De-Powering a power steering rack. - Miata Turbo Forum - Boost cars, acquire cats.

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Old 09-10-2007, 02:58 PM   #1
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Default De-Powering a power steering rack.

Anyone done this? My buddy Ted did his, but he did it the right way and got a manual rack.

I don't really see much need for power steering on a Miata and will not be installing the pump on hte new engine and since I'll have room to work when I swap engines I want to do this. There was a good tech article on doing this in a Sport Compact Car magazine back when they had good tech articles and weren't the ricerboi comic book that they are now. However that was then and like almost 8 years ago... so ****.
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Old 09-10-2007, 03:00 PM   #2
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Quote:
Originally Posted by firedog25 View Post
Anyone done this? My buddy Ted did his, but he did it the right way and got a manual rack.
How is this the "right" way? If you remove the seal from the powersteering rack, you basically have a Manual rack... with a shorter ratio.

IMO, putting a manual rack in the power(depowered) rack cars... is a downgrade.

Here is a de-powering guide specifically for the Miata rack though, http://www.flyinmiata.com/tech/depower.php
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Old 09-10-2007, 03:00 PM   #3
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http://www.flyinmiata.com/tech/depower.php

Many of the guys on here swear by a PS depower. Most of them just loop the lines, though FM does show how to take the seal out.
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Old 09-10-2007, 03:22 PM   #4
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fully depowered rack all the way!
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Old 09-10-2007, 04:33 PM   #5
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I have looped lines, it's a big improvement over having a powered rack. I can really tell what people meant when they say the factory PS is overboosted.

The factory manual rack is too slow a ratio for me. I like having the same ratio as PS without the pump. I'll be doing the full depower when I get home.
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Old 09-10-2007, 05:56 PM   #6
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Quote:
Originally Posted by firedog25 View Post
Anyone done this? My buddy Ted did his, but he did it the right way and got a manual rack.
Thats not the right way...thats just going to a manual rack...the depowered factory rack is a faster ratio...

I did it, haven't even removed the seals because I'm lazy but it works great.
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Old 09-10-2007, 06:42 PM   #7
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So cut and plug?
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Old 09-10-2007, 06:46 PM   #8
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Pretty much. Do a search man, this same **** gets talked about once a month.
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Old 09-10-2007, 07:04 PM   #9
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Quote:
Originally Posted by cjernigan View Post
http://www.flyinmiata.com/tech/depower.php

Many of the guys on here swear by a PS depower. Most of them just loop the lines, though FM does show how to take the seal out.
yup.

Mainly just because its a PITA to pull the whole assembly...I may be pulling my motor soon if I do, thats coming out too.
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Old 09-10-2007, 07:21 PM   #10
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Quote:
Originally Posted by firedog25 View Post
So cut and plug?
Kinda. Some of the lines need to be looped to get the least resistance (without pulling the rack, that is). I don't know of any pics of the looped lines offhand but try searching on clubroadster.
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Old 09-10-2007, 07:38 PM   #11
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Quote:
Originally Posted by kotomile View Post
Kinda. Some of the lines need to be looped to get the least resistance (without pulling the rack, that is). I don't know of any pics of the looped lines offhand but try searching on clubroadster.
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Old 09-10-2007, 07:39 PM   #12
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Old 09-10-2007, 08:54 PM   #13
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I am doing the depower as well. I ordered the non-ps pulley assembly and belt for the car. In no way will I get rid of the A/C while I live in FL. For those of you that are interested in removing the PS pump along with depowering your rack, and you want to keep your A/C, will need this belt tensioner assembly. They run about 140.00 new. I lucked out and found a used one for less than half of that shipped to my door.

Here are the factory part numbers, and keep in mind this is for a 1.8L. It might be the same for the 1.6L.

BP0115930-Pulley bracket assembly
997841040-flange bolts, you will need 3
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Old 09-11-2007, 10:50 PM   #14
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When I replaced my motor I depowered because I didn't want to put everything back, lol.
<- lazy :gay:
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Old 09-11-2007, 11:02 PM   #15
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I've driven a factory power, factory manual, looped line depower, and just did the FM style depower on my 90. I can't say which was my favorite yet because I haven't had the 90 aligned since it came back online last weekend after all the mods. I can definitely say two things however. I loved the factory manual, and I hated the looped line. Depowering FM style was straightforward, however, I had darn near an empty engine bay to work with. I also have to hope that the shop can align my car properly, as it's way out of whack right now.
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Old 09-12-2007, 02:06 AM   #16
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thanks SamS
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Old 07-23-2008, 02:14 AM   #17
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i also have driven the powered depowered power by looped and now i have a manual and i like the manual over depowered but gotta love my power even though it is a little over powered.
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Old 07-23-2008, 12:15 PM   #18
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Quote:
Originally Posted by drftem2 View Post
i also have driven the powered depowered power by looped and now i have a manual and i like the manual over depowered but gotta love my power even though it is a little over powered.
lol ya me 2 cause its teh best fro the car like woa and all my freind s like say whu omg thats fukin crasy
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Old 07-23-2008, 12:17 PM   #19
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Originally Posted by drftem2 View Post
i also have driven the powered depowered power by looped and now i have a manual and i like the manual over depowered but gotta love my power even though it is a little over powered.
Why the **** would you dig up an 11month old post to say absolutely nothing. HEY NOOB, stop pulling stupid **** trying to get your post count up!
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Old 07-24-2008, 05:24 AM   #20
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Also... he has an abbreviation for drift in his username, and can't use the shift button, that's a very promising start here.

*edit* (Who un-censored the d-word?)
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