Xray T4 '13
#2776
how much fluid are you putting in the diff? I thought I had a leaky diff when I built my first few, only eyeballing the amount of fluid I put in. Once I put the empty diff on a scale and added the fluid by weight like the directions suggest haven't had a leak since. Leads me to believe it was more of an overflow problem than a leaking problem.
Hope that helps!!
Hope that helps!!
Anyways, going to try another rebuild. Leaving the large O-ring out though. Hopefully 3rd times a charm.
#2777
Tech Regular
#2779
T4 running 13.5 boosted
Tried a resonable setup but it seemed to be a bit too 'stuck' through corners, almost like i had drag brake on.
Decided to try 1 hole rear uprights (as advised by several team drivers) which made it a pig to hold on to during the race.
You can see my car squirming and sliding through corners.
Back to 2 hole methinks;
Tried a resonable setup but it seemed to be a bit too 'stuck' through corners, almost like i had drag brake on.
Decided to try 1 hole rear uprights (as advised by several team drivers) which made it a pig to hold on to during the race.
You can see my car squirming and sliding through corners.
Back to 2 hole methinks;
+ YouTube Video | |
#2780
Tech Elite
iTrader: (13)
Skiddins, how much rear toe are you using?
My experience with the T4 is at our local asphalt track, however, the track is extremely high bite when they spray it with VHT. One night, they were experimenting with more track additive after the races. Before the extra additive I was running 11.3 and 11.2 second laps, post the additive the lap times became 11.7's and 11.8's. As I had just gotten my car I had pretty much 0 option parts to find the speed. Luckily, the car has been very responsive to geometry changes.
The first thing I did was remove rear toe. I went from having 1.0mm shims in between the rear suspension blocks and the bulkhead to 0.5mm shims. The car got better. Next, I reduced Droop by turning each screw about 1/8 of a turn clockwise. I also shortened the wheelbase by 1mm in the rear. Alll the adjustments made the car less stuck and lap times started dropping. Next I went to the second hole from the outside on the front shock tower to increase mid corner rotation and lastly I lowered the inside camber links to only 1mm underneath all 4. I am also running the shortest links all around. After all the changes were made, I was able to get my lap times down to 11.0.
While I know the surfaces are different, the feeling of a car being too stuck is the same from my experience on both carpet and asphalt- all the adjustments I used, should work on both surfaces to "free up the car" and get more corner speed.
I have followed the thread for a while and noticed some people have said that the car lacks corner speed in certain circumstances, however with my limited time with the car, my favorite thing about it has been the corner speed and acceleration characteristics. What would be interesting to find out is what adjustments people have been trying on their cars to get them to reduce traction in high grip conditions.
My experience with the T4 is at our local asphalt track, however, the track is extremely high bite when they spray it with VHT. One night, they were experimenting with more track additive after the races. Before the extra additive I was running 11.3 and 11.2 second laps, post the additive the lap times became 11.7's and 11.8's. As I had just gotten my car I had pretty much 0 option parts to find the speed. Luckily, the car has been very responsive to geometry changes.
The first thing I did was remove rear toe. I went from having 1.0mm shims in between the rear suspension blocks and the bulkhead to 0.5mm shims. The car got better. Next, I reduced Droop by turning each screw about 1/8 of a turn clockwise. I also shortened the wheelbase by 1mm in the rear. Alll the adjustments made the car less stuck and lap times started dropping. Next I went to the second hole from the outside on the front shock tower to increase mid corner rotation and lastly I lowered the inside camber links to only 1mm underneath all 4. I am also running the shortest links all around. After all the changes were made, I was able to get my lap times down to 11.0.
While I know the surfaces are different, the feeling of a car being too stuck is the same from my experience on both carpet and asphalt- all the adjustments I used, should work on both surfaces to "free up the car" and get more corner speed.
I have followed the thread for a while and noticed some people have said that the car lacks corner speed in certain circumstances, however with my limited time with the car, my favorite thing about it has been the corner speed and acceleration characteristics. What would be interesting to find out is what adjustments people have been trying on their cars to get them to reduce traction in high grip conditions.
#2787
Tech Regular
iTrader: (8)
re asphalt
just got a second t4 running with a different motor combo. 21.5 blinky.
complete kit asphalt setup at the moment.
med grip painted asphalt no compounds or spray
car is as quick as first (also kit setup) but has a low speed on power loose and a high speed sweeper push. everything i read these need the opposite to correct. swapped to a mazda from ltcr and push was worse.
complete kit asphalt setup at the moment.
med grip painted asphalt no compounds or spray
car is as quick as first (also kit setup) but has a low speed on power loose and a high speed sweeper push. everything i read these need the opposite to correct. swapped to a mazda from ltcr and push was worse.
#2788
Tech Fanatic
iTrader: (7)
just got a second t4 running with a different motor combo. 21.5 blinky.
complete kit asphalt setup at the moment.
med grip painted asphalt no compounds or spray
car is as quick as first (also kit setup) but has a low speed on power loose and a high speed sweeper push. everything i read these need the opposite to correct. swapped to a mazda from ltcr and push was worse.
complete kit asphalt setup at the moment.
med grip painted asphalt no compounds or spray
car is as quick as first (also kit setup) but has a low speed on power loose and a high speed sweeper push. everything i read these need the opposite to correct. swapped to a mazda from ltcr and push was worse.
Maybe check your weight distribution. Might be too heavy in rear. Also kinda sounds like a tweak, lefty loosey righty tighty.
#2789
Tech Regular
iTrader: (8)
will go over both cars tonight might be a slight difference in droop or something.