steering rack improvements

Suspension and other discussion

steering rack improvements

Postby Landon » Wed Oct 10, 2012 10:49 pm

Is there anything we can do to have a lower turning ratio on our cars? like a lower lock to lock set up? I just feel like our steering isn't super and wish there was a way to get a different rack. what do you all think?
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Re: steering rack improvements

Postby CMS-GT4 » Wed Oct 10, 2012 11:39 pm

There used to be a short rack for our cars for about $400, but I doubt you would find them anymore. I had wondered if you could get the steering gear from a euro 205 to change the ratio in a 185. Some other racks are compatible with our systems. Gtfour77 used a corolla rack I believe. It might be worth looking into a 7th gen celica rack to see if they improved it, and if it might fit. There is also a steering gear for a sw20 that might be compatible in our system, but of course you need to get a hold of a mr2 system and compare them. There is a good chance it would not work at all.

I have a really small steering wheel and it does work to give me some quicker steering, though it looks like it belongs in a gokart.
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Re: steering rack improvements

Postby Landon » Thu Oct 11, 2012 7:46 am

Thanks Josh, I'll do some research on that for sure. My buddy just got an evo8 and I'm just envious of how quick the steering is. I'll see what I can find. Thats funny about your steering wheel, I know I definitely want one smaller then my stock one right now.
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Re: steering rack improvements

Postby klue » Thu Oct 11, 2012 8:50 pm

Let me know what you find, im interested in this aswell.
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Re: steering rack improvements

Postby k.beaty » Thu Oct 11, 2012 9:08 pm

I'm using URAS steering spacers on my inner tie rods and they definitely give you a better turning radius. The ratio remains the same though. The only way to change that is to change the gears inside the rack.
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Re: steering rack improvements

Postby lumbercis » Fri Oct 12, 2012 5:08 pm

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Re: steering rack improvements

Postby rallygarage » Fri Oct 12, 2012 8:07 pm

Sorry I missed this thread. I use a steering quickner on my rally car. There is a variety available. Fabrication is needed to install. I have a custom steering column on my rally car built using Borgeson and Flaming Rver components (shafts and joints) and a 1.5 to 1 quickner. I had to abandon original hydraulic PS pump in favor of Citroen Saxo/Rugeot 106 electric hydraulic pump. MR2 pump can be used as well. What I want now is pure electric power steering. Check out EZ Power Steering web sight for specs. Also Falaming River has a setup for alot more money. Both have Universal/ build to order solution. That would also requre a non hydraulic rack that would fit our cars. So

Does anybody know where I can get a non hydraulic rack for ST185?
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Re: steering rack improvements

Postby CMS-GT4 » Fri Oct 12, 2012 10:03 pm

What do you think it would cost to mimic a quick rack setup like yours?
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Re: steering rack improvements

Postby rallygarage » Sat Oct 13, 2012 4:21 am

Used electric hydro pump is maybe $200-$300. Quickner is about $150. You could mount the pump in the engine compartment where ABS was behind right headlight. In my car it is in front of navigators foot rest. Custom high pressure hoses another $200. My setup has one large disadvantage. No colapser. Better be wearing seat belts tight. Colapsers may come upart in rally environment. My Steering column is attached to the roll cage and is custom made from Borgeson components and doesn't flip up and down like stock. Steering wheel comes out to get in and out.

The grandest solution of all is Sellholm in Sweden. He converts a stock rack to faster ratio. Price was high as I heard. You can call them.

It seems that with electric solution there is a better way.
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Re: steering rack improvements

Postby Gary ST165 » Mon Oct 15, 2012 6:41 pm

Landon wrote:Is there anything we can do to have a lower turning ratio on our cars? like a lower lock to lock set up? I just feel like our steering isn't super and wish there was a way to get a different rack. what do you all think?


http://www.gt4oc.net/forums/viewtopic.p ... k#p1340719

Wolfiehere wrote:AE92 racks are 1.6 thats what i run


Gary ST165 wrote:Wolfiehere,

RE: AE92 > does it share identical or near identical mounting points and type to that of the ST185 ?


Wolfiehere wrote:Yes the mount points are the same


But I changed the inners on mine not a hard job but easily done in situ saves taking the rack out.

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Wolfiehere wrote:The Ae11 rack is the same as well :thumbsup:

And if you need any measurements I have 3 in the Unit



hth :smokes:
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Re: steering rack improvements

Postby underscore » Mon Oct 15, 2012 7:02 pm

So if I get an AE11 or AE92 rack, change the inner tie rods, and boom better steering?
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Re: steering rack improvements

Postby Gary ST165 » Mon Oct 15, 2012 7:08 pm

underscore wrote:So if I get an AE11 or AE92 rack, change the inner tie rods, and boom better steering?



you will have a "quicker" rack , as in less turns (1.6) from full lock to full lock,
when compared to stock st185 steering rack is 2.7 turns from lock to lock...
Last edited by Gary ST165 on Mon Oct 15, 2012 7:12 pm, edited 2 times in total.
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Re: steering rack improvements

Postby Hotrodhendrix » Mon Oct 15, 2012 7:10 pm

After depowering my steering rack I find it to be really heavy. Even after a proper depower and replacement of the torsen rod to solid. Its as close as you will get to a manual. Steering is more direct it seems. I may try the AE92 rack like stated above with an MRS electric power steering pump next.

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Re: steering rack improvements

Postby CMS-GT4 » Mon Oct 15, 2012 7:15 pm

Thanks for the info Gary, this is more accessible to most of us than building a full custom setup. I am surprised at how much of a difference there is in turn to lock between the two.
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Re: steering rack improvements

Postby rallygarage » Mon Oct 15, 2012 7:45 pm

What cars are AE92 and AE11?
Is AE92 hydraulic assisted and AE11 not ahydraulic?

Thanks. This is so valuable. Wish I new it before.
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