Floorman279

iTrader: (11)

I understand that a level or an angle that slightly points down towards the rear is good for handling but not for traction, and vise versa for increasing the angle. I have vikings on all 4 corners. Not sure how dropped i have it now but it is lowered. With the angle finder i hit a few spots on my car and got that im sitting at +1.... The lcas are at -2, making a negative 3 angle. While i think this is good considering i care more about street driving than traction, i may wanna lower it more which would put it closer to zero or make it possitive whice isnt good.

So anybody have an angle range that works for street? Like maybe -1 to like -7? I know it is preference but looking for ideas. If i put the lca in a lower relocation hole as the car sits, the angle will be higher than i want for the steeet.

lt16spd1

Based on what I've researched, for handling/road course, you want the LCAs to be as flat as possible, 0*. If you can't get zero degrees, then make it as close to zero with any tilt being the end at the axle lower than at the frame/body.... if that makes sense. For drag racing, you want maximum anti-squat, which would be having the axle side as low as the LCA brackets allow.

Sam Strano

iTrader: (41)

Tail down it not the best for handling, it promotes roll oversteer. Big reason that I don't abide by the whole "you have to have LCA brackets" line.

Not sure where you read that. But I don't agree with it.

Floorman279

iTrader: (11)

So as close to 0 as possible?

JD_AMG

Zero is fine, but having the body side lower than the axle side is what is better for handling and make the car easier to drive hard (so you don't need rear LCA brackets). This is the opposite of what is ideal for launching however.
Also while on topic of handling, I would ditch those vikings ASAP and switch to a gas charged monotube shock, you will like it WAY better.

StoneColdLT1

iTrader: (8)

Here is a good read about instant center and how it puts power down, at least for drag racing. http://www.how-to-build-hotrods.com/tuning-4-link.html

I have access to CAD at work and would like to spend some time afterhours drawing and playing with a 4th gens instant center and LCA angles, but I don't have any measurements from my car right now.