant justify the cost right now. The stock ones don't leak on mine so no reason for me to change.
03-27-2013, 07:24 PM
#1961
lift your rear diff oil to 7.
A few question
what 3 hole pistons are you using and brand of shock oil and air temperature.
I run on a similar surface, you can find my setup on the xray site. Just do not view them in the pdf format. Some of the values change (ackermann, offset and caster block setting).
A few question
what 3 hole pistons are you using and brand of shock oil and air temperature.
I run on a similar surface, you can find my setup on the xray site. Just do not view them in the pdf format. Some of the values change (ackermann, offset and caster block setting).
I am using the 1.3 kit pistons, associated oil. Air temp probably low/mid 60's
I will try 7k diff oil
Thanks!
Mark
03-27-2013, 08:15 PM
#1962
Chris,
Moving the shocks to the inside arm location requires adding another shim limiter under the pistons, correct?
Moving the shocks to the inside arm location requires adding another shim limiter under the pistons, correct?
03-28-2013, 12:41 AM
#1964
Tech Initiate
Hello,
could you guys suggest engine for xb4, indoor carpet track with
class : modified
im going for ESC+eng : viper, novak, Team orion or SP depends on avaiablility.
could you guys suggest engine for xb4, indoor carpet track with
class : modified
im going for ESC+eng : viper, novak, Team orion or SP depends on avaiablility.
03-28-2013, 01:12 AM
#1965
Hello,
could you guys suggest engine for xb4, indoor carpet track with
class : modified
im going for ESC+eng : viper, novak, Team orion or SP depends on avaiablility.
Attachment 1049349
could you guys suggest engine for xb4, indoor carpet track with
class : modified
im going for ESC+eng : viper, novak, Team orion or SP depends on avaiablility.
Attachment 1049349
