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View Full Version : What Vehicles can I pull an EPS from to use in my MK1



maginter
04-22-2025, 10:52 AM
Hi All -

I have seen a ton of posts on Electric Power Steering(EPS) and posts on using an EPS from an existing vehicle. Knowing that there are several manufactures out there, which of those vehicle are there to take from and fit well into the Roadster?

Thanks in advance!

Mark

narly1
04-22-2025, 12:41 PM
The EPS units from the Toyota Prius and Saturn Vue seem to be a couple of the most popular ones with the restomod crowd. They can be purchased inexpensively but with that being said they generally need some physical modding to work in other applications. The other option is to buy one of the generic ones market for use in side-by-sides (aka UTVs). There are a multitude of vehicle specific kits out there, the differences between them being the universal joints (different splines) and the vehicle mounting brackets that they come with. You can also just buy the EPS drive, controller and cable without any U-joints or brackets. That's what I did, adding the needed U-joints from Amazon and the double-D shafts that came with my kit, that I cut to length to suit. The difference in price being (in USD) about $75 vs $250.

It's your choice depending on how much bench top engineering you want to take on.

Earl

maginter
04-22-2025, 01:07 PM
The EPS units from the Toyota Prius and Saturn Vue seem to be a couple of the most popular ones with the restomod crowd. They can be purchased inexpensively but with that being said they generally need some physical modding to work in other applications. The other option is to buy one of the generic ones market for use in side-by-sides (aka UTVs). There are a multitude of vehicle specific kits out there, the differences between them being the universal joints (different splines) and the vehicle mounting brackets that they come with. You can also just buy the EPS drive, controller and cable without any U-joints or brackets. That's what I did, adding the needed U-joints from Amazon and the double-D shafts that came with my kit, that I cut to length to suit. The difference in price being (in USD) about $75 vs $250.

It's your choice depending on how much bench top engineering you want to take on.

Earl

Thanks Earl! I am looking at all options and do not mind doing bench work to save some money.

narly1
04-22-2025, 03:11 PM
I should also add that in my case I'm adding EPS to the hot rod. Its frame is already set up with a bracket for the UTV style motor so going that route was the easiest. I think they all come out of the same factory as the Flaming River units.

Earl

Jeff Kleiner
04-22-2025, 03:34 PM
Question: why not simply use hydraulic power steering? No reinventing the wheel required...a Fox Mustang rack and power steering pump will bolt right on. And let me tell you, after having driven EPAS roadsters I'm not a fan. Even with lots of positive caster and proper toe in they don't want to self center and to hold a set line they require countersteer input to stop the assist.

Jeff

maginter
04-22-2025, 05:17 PM
Question: why not simply use hydraulic power steering? No reinventing the wheel required...a Fox Mustang rack and power steering pump will bolt right on. And let me tell you, after having driven EPAS roadsters I'm not a fan. Even with lots of positive caster and proper toe in they don't want to self center and to hold a set line they require countersteer input to stop the assist.

Jeff

Over indulgence and not want to mess with a pump, but the more I read, the more I will probably stay traditional.

weendoggy
04-22-2025, 05:32 PM
Over indulgence and not want to mess with a pump, but the more I read, the more I will probably stay traditional.

A GM Type II pump and hoses work just fine. Looks much better than the Ford unit, imo.

Kbl7td
04-22-2025, 07:20 PM
Saturn vue for me. Pump wouldn’t fit with an LT in the car.

Its Bruce
04-23-2025, 03:44 PM
A GM Type II pump and hoses work just fine. Looks much better than the Ford unit, imo.

This, with a pressure/volume reducing valve, is a simple answer and works very well for me. I used a couple of rack to AN adapters and made my own PTFE AN PS lines.

JJ in Cbus
04-24-2025, 03:31 PM
Maginter, well, if you decide you still want to go with the EPS, I have a unit I pulled from an Equinox a few years ago. I never continued on with the project and ended up going with Hydraulic. I can make you a good deal. Let me know, it is sitting on the shelf in my shop.

jj

212993



https://thefactoryfiveforum.com/showthread.php?30024-Removing-an-EPS-From-an-Equinox-Vue

Mike.Bray
04-24-2025, 03:46 PM
A GM Type II pump and hoses work just fine. Looks much better than the Ford unit, imo.

I did the GM Type II pump with a remote reservoir which gave plenty of clearance for the steering shaft. Made my own hoses with braded PTFE hose and AN fittings. It was all easy peasy and I absolutely love the way my car steers.

OB6
04-25-2025, 08:00 AM
This, with a pressure/volume reducing valve, is a simple answer and works very well for me. I used a couple of rack to AN adapters and made my own PTFE AN PS lines.

Agree 100%. The pump that was part of my serpentine system came valved for the correct pressure (per my request). I made my own lines using hardware and hose from these guys: https://leepowersteering.com/