F body control arm angle
F body control arm angle Why does everyone say run your control arms in the lowest hole with relocation brackets? What does that do exactly? I have 3 holes on mine and for 3 years I ran mine in the middle hole and always had 1.30-1.35 60 on 325's MT and always hooking up. Would I have had better 60's if they were in the lower holes? This was when the car was cam only with a lot of nitrous, is it important or more forgiving in a lower hp car or why did my car work if it wasnt right? Is there a certain angle to shoot for when setting up the lower control arms? I am just trying to understand the rear suspension better and what does what and why.
Joined: Nov 2001
Posts: 8,484
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From: Cecil County Raceway!!!
a downward angle of about 2deg is a good starting point...it determines your rear suspension's instant center location...
if the car is lowered any you need to lower the LCA on the rear accordingly...I had to add more holes since mine is lowered quite a bit...
if the car is lowered any you need to lower the LCA on the rear accordingly...I had to add more holes since mine is lowered quite a bit...
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your tq arm, which is essentially the upper arms of a 4 link setup. The angle of these 3 arms, and how these angles interact with each other and the car is what determines the way a car will launch. The shock and spring combination controls how fast the axle moves based on the energy provided to them by the aformentioned angles. read this its quite helpful
http://www.baselinesuspensions.com/i...A_Drag_Car.htm
http://www.baselinesuspensions.com/i...A_Drag_Car.htm
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Staging Lane
Joined: Jan 2010
Posts: 89
Likes: 0
From: Woodlawn IL
In the end you just have to try something and see if it helps or hurts your combo then try something else to see if it helps or hurts and again and again it can end up being a big never ending circle of testing stuff if you want to. These cars are like Harleys I dont think I have ever seen two that were exactly the same except when they were brand new on the dealers lot.
And even if they are exactly the same they can still want something different.
11 Second Club
Joined: Aug 2005
Posts: 804
Likes: 0
From: Tampa, FL
The more angle of the lower bar the shorter/higher your IC becomes and your AS value increases. But too much angle can be a bad thing. The shorter/higher the IC/AS is, the harder the tires will be planted into the pavement but the quicker the chassis settle and then it will unload on the tires. The lower bar pushes the car forward while the upper bar pulls the car upward. Its a balancing act that depends on tires, prep, hp, weight, etc.
-Mark
-Mark
