Mod77L
01-07-2011, 02:42 PM
Our 2011 B-mod rules changed to require a 3-link or leafs. I'm going to revert my 4-bar to the 3-link.
The rules specify that the springs and shocks must be mounted in the same place, side-to-side. (ie., if the LR shock is in front, the RR shock must also be in front.)
Also, L & R link angles must be within 5* of each other, and visually parallel side-to-side.
Both sides must be mounted the same distance below the axle tube.
Both tracks I run are 1/3 mile. The Friday track is at 8* banking, and the Saturday track is about 16-18*.
At this point, I'm not worried about changing springs or shocks. I'll worry about that when I can evaluate the setup properly at the track.
Would you run coil-overs? Eliminators?
On swingarm, in front, or behind?
Its a bit more work and cost, but springs on top of the housing?
(Remember, L & R sides must have the same mounting locations)
I would have used the info provided in other threads, but most, if not all of them, put the shocks and springs in different places on each side.
Is one location better for the flatter track, and another better for the higher banks?
Should I be concerned with changing their locations between heavy/tacky and slick conditions?
Or, should I just pick a position, and spring/shock the car to run them there?
We can run a straight bar or j-bar, but it must be at least 19" long. I'm not sure about what I'm going to use because of possible interference problems depending on where the springs and shocks are mounted. If it matters, as a 4-bar, the car preferred a very low, left roll center on an average track (Features are usually about 1/2 way between tacky and slick).
The rules specify that the springs and shocks must be mounted in the same place, side-to-side. (ie., if the LR shock is in front, the RR shock must also be in front.)
Also, L & R link angles must be within 5* of each other, and visually parallel side-to-side.
Both sides must be mounted the same distance below the axle tube.
Both tracks I run are 1/3 mile. The Friday track is at 8* banking, and the Saturday track is about 16-18*.
At this point, I'm not worried about changing springs or shocks. I'll worry about that when I can evaluate the setup properly at the track.
Would you run coil-overs? Eliminators?
On swingarm, in front, or behind?
Its a bit more work and cost, but springs on top of the housing?
(Remember, L & R sides must have the same mounting locations)
I would have used the info provided in other threads, but most, if not all of them, put the shocks and springs in different places on each side.
Is one location better for the flatter track, and another better for the higher banks?
Should I be concerned with changing their locations between heavy/tacky and slick conditions?
Or, should I just pick a position, and spring/shock the car to run them there?
We can run a straight bar or j-bar, but it must be at least 19" long. I'm not sure about what I'm going to use because of possible interference problems depending on where the springs and shocks are mounted. If it matters, as a 4-bar, the car preferred a very low, left roll center on an average track (Features are usually about 1/2 way between tacky and slick).