What is required to PROPERLY slam your car?

[OM3GA]

My control arms as of now are sitting flat ie. ______________ they line up all the way across, In order to slam the car i am wondering what exactly you need to do in order to correct the suspension geometry once the arms are pointing up in the air. I have seen roll center adjusters but i would rather do something a little better than that, such as aftermarket LCA's like the battle version ones or Ikeya Formula as long as they would really help.

I have been looking at the GP sports knuckles but those are very pricey and thats just the front, what would you do in the back to help correct the suspension travel? Im not too worried about cost i just want to know what the best thing to do is, or if its not even worth lowering it past the point of having the LCA's Square.

[Slappy]

This have been discussed on my build thread...

It starts at "Ok, so im seriously considering these now.."

Page 24, 25

http://forums.driftinginsider....ge=24

[Gabes13]

I love you slappy

[simmode1]

Oh gawd... now I feel like one of the newbs that have been joining up so frequently lately, in wanting some one to spoonfeed me. Thats alot of info!

Oh well. Time to get to reading...

[OM3GA]

Basically this is what i am afraid of and what i am trying to avoid

The majority of enthusiasts want a low ride height to fill the ugly gap in their stock wheel wells. They also won't accept a ride that, for the most part, is a lot harsher than stock. Macho or not, most enthusiasts don't drive hard enough or well enough to realize that their cars actually handle worse than stock, mistaking reduced roll for better handling.

On MacPherson strut-equipped cars, the wheel will gain negative camber under roll as long as the lower control arm is positioned less than 90 degrees relative to the strut axis. Unfortunately, many enthusiasts with MacPherson strut-equipped cars lower their cars too much and make this angle greater than 90 degrees. Beyond 90 degrees, the suspension will gain positive camber instead of negative as it compresses, significantly compromising grip

My Lca's are right now at 90 degrees however its not the look i want at all, and i want a PROPER way to lower it more than it is now however keeping the Lca's at 90 degrees whether that is obtained from longer ball joints or different lower control arms, i just dont understand exactly how the LCA's such as the Battle Version ones work with the adjustable roll center... I only see it being adjusted in and out but how does that help when the arms are still pointing sky high..

[Slappy]

Ah, well at this point theres only 2 things to do.... Trial & Error, spend a s**t ton of money doing it - or - just slam your car like everyone else and say F it.


Modified by Slappy at 2:16 AM 2/3/2009

[OM3GA]

True but i just want that mystery answered so its always available for people thinking of slamming their cars.

[Slappy]

Well, half the mystery is well known to people like us, that slamming your car without the proper parts to correct the negatives is dumb. Screw the rest of them..lol

[OM3GA]

haha yeah thats true, what other arms am i going to need to correct the negatives?? What exactly becomes negative anything besides camber?

[Slappy]

When you slam a car, you ruin the entire suspension geometry that very very smart Nissan engineers worked hard to perfect.

My advice to you is, go to Amazon like i did and order some Chassis Engineering books - or - just buy some brand name suspension arms, do a full polyurethane bushing upgrade and don't slam your car.

heres a list of whats available for our cars

http://forums.driftinginsider....t=520