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Old 07-05-2013, 05:54 PM   #1
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Default Is there a modern variable TPS solution for the 1.6?

I searched high and low but all of the threads I found regarding variable TPS mods for a 1.6 are from several years ago. The BMW TPS that seemed to be popular now seems to be impossible to find for a reasonable price.

So do I just suck at searching and there IS some versatile solution for modern Miata owners who crave variable throttle positioning or is what I found correct and the latest "here's how you wire up a TPS" thread was written when Moses wore short pants?
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Old 07-05-2013, 06:43 PM   #2
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I used the Wells TPS from the sticky. Get in the Zone!
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Old 07-05-2013, 07:07 PM   #3
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I was really hoping for more of a solder solution (like the BMW version) over a mechanically rigged up version.

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Old 07-05-2013, 07:13 PM   #4
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This is probably a dumb question, but if you file down the parts it refers to here:



Wouldn't that mean that the rotating shaft only "catches" in one direction?
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Old 07-05-2013, 09:59 PM   #5
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Also, I got an email alert saying that Joe Perez responded to this thread. I check the thread and no Joe.
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Old 07-05-2013, 11:28 PM   #6
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Quote:
Originally Posted by Mr.E.G. View Post
Also, I got an email alert saying that Joe Perez responded to this thread. I check the thread and no Joe.
Have you considered the possibility that you may be insane?

I'm not familiar with this specific unit- I've always used either the Honda B-series TPS or the BMW 5/7 TPS on my 1.6 engines. (Note to self: stop buying '90-'93 Miatas, they suck in so many ways...)

However, some (most?) analog TPSes have built in spring returns, meaning that the throttle shaft only needs to force it open, and the TPS will automatically run itself back to the closed position. It's possible that the TPS201 may be of this design.

(Waits for someone who has used one to chime in.)
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Old 07-05-2013, 11:44 PM   #7
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I'm super cereal:

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Old 07-05-2013, 11:46 PM   #8
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Quote:
Originally Posted by Joe Perez View Post
(Waits for someone who has used one to chime in.)
If it doesn't work the way you're suggesting, I suppose I could throw some Mighty Putty or something like that in there, no?
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Old 07-06-2013, 04:01 AM   #9
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Quote:
Originally Posted by Joe Perez View Post
However, some (most?) analog TPSes have built in spring returns, meaning that the throttle shaft only needs to force it open, and the TPS will automatically run itself back to the closed position. It's possible that the TPS201 may be of this design.

(Waits for someone who has used one to chime in.)
The TPS201 has a return spring. Has worked faithfully for years on my car.
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Old 07-06-2013, 05:14 AM   #10
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There's a guy on MX5Nutz who has designed an adaptor for the BMW TPS for printing on a 3D printer if you have access to one.

He's made the .stl file freely available if you want to use it.

Vtps Adapter Plate - Forced Induction & N/A Power Mods - MX5Nutz Forum
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Old 07-06-2013, 11:05 AM   #11
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Originally Posted by richyvrlimited View Post
There's a guy on MX5Nutz who has designed an adaptor for the BMW TPS for printing on a 3D printer if you have access to one.

He's made the .stl file freely available if you want to use it.
Interesting.

I suppose it's only a matter of time until an online community pops up for the sole purpose of sharing the designs for exotic 3d printed sex toys.

Oh, wait...

MakerLove.com - Free Sex Toy Designs for Your 3D Printer

(Obviously NWS.)
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Old 07-06-2013, 06:40 PM   #12
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Old 07-07-2013, 01:44 AM   #13
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Originally Posted by hornetball View Post
The TPS201 has a return spring. Has worked faithfully for years on my car.
I'm stating the obvious here, but the shaft on the throttle body only needs to catch and rotate the switch as the throttle plate opens and then the switch will return itself?

That just seems too easy. Haha.
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Old 07-07-2013, 02:05 AM   #14
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Quote:
Originally Posted by Mr.E.G. View Post
I'm stating the obvious here, but the shaft on the throttle body only needs to catch and rotate the switch as the throttle plate opens and then the switch will return itself?

That just seems too easy. Haha.
It's called good design. The fact that it seems easy means that the engineer did his job correctly.
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