Steeroids tie rod length
Thread Starter
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Steeroids tie rod length
I have asked before...but missed any answers..sorry...
need the tie rod length after alignment, pivot center to pivot center...each side....
thanks....
GENE
need the tie rod length after alignment, pivot center to pivot center...each side....
thanks....
GENE
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Re: Steeroids tie rod length (mrvette)
I'm having trouble following this one mrvette. The normal tie rod length is the distance from a line drawn through the outer ball joints to the ground and the inner ball joints to the ground. Where ever your tie rods pass through these imaginary lines is the correct length for them.
Now all you have to do is point them to the instantanous centers.
Also to eliminate bump steer the rack needs to be mounted slightly behind the center line of the outer tie rods and at the same time the spindle mounts must curve in towards the centerline.
Mounting the rack behind the center line causes toe out, curved spindle mounting points cause toe in. The 2 cancell each other.
Haven't a clue if I answered you question. Just rambling.
Now all you have to do is point them to the instantanous centers.
Also to eliminate bump steer the rack needs to be mounted slightly behind the center line of the outer tie rods and at the same time the spindle mounts must curve in towards the centerline.
Mounting the rack behind the center line causes toe out, curved spindle mounting points cause toe in. The 2 cancell each other.
Haven't a clue if I answered you question. Just rambling.
Thread Starter
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Re: Steeroids tie rod length (norvalwilhelm)
Well, the way I understood what Pete said once....it seemed to me having the inner pivots in the same plane as the lower arm axis, vertically and horizontally, is important....now mounted toward the rear of the car...well, OK, that seems right also....
now MY tie rods are way longer than stock....I was thinking since I have to raise the mounting in the center by 1.5 inches, that I may as well shorten the rods too, at the same time since I"m fabbing up a new block/steel anyway...
my tie rods are 20 and 22 inches long....about 4-5 inches longer than stock,...I was wondering what Steeroids did with their design, just as more input....
Jim Shea felt the longer rods would not hurt...but Pete seemed to think it was better inline with the lower arm axis....
GENE
now MY tie rods are way longer than stock....I was thinking since I have to raise the mounting in the center by 1.5 inches, that I may as well shorten the rods too, at the same time since I"m fabbing up a new block/steel anyway...
my tie rods are 20 and 22 inches long....about 4-5 inches longer than stock,...I was wondering what Steeroids did with their design, just as more input....
Jim Shea felt the longer rods would not hurt...but Pete seemed to think it was better inline with the lower arm axis....
GENE
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Re: Steeroids tie rod length (mrvette)
The tie rods must point to the instantanous center. The instantanous center is created by where the lower control arm points and intersects the upper control arm.
So it stands to reason that if you follow the lower control arm exactly you are pointing to the instantanous center.
The tie rod length in a stock setup is about 1 inch too short, or at least in my case so I would like to increase the sleeves by 1 inch each but that puts my center link too long. It is a visious circle if you get started.
Racks are designed for curved spindles to eliminate toe caused by turning the wheel.
Tie rod length controls pump steer.
We have 2 seperate problems here. Bump steer and steer caused by turning.
So it stands to reason that if you follow the lower control arm exactly you are pointing to the instantanous center.
The tie rod length in a stock setup is about 1 inch too short, or at least in my case so I would like to increase the sleeves by 1 inch each but that puts my center link too long. It is a visious circle if you get started.
Racks are designed for curved spindles to eliminate toe caused by turning the wheel.
Tie rod length controls pump steer.
We have 2 seperate problems here. Bump steer and steer caused by turning.
