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dorikin
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May 2002
TA22 SUSPENSION - coil overs??? Thu, 13 June 2002 08:03 Go to next message
i'm sure this has been done to death, but i still want some help, cos i can't find what i'm looking for anywhere else.

i'm interested in a very good handling car!!!

here goes

1. what are recommened spring rates for f/r on TA22
2. are there roll centre adjusters available for TA22?
3. is the use of roll centre adjusters recommended in the front?
4. what is the best way to reduce or eliminate bump steer?

please feel free to add any other comments related to TA22 suspension.

[Updated on: Tue, 18 June 2002 12:47]

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Jonny2TG
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May 2002
Re: TA22 SUSPENSION - need advice Fri, 14 June 2002 05:25 Go to previous messageGo to next message
If you don't lower the car, you don't need roll center adjusters. If you lower the car 1.5", you can use a 1.5" roll center adjuster blocks under the struts, to maintain the stock roll center geometry.

To eliminate the bump steer, you probably have to cut and reweld the steering knuckles and steering linkage in a better position. This takes alot of knowledge and skill to do, and is illegal to do so unless you get the welds x-rayed and stuff. So forget that. Sorry.

But when you get stiffer springs/shocks, suspension travel will not be as much and bump steer will not be as noticeable.

I would recomend getting the lower control arms lengthened just a little, to give some neagative camber. Lengthening the arms also reduces the effects of bump steer just a little, and the negative camber helps stop understeer.

Also
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Jonny2TG
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Re: TA22 SUSPENSION - need advice Fri, 14 June 2002 05:33 Go to previous messageGo to next message
Also pull the bottom of the struts forward a little with the nuts on the radius rods. This gives you more caster (read dynamic negative camber), also good for controling understeer.

And polyurathane bushes can only make things better.
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dorikin
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Re: TA22 SUSPENSION - need advice Tue, 18 June 2002 09:11 Go to previous messageGo to next message
is that it??? is there no more input???

i'm hoping to do a true 60mm coil over setup on the front end as soon as my exams are over... what i'd love to know is what spring rates will work best for a TA22

and while i'm here, has anyone had short stroke shocks in a TA22 before??? if so what brand and where did you get them from? part numbers can't hurt either if you can manage.
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Celica RA45
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May 2002
Re: TA22 SUSPENSION - need advice Tue, 18 June 2002 10:09 Go to previous messageGo to next message
it depends on what you are after road or track ,i would recomend bilsteins rear springs 120 lbs and 250 small dia springs on adj strut platforms ,bars 24 mm front back 14 to 15 and they should be fully adj to get the best out of it
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dorikin
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Re: TA22 SUSPENSION - need advice Tue, 18 June 2002 10:47 Go to previous messageGo to next message
ahhh, thankyou... so is that 250lb front 120lb rear springs??? do bilstein make a spring to suit TA22 in the rear? obviously the small diameter springs in the front will be a universal fit? i hope to get my current struts fitted with threaded sleaves so i can use adjustable spring platforms...

as for the small diameter springs, is there a standard size?? i've heard a lot about 60mm springs. if there is a stanard size, i suppose that there would be a standard sort of threaded spring clamp? if so then who knows what diameter and pitch the thread is on these spring clamps. this would help things out when it comes to fitting threaded sleaves over the top of the struts in my car as i'll have them made to suit.

thanks again...
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Celica RA45
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Re: TA22 SUSPENSION - need advice Wed, 19 June 2002 11:28 Go to previous messageGo to next message
the bilsteins are shockers
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dorikin
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Re: TA22 SUSPENSION - coil overs??? Wed, 19 June 2002 11:34 Go to previous messageGo to next message
sorry, this shouldn't be as confusing as it is... when you first said bilstein, i assumed you meant shocks, cos i didn't think they made springs, just the lack of punctuation in your post confused me... yes i am seriously thinking of bilstein shocks, they are the best???

BTW, can anyone help out with the coil over questions?
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Karl_skewes
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May 2002
Re: TA22 SUSPENSION - coil overs??? Wed, 19 June 2002 11:39 Go to previous messageGo to next message
bah. 250lbs is about 4KG/Nm!!!

I'd personally aim for 6KG front, 4KG rear.
Which translates roughly to 335lbs front, 240lbs rear.

If you run good shocks, valved for this spring rate.... and I'm not talking about the monroe GT Gas shocks that the 'salesman' assures you will be fine. You want proper konis or bilsteins or similar that are revalvable.

If you run shit shocks, this will be crap

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Celica RA45
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Re: TA22 SUSPENSION - coil overs??? Thu, 20 June 2002 07:17 Go to previous messageGo to next message
KARL i race a ra45 with aoo8rs and i only use 275 lbs on front and 165 on the back and thats about what club cars run any way and a good shocker like Bilsteins selby adj bars on front and rear ,d o you race yours
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Karl_skewes
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Re: TA22 SUSPENSION - coil overs??? Thu, 20 June 2002 10:50 Go to previous messageGo to next message
Nope.

165lbs is about 2.9KGNm, and 275lbs is 4.9KGNm.
Seems a bit low to be racing on. Is this gravel, tarmac, grasskhana or otherwise?

Desired spring rate it all depends on the surface.

Drifter4AG runs about 4KG front, 4.5KG rear... in need of new front springs he knows..... but anyways, even on bumpy Auckland streets it's not too bad (as passenger or driver). And that's good shocks in the back and average ones in the front.
He also runs dual rear swaybars.

I just would have thought that dorikin might prefer something stiffer, especially as the TA22 is a bit heavier then the AE86, and Aussie roads (brisbane and gold coast are all i've been on) seem smoother then NZ stuff.

Karl
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dorikin
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Re: TA22 SUSPENSION - coil overs??? Thu, 20 June 2002 11:32 Go to previous messageGo to next message
thanks for the info guys

as for stiffness... i don't want it rock solid, and i don't plan to race the car... all i want is a firm ride and sporty performance handling capabilities...


BTW, what do you guys thing about a small diameter spring - coil over setup for the front?
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Karl_skewes
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New Zealand
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Re: TA22 SUSPENSION - coil overs??? Thu, 20 June 2002 20:08 Go to previous message
well, unless you want the ability to lower your car right down for shows or just low ie: >2" drop, or plan to run enough camber to have the spring to hit on the strut tower...... it isn't really worth it.

Karl

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