Quote:
Originally Posted by RotARy15
I've been needing to re-toe the front end so this would be a good time to install an anti-dive kit, if they are worth anything.
I've installed the rear Traction Mod and been very happy with it. However, I am less convinced about anti-dive. I've had my eyes on the Jackson kit but don't really understand what it will actually do for me.
There is very little in the way of reviews online. I've found a single youtube video where there was no discernable change to physical dive/compression under braking, but the review mentioned the front end was "more gooder on corner entry, fr fr no cap" or something to that effect. I'll take anything that makes the car pointier but if I don't fully understand it, then I'm worried about making some other aspect worse.
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Traction mod: Recommend checking this thread out soon.
https://www.ft86club.com/forums/showthread.php?t=155702
I'll give it a shot from a theoretical perspective...
Easy description of antidive is to imagine your suspension is on a very long longitudinal swing arm. The distance between the pivot point of that swing arm and axis of braking force (front contact patch to center of gravity) determines how much torque about the pivot point the spring has to counteract. More torque, more dive.
By changing the angle of the front LCA, you change where that swing arm pivot point is. The Cusco kit moves the front attachment point lower, moving the longitudinal swing arm pivot higher, increasing the "antidive geometry". This means the nose of the car will dive less under braking.
Why is this good?
-If you have aero this can be helpful to keep the wings and things at the appropriate angles.
-It lets you run lower ride heights with softer springs before you start bottoming out and hitting bump stops.
-Less camber gain under braking, which is good for straight line braking.
-Generally smaller body motions result in more consistent grip profiles for the tires, for better or for worse.
Great, what's the catch?
-The suspension with more antidive/antilift is not as compliant with mixed inputs, meaning any bumps or hills during trail braking are going to result in a greater understeer tendency.
-The driver has a smaller window of sensory input regarding how much braking is being applied.
-Less camber gain under braking, which is generally worse for mixed inputs.