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Old 06-21-2018, 08:17 AM   #81
ff
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Let me just reiterate again how cool all of this is. And how envious I am of you having the knowledge, tools, and time to devote to such projects. Thanks for taking the time to post everything as you go, too. I find it very interesting.
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Old 06-21-2018, 09:11 AM   #82
equ
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I meant it in a good way... It is quite incredible, a definite one-of-a-kind FrankenCar. Do you plan to register it or keep it competition only?
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Old 06-21-2018, 10:20 AM   #83
John V
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Quote:
Originally Posted by equ View Post
I meant it in a good way... It is quite incredible, a definite one-of-a-kind FrankenCar. Do you plan to register it or keep it competition only?
Appreciate the comments.

I don't plan to register it. It won't have any emissions controls and I'm running an aftermarket ECU so it won't have OBD-II diagnostics. When it's old enough that I can get Historic plates for it I may tag it just so I can go play with it more often. But that's several years off (20 year rule in Maryland, so 2024)
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Old 06-23-2018, 05:32 PM   #84
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One of my big concerns on this project was whether the Miata steering rack would fit. It does, but there is a fitting on the rack that interferes with the front pulley. It's one of the directional high-pressure lines from the spool valve. These are hard lines (basically brake lines but carrying PS fluid) that run from the spool valve to the rack. Pic below shows the fitting with the line removed. When the line is installed it sticks up about two inches, because you can't really make tight radius bends with brake lines.



Other than that, the rack fits perfectly and doesn't interfere at all. I think what I'll end up doing is converting that fitting to a banjo fitting with crush washers and then running a flexible, braided line to the spool valve. Sort of like this:



Anyway, when I had the rack out I noticed that the two bushings on the driver's side are super soft rubber. I hate compliance in steering and suspension when it comes to autocross cars, so I made up a couple of delrin bushings and re-used the stock Miata metal inserts from the rubber bushings (with the rubber burned off ).



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