Adding another comment sorry. So I found out that the volvo power steering pump pushes out 1700psi at max which the content creator said the pump runs at a constant 75% load without a Pulse Width Modulator. So a typical belt driven pump at idle runs at about 125psi. At around 5000rpm most pumps will produce 700psi. So that means you can run the pump at a little less than half speed and you will produce around 700 to 850psi which will quiet down the motor and give more longevity due to it not producing as much heat. Hope this is helpful information.
Thanks Cory, the light finally came on for me with this video. Pump is a bit louder than I would have expected, but probably wouldn't notice with vehicle running. Appreciate it!
The only issue I've found is under high demand quick steering the steering gets real heavy because the can bus isn't turning up the demand , need to find a way of getting more out of it
Next soon video us GoproHero Max spherical video .. two variant 180°/ 360gradule ° video ... online variants... control video 100meter you car drift..rally..speed solo variants 😎👍
What I've found out is the main reason the EPS pump from volvo is so loud is because a lot of people doing the conversion only hook up the power, ground, and the 12V signal wire. But no one installs a PWM to control the speed of the pump which in the stock volvo car the ECU or PCM has a built in pwm for the pump. Without a PWM the pump is at 100% speed all the time which may or may not hurt the pump depending on how often you do a fluid flush but with a PWM you can experiment with the speed at 50% when normal driving then go to 80% for racing. I don't believe the pump needs to be at 100% at all times.
Noone bothers with it because it's not PWM, it's CAN. Basically the pump has a built in controller that listens for signals from the CAN network to vary its output It would be nice if someone finally cracked it because it would allow you to seamlessly vary the pump output based on a couple of variables, mainly speed (I hate overassisted steering for highway driving)
Seems to me the pump is faster/cheaper/easier to change than the steering rack. So I'd let the 'most valuable' thing in the loop dictate the fluid. Probably does no difference in real life, atg would probably be fine too.
Thank you 🙏 very nice video helps a lot. I’m trying to use a 2015 Nissan Murano electric power steering pump right now see if it is the same as the Volvo but quieter.
Thank you for this video. I'm currently planning on installing an s40 pump in my 13. Got lucky and sourced one at the yard. Found a few write ups, but I do like your take on th separate toggle for the signal wire. I had seen one somewhere else where they tied two wires together. I'm not that knowledgeable when it comes to an fittings, but how do you go about attaching the an fitting to the line. ?
No problem! I'm glad it helped. It's a pretty simple setup really. It's been reliable for me and I'm going on a year and a half on mine. Basically I just used the original hard-line, cut it right before it turns down, and then put on a -6an male to 5/16 hard-line adapter. But apparently there is a fitting you can buy now that is the same thread as the original hard-line and it just converts to a straight an line. I definitely recommend using either a ptfe line or hydraulic line from your local oreillys. I had a 6 jic line made at oreillys and it works great. 6 jic is the same as 6an.
I haven't at all. The only fuse problem I've had is the fuse holder itself is cheap so the fuse came loose a couple times. I just ziptied the cover tight and it's been good ever since. It's all worked perfectly for over a year now.
If you wire it the same way that I do, it just runs at a constant 75% duty cycle all the time. So its heavier at slow speeds. Supposedly if you take the column sensors and wire up a speed sensor to the other two wires you can make it regulate like normal, but I haven't had any issues the way it is.
It can't. Maybe if you put it in the well there where the relay box is, but it's too big to go on the shock tower. It's like 15 inches tall. And something like a 6x6 square at the base.
Hey i did this upgrade to my LS400 because I kept loosing ps while mid corner full rpm and now i have extremely hard steering at idle and i camt weight transfer the wheel is just too stiff. No fluid leaks, no air in the system. Any ideas?
I'm not sure without physically looking at it. My brother in law says he feels like my car is a little heavy too, but thats compared to his s13 with a 1uz and Toyota pump. It could possibly be a weak pump or its just not enough for you system, but I can't imagine an ls400 system being that much different. As cheap as the pumps are, id try another pump out of a junkyard just to see if its consistent.
@@corysnider 180 dollars isnt exactly cheap but I get that. My buddy has an s13 with the volvo pump and twin superchargers, he doesnt have this issue. Its not just a little hard, its almost as if the switch is off. It actually is the same if the switch is off.
Damn.. I get mine for $40 a piece! That's crazy. I would make sure all the power and grounds are solid. Have you checked to see if its coming on? Without your engine running for example? And where is it located? Does it have a super long line? Or is it in the engine bay? If it feels the same as when it's off, I'd say that pump is just bad or there is some kind of block in the system. Mine is definitely noticeable on and off.
@@corysnider its in the engine bay right next to the original ps pump location. The feed line to the rack is the oem line (new) and the return line now runs through a Mishimoto oil color instead of just a single tube for cooling. The pump is audible and i can turn it on without the car running so yes I verify its on and can see fluid flowing in it when its on. Voltage is at 13.65v at idle with both electric fans running as well as the ps pump.
Yeah, I'm not sure on that then. I've used it and a couple buddies have all with the same success. If you can find another pump for cheap, I'd try that just to narrow it down. It sounds like it all should be good to go. I wonder if the problem lies inside your rack at this point? Mayne that was part of your source problem with losing ps before hand? I'm really not sure.
I bought one of these pumps from autopart store and it died after 6 months. I was running ATF and Im curious if that's what killed the pump, but I don't want to be leaking out the rack if I make the switch.
Well, yes.. but im pretty sure it was just the rack leaking from age. It didn't leak out of the seals, just the pinion area. I've had it rebuilt and it has been fine ever since.
I like it. It works pretty well in my opinion. I'm sure there are better mechanical pumps out there, but its not worth the extra costs to me. The Volvo pump is definitely more than sufficient.
No sir. Only time I've ever had any electrical failure was when the trigger wire accidentally came loose from the zip tie and cooked itself on the header. But then it killed the whole pump.
Adding another comment sorry. So I found out that the volvo power steering pump pushes out 1700psi at max which the content creator said the pump runs at a constant 75% load without a Pulse Width Modulator. So a typical belt driven pump at idle runs at about 125psi. At around 5000rpm most pumps will produce 700psi. So that means you can run the pump at a little less than half speed and you will produce around 700 to 850psi which will quiet down the motor and give more longevity due to it not producing as much heat. Hope this is helpful information.
Thanks Cory, the light finally came on for me with this video. Pump is a bit louder than I would have expected, but probably wouldn't notice with vehicle running. Appreciate it!
You're very welcome! It is pretty loud until the engine comes on! Glad I could help!
Thanks for explaining this a little more!
No problem! Any more questions, feel free to ask!
The only issue I've found is under high demand quick steering the steering gets real heavy because the can bus isn't turning up the demand , need to find a way of getting more out of it
Next soon video us GoproHero Max spherical video .. two variant 180°/ 360gradule ° video ... online variants... control video 100meter you car drift..rally..speed solo variants
😎👍
Thanks for this!
No problem!
What I've found out is the main reason the EPS pump from volvo is so loud is because a lot of people doing the conversion only hook up the power, ground, and the 12V signal wire. But no one installs a PWM to control the speed of the pump which in the stock volvo car the ECU or PCM has a built in pwm for the pump. Without a PWM the pump is at 100% speed all the time which may or may not hurt the pump depending on how often you do a fluid flush but with a PWM you can experiment with the speed at 50% when normal driving then go to 80% for racing. I don't believe the pump needs to be at 100% at all times.
Noone bothers with it because it's not PWM, it's CAN. Basically the pump has a built in controller that listens for signals from the CAN network to vary its output
It would be nice if someone finally cracked it because it would allow you to seamlessly vary the pump output based on a couple of variables, mainly speed (I hate overassisted steering for highway driving)
Seems to me the pump is faster/cheaper/easier to change than the steering rack. So I'd let the 'most valuable' thing in the loop dictate the fluid. Probably does no difference in real life, atg would probably be fine too.
Thank you 🙏 very nice video helps a lot. I’m trying to use a 2015 Nissan Murano electric power steering pump right now see if it is the same as the Volvo but quieter.
No problem!! I'm glad to help. My Volvo one isn't too loud, but my exhaust definitely over powers it.
You need to find away of tricking the can bus feed so it's more responsive when under high steering demand .
Thank you for this video. I'm currently planning on installing an s40 pump in my 13. Got lucky and sourced one at the yard. Found a few write ups, but I do like your take on th separate toggle for the signal wire. I had seen one somewhere else where they tied two wires together. I'm not that knowledgeable when it comes to an fittings, but how do you go about attaching the an fitting to the line. ?
No problem! I'm glad it helped. It's a pretty simple setup really. It's been reliable for me and I'm going on a year and a half on mine. Basically I just used the original hard-line, cut it right before it turns down, and then put on a -6an male to 5/16 hard-line adapter. But apparently there is a fitting you can buy now that is the same thread as the original hard-line and it just converts to a straight an line. I definitely recommend using either a ptfe line or hydraulic line from your local oreillys. I had a 6 jic line made at oreillys and it works great. 6 jic is the same as 6an.
What is the pump psi at limp mode, and what is the flow rate as well at limp mode?
I have no idea. Never measured them.
👍😎
Does playing this on the TV with subtitles still constitute as not needing a man? Because I open my own doors and what not 😏
🤣 I would be worried about how the subtitles pick up my words.. but sure! Now you can wire up a power steering pump without a man!
Im looking into doing this on my sr powered datsun truck
I’d like to see a detailed water pump video.
Will do! I also have an accusump video coming too.
Doing this right now. I have seen other say 80 amp fuse. Have you had any issues with the 60 amp fuse?
Thank you!
I haven't at all. The only fuse problem I've had is the fuse holder itself is cheap so the fuse came loose a couple times. I just ziptied the cover tight and it's been good ever since. It's all worked perfectly for over a year now.
@@corysnider Thank you. Great detail in your video!
@@fstlnj29 No problem! Thank you!
Can you adjust the power steering pressure? Like to get more feel?
No. It runs at a constant 75%.
Does the pump regulate the assist it provides at all? Or is it the same amount of assist regardless of how fast you’re going?
If you wire it the same way that I do, it just runs at a constant 75% duty cycle all the time. So its heavier at slow speeds. Supposedly if you take the column sensors and wire up a speed sensor to the other two wires you can make it regulate like normal, but I haven't had any issues the way it is.
@@corysnider thanks
How tall is the power steering pump? I'm curious if it can fit on the stock PS reservoir location.
It can't. Maybe if you put it in the well there where the relay box is, but it's too big to go on the shock tower. It's like 15 inches tall. And something like a 6x6 square at the base.
Unlucky. I think I'll look at the version with the remote filler and see if it will fit underneath the headlight.
@@corysnider that's where I'm planning on putting mine
Hey i did this upgrade to my LS400 because I kept loosing ps while mid corner full rpm and now i have extremely hard steering at idle and i camt weight transfer the wheel is just too stiff. No fluid leaks, no air in the system. Any ideas?
I'm not sure without physically looking at it. My brother in law says he feels like my car is a little heavy too, but thats compared to his s13 with a 1uz and Toyota pump. It could possibly be a weak pump or its just not enough for you system, but I can't imagine an ls400 system being that much different. As cheap as the pumps are, id try another pump out of a junkyard just to see if its consistent.
@@corysnider 180 dollars isnt exactly cheap but I get that. My buddy has an s13 with the volvo pump and twin superchargers, he doesnt have this issue. Its not just a little hard, its almost as if the switch is off. It actually is the same if the switch is off.
Damn.. I get mine for $40 a piece! That's crazy. I would make sure all the power and grounds are solid. Have you checked to see if its coming on? Without your engine running for example? And where is it located? Does it have a super long line? Or is it in the engine bay? If it feels the same as when it's off, I'd say that pump is just bad or there is some kind of block in the system. Mine is definitely noticeable on and off.
@@corysnider its in the engine bay right next to the original ps pump location. The feed line to the rack is the oem line (new) and the return line now runs through a Mishimoto oil color instead of just a single tube for cooling. The pump is audible and i can turn it on without the car running so yes I verify its on and can see fluid flowing in it when its on. Voltage is at 13.65v at idle with both electric fans running as well as the ps pump.
Yeah, I'm not sure on that then. I've used it and a couple buddies have all with the same success. If you can find another pump for cheap, I'd try that just to narrow it down. It sounds like it all should be good to go. I wonder if the problem lies inside your rack at this point? Mayne that was part of your source problem with losing ps before hand? I'm really not sure.
Have you experienced any leaking of the rack with the fluid you're using?
I bought one of these pumps from autopart store and it died after 6 months. I was running ATF and Im curious if that's what killed the pump, but I don't want to be leaking out the rack if I make the switch.
Well, yes.. but im pretty sure it was just the rack leaking from age. It didn't leak out of the seals, just the pinion area. I've had it rebuilt and it has been fine ever since.
so it works well for drifting? no need for upgrade?
I like it. It works pretty well in my opinion. I'm sure there are better mechanical pumps out there, but its not worth the extra costs to me. The Volvo pump is definitely more than sufficient.
@@corysnider yup well as long as its never made u crash (reliable) then i think ima go for one
It Definitely hasn't yet. 🤞
Aye man, I have a 30amp fuse on my setup and it keeps popping at full lock, did you ever experience that problem?
No sir. Only time I've ever had any electrical failure was when the trigger wire accidentally came loose from the zip tie and cooked itself on the header. But then it killed the whole pump.
@@corysnider im gonna swap in a 60amp fuse and see how it does. thanks for the quick reply!
@@oksynth no problem! That should do it! Just too much load at full lock.
How many amps does this pump draw?
Not sure on exact amperage, but I have a 60 Amp large bussman fuse and it's never blown. So can't be more than 60.
@@corysnider Thank you for the reply and info.
Would this fit on my g35 ?
It should. It can pretty much fit in anything with the right parts.