TA22 + rack and pinion

[MWP]

Didn't we come to the conclusion earlier that they're not the same?

Did we?
My memory sucks

[YelloRolla]

You guys with TA22 Xmembers can just use your stock xmember thats what the guys over here are using. Also you Corolla guys. What we do is get all AE86 Manual Rack parts: Xmember, all brackets, steering colum, mounting plate on firewall, steering knuckles ans rack of course. It's done just like Big Flea did his Corolla. I'll look for the link GREAT info on his site on the swap.

Cheers, Johnny

Link is already added earlier on in this thread. (I am making the assumption that you are talking about the TE27 with the 1UZ in it).

[71RA20]

Link is already added earlier on in this thread. (I am making the assumption that you are talking about the TE27 with the 1UZ in it).

I must have missed the previous post. Sorry.


Johnny

[71RA20]

This may help with difference in length. I have yet to use. I have the Non power steering knuckles and T3 Tierods.

http://www.battleversion.com/ae86_steering_spacers.htm

["Z" UTE]

The plan, when I get that car in the shed, (bit full at the moment) is to use the standard TA22 crossmember, and mount the rack to that. I am considering a fore and aft repositional locating system. Got heaps of old rod and crankcase bearing halves, should do the trick nicely. That way there should be some room for fine tuning the setup.

vanman, yep mostly highway K's. Had to replace the CV joints twice. But the steering bits were in reasoable shape, when it was towed away to the scrap metal yard. It got torched, otherwise I would still be driving the little fester. Mind you I have not had a roadworthy done on the car for the last 12 years. What I consider fine may well have failed an RTA check.


cheers Chuck.

[merc-blue]

I just want to confirm what im looking for in a rack,
Rack end-Rack end same length as distnace between tirerod ends (going into the realy rod?

and the rackend-rackend that i want for a ta22 is about 530mm? that was a really quick rough measurement?
Could someone who has followed this and understand steering geometry better than I do a rehash on exactly what were looking for, or have people decided that a AE82 rack is so damn close it doesnt matter?

[TurboRA28]

Hey Merc,

What you are required to measure to find out what you are looking for is -

1. The distance between the centre of the control arm pivot points on the cross member.

2. The amount of offset on the steering knuckles between the centre of the hole for the ball joint and the center of the hole for the outer tie rod end.

Once you have those measurements, lets assume 530mm for point 1 and 15mm each side for point 2, so 30mm in total.

That means your rack inner tie rods centre pivot needs to be 500mm apart.

I hope that makes sense in a easy sorta way?

The rest of the stuffing around is getting the rack the right height and forward/backward position. But the above should help with the width of the rack.

Cheers
Joel

[TurboRA28]

Also if you need a re-hash on getting the height and for/aft positioning let me know.

[soaringmik]

Just subscribing,. Would like to hear the outcome of said conversion attempt


Cheers

[o_man_ra23]

When I get into my new house and put the RA23 on stilts im going to measure everything up and draw it into autocad. Ill make a PDF version of that to post up here, showing what all the measurements are, and component locations required. Hopefully with an accurately measured graphic, people should be able to see what they need to consider for a TA22. Also it should show just how much bumpsteer is factory built into an RA23

Once done, if anyone wants me to send them autocad versions with all components etc, then I may be able to arrange something... but any custom work which Im not doing for my car will more than probably involve some sort of cost.

Cheers, Owen

["Z" UTE]

Owen, that is exactly why the Toymods forum works so well. Guys like you, who are prepared to go the extra yard, and supply definitive answers. Well done champ.

cheers Chuck

[merc-blue]

ok stright line from LCA mounts is 540mm and 23mm offset on the knuckles
i need a 494mm rack (from end to end?)
need confirmation before i go rack shopping

also what happens if the rack is to long/short?

I will be measuring up a AE82 early this week,
The fact that the actual steering arm ball joins on the origional drag link are only 430mm apart mean anything?

Im going to go into pedders and say this is the width i want find me a manual rack,

[TurboRA28]

Thats correct. 494 pivot to pivot on the rack. Measured at the centre of the inner tie rods basically.

Thats a lot of offset on the knuckles.. Maybe try finding different knuckles with less offset? Yes this will change ackerman, but might make finding a rack easier? AE86/KE70 racks are 560mm pivot to pivot from memory.

[merc-blue]

joel i may be measuring the offset wrong,
How im doing it at the moment is a staight edge between the 2 bolt holes and the LCA ball join hole and measuring the offset to teh center of the steering ball join hole,

Just a note, a mazda 323 is pretty bloody close
540mm (same as LCA mount distance)
So some low offset nuckles and your pretty close

that means a a KE laser will be close aswell, i will check both out early in the week

[o_man_ra23]

The original drag link was probably out a fair bit, as they had terrible bump steer from factory. Also dont forget that you need the arm pivot to arm pivot length LESS than the LCA pivot distance, as the steering arms that bolt to the bottom of the struts swoop back toward the centre. Its the LCA and tie rod which need to form a parallelogram, not the rack and xmember.

BTW, Im not buying a house now, but will be moving the celica into the carport and putting on stilts, so measurements will still be forthcoming.

Cheers, Owen