2LikesXray T4 '13
05-28-2013, 12:34 PM
#3829
Barry, easy test would be to just try a spool in the front and see if you still have the issue.
I would not say a gear diff is better in any condition. It's different. In super high bite tracks, it can make the car easier to drive, but it won't necessarily mean faster laps. Best thing to do is try them back to back.
I don't think a gear diff gives more steering either. It may give a little more initial turn in, but it tends to wash out as power is applied. Making it act much like a 2WD car under power. In high bite, this makes the car easier and more consistent to drive, however in low to medium grip, it does not allow the car to accelerate fast enough out of the corners. In medium high to high grip is when you will mostly see the benefit of a gear diff.
Also, the spool seems to do better under power in high speed sweeping corners and larger tracks where the gear diff is better for tighter, smaller tracks and under some conditions in large tracks with hairpins.
The common denominator I can say has been grip though. The higher the grip, the better the gear diff works.
I would not say a gear diff is better in any condition. It's different. In super high bite tracks, it can make the car easier to drive, but it won't necessarily mean faster laps. Best thing to do is try them back to back.
I don't think a gear diff gives more steering either. It may give a little more initial turn in, but it tends to wash out as power is applied. Making it act much like a 2WD car under power. In high bite, this makes the car easier and more consistent to drive, however in low to medium grip, it does not allow the car to accelerate fast enough out of the corners. In medium high to high grip is when you will mostly see the benefit of a gear diff.
Also, the spool seems to do better under power in high speed sweeping corners and larger tracks where the gear diff is better for tighter, smaller tracks and under some conditions in large tracks with hairpins.
The common denominator I can say has been grip though. The higher the grip, the better the gear diff works.
05-28-2013, 01:11 PM
#3831
Thanks for the info guys. Same issue I have. I'm about .1 down of the fast guy at my track and I feel it's in the infield with the tight turns he gets me. My lap times are very good when I have enough front traction to traction roll but then there's that pesky occasional traction roll that negates that .1 second I gain w/ more steering. I'm hoping maybe a gear diff would give me that great turn in w/o the traction roll. This is the layout.
http://www.youtube.com/watch?v=ylgXpdoSx54
FYI, my track is 32'x61' and very high traction carpet.
Dave
http://www.youtube.com/watch?v=ylgXpdoSx54
FYI, my track is 32'x61' and very high traction carpet.
Dave
05-28-2013, 01:23 PM
#3832
Barry, easy test would be to just try a spool in the front and see if you still have the issue.
I would not say a gear diff is better in any condition. It's different. In super high bite tracks, it can make the car easier to drive, but it won't necessarily mean faster laps. Best thing to do is try them back to back.
I don't think a gear diff gives more steering either. It may give a little more initial turn in, but it tends to wash out as power is applied. Making it act much like a 2WD car under power. In high bite, this makes the car easier and more consistent to drive, however in low to medium grip, it does not allow the car to accelerate fast enough out of the corners. In medium high to high grip is when you will mostly see the benefit of a gear diff.
Also, the spool seems to do better under power in high speed sweeping corners and larger tracks where the gear diff is better for tighter, smaller tracks and under some conditions in large tracks with hairpins.
The common denominator I can say has been grip though. The higher the grip, the better the gear diff works.
I would not say a gear diff is better in any condition. It's different. In super high bite tracks, it can make the car easier to drive, but it won't necessarily mean faster laps. Best thing to do is try them back to back.
I don't think a gear diff gives more steering either. It may give a little more initial turn in, but it tends to wash out as power is applied. Making it act much like a 2WD car under power. In high bite, this makes the car easier and more consistent to drive, however in low to medium grip, it does not allow the car to accelerate fast enough out of the corners. In medium high to high grip is when you will mostly see the benefit of a gear diff.
Also, the spool seems to do better under power in high speed sweeping corners and larger tracks where the gear diff is better for tighter, smaller tracks and under some conditions in large tracks with hairpins.
The common denominator I can say has been grip though. The higher the grip, the better the gear diff works.
Thanks for the explanation... I had a different view / results...
05-28-2013, 03:13 PM
#3833
Thanks for the info guys. Same issue I have. I'm about .1 down of the fast guy at my track and I feel it's in the infield with the tight turns he gets me. My lap times are very good when I have enough front traction to traction roll but then there's that pesky occasional traction roll that negates that .1 second I gain w/ more steering. I'm hoping maybe a gear diff would give me that great turn in w/o the traction roll. This is the layout.
http://www.youtube.com/watch?v=ylgXpdoSx54
FYI, my track is 32'x61' and very high traction carpet.
Dave
http://www.youtube.com/watch?v=ylgXpdoSx54
FYI, my track is 32'x61' and very high traction carpet.
Dave
05-28-2013, 03:26 PM
#3834
I tried to widen it 1.5mm on each side just as a test and it still traction rolled. I run vta and I wonder if the tire itself was the problem. I went ahead and glued the outermost tread block and sidewall and the traction roll went away. Lost of a bit more steering than I would have liked so I probably should have just tried to glue the sidewall to start but I'm working on getting the steering back.
Dave
Dave
05-28-2013, 03:32 PM
#3835
Barry, easy test would be to just try a spool in the front and see if you still have the issue.
I would not say a gear diff is better in any condition. It's different. In super high bite tracks, it can make the car easier to drive, but it won't necessarily mean faster laps. Best thing to do is try them back to back.
I don't think a gear diff gives more steering either. It may give a little more initial turn in, but it tends to wash out as power is applied. Making it act much like a 2WD car under power. In high bite, this makes the car easier and more consistent to drive, however in low to medium grip, it does not allow the car to accelerate fast enough out of the corners. In medium high to high grip is when you will mostly see the benefit of a gear diff.
Also, the spool seems to do better under power in high speed sweeping corners and larger tracks where the gear diff is better for tighter, smaller tracks and under some conditions in large tracks with hairpins.
The common denominator I can say has been grip though. The higher the grip, the better the gear diff works.
I would not say a gear diff is better in any condition. It's different. In super high bite tracks, it can make the car easier to drive, but it won't necessarily mean faster laps. Best thing to do is try them back to back.
I don't think a gear diff gives more steering either. It may give a little more initial turn in, but it tends to wash out as power is applied. Making it act much like a 2WD car under power. In high bite, this makes the car easier and more consistent to drive, however in low to medium grip, it does not allow the car to accelerate fast enough out of the corners. In medium high to high grip is when you will mostly see the benefit of a gear diff.
Also, the spool seems to do better under power in high speed sweeping corners and larger tracks where the gear diff is better for tighter, smaller tracks and under some conditions in large tracks with hairpins.
The common denominator I can say has been grip though. The higher the grip, the better the gear diff works.
I've tried a gear diff with 2.5million on carpet and it just felt a bit lazy through the corners.
It felt a little better on a faster asphalt track with a lot of flowing corners, but that was running a 4.5
In stock it just seems to slow me down.
05-28-2013, 07:31 PM
#3836
I checked my sway bar to see if it was bent its perfectly flat. Measured everything per the manual and It still doesn't move either arm up when I try to movethem Separately .
05-28-2013, 10:15 PM
#3838
What exactly do the shock pistons do? Do they slow down damping by stiffening Or softening, due to more or less holes? Or does it just slow it down since more or less oil is passing through?
What I'm trying to say is, would a shock with 4 hole piston and 350 oil be softer than a 3 hole with 350?
What I'm trying to say is, would a shock with 4 hole piston and 350 oil be softer than a 3 hole with 350?
05-28-2013, 10:51 PM
#3839
What exactly do the shock pistons do? Do they slow down damping by stiffening Or softening, due to more or less holes? Or does it just slow it down since more or less oil is passing through?
What I'm trying to say is, would a shock with 4 hole piston and 350 oil be softer than a 3 hole with 350?
What I'm trying to say is, would a shock with 4 hole piston and 350 oil be softer than a 3 hole with 350?
The area of all the holes combined will give you how much fluid will be able to pass through the holes in the piston (negating the speed the piston is traveling). So lets say you have one piston that has 6 holes and another piston that has three holes. The area of all the holes combined is the same. They will both have the same damping when the piston moves slow. But when the piston is moving fast the 6 hole will give you more damping than the 3 hole since the holes are smaller.
05-29-2013, 06:09 AM
#3840
Assuming the holes are the same size yes the 4 hole would have less damping and be "softer". The smaller the hole the faster the shock will "pack up" because if the piston is moving fast and the hole is small the fluid will not be able to get through the hole at a sufficient rate.
The area of all the holes combined will give you how much fluid will be able to pass through the holes in the piston (negating the speed the piston is traveling). So lets say you have one piston that has 6 holes and another piston that has three holes. The area of all the holes combined is the same. They will both have the same damping when the piston moves slow. But when the piston is moving fast the 6 hole will give you more damping than the 3 hole since the holes are smaller.
The area of all the holes combined will give you how much fluid will be able to pass through the holes in the piston (negating the speed the piston is traveling). So lets say you have one piston that has 6 holes and another piston that has three holes. The area of all the holes combined is the same. They will both have the same damping when the piston moves slow. But when the piston is moving fast the 6 hole will give you more damping than the 3 hole since the holes are smaller.