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#1
9th July 2013, 06:05 PM
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Mx5 steering rack. Will it fit ?
Don't know if anybody can help at all please ? Will the mk1 mx5 steering rack fit the roadster please ? And also, in the gillham online mx5 build manual, it says that you can use mx5 uprights. But, this doesn't seem right, because the pictures show a suspension bracket at the top, and the mx5 struts have a single nut at the top. Any help would be really appreciated. These build manuals are really vague on the important stuff, and go into depth on the less important stuff.
 
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#2
9th July 2013, 06:16 PM
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The mx5 uprights are used front and back. Not sute about the seering rack but I have used an escort quick rack on mine.
David
__________________
Click to see my build photos on Flikr http://www.flickr.com/photos/67112582@N03/ Saturn MX5 Based Chassis, Limited Slip Diff & 2.4 Quick Rack. Build cost.... seems to be spending more on tools than car bits at the moment! (they will be handy in the future though). Car iva'd and passed 15/08/2014. Finished weight 572kg.
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#3
9th July 2013, 06:38 PM
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The mx5 uprights can be used with the wishbones as in the mx5 plans the mx5 strut is not used so the single nut wont be an issue
Cant say about the steering rack as I too am using the mk2 escort rack
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#4
9th July 2013, 06:46 PM
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Cheers chaps. Are you using coil overs on the mx5 kit then ? I was planning on using an escort 2.9 turn quick steering rack, but the urge to scavenge as much as possible from my mx5. I am just tight. Lol
Last edited by jason 82 : 9th July 2013 at 06:48 PM.
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#7
9th July 2013, 07:18 PM
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My understanding is that the miata rack needs to be shortened by about 5.5 inches, to prevent bump steer. Don't know if you guys have the Keith Tanner book, but he goes into it in detail. I'm debating this myself, since the selection of OE steering racks that are right from the start is limited. But I dont know if I trust my welding skill enough for such a key piece of hardware.
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#9
9th July 2013, 09:17 PM
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Shortening the MX5 rack, as said, is common in North America.
But they don't have a plentiful supply of mark 2 Escort racks over there. We do and they're not expensive new. You would also need to be careful as welding mods to the racks aren't allowed for the IVA or MOT; this is why rack extensions are screw-on rather than weld-on. And the build manual that Andy originally wrote is to be used alongside the book, not a replacement.
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#10
9th July 2013, 09:36 PM
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The MX5 rack is about 7" too long for a roadster/locost so its quite a bit of work to shorten it.
Heres an example. Doable but you need a fairly large lathe really. Cheers Stot
__________________
1.6 Mazda B6 : Garrett TBO339 : 420cc WRX Injectors : FMIC : Microsquirt V3 : LC-2 Wideband : Toyota COP : 1.8 ATB LSD Build Started Jan 2013 : OTR Aug 2014 : Still OTR June 2024
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