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electric power steering?

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Old Oct 13, 2006 | 01:07 AM
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electric power steering?

ok i want to put electric power steering on the car i searched and came up with nothing! has anyone done this? if so what parts and how to do it! thank you!
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Old Oct 13, 2006 | 01:17 AM
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There is no electric power steering rack for the FC. If you want electric power steering, you'll have to figure it out yourself.
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Old Oct 13, 2006 | 01:40 AM
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https://www.rx7club.com/showthread.p...+steering+pump I found this..I don't know if it helps at all.But Hey,anything is Possible with a Little thinking(and sometimes Alot of Cash!)
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Old Oct 13, 2006 | 07:10 AM
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buy an rx8 if you want electric power steering
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Old Oct 14, 2006 | 06:03 PM
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Originally Posted by stevie1020
i want to put electric power steering on the car...
WHY?
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Old Oct 14, 2006 | 10:49 PM
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Originally Posted by NZConvertible
WHY?
So the pwr steeing box won't leak fluid all over the driveway. Have you no imagination? Get with the Program!
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Old Oct 15, 2006 | 11:16 PM
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Originally Posted by NZConvertible
WHY?
You've never driven a car with electric power steering.
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Old Oct 15, 2006 | 11:33 PM
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If it's leaking just remove it like I did, or fix the leak. Why go to all the trouble of custom engineering a replacement for a system just because it's currently broken. Why not just fix it?
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Old Oct 15, 2006 | 11:50 PM
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Originally Posted by SMonty
You've never driven a car with electric power steering.
Whats so special about it? Your steering is either power assisted, or its not. I know there are fancy things like speed sensing, but don't some of our cars already have that?
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Old Oct 16, 2006 | 03:00 AM
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Originally Posted by SMonty
You've never driven a car with electric power steering.
You're right, but no matter how good it might be you'd have to be out of your mind to try retro-fitting it to an FC. This one would fail a cost-benefit analysis miserably...
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Old Oct 16, 2006 | 09:42 AM
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Originally Posted by SMonty
You've never driven a car with electric power steering.
I have, plenty of times. In fact my daily driver has electric power steering...and I still don't see the point. The manual rack in the RX-7 is just so superior...
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Old Oct 16, 2006 | 09:24 PM
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hydraulic power steering produces max psi at high rpm, while driving, on the highway or at somepoint where steering is easiest. making the lowest psi at a dead stop (parking lot) gives barely any assist,
with electric power steering you dont have a pump to run that takes away power from the engine at high rpm when you dont need it, and at lower rpm or in a parking lot, you have full assist making turns at a dead stop easy enough to use one finger on the wheel. the assist is inverse and therefore far superior. this is the new nissan system. I'm not familiar with the rx8 but I'm sure it operates the same.

That being said my rx7 has a manual rack, and I agree with NZ that the cost to fab it up would not be worth while.

Last edited by SMonty; Oct 16, 2006 at 09:27 PM.
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Old Oct 17, 2006 | 01:02 AM
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The RX-8 has no hydraulics, there's essentially an electric motor intergrated into the rack.

Power steering takes hardly any power away from the car, except maybe when lots of assist is needed.
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Old Oct 17, 2006 | 01:19 AM
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From: land of slow hondas .... TULSA, OK
my s2000 has electric power steering and god it feels 50 times better than anything period. hydraulic or manual
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Old Oct 17, 2006 | 05:43 AM
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Originally Posted by SMonty
hydraulic power steering produces max psi at high rpm, while driving, on the highway or at somepoint where steering is easiest. making the lowest psi at a dead stop (parking lot) gives barely any assist,
with electric power steering you dont have a pump to run that takes away power from the engine at high rpm when you dont need it, and at lower rpm or in a parking lot, you have full assist making turns at a dead stop easy enough to use one finger on the wheel. the assist is inverse and therefore far superior.
I'm not sure you fully understand how power steering works, particularly the roadspeed-sensitive power steering fitted to many FC's. Even the most basic systems give more than enough assistance at idle (not "barely any"), and you should easily be able to spin the wheel with one finger when stationery and idling (I can anyway). The FC's system uses a stepper motor to gradually reduce assistance as road speed increases, and over ~50mph (IIRC) does not assist at all. This is basically the inverse assistance you say is superior.

Last edited by NZConvertible; Oct 17, 2006 at 05:46 AM.
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Old Oct 17, 2006 | 08:32 AM
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True, the FC has the BEST powersteering of any car I have ever driven except the new 2006 GTI's with electric power steering....
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Old Oct 17, 2006 | 08:34 AM
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Originally Posted by SMonty
hydraulic power steering produces max psi at high rpm, while driving, on the highway or at somepoint where steering is easiest. making the lowest psi at a dead stop (parking lot) gives barely any assist,
with electric power steering you dont have a pump to run that takes away power from the engine at high rpm when you dont need it, and at lower rpm or in a parking lot, you have full assist making turns at a dead stop easy enough to use one finger on the wheel. the assist is inverse and therefore far superior. this is the new nissan system. I'm not familiar with the rx8 but I'm sure it operates the same.
The RX-7 uses a either a vehicle speed sensitive power steering, or an engine speed sensitive power steering depending on model and year. Both systems are designed to provide the appropriate amount of boost under the current conditions of the car. You get more boost at low speeds as larger efforts are required to turn the wheels (you are turning them more) and less boost at higher speeds (you turn the wheels less). This is all controlled by the power steering ECU.

As for taking power away from the engine...Where do you think the electrical power to run the electric power steering comes from? The alternator...Which of course is spun by the engine.

Originally Posted by gxlbiscuit
my s2000 has electric power steering and god it feels 50 times better than anything period. hydraulic or manual
I'm going to go out on a limb and say that my Insight has the same rack (in a lighter version). In fact I just searched around and based on pictures they look almost exactly the same. While it is very linear and easy to use, it does not feel "good". I find the feedback from the road seriously lacking compared to the FC manual rack.
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