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240 electric power steering

Dvroofer

Dvroofer

Active member
Joined
Jan 23, 2021
Location
Long Beach,ca
I’m going to be attempting to covert an electric power steering pump from a 2006 s40 onto a 1991 240. I grabbed the working pump . Connectors and the high pressure line from the s40. I also have an additional high pressure line from a 88 7 series that fits the pump. I’m looking at where to fit this thing and have few options. If I make a bracket I can put it right where the stock na air box would have been. I have relocated the battery to the rear but have not trimmed the old metal where it used to sit. This could also free up room . I don’t have many option without extending the line. Has anyone else put one of these in a 240? If so how’d you do it? IMG_1918.jpeg
 
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283SD said:
And why ?
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Because my car is a reflection of my lack of sanity. Also my setup on my motor restricts where I can put things. I’d like to avoid more belts and or switching things around i only have the driver side top accessory mount available due to header,but it would be tight to my intake I believe. To be honest I heard people like to use them on other builds so I snagged it. I was just looking for someone who is possibly using one and seeing where they put it.
 
You can also mount behind the passenger fender. Did you not keep the black bracket holder? Get some fittings for rack and pump and some an hoses. Not much to it.
 
Diagrams show Can Bus lines as well. Got all the needed modules and harnesses?


s40-ps.png
 
MasterBlaster said:
Diagrams show Can Bus lines as well. Got all the needed modules and harnesses?
Click to expand...

the pump in question is very popular with other contingents of enthusiasts, partly because it’s a pump and reservoir in one unit, but partly because you don’t actually need to run it on canbus. unlike many other modern EPAS setups, with this you can just send power to it and it says “yes” and runs at a percentage of its capacity based on load iirc. hot rod guys use it a lot which is why they cost $200 on the internet instead of $20 at the junkyard.
 
Cool, I have the same intake but did a lot of finagling to get the remote reservoir belt driven pump into that spot. But I have a B23 and the alternator sits in the other side, I don't have A/C which would be where your alternator lives.
 
MasterBlaster said:
Diagrams show Can Bus lines as well. Got all the needed modules and harnesses?


s40-ps.png
Click to expand...
I’m wiring in power ground and the grey blue wire to a switched power source. I don’t think there’s room in my passenger fender without hacking sheet metal out to be able to fill and I don’t want to extend any lines.
 
283SD said:
And why ?
Click to expand...
Fewer losses and power consumption is the main reason many people use them. When you are cruising down the road going straight with a belt-driven pump you are overworking the system and fluid and it uses more power than necessary. A smart EPAS system reduces the assist at higher speeds and will help your car be more efficient. This can translate to better MPG and acceleration.

Its not ideal to run them without a brain box because they default to (75% duty cycle)? I don't remember the exact number.

there are a few good options to control these,

https://www.nmstec.ca/2022/07/25/universal-power-steering-pump-controller/ is bolt-in retail solution.

https://github.com/NMSTEC/Volvo_EPS_FREE is the open source version you can load onto an arduino and go the DIY approach with the TB budget in mind.
 
blkaplan said:
Fewer losses and power consumption is the main reason many people use them. When you are cruising down the road going straight with a belt-driven pump you are overworking the system and fluid and it uses more power than necessary. A smart EPAS system reduces the assist at higher speeds and will help your car be more efficient. This can translate to better MPG and acceleration.

Its not ideal to run them without a brain box because they default to (75% duty cycle)? I don't remember the exact number.

there are a few good options to control these,

https://www.nmstec.ca/2022/07/25/universal-power-steering-pump-controller/ is bolt-in retail solution.

https://github.com/NMSTEC/Volvo_EPS_FREE is the open source version you can load onto an arduino and go the DIY approach with the TB budget in mind.
Click to expand...
I'd recommend a mazda pump. It's the exact same as volvo, but better and much cheaper. Like $50 at a junkyard. Downside, doesn't run in limp mode and I haven't opensourced that solution. At the moment my controller is the only one that supports it.

If you plan on tracking or drifting it, or exceedingly heavy, go for charger/jeep pump. Way more powerful pump. On my website I recently posted ehpas comparisons.
 
NMStec said:
I'd recommend a mazda pump. It's the exact same as volvo, but better and much cheaper. Like $50 at a junkyard. Downside, doesn't run in limp mode and I haven't opensourced that solution. At the moment my controller is the only one that supports it.

If you plan on tracking or drifting it, or exceedingly heavy, go for charger/jeep pump. Way more powerful pump. On my website I recently posted ehpas comparisons.
Click to expand...
Smells spammy.
 
mikep said:
Avoid vague mentions of your un-named stuff you would profit from in your first post under a nondescript user name at a time when we are being hit by spammers a lot.
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My user name is my company name, and I have posted factual information right after the person that mentioned my company. Do I stand to profit? Yes. Although that depends on what system you want. I've so far opensourced the solution to volvo pumps and brz columns.

In regards to Un-named stuff, I call the power steering controller, universal nms-PSC.

That being said, volvo is not the best option at all. In limp mode I'd say it's barely usable so a controller is still a recommendation. Does not have to be mine. But the point behind it is you can save money by buying a mazda pump which is identical.

So yes, technically I stand to profit, but I also am not lying or pushing my product. I am giving a fact based recommendation.
 

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blkaplan said:
Would you recommend the BRZ column for an aftermarket swap?

How does it compare to some of the other solutions out there like the Prius column?
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I would avoid the brz. They have an issue related to California lemon law, and this may sound weird... Will cut power steering if it's held at or above 7nm for more than two seconds. This is plaguing a lot of brz track drivers. If it's a street car, it's perfectly fine.

Prius is king here, especially if done with a shunt mod. There's a guy running a Ls3, dct, Gen 1 Camaro with 315 fronts on track, and it takes it like a champ on Prius column.

Our solution for the brz guys is a Prius column swap, and funny enough it seems to be a direct swap too.
 
NMStec said:
My user name is my company name, and I have posted factual information right after the person that mentioned my company. Do I stand to profit? Yes. Although that depends on what system you want. I've so far opensourced the solution to volvo pumps and brz columns.

In regards to Un-named stuff, I call the power steering controller, universal nms-PSC.

That being said, volvo is not the best option at all. In limp mode I'd say it's barely usable so a controller is still a recommendation. Does not have to be mine. But the point behind it is you can save money by buying a mazda pump which is identical.

So yes, technically I stand to profit, but I also am not lying or pushing my product. I am giving a fact based recommendation.
Click to expand...
Like I said originally. I have the Volvo pump. Thanks though. I do appreciate the info though
 
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