Looping P/S rack? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Bigsyke · 06-28-2008, 01:24 PM

I recently picked up my 1st s14. Ive mostly done work on 6th gen civics. In every search ive come across on these boards the people who removed P/S, only removed the belt, and capped the lines. They then complained about how difficult it is to turn [due to a heavy front/back weight distribution].

The honda's arent as difficult to turn when the lines are capped, but the difference is night and day when properly vented. Why hasnt anyone looped the rack, with a breather to allow;

Air to assist the ATF fluid around the rack
Air/pressure to excape/vent efficiently.

For most of the honda enthusiasts who track our cars looping the P/S is the 1st thing to do, which actually makes it easier to turn the car at higher speeds than having a P/S system. Even in parking lots slow speed turning is a breeze. Looking at the subframe of the s14 this seems possible - however I dont want to start cutting lines if there is a specific reason the s14 chassis Cant accomplish this.

huffandpuff00 · 07-01-2008, 11:22 PM

yeah I did that on my buddies hachi until he went with a manual rack. it should work. try it out and let us know how it feels.

murda-c · 07-01-2008, 11:29 PM

The only reason i would remove power steering in a 240 is if i had a quicker manual rack. Honestly the feel isn't much better and it's a bitch when you have to recover a tail slide...Getting new power steering rack bushings and better tie rod ends will help steering feel alot.

Maybe the breather will make a big difference though.

EDIT: honestly i think you should just look at what type of power steering system both cars have, where the lines are routed, and see if the method you're used to using would work.

If you do it, make a write up thread on this forum with pix please.

Dutchmalmiss · 07-02-2008, 10:07 AM

Yes this does sound interesting. I forgot I drove a track-ready Civic with that setup, and it was blazingly easier than turning in an S13 with effed up PS haha.

Bigsyke · 07-05-2008, 11:07 PM

Im just looking at an efficiency standpoint. The P/S system pump runs off the engines power to pump fluid when ever the wheel is turned. On a 1.6-1.8l honda engine this actually made a large difference.

By removing the clutch fan and PS pump Im sure you could free up some HP/MPG by making the engine more efficient. I just got my s14 however I really am hesitant to start cutting lines and flairing fittings. I know the front end of an s14 is ALOT heavier than a civic. Ill do some more searching around before I start snipping lines on the rack.

The Stig · 07-06-2008, 04:47 PM

I've depowered the power steering rack using the method outlined here http://flyinmiata.com/tech/depower.php?x=1

The feel still wasn't what I was looking for so I went back to an undriven power steering pump and underdrive crank pulley. That too isn't what I wanted but oh well. Next time I'm at the boneyard I'll grab a z31 manual rack because there's always discussion about it possibly fitting but hardly any confirmation.

06-28-2008, 01:24 PM	#1
Bigsyke Zilvia FREAK! Join Date: Jun 2008 Location: NA Age: 36 Posts: 1,342 Trader Rating: (0) Feedback Score: 0 reviews	Looping P/S rack? I recently picked up my 1st s14. Ive mostly done work on 6th gen civics. In every search ive come across on these boards the people who removed P/S, only removed the belt, and capped the lines. They then complained about how difficult it is to turn [due to a heavy front/back weight distribution]. The honda's arent as difficult to turn when the lines are capped, but the difference is night and day when properly vented. Why hasnt anyone looped the rack, with a breather to allow; Air to assist the ATF fluid around the rack Air/pressure to excape/vent efficiently. For most of the honda enthusiasts who track our cars looping the P/S is the 1st thing to do, which actually makes it easier to turn the car at higher speeds than having a P/S system. Even in parking lots slow speed turning is a breeze. Looking at the subframe of the s14 this seems possible - however I dont want to start cutting lines if there is a specific reason the s14 chassis Cant accomplish this.

07-01-2008, 11:29 PM	#3
murda-c Post Whore! Join Date: Jan 2007 Location: Montgomery County, MD Age: 33 Posts: 3,197 Trader Rating: (1) Feedback Score: 1 reviews	The only reason i would remove power steering in a 240 is if i had a quicker manual rack. Honestly the feel isn't much better and it's a bitch when you have to recover a tail slide...Getting new power steering rack bushings and better tie rod ends will help steering feel alot. Maybe the breather will make a big difference though. EDIT: honestly i think you should just look at what type of power steering system both cars have, where the lines are routed, and see if the method you're used to using would work. If you do it, make a write up thread on this forum with pix please. __________________

07-02-2008, 10:07 AM	#4
Dutchmalmiss Post Whore! Join Date: Apr 2003 Location: Socal (323) Age: 35 Posts: 3,475 Trader Rating: (13) Feedback Score: 13 reviews	Yes this does sound interesting. I forgot I drove a track-ready Civic with that setup, and it was blazingly easier than turning in an S13 with effed up PS haha. __________________ Pignose, biaaatch.

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07-01-2008, 11:22 PM	#2
huffandpuff00 Zilvia Addict Join Date: Jul 2006 Location: oregon Age: 35 Posts: 835 Trader Rating: (9) Feedback Score: 9 reviews	yeah I did that on my buddies hachi until he went with a manual rack. it should work. try it out and let us know how it feels.

07-05-2008, 11:07 PM	#5
Bigsyke Zilvia FREAK! Join Date: Jun 2008 Location: NA Age: 36 Posts: 1,342 Trader Rating: (0) Feedback Score: 0 reviews	Im just looking at an efficiency standpoint. The P/S system pump runs off the engines power to pump fluid when ever the wheel is turned. On a 1.6-1.8l honda engine this actually made a large difference. By removing the clutch fan and PS pump Im sure you could free up some HP/MPG by making the engine more efficient. I just got my s14 however I really am hesitant to start cutting lines and flairing fittings. I know the front end of an s14 is ALOT heavier than a civic. Ill do some more searching around before I start snipping lines on the rack.

07-06-2008, 04:47 PM	#6
The Stig Leaky Injector Join Date: Oct 2005 Location: West Covina Posts: 88 Trader Rating: (1) Feedback Score: 1 reviews	I've depowered the power steering rack using the method outlined here http://flyinmiata.com/tech/depower.php?x=1 The feel still wasn't what I was looking for so I went back to an undriven power steering pump and underdrive crank pulley. That too isn't what I wanted but oh well. Next time I'm at the boneyard I'll grab a z31 manual rack because there's always discussion about it possibly fitting but hardly any confirmation.