Post by powercar82 on Sept 16, 2013 12:14:44 GMT -6
I am switching from a 3link with the LR clamped in front and the RR on top of the housing to a swingarm 3link on both sides (just to try as it is the hot setup around here). I have heard it is a little more forgiving for track conditions than the clamped setup. Right now I am decent on a tacky track, but have really been fighting getting the car to hookup when the track gets rubbered up or dryslick).
I currently run a 125 spring in the LR and a 150 RR spring. When choosing spring rates for the swingarm, should I start with the calculation of the motion ratio (about 225 LR and 250 RR)? What other changes do people think should be made? I currently run about 80 lbs of bite, so maybe I should double that (which may require me to add spring rate)?
Any other suggestions are welcome!
Also, here is a link to a video I made of my suspension during hotlaps and the heat race:
I had a push on entry.
You’ll notice my left rear bar (set at 17 degrees) is in the top hole. My hike is limited when it hits the underslung bar. I definitely need more fwd bite, so I have my toplink set at 19 degrees down to compensate. I feel if I redo my frame mount to get more angle (25 degrees maybe) in the LR, it will give me more hike (the underslung slopes down significantly as it goes further fwd).
I’m thinking this should allow me to get more FWD bite, but with the extra rear steer, the car should rotate better in the corner. Let me know what you think.
Any other observations from the video that anyone might have?
Maybe I should just start by changing the LR bar angle before going swingarm?
I currently run a 125 spring in the LR and a 150 RR spring. When choosing spring rates for the swingarm, should I start with the calculation of the motion ratio (about 225 LR and 250 RR)? What other changes do people think should be made? I currently run about 80 lbs of bite, so maybe I should double that (which may require me to add spring rate)?
Any other suggestions are welcome!
Also, here is a link to a video I made of my suspension during hotlaps and the heat race:
I had a push on entry.
You’ll notice my left rear bar (set at 17 degrees) is in the top hole. My hike is limited when it hits the underslung bar. I definitely need more fwd bite, so I have my toplink set at 19 degrees down to compensate. I feel if I redo my frame mount to get more angle (25 degrees maybe) in the LR, it will give me more hike (the underslung slopes down significantly as it goes further fwd).
I’m thinking this should allow me to get more FWD bite, but with the extra rear steer, the car should rotate better in the corner. Let me know what you think.
Any other observations from the video that anyone might have?
Maybe I should just start by changing the LR bar angle before going swingarm?
You might want to think about raising your RF ride height just a little, we generally get about 4" of travel on our RF and get a little more when we run the soft stuff on the super slick. I am a big believer in using up as much travel as you can get out of the RF without damaging your shocks. We can't run spring rubbers though. If we could I would probably run a 450 or 400 with a spring rubber for my starting the night setup.