Steering Rack Relocated w/ 2JZ Swap - Interesting!
10-07-13, 10:33 AM
#1
Steering Rack Relocated w/ 2JZ Swap - Interesting!
Hey guys,
So my FD is at it's third temporary "home" now at Speed For Sale in Alpharetta, Georgia getting my 2JZ swap finished up (hopefully) once and for all.
As they've been going through the car top-to-bottom, I wanted to share something very interesting with you guys.
Previously my steering rack had been lowered 2" in order to clear the oil pan of the 2JZ motor, where it was known that it would cause some serious bump-steer issues.
The guys at SFS actually ended up moving the steering rack forward and back-up to it's factory height off the ground. Except now the steering rack is actually completely straight across, instead of how it is normally mounted about 2" further back.
(in progress shot)
I saw the car last Friday (Oct. 4, 2013) and they were explaining to me that on a Supra (and many other cars I'm sure), the steering rack is like this...completely straight across.
They (SFS) claim that this relocation could potentially resolve MANY steering and suspension issues, bumpsteer among them.
They are having to shorten the shorter tie-rods and some custom swaybar brackets have been fabricated.
To compensate, they also extended the steering column by 2.5".
-
So I was thinking about this, and I decided to contact an old friend, Charlie @ Mazcare here in Georgia, and asked his opinion.
He really couldn't offer criticism one way or the other, based on a lack of documentation of anyone else having done this before.
Either way, when the car is running and drivable, it will certainly be interesting to have a full alignment and bumpsteer testing done, to see just how good or bad this change is.
I wanted to maybe get some feedback from you guys, but also I just thought it was an interesting topic for discussion.
So my FD is at it's third temporary "home" now at Speed For Sale in Alpharetta, Georgia getting my 2JZ swap finished up (hopefully) once and for all.
As they've been going through the car top-to-bottom, I wanted to share something very interesting with you guys.
Previously my steering rack had been lowered 2" in order to clear the oil pan of the 2JZ motor, where it was known that it would cause some serious bump-steer issues.
The guys at SFS actually ended up moving the steering rack forward and back-up to it's factory height off the ground. Except now the steering rack is actually completely straight across, instead of how it is normally mounted about 2" further back.
(in progress shot)
I saw the car last Friday (Oct. 4, 2013) and they were explaining to me that on a Supra (and many other cars I'm sure), the steering rack is like this...completely straight across.
They (SFS) claim that this relocation could potentially resolve MANY steering and suspension issues, bumpsteer among them.
They are having to shorten the shorter tie-rods and some custom swaybar brackets have been fabricated.
To compensate, they also extended the steering column by 2.5".
-
So I was thinking about this, and I decided to contact an old friend, Charlie @ Mazcare here in Georgia, and asked his opinion.
He really couldn't offer criticism one way or the other, based on a lack of documentation of anyone else having done this before.
Either way, when the car is running and drivable, it will certainly be interesting to have a full alignment and bumpsteer testing done, to see just how good or bad this change is.
I wanted to maybe get some feedback from you guys, but also I just thought it was an interesting topic for discussion.
10-08-13, 02:22 PM
#2
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It will affect the Ackerman, or relation of the angles of the front wheels while turning. Whether it will be a positive or negative change I couldn't say.
10-08-13, 02:30 PM
#3
If the tie rods are adjusted (shortened) accordingly, it seems like any/all steering issues will basically be neutralized. It's just the matter of everything else being mounted correctly.
The guys at SFS have an amazing attention to detail and have made multiple corrections to the sub-frame assembly as a whole when they noticed slight deviations of as small as 1/4".
I'm actually feeling pretty optimistic about the results.
The guys at SFS have an amazing attention to detail and have made multiple corrections to the sub-frame assembly as a whole when they noticed slight deviations of as small as 1/4".
I'm actually feeling pretty optimistic about the results.
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